CN210546832U

CN210546832U - Floating reamer

Info

Publication number: CN210546832U
Application number: CN201920925361.5U
Authority: CN
Inventors: 燕珂; 杨华生; 邓攀; 胡华平; 杨骏; 熊友国; 肖乾
Original assignee: Yichang Yanshi Sci Tech Development Co ltd
Current assignee: Yichang Yanshi Sci Tech Development Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-05-19
Anticipated expiration: 2029-06-19

Abstract

The utility model relates to a reamer floats, it includes the main cutter body, the piston structure that resets is installed to the inside cooperation of the overhanging post of the main cutter body, the piston structure that resets is through sealed guide structure spacing fixed outside the post inside, the piston structure that resets cooperatees with the piston rod, the end of piston rod has the blade that is used for the slagging-off through blade mount pad fixed mounting. The cutter head of the reamer can be adjusted within a certain range as required, so that the reamer can adapt to a larger slag removal range than the inner diameter range of the small sleeve, and the quality and the efficiency of slag removal operation are guaranteed.

Description

Floating reamer

Technical Field

The utility model relates to a blast furnace slagging-off clearance cutter, especially a wind gap is with expanding reamer that floats.

Background

The wind gap is the essential air supply arrangement of blast furnace, generally by the big cover, well cover and little cover are constituteed, each wind cover, especially the little cover needs often to be changed, because ore in the blast furnace, coke etc. burn and produced a large amount of slay, the slay pastes at the inner wall and the front end of little cover, the dismantlement and the installation of giving the little cover bring the difficulty, current dismouting wind cover operation is accomplished by personnel basically, clear away the slay of little cover terminal surface, must pass through the little cover hole that the diameter is less with the cutter, then clear away the slay of little cover terminal surface, and the diameter range that needs to clear away the slay hole is bigger than little cover internal diameter, if adopt the fixed length handle of a knife to drive the blade when carrying out the slay and clear away, just can't clear away the slay that is greater than little. Therefore, it is necessary to develop a floating reamer for removing slag from a tuyere, so as to ensure that the slag removal range can be adjusted as required.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a unsteady reamer is provided, the tool bit of this reamer can be adjusted at the certain limit as required, and then makes its adaptation than the bigger slagging-off scope of little cover internal diameter scope, has guaranteed the quality and the efficiency of slagging-off operation.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the floating reamer comprises a main cutter body, a reset piston structure is installed inside an extending column of the main cutter body in a matched mode, the reset piston structure is fixed inside the extending column through a sealing guide structure in a limiting mode, the reset piston structure is matched with a piston rod, and a blade used for removing slag is installed at the end of the piston rod through a blade installation seat in a fixed mode.

The main cutter body comprises a cutter body connecting column, a first threaded column matched with the transmission shaft is processed on the cutter body connecting column, and a plurality of outward extending columns are uniformly distributed at the bottom of the cutter body connecting column; and a vertical axial oil hole is processed in the center of the cutter body connecting column and communicated with a horizontal axial oil hole processed in the center of the outward extending column in a penetrating manner.

The reset piston structure comprises a piston cavity, the piston cavity is processed at the central position of the outer extending column, a piston is installed inside the piston cavity in a matched mode, a sealing ring is sleeved outside the piston, the piston cavity is communicated with the horizontal axial oil hole of the main cutter body, a piston rod is fixedly installed on the end face of the piston, a reset spring is sleeved on the piston rod, and the other end of the reset spring is in contact fit with a sealing guide structure installed at the end of the outer extending column.

The piston rod is provided with a threaded shaft section matched with the blade mounting seat, the threaded shaft section is in transition connection with the optical shaft section through a rectangular shaft section, the end of the optical shaft section is fixedly connected with the piston, and the optical shaft section is provided with a guide key groove matched with the sealing guide structure.

The sealing guide structure comprises a wear-resistant bearing sleeve sleeved outside the piston rod, the wear-resistant bearing sleeve is fixed at the end of the outer extending column through an end cover, a guide key is fixedly mounted inside the wear-resistant bearing sleeve through a guide key mounting groove, and the guide key and a guide key groove in the piston rod form sliding fit.

The blade mounting seat comprises a blade seat main body, a blade mounting groove is machined in the end of the blade seat main body, a piston rod mounting hole is machined in the center of one end of the blade seat main body, and the piston rod mounting hole is connected with a threaded shaft section of a piston rod in a matched mode.

The blade is a hard alloy blade and is fixed on a blade mounting groove of the blade mounting seat through a welding machine.

And the vertical axial oil hole of the main cutter body is connected with a hydraulic oil supply system.

The utility model discloses there is following beneficial effect:

1. through adopting the above-mentioned structure, it can be used for the slay in blast furnace equipment well wind gap to clear away the operation, in the use, can drive the outer post that stretches through main cutter physical stamina in step, drive the piston rod by the outer post again, and there is the piston rod to drive blade mount pad and the blade of its end and rotate, and then carry out rotatory slagging-off operation to the wind gap, and can control stretching out of piston rod through adopting foretell piston structure that resets, and then stretching out or retracting of control blade, and then adapt to the regional slagging-off reaming operation of reducing, the effect of slagging-off has been guaranteed.

2. It can link to each other with the transmission shaft through its one side of the main cutter body of above-mentioned structure, and on the other hand can be used for the installation of blade, and then has guaranteed that the main cutter body can drive the blade and rotate and realize the slagging-off. In the operation process, the hydraulic oil inside the vertical axial oil hole enters the horizontal axial oil hole, and then enters the piston cavity through the horizontal axial oil hole to form piston matching with the piston.

3. The reset piston structure can be used for driving the piston rod to extend out or retract, so that the reset piston structure can be used for adapting to deslagging operation of holes with different inner diameters; when retraction is required, the hydraulic oil is unloaded and the piston will retract along the piston chamber under the action of the return spring.

4. The sealing guide structure with the structure can guide the piston rod, so that the piston rod is ensured to move along the axial direction of the extending column all the time without rotating; and simultaneously, the blade mounting seat is prevented from rotating in the deslagging process.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

3 fig. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3

Fig. 3 is a schematic view of the present invention in use.

In the figure: the device comprises a blade 1, a blade mounting seat 2, a piston rod 3, a sealing guide structure 4, a main blade body 5, a reset piston structure 6, a slag zone 7 to be removed, a tuyere small sleeve 8 and a transmission shaft 9;

a blade holder main body 201, a blade mounting groove 202, a piston rod mounting hole 203;

a threaded shaft section 301, a rectangular shaft section 302, a guide key groove 303 and an optical axis section 304;

a first threaded column 501, a vertical axial oil hole 502, a cutter body connecting column 503, a horizontal axial oil hole 504 and an outward extending column 505;

return spring 601, piston 602, sealing washer 603, piston chamber 604.

B: a contracted state diagram; c: and (4) an overhanging state diagram.

Detailed Description

The following describes embodiments of the present invention with reference to the accompanying drawings.

Example 1:

referring to fig. 1-3, the floating reamer comprises a main reamer body 5, a reset piston structure 6 is installed inside an extending column 505 of the main reamer body 5 in a matched manner, the reset piston structure 6 is fixed inside the extending column 505 in a limited manner through a sealing guide structure 4, the reset piston structure 6 is matched with a piston rod 3, and a blade 1 for removing slag is fixedly installed at the end of the piston rod 3 through a blade installation seat 2. Through adopting the slay of its blast furnace equipment middle tuyere that can be used for of reamer of above-mentioned structure to clear away the operation, in the use, can drive outer post 505 that stretches through main cutter body 5 in step, drive piston rod 3 by outer post 505 again, and there is piston rod 3 to drive blade mount pad 2 and blade 1 of its end rotatory, and then carry out rotatory slagging-off operation to the wind gap, and can control stretching out of piston rod 3 through adopting foretell reset piston structure 6, and then stretching out or retracting of control blade 1, and then adapt to the regional slagging-off reaming operation of reducing, the effect of slagging-off has been guaranteed.

Further, the main cutter body 5 comprises a cutter body connecting column 503, a first threaded column 501 for matching with the transmission shaft 9 is processed on the cutter body connecting column 503, and a plurality of outward extending columns 505 are uniformly distributed at the bottom of the cutter body connecting column 503; a vertical axial oil hole 502 is formed in the center of the cutter body connecting column 503, and the vertical axial oil hole 503 is communicated with a horizontal axial oil hole 504 formed in the center of an outward extending column 505 in a penetrating manner. The main cutter body 5 with the structure can be connected with the transmission shaft 9 on one hand, and can be used for installing the blades on the other hand, so that the main cutter body 5 can drive the blades 1 to rotate to remove slag. In the operation process, the hydraulic oil passing through the inside of the vertical axial oil hole 502 enters the horizontal axial oil hole 504, and then enters the piston cavity 604 through the horizontal axial oil hole 504 to form piston matching with the piston 602.

Further, the reset piston structure 6 includes a piston cavity 604, the piston cavity 604 is processed at the central position of the outward extending column 505, a piston 602 is installed in the piston cavity 604 in a matching manner, a sealing ring 603 is sleeved outside the piston 602, the piston cavity 604 is communicated with the horizontal axial oil hole 504 of the main cutter body 5, a piston rod 3 is fixedly installed on the end surface of the piston 602, a reset spring 601 is sleeved on the piston rod 3, and the other end of the reset spring 601 is in contact fit with a sealing guide structure 4 installed at the end of the outward extending column 505. The reset piston structure 6 can be used for driving the piston rod 3 to extend or retract, so that the reset piston structure can be used for slag removal operation of holes with different inner diameters, when a blade needs to extend, hydraulic oil is injected into the piston cavity 604, the piston 602 is driven by the hydraulic oil, and the piston rod 3 is driven to extend through the piston 602; when retraction is required, the hydraulic oil is unloaded and the piston will retract along the piston chamber 604 under the action of the return spring 601.

Further, a threaded shaft section 301 used for being matched with the blade mounting seat 2 is processed on the piston rod 3, the threaded shaft section 301 is connected with a smooth shaft section 304 in a transition mode through a rectangular shaft section 302, the end of the smooth shaft section 304 is fixedly connected with a piston 602, and a guide key groove 303 used for being matched with the sealing guide structure 4 is processed on the smooth shaft section 304. The piston rod 3 with the structure can be used for installing the blade installation seat 2 and further installing the blade.

Further, the seal guide structure 4 comprises a wear-resistant support sleeve 402 sleeved outside the piston rod 3, the wear-resistant support sleeve 402 is fixed at the end of the outward extending column 505 through an end cover 403, a guide key 401 is fixedly installed inside the wear-resistant support sleeve 402 through a guide key installation groove 404, and the guide key 401 and the guide key groove 303 on the piston rod 3 form a sliding fit. The sealing guide structure 4 with the structure can guide the piston rod 3, so that the piston rod is ensured to move axially along the outward extending column 505 all the time without rotating; and simultaneously prevents the blade mounting seat 2 from rotating in the deslagging process.

Further, the blade mounting seat 2 includes a blade seat main body 201, a blade mounting groove 202 is processed at an end of the blade seat main body 201, a piston rod mounting hole 203 is processed at a central position of one end of the blade seat main body 201, and the piston rod mounting hole 203 is connected with a threaded shaft section 301 of the piston rod 3 in a matching manner. The insert mounting seat 2 configured as described above can be used for mounting the insert 1.

Further, the blade 1 is made of a hard alloy blade and is fixed on the blade mounting groove 202 of the blade mounting seat 2 by a welding machine. The hard alloy blade can play a wear-resistant role, and the service life of the hard alloy blade is further effectively prolonged. Simultaneously ensures the deslagging quality.

Further, the vertical axial oil hole 502 of the main cutter body 5 is connected with a hydraulic oil supply system. The hydraulic oil supply system with the structure can drive the piston rod 3 to extend out, so that the diameter of the reaming hole is changed.

Further, blade 1 contains multiple different specifications, and then adapts to the slagging-off operation of different grade type slay, moreover the overhanging scope of blade 1 floats according to the oil pressure change of the hydraulic oil of design.

Further, the number of the extending columns 505 is plural.

Example 2:

the use method of any floating reamer comprises the following steps:

the method comprises the following steps: connecting the main cutter body 5 with a transmission shaft 9 of the reamer;

step two: when the interior of the tuyere small sleeve 8 needs to be reamed, pressure oil in the piston cavity 604 is unloaded, the piston rod 3 contracts under the action of the reset spring 601 and drives the blade 1 to contract, so that the reamer passes through the tuyere small sleeve 8 by the minimum outer diameter, then the reamer is started, the main cutter body 5 is driven to rotate by the transmission shaft 9, and slag in the tuyere small sleeve 8 is removed by the blade 1;

step three: when slag removal and reaming are required to be performed on the large-diameter range of the end of the tuyere small sleeve 8, pressure oil is introduced into the piston cavity 604, the piston 602 is driven by the pressure oil, the piston rod 3 is driven by the piston 602, the blade 1 is driven by the piston rod 3 to extend out, the reamer is started again, the main cutter body 5 is driven by the transmission shaft 9 to rotate, and slag in the large-size range of the end of the tuyere small sleeve 8 is removed by the blade 1;

step four: when reaming is completed, hydraulic oil is unloaded, the blade 1 contracts under the action of the return spring 601, and the reaming cutter retracts.

The structure in this example is only for illustration and explanation of the claims so as to facilitate the reading and understanding of the patent, and should not be construed as limiting the claims, and the scope of the present invention should be determined by the scope of the claims and the legal equivalents thereof.

Claims

1. Unsteady reamer, its characterized in that: the main cutter body (5) is arranged, a reset piston structure (6) is installed inside an extending column (505) of the main cutter body (5) in a matched mode, the reset piston structure (6) is fixed inside the extending column (505) through a sealing guide structure (4) in a limiting mode, the reset piston structure (6) is matched with a piston rod (3), and a blade (1) used for removing slag is fixedly installed at the end of the piston rod (3) through a blade installation seat (2).

2. The floating reamer of claim 1, wherein: the main cutter body (5) comprises a cutter body connecting column (503), a first threaded column (501) matched with the transmission shaft (9) is processed on the cutter body connecting column (503), and a plurality of outward extending columns (505) are uniformly distributed at the bottom of the cutter body connecting column (503); a vertical axial oil hole (502) is machined in the center of the cutter body connecting column (503), and the vertical axial oil hole (502) is communicated with a horizontal axial oil hole (504) machined in the center of an outward extending column (505) in a penetrating mode.

3. The floating reamer of claim 1, wherein: reset piston structure (6) include piston chamber (604), the central point that post (505) were stretched outward in piston chamber (604) processing puts, piston (602) are installed to piston chamber (604) inside cooperation, the outside cover of piston (602) is equipped with sealing washer (603), piston chamber (604) are linked together with horizontal axial oilhole (504) of main cutter body (5), the terminal surface fixed mounting of piston (602) has piston rod (3), the cover is equipped with reset spring (601) on piston rod (3), the other end of reset spring (601) contacts the cooperation with sealed guide structure (4) of installing at the outer post (505) end of stretching out.

4. The floating reamer of claim 1 or 3, wherein: the processing has threaded shaft section (301) that is used for with blade mount pad (2) matched with on piston rod (3), threaded shaft section (301) pass through rectangle shaft section (302) and smooth shaft section (304) transition and link to each other, the end and the piston (602) of smooth shaft section (304) are fixed continuous, processing has on smooth shaft section (304) and is used for and sealed guide structure (4) matched with direction keyway (303).

5. The floating reamer of claim 1 or 3, wherein: the sealing guide structure (4) comprises a wear-resistant bearing sleeve (402) sleeved outside the piston rod (3), the wear-resistant bearing sleeve (402) is fixed at the end of the outer extending column (505) through an end cover (403), a guide key (401) is fixedly mounted inside the wear-resistant bearing sleeve (402) through a guide key mounting groove (404), and the guide key (401) and a guide key groove (303) in the piston rod (3) form sliding fit.

6. The floating reamer of claim 1, wherein: the blade mounting seat (2) comprises a blade seat main body (201), a blade mounting groove (202) is machined in the end of the blade seat main body (201), a piston rod mounting hole (203) is machined in the center of one end of the blade seat main body (201), and the piston rod mounting hole (203) is connected with a threaded shaft section (301) of the piston rod (3) in a matched mode.

7. The floating reamer of claim 1, wherein: the blade (1) is a hard alloy blade and is fixed on a blade mounting groove (202) of the blade mounting seat (2) through a welding machine.

8. The floating reamer of claim 1, wherein: and the vertical axial oil hole (502) of the main cutter body (5) is connected with a hydraulic oil supply system.