Scraper protection device of vertical mill

Abstract

The utility model discloses a scraper protection device of a vertical mill, which comprises an annular gas delivery pipe, the top of the annular gas delivery pipe is communicated with a gas inlet pipe, the bottom of the annular gas delivery pipe is fixedly connected with a support rod, and the bottom of the support rod is movably connected with a scraper body through a pin shaft. One side of the scraper body is movably connected with an air cylinder through a pin shaft, the other end of the air cylinder is movably connected with the bottom of an annular air conveying pipe through a pin shaft, and the surface of the air cylinder is communicated with an inner cavity of the annular air conveying pipe through a hose. By adopting the folding mechanism, the scraper blade body can be folded into the inner cavity of the protection box when not used, and meanwhile, after the scraper blade body is folded into the inner cavity of the protection box, the bottom of the protection box is sealed by moving the cover plate, so that the scraper blade body can be well isolated and protected, contact between the scraper blade body and raw materials can be reduced, and the service life of the scraper blade body is prolonged. Therefore, abrasion of the scraper body can be reduced, and the service life of the scraper body can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical mill technical field, concretely is a kind of scraper protection device of vertical mill. BACKGROUND

[0002] Vertical roller mill is short for vertical mill, a kind of cement raw material, cement clinker, slag and coal slag grinding processing, with simple structure, manufacturing and use cost low characteristics. Including machine body, grinding disc device and transmission device, the centering structure that determines the rotation center is arranged between machine body and grinding disc device, the bottom of grinding disc device is fixedly provided with rotation guide rail, and the grinding disc device can be rotatably supported on the machine body through the rotation guide rail;

[0003] The grinding disc device is in driving connection with the transmission device, and a scraper is needed to remove the excess material during the operation of the vertical mill, such as the patent "a material scraping device for vertical roller mill" disclosed by China, patent No.

[0004] The applicant finds that the scraper of the above-mentioned patent does not have a protection device, which is easy to contact with the material directly during the operation of the grinding material, thereby increasing the degree of wear and reducing the service life. UTILITY MODEL CONTENT

[0005] The utility model is aimed at providing a scraper protection device for vertical mill, which has the advantage of long service life and solves the problem raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of scraper protection device of vertical mill, including annular gas duct, the top of the annular gas duct is connected with air inlet pipe, the bottom of the annular gas duct is fixedly connected with support rod, the bottom of the support rod is movably connected with scraper body by pin shaft, one side of the scraper body is movably connected with air cylinder by pin shaft, the other end of the air cylinder is movably connected with the bottom of annular gas duct by pin shaft, the surface of the air cylinder is communicated with the inner chamber of annular gas duct by hose;

[0007] The bottom of the annular gas duct and located outside the scraper body is fixedly connected with a protection box, the bottom of the protection box is provided with a cover plate, the top of the cover plate is fixedly connected with a slide rod at both ends, the other end of the slide rod penetrates into the inner chamber of the protection box, the top of the cover plate is provided with a gear slot, the inner chamber of the gear slot is engaged with a rotating gear, the rotating gear is fixedly connected with a rotating shaft at the shaft center, both ends of the rotating shaft are fixedly connected with mounting plates through bearings, the side surface of the mounting plate is fixedly connected with the surface of the protection box, the surface of the rotating shaft is fixedly connected with a first bevel gear, the top of the first bevel gear is engaged with a second bevel gear, the top of the second bevel gear is fixedly connected with a transmission shaft, the transmission shaft is fixedly connected with the surface of the protection box through a bearing seat, the top of the transmission shaft is fixedly connected with a third bevel gear, the top of the third bevel gear is engaged with a gear ring, the outer surface of the gear ring is fixedly connected with the surface of the protection box through a bearing, the top of the gear ring is engaged with a driving gear, one side of the driving gear is fixedly connected with a driving motor, one side of the driving motor is fixedly connected with the inner wall of the annular gas duct.

[0008] Preferably, the protection box is provided with a through hole through the slide rod at both ends of one side, and the one end of the slide rod in the inner chamber of the protection box is fixedly connected with a shielding plate.

[0009] Preferably, the other end of the air inlet pipe penetrates into the outside of the vertical mill cover and is communicated with the air pump.

[0010] Preferably, the surface of the protection box is provided with a mounting hole, and the bearing fixed to the outer surface of the gear ring is fixedly connected with the inner wall of the mounting hole.

[0011] Preferably, the scraper body comprises a mounting frame and a scraping plate, and the mounting frame is fixedly connected with the scraping plate through bolts.

[0012] Preferably, the bottom of the annular gas duct is fixedly connected with a connecting frame, and the surface of the connecting frame is fixedly connected with the inner wall of the vertical mill cover through bolts.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model discloses a folding mechanism can be folded to the inner chamber of protection case when the scraper body is not used, and the bottom of protection case is sealed through moving the cover plate after folding to the inner chamber of protection case, so that the scraper body can be well isolated and protected, the contact between the scraper body and raw materials can be reduced, the abrasion of the scraper body can be reduced, and the service life of the scraper body can be prolonged.

[0015] 2. The utility model discloses a through -hole can guarantee the smooth movement of slide rod, and through setting up the connecting frame, the annular gas -supplying pipe can be fixed and connected conveniently and quickly. ACCURACY OF DRAWINGS

[0016] Figure 1 It is the structure schematic drawing of the utility model;

[0017] Figure 2 It is the structure bottom view schematic drawing of the utility model;

[0018] Figure 3 It is the protection case and gear ring connecting structure schematic drawing of the utility model;

[0019] Figure 4 It is the protection case and gear ring connecting structure sectional view schematic drawing of the utility model;

[0020] Figure 5 It is the cover plate and protection case connecting structure sectional view schematic drawing of the utility model.

[0021] In the drawing: 1, annular gas -supplying pipe;2, inlet pipe;3, support rod;4, scraper body;5, air cylinder;6, protection case;7, cover plate;8, slide rod;9, gear slot;10, rotating gear;11, rotating shaft;12, second bevel gear;13, transmission shaft;14, third bevel gear;15, gear ring;16, driving gear;17, driving motor;18, connecting frame. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of the utility model.

[0023] The components of the utility model are all general standard components or components known to the person skilled in the art, and their structure and principle can be known by the person skilled in the art through technical manual or through conventional experimental method. Embodiment one:

[0024] Please refer toFigures 1-5 , the embodiment is provided for the purpose of folding storage, the following technical scheme is provided, specifically discloses: a scraper protection device of vertical mill, the top of annular gas pipe 1 is communicated with air inlet pipe 2, the bottom of annular gas pipe 1 is fixedly connected with support rod 3, the bottom of support rod 3 is movably connected with scraper body 4 through pin shaft, one side of scraper body 4 is movably connected with air cylinder 5 through pin shaft, the other end of air cylinder 5 is movably connected with the bottom of annular gas pipe 1 through pin shaft, the surface of air cylinder 5 is communicated with the inner cavity of annular gas pipe 1 through hose, the other end of air inlet pipe 2 penetrates to the outside of vertical mill cover and is communicated with air pump, scraper body 4 includes mounting bracket and scraping plate, mounting bracket is fixedly connected with scraping plate through bolt, the bottom of annular gas pipe 1 is fixedly connected with connecting frame 18, the surface of connecting frame 18 is fixedly connected with the inner wall of vertical mill cover through bolt, by setting connecting frame 18, annular gas pipe 1 can be fixedly connected conveniently and quickly. Example two:

[0025] Please refer to Figures 1-5 , the embodiment is provided for the purpose of sealing protection, the following technical scheme is provided, specifically discloses: the bottom of annular gas pipe 1 and the outside of scraper body 4 are fixedly connected with protection box 6, the bottom of protection box 6 is provided with cover plate 7, the top of cover plate 7 is fixedly connected with slide rod 8 at both ends, the other end of slide rod 8 penetrates to the inner cavity of protection box 6, the top of cover plate 7 is provided with gear slot 9, the inner cavity of gear slot 9 is engaged with rotating gear 10, the axis of rotating gear 10 is fixedly connected with rotating shaft 11, the two ends of rotating shaft 11 are fixedly connected with mounting plate through bearing, the side surface of mounting plate is fixedly connected with the surface of protection box 6, the surface of rotating shaft 11 is fixedly connected with first bevel gear, the top of first bevel gear is engaged with second bevel gear 12, the top of second bevel gear 12 is fixedly connected with transmission shaft 13, transmission shaft 13 is fixedly connected with the surface of protection box 6 through bearing seat, the top of transmission shaft 13 is fixedly connected with third bevel gear 14, the top of third bevel gear 14 is engaged with gear ring 15, the outer surface of gear ring 15 is fixedly connected with the surface of protection box 6 through bearing, the top of gear ring 15 is engaged with driving gear 16, one side of driving gear 16 is fixedly connected with driving motor 17, one side of driving motor 17 is fixedly connected with the inner wall of annular gas pipe 1, both ends of one side of protection box 6 are provided with through hole through slide rod 8, one end of slide rod 8 in the inner cavity of protection box 6 is fixedly connected with shielding plate, the surface of protection box 6 is provided with mounting hole, the bearing fixed to the outer surface of gear ring 15 is fixedly connected with the inner wall of mounting hole, through the setting of through hole, the smooth movement of slide rod 8 can be ensured.

[0026] The control mode of the utility model is automatically controlled through the controller, the control circuit of the controller can be realized through simple programming of the person skilled in the art, it is the public knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the utility model will not explain the control mode and the circuit connection in detail.

[0027] In use, the gas in the inner cavity of the cylinder 5 is depressurized, which drives the scraper body 4 to fold into the inner cavity of the protection box 6, then the driving motor 17 is started, the driving motor 17 drives the driving gear 16 to rotate, the driving gear 16 drives the gear ring 15 to rotate, the gear ring 15 drives the third bevel gear 14 to rotate, the third bevel gear 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the second bevel gear 12 to rotate, the second bevel gear 12 drives the first bevel gear to rotate, the first bevel gear drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the gear to rotate, the gear cooperates with the gear slot 9, which drives the cover plate 7 to move and seal the bottom of the protection box 6, thereby providing good protection for the scraper body 4.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A scraper protection device for a vertical mill comprising a ring-shaped gas duct (1), characterized in that: The top of the annular gas conveying pipe (1) is communicated with an air inlet pipe (2), the bottom of the annular gas conveying pipe (1) is fixedly connected with a supporting rod (3), the bottom of the supporting rod (3) is movably connected with a scraper body (4) through a pin shaft, one side of the scraper body (4) is movably connected with a gas cylinder (5) through a pin shaft, the other end of the gas cylinder (5) is movably connected with the bottom of the annular gas conveying pipe (1) through a pin shaft, and the surface of the gas cylinder (5) is communicated with the inner cavity of the annular gas conveying pipe (1) through a hose. The bottom of the annular gas conveying pipe (1) and outside the scraper body (4) is fixedly connected with a protection box (6), the bottom of the protection box (6) is provided with a cover plate (7), the top of the cover plate (7) is fixedly connected with slide rods (8) at the front and rear ends, the other end of the slide rod (8) penetrates into the inner cavity of the protection box (6), the top of the cover plate (7) is provided with a gear slot (9), the inner cavity of the gear slot (9) is engaged with a rotating gear (10), the shaft center of the rotating gear (10) is fixedly connected with a rotating shaft (11), the two ends of the rotating shaft (11) are fixedly connected with mounting plates through bearings, the side surface of the mounting plate is fixedly connected with the surface of the protection box (6), the surface of the rotating shaft (11) is fixedly connected with a first bevel gear, the top of the first bevel gear is engaged with a second bevel gear (12), the top of the second bevel gear (12) is fixedly connected with a transmission shaft (13), the transmission shaft (13) is fixedly connected with the surface of the protection box (6) through a bearing seat, the top of the transmission shaft (13) is fixedly connected with a third bevel gear (14), the top of the third bevel gear (14) is engaged with a gear ring (15), the outer surface of the gear ring (15) is fixedly connected with the surface of the protection box (6) through a bearing, the top of the gear ring (15) is engaged with a driving gear (16), one side of the driving gear (16) is fixedly connected with a driving motor (17), and one side of the driving motor (17) is fixedly connected with the inner wall of the annular gas conveying pipe (1).

2. A scraper guard for a vertical mill according to claim 1, characterised in that: The front and rear ends of one side of the protection box (6) are provided with through holes through which the slide rods (8) pass, and one end of the slide rod (8) in the inner cavity of the protection box (6) is fixedly connected with a shielding plate.

3. A scraper guard for a vertical mill according to claim 1, characterised in that: The other end of the air inlet pipe (2) penetrates to the outside of the vertical mill cover and is communicated with the air pump.

4. A scraper guard for a vertical mill according to claim 1, characterised in that: The surface of the protection box (6) is provided with a mounting hole, and the bearing fixedly connected with the outer surface of the gear ring (15) is fixedly connected with the inner wall of the mounting hole.

5. A scraper guard for a vertical mill according to claim 1, characterised in that: The scraper body (4) comprises a mounting frame and a scraping plate, and the mounting frame is fixedly connected with the scraping plate through bolts.

6. A scraper guard for a vertical mill according to claim 1, characterised in that: The bottom of the annular gas conveying pipe (1) is fixedly connected with a connecting frame (18), and the surface of the connecting frame (18) is fixedly connected with the inner wall of the vertical mill cover through bolts.

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