Mill scraper device capable of quickly replacing wear-resistant lining plate

Abstract

The utility model discloses a mill scraper device capable of quickly replacing a wear-resistant lining plate, and relates to the technical field of coal mills. The grinding device comprises a grinding bowl and a scraping plate component arranged on the grinding bowl, the scraping plate component comprises a mounting seat, a scraping plate shaft, a connecting plate and a lining plate, the mounting seat is connected with the grinding bowl, two supporting plates are arranged at the bottom end of the mounting seat, the scraping plate shaft is rotationally arranged between the two supporting plates, two connecting lug plates are arranged on the scraping plate shaft, and the lining plate is arranged on the connecting lug plates. The connecting lug plate is connected with a connecting plate, an inserting groove is formed in one side of the connecting plate, and an inserting plate matched with the inserting groove is arranged on one side of the lining plate. According to the coal mill lining plate, the lining plate is assembled and disassembled in the mode that the inserting plate is inserted into the inserting groove, the lining plate can be conveniently replaced, fire operation is not needed during replacement, the safety in the maintenance process of a coal mill is improved, and meanwhile, compared with a screw connection mode, mechanical faults caused by screw abrasion can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mills, in particular to a mill scraper device capable of quickly replacing wear-resistant lining plates. Background Art

[0002] The scraper device of the coal mill is used to discharge the gravel and coal inside the coal mill out of the side body. The degree of wear and use of the scraper is directly related to the safe and stable operation of the coal mill equipment. Damage to the scraper device will cause the accumulation of gravel and coal inside the side body of the coal mill, damage the seal of the coal mill base, cause the leakage of air dust and pollute the environment, and in severe cases, cause spontaneous combustion, burn through the air duct and other faults, endangering the safety of the equipment.

[0003] The scraper device of the medium-speed mill is a device that discharges the gravel and coal slag in the mill. During operation, the liner is in direct contact with the gravel and coal slag, and the liner is extremely easy to wear and needs to be repaired and replaced regularly. In the existing structure, the wear-resistant liner and the scraper are connected with screws. The nut surface of the screw is in contact with the material. If the screw is worn, the liner will fall off, which will cause equipment failure.

[0004] Therefore, a mill scraper device capable of quickly replacing wear-resistant lining plates is proposed. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a mill scraper device capable of quickly replacing a wear-resistant liner.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A mill scraper device with a quickly replaceable wear-resistant liner comprises a grinding bowl and a scraper component arranged on the grinding bowl, the scraper component comprising a mounting seat, a scraper shaft, a connecting plate and a liner, the mounting seat being connected to the grinding bowl, two support plates being provided at the bottom end of the mounting seat, the scraper shaft being rotatably arranged between the two support plates, two connecting ear plates being provided on the scraper shaft, the connecting ear plates being connected to the connecting plate, a plug-in slot being provided on one side of the connecting plate, and a plug-in plate matching the plug-in slot being provided on one side of the liner.

[0008] Furthermore, the plug-in slot is composed of an integrally formed flat slot and a dovetail slot, and the plug-in plate is composed of two dovetail plug-in plates.

[0009] Furthermore, the plug-in slot passes through one side of the connecting plate.

[0010] Furthermore, the connecting plate is provided with a limiting component for limiting the lining plate, a clearance groove is provided on one side of the connecting ear plate, and a connecting groove is provided on the connecting plate.

[0011] Furthermore, the limiting component includes a connecting tube arranged at the top end of the connecting plate and a limiting plug-in plate slidably arranged inside the connecting groove. A limiting plug-in groove adapted to the limiting plug-in plate is opened on one side of the lining plate. A connecting rod is slidably arranged inside the connecting tube, a fixing plate is arranged at the top end of the connecting rod, a spring is arranged inside the connecting tube, the connecting rod is connected to the spring, and the plug-in plate is connected to the connecting rod.

[0012] Furthermore, a sliding groove connected to the communicating groove is provided on the connecting ear plate, and a sliding block adapted to the sliding groove is provided on the limiting plug-in plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model realizes the installation and disassembly of the liner by adopting the method of plugging the plug-in plate into the plug-in slot, which can facilitate the replacement of the liner without using fire during replacement, thereby improving the safety during the maintenance of the coal mill. At the same time, compared with the screw connection method, it can avoid mechanical failure caused by screw wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the scraper component of the utility model;

[0017] Figure 3 This is a cross-sectional view of the scraper component of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the scraper body of the utility model;

[0019] Figure 5 This is an enlarged view of part A of the utility model;

[0020] Figure 6 It is a schematic diagram of the lining structure of the utility model.

[0021] Figure numerals: 1, grinding bowl; 3, scraper component; 301, mounting seat; 3011, support plate; 302, scraper shaft; 303, connecting plate; 3031, connecting ear plate; 3032, plug-in groove; 304, lining plate; 3041, plug-in plate; 3042, limiting plug-in groove; 4, limiting component; 401, yielding groove; 402, connecting groove; 403, connecting cylinder; 404, connecting rod; 405, fixing plate; 406, spring; 407, limiting plug-in plate; 408, slide groove; 409, slider. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0026] like Figure 1-6As shown, a mill scraper device with a wear-resistant liner that can be quickly replaced includes a grinding bowl 1 and a scraper component 3 arranged on the grinding bowl 1, the scraper component 3 includes a mounting seat 301, a scraper shaft 302, a connecting plate 303 and a liner 304, the mounting seat 301 is connected to the grinding bowl 1, two support plates 3011 are provided at the bottom end of the mounting seat 301, the scraper shaft 302 is rotatably arranged between the two support plates 3011, two connecting ear plates 3031 are provided on the scraper shaft 302, the connecting ear plates 3031 are connected to the connecting plate 303, a plug-in groove 3032 is provided on one side of the connecting plate 303, and a plug-in plate 3041 adapted to the plug-in groove 3032 is provided on one side of the liner 304; specifically, the grinding The bowl 1 is installed inside the mill, and the liner 304 is installed and disassembled by plugging the plug plate 3041 into the plug slot 3032. The liner 304 can be easily replaced without using fire during replacement, which improves the safety during the maintenance of the coal mill. Compared with the screw connection method, it can avoid mechanical failures caused by screw wear. At the same time, since the grinding bowl 1 will drive the scraper member 3 to perform circular motion during rotation, an outward centrifugal force will be generated, causing the liner 304 to be self-locking when the equipment is running. Under the action of the limiting member 4, the stability of the installation of the liner 304 is further guaranteed.

[0027] like Figure 4 and 6 As shown, the plug-in slot 3032 is composed of an integrally formed flat slot and a dovetail slot, and the plug-in board 3041 is composed of two dovetail plug-in boards; specifically, the design of the flat slot provides space for the dovetail plug-in board to be plugged in, so that when installing, the dovetail plug-in board can be first inserted into the inside of the flat slot, and then pushed to plug the plug-in board 3041 into the inside of the plug-in slot 3032, so that not much space is required during installation, and the installation is more convenient.

[0028] like Figure 4 As shown, the plug-in slot 3032 passes through one side of the connecting plate 303 ; specifically, the plug-in slot 3032 passes through one side but not the other side, so when rotating, one side of the lining plate 304 abuts against one side of the plug-in slot 3032 .

[0029] like Figure 5 As shown, a limiting member 4 is provided on the connecting plate 303 for limiting the lining plate 304, a clearance groove 401 is provided on one side of the connecting ear plate 3031, and a connecting groove 402 is provided on the connecting plate 303; specifically, the clearance groove 401 is provided above the connecting plate 303, which is convenient for operating the limiting member 4. At the same time, the limiting member 4 is provided on the inner side of the connecting plate 303, and the connecting plate 303 can also block the falling coal slag.

[0030] like Figure 5 As shown, the limiting member 4 includes a connecting cylinder 403 arranged at the top of the connecting plate 303 and a limiting plug-in plate 407 slidably arranged inside the communicating groove 402. A limiting plug-in groove 3042 adapted to the limiting plug-in plate 407 is opened on one side of the lining plate 304. A connecting rod 404 is slidably arranged inside the connecting cylinder 403. A fixing plate 405 is arranged at the top of the connecting rod 404. A spring 406 is arranged inside the connecting cylinder 403. The connecting rod 404 is connected to the spring 406, and the plug-in plate 3041 is connected to the connecting rod 404. Specifically, the spring 406 and the plug-in plate Under the action of its own gravity, the limiting plug-in plate 407 can be inserted into the limiting plug-in groove 3042, so as to limit the lining plate 304. When the lining plate 304 is removed, the connecting rod 404 is pulled upward to disengage the limiting plug-in plate 407 from the limiting plug-in groove 3042, so that the lining plate 304 can be removed. The fixed plate 405 provided can block the coal slag and prevent the coal slag from entering the interior of the connecting tube 403. At the same time, during the rotation process, the connecting rod 404 is not subjected to an upward force, thereby ensuring its limiting stability.

[0031] like Figure 5 As shown, a sliding groove 408 communicating with the communicating groove 402 is provided on the connecting ear plate 3031 , and a sliding block 409 adapted to the sliding groove 408 is provided on the limiting plug-in plate 407 .

[0032] In summary: the installation and disassembly of the liner 304 is achieved by using the plug-in plate 3041 to plug into the plug-in slot 3032, which can facilitate the replacement of the liner 304. No fire is required during the replacement, which improves the safety during the maintenance of the coal mill. At the same time, compared with the screw connection method, it can avoid mechanical failures caused by screw wear. At the same time, since the grinding bowl 1 will drive the scraper component 3 to perform circular motion during the rotation, an outward centrifugal force will be generated, resulting in the liner 304 being clamped outward to the inside of the plug-in slot 3032 to form a self-locking during the operation of the equipment, and the stability of the installation of the liner 304 is further guaranteed under the action of the limiting component 4.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A mill scraper device capable of quickly replacing a wear-resistant liner, comprising a grinding bowl (1) and a scraper member (3) arranged on the grinding bowl (1), characterized in that: The scraper member (3) comprises a mounting seat (301), a scraper shaft (302), a connecting plate (303) and a lining plate (304); the mounting seat (301) is connected to the grinding bowl (1); two supporting plates (3011) are provided at the bottom end of the mounting seat (301); the scraper shaft (302) is rotatably arranged between the two supporting plates (3011); two connecting ear plates (3031) are provided on the scraper shaft (302); the connecting ear plates (3031) are connected to the connecting plate (303); a plug-in slot (3032) is provided on one side of the connecting plate (303); and a plug-in plate (3041) adapted to the plug-in slot (3032) is provided on one side of the lining plate (304).

2. A mill scraper device capable of quickly replacing a wear-resistant liner according to claim 1, characterized in that: The plug-in slot (3032) is composed of an integrally formed flat slot and a dovetail slot, and the plug-in plate (3041) is composed of two dovetail plug-in plates.

3. A mill scraper device capable of quickly replacing a wear-resistant liner according to claim 1, characterized in that: The plug-in slot (3032) passes through one side of the connecting plate (303).

4. A mill scraper device capable of quickly replacing a wear-resistant liner according to claim 1, characterized in that: The connecting plate (303) is provided with a limiting member (4) for limiting the lining plate (304), a clearance groove (401) is provided on one side of the connecting ear plate (3031), and a connecting groove (402) is provided on the connecting plate (303).

5. A mill scraper device capable of quickly replacing a wear-resistant liner according to claim 4, characterized in that: The limiting component (4) comprises a connecting tube (403) arranged at the top end of the connecting plate (303) and a limiting plug-in plate (407) slidably arranged inside the communicating groove (402); a limiting plug-in groove (3042) adapted to the limiting plug-in plate (407) is provided on one side of the lining plate (304); a connecting rod (404) is slidably arranged inside the connecting tube (403); a fixing plate (405) is arranged at the top end of the connecting rod (404); a spring (406) is arranged inside the connecting tube (403); the connecting rod (404) is connected to the spring (406); and the plug-in plate (3041) is connected to the connecting rod (404).

6. A mill scraper device capable of quickly replacing a wear-resistant liner according to claim 5, characterized in that: The connecting ear plate (3031) is provided with a sliding groove (408) connected to the communicating groove (402), and the limiting plug-in plate (407) is provided with a sliding block (409) adapted to the sliding groove (408).

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