Coal mine crusher tooth plate convenient to maintain

Abstract

The invention discloses a coal mine crusher tooth plate convenient to maintain, which comprises a plate body, the top of the plate body is provided with a plurality of tooth strips distributed at equal intervals, each tooth strip is provided with a dismounting mechanism, the bottom of the plate body is fixedly connected with a frame body, the frame body is provided with a limiting mechanism, each tooth strip is provided with a base part, a crushing part and a curved part, and each tooth strip is fixedly connected with the plate body. The threaded rod is sequentially provided with an anti-oxidation layer, a wear-resistant layer, a corrosion-resistant layer, a heat insulation layer and an alloy layer from outside to inside. According to the device, a single abraded threaded rod can be disassembled and replaced through the disassembling and assembling mechanism, and the good crushing effect on a coal mine is guaranteed; the tooth plate and the crusher can be clamped through the limiting mechanism, and double fixation is realized by matching with a bolt, so that the fixing effect of the tooth plate and the crusher is good; by arranging the anti-oxidation layer, the wear-resistant layer, the corrosion-resistant layer, the heat insulation layer and the alloy layer, the threaded rod is resistant to wear and corrosion, and the service life is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, and in particular to a tooth plate of a coal mine crusher which is easy to maintain. Background Art

[0002] Coal mine crusher is a commonly used crusher. The crusher tooth plate is generally composed of tooth bars and plate body. The tooth bars will be subjected to large load force during the crushing process. After a period of use, the tooth bars will wear out. The wear of the tooth bars will affect the efficiency of crushing materials, so they need to be replaced in time.

[0003] Since the tooth bar and the plate are integrated, the entire crusher tooth plate needs to be replaced when the tooth bar is worn. This not only causes a waste of resources, but also increases the difficulty of maintenance and is not conducive to product promotion. Therefore, we designed a coal mine crusher tooth plate that is easy to maintain to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a coal mine crusher tooth plate that is easy to maintain. The tooth plate can be disassembled and replaced by a disassembly and assembly mechanism, thereby ensuring a good crushing effect on the coal mine; the tooth plate and the crusher can be clamped by a limiting mechanism, and then double fixation is achieved with bolts, thereby achieving a good fixing effect between the tooth plate and the crusher; by arranging an anti-oxidation layer, a wear-resistant layer, a corrosion-resistant layer, a heat-insulating layer and an alloy layer, the tooth bar is made wear-resistant, corrosion-resistant and resistant, thereby extending its service life.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tooth plate of a coal mine crusher which is easy to maintain comprises a plate body, a plurality of tooth bars which are evenly spaced on the top of the plate body, a disassembly mechanism on each tooth bar, a frame body which is fixedly connected to the bottom of the plate body, a limiting mechanism on the frame body, a base portion, a crushing portion and a curved portion on the tooth bar, and the materials of the tooth bar are arranged from the outside to the inside in sequence as an anti-oxidation layer, a wear-resistant layer, a corrosion-resistant layer, a heat-insulating layer and an alloy layer.

[0007] Preferably, the disassembly and assembly mechanism includes an insert block fixedly connected to the bottom of the tooth bar, a slot is provided on the plate body, the insert block is inserted into the slot, a screw rod is penetrated through the plate body and rotatably connected to the plate body, the outer wall of the screw rod is sleeved with two movable plates threadedly connected to the plate body, two sliding grooves are provided in the plate body, the two movable plates are respectively located in the sliding grooves and slidably connected to the inner wall thereof, the opposite ends of the two movable plates are fixedly connected with positioning plates, the two positioning plates both penetrate the plate body and are slidably connected to the plate body, the insert block has two positioning grooves, the two positioning plates are respectively inserted into the positioning grooves and are set.

[0008] Preferably, the limiting mechanism includes a worm that passes through the frame and is rotatably connected thereto, one end of the worm is fixedly connected to a handle, the worm is meshed with a worm wheel, and the worm wheel is coaxially fixedly connected to two threaded rods, both of which are rotatably connected to the frame, the outer walls of the two threaded rods are sleeved with crusher clamps threadedly connected thereto, and two sliding rods are fixedly connected to the frame, both of which pass through the two crusher clamps and are slidably connected thereto.

[0009] Preferably, the screw rod is provided with two sections of external threads with opposite thread directions, the two movable plates are respectively sleeved on the outer walls of the two sections of external threads with opposite thread directions, and the threads of the two threaded rods are arranged in opposite directions.

[0010] Preferably, one end of the screw rod is fixedly connected to a handle, a rotation groove is provided on the plate body, and the handle is arranged in the rotation groove.

[0011] Preferably, the material of the anti-oxidation layer is a coating made from a high-temperature solution of ultrafine inorganic metal oxides.

[0012] Preferably, the wear-resistant layer is made of alumina ceramics.

[0013] Preferably, the corrosion-resistant layer is made of monel alloy.

[0014] Preferably, the thermal insulation layer is made of rock wool.

[0015] Preferably, the alloy layer is made of high manganese steel alloy.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The staff holds the handle and rotates it to drive the screw to rotate, so that the movable plates and positioning plates on both sides move back to each other until the two positioning plates are out of the positioning groove. The tooth bar can be removed and replaced, which is convenient for maintenance of the worn tooth bar.

[0018] 2. The staff holds the handle and rotates it to drive the worm, worm wheel and two threaded rods to rotate, so that the crusher clamps on both sides slide back to back on the sliding rod until the two crusher clamps are pressed tightly against the coal mine crusher, and then the crusher clamps and plate body are installed and fixed with bolts, and the tooth plate is firmly fixed through double fixation.

[0019] 3. By setting an anti-oxidation layer, a wear-resistant layer, a corrosion-resistant layer, a heat-insulating layer and an alloy layer, the tooth bar is made wear-resistant, corrosion-resistant and durable, thereby extending its service life.

[0020] To sum up, the present invention can disassemble and replace a worn single tooth bar through the disassembly and assembly mechanism, thereby ensuring a good crushing effect on the coal mine; the tooth plate and the crusher can be clamped through the limiting mechanism, and then double fixation is achieved with bolts, so that the fixing effect of the tooth plate and the crusher is good; by setting an anti-oxidation layer, a wear-resistant layer, a corrosion-resistant layer, a heat-insulating layer and an alloy layer, the tooth bar is wear-resistant, corrosion-resistant and durable, thereby extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A first structural schematic diagram of a tooth plate of a coal mine crusher that is easy to maintain proposed by the present invention;

[0022] Figure 2 A second structural schematic diagram of a tooth plate of a coal mine crusher that is easy to maintain proposed by the present invention;

[0023] Figure 3 A cross-sectional view of a disassembly and assembly mechanism in a tooth plate of a coal mine crusher which is easy to maintain proposed by the present invention;

[0024] Figure 4 A material cross-sectional view of a tooth plate of a coal mine crusher that is easy to maintain proposed by the present invention.

[0025] In the figure: 1 plate body, 2 tooth bar, 3 plug block, 4 slot, 5 screw rod, 6 movable plate, 7 sliding groove, 8 positioning plate, 9 positioning groove, 10 handle, 11 rotating groove, 12 frame, 13 worm, 14 handle, 15 worm wheel, 16 threaded rod, 17 crusher splint, 18 sliding rod, 19 anti-oxidation layer, 20 wear-resistant layer, 21 corrosion-resistant layer, 22 heat insulation layer, 23 alloy layer, 24 base, 25 crushing part, 26 curved part. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-Figure 4A tooth plate of a coal mine crusher with easy maintenance includes a plate body 1, a plurality of tooth bars 2 with equal spacing are arranged on the top of the plate body 1, each tooth bar 2 is provided with a disassembly mechanism, the disassembly mechanism includes an insert block 3 fixedly connected to the bottom of the tooth bar 2, a slot 4 is opened on the plate body 1, the insert block 3 is inserted into the slot 4, a screw rod 5 rotatably connected to the plate body 1 is penetrated, the outer wall of the screw rod 5 is sleeved with two movable plates 6 threadedly connected to the screw rod 5, the screw rod 5 is provided with two sections of external threads in opposite directions, the two movable plates 6 are respectively sleeved on the outer walls of the two sections of external threads in opposite directions, and the plate body 1 is provided with two sliding grooves 7, two moving plates 6 are respectively located in the sliding grooves 7 and are slidably connected to the inner wall thereof, the opposite ends of the two moving plates 6 are fixedly connected with positioning plates 8, the two positioning plates 8 both penetrate the plate body 1 and are slidably connected thereto, the insert block 3 is provided with two positioning grooves 9, the two positioning plates 8 are respectively inserted into the positioning grooves 9, one end of the screw rod 5 is fixedly connected with a handle 10, the plate body 1 is provided with a rotating groove 11, the handle 10 is located in the rotating groove 11, the two positioning plates 8 are moved relative to or away from each other by holding the handle 10 and rotating it, and then the worn tooth bar 2 is replaced and maintained.

[0028] The bottom of the plate body 1 is fixedly connected with a frame body 12, and a limiting mechanism is provided on the frame body 12. The limiting mechanism includes a worm 13 that penetrates the frame body 12 and is rotatably connected thereto. One end of the worm 13 is fixedly connected with a handle 14, and the worm 13 is meshed with a worm wheel 15. The worm wheel 15 is coaxially fixedly connected with two threaded rods 16, and the thread directions of the two threaded rods 16 are arranged in opposite directions. The two threaded rods 16 are both rotatably connected to the frame body 12, and the outer walls of the two threaded rods 16 are sleeved with a crusher clamping plate 17 that is threadedly connected thereto. Two sliding rods 18 are fixedly connected to the frame body 12, and the two sliding rods 18 penetrate the two crusher clamping plates 17 and are slidably connected thereto. By holding the handle 14 and rotating it, the crusher clamping plates 17 on both sides can be moved relative to each other, so that the crusher clamping plates 17 are clamped and fixed to the crusher, and the bolt mounting holes provided on the crusher clamping plates 17 cooperate with the bolts to realize double fixation of the tooth plate, and the tooth plate has good stability, so as to avoid the tooth plate being fixed only by bolts, and the bolts falling off due to long-term vibration of the tooth plate, which affects the stability of the tooth plate.

[0029] The tooth bar 2 is provided with a base 24, a crushing part 25 and a curved part 26. In the present application, the crushing part 25 is arranged in a truncated cone shape, and the inclination angle of the crushing part 25 is 45 degrees. In the present application, the curved part 26 is a smooth curved surface, which has a good crushing effect on coal mines. The material of the tooth bar 2 is sequentially arranged from the outside to the inside as an anti-oxidation layer 19, a wear-resistant layer 20, a corrosion-resistant layer 21, a heat-insulating layer 22 and an alloy layer 23. The material of the anti-oxidation layer 19 is a coating made of a high-temperature solution of ultrafine inorganic metal oxides, and the ultrafine inorganic metal oxides The paint made of high-temperature solution can withstand temperatures up to 1700 degrees Celsius. The paint is completely transparent and has no odor at room temperature and high temperature. The coating film does not affect the original color of the object after painting, has good adhesion, and has certain heat insulation, anti-oxidation, and anti-corrosion protection effects, extending the service life of the substrate and ensuring that the substrate does not rust at high temperatures; the wear-resistant layer 20 is made of alumina ceramics, and the Rockwell hardness of alumina ceramics is HRA80-90, which is second only to diamond and far exceeds the hardness of wear-resistant steel and stainless steel. Wear resistance, the wear resistance of alumina ceramics is equivalent to 266 times that of manganese steel and 171.5 times that of high chromium cast iron, which can extend the service life of the equipment by at least ten times; the material of the corrosion-resistant layer 21 is monel alloy, which is a nickel-based alloy material with good corrosion resistance in seawater, chemical solvents, ammonia, sulfur, chlorine, hydrogen chloride, various acidic media such as sulfuric acid, hydrofluoric acid, hydrochloric acid, phosphoric acid, organic acids, alkaline media, salts and molten salts; the material of the thermal insulation layer 22 is rock wool, which plays a role in heat insulation. When the tooth bar 2 works for a long time, a large amount of heat will be generated to avoid the temperature of the crusher shell being too high; the material of the alloy layer 23 is high manganese steel alloy, which is a high-strength steel material, mainly used for severe working conditions such as impact, extrusion, and material wear. The anti-oxidation layer 19, wear-resistant layer 20, corrosion-resistant layer 21, thermal insulation layer 22 and alloy layer 23 can prevent the tooth bar 2 from oxidation, wear, corrosion and heat insulation, thereby extending the service life of the tooth bar 2.

[0030] In the present invention, when the tooth bar 2 works for a long time, it will be worn. At this time, the staff holds the handle 10 to rotate and drive the screw rod 5 to rotate, so that the movable plates 6 and the positioning plates 8 on both sides move away from each other until the two positioning plates 8 are out of the positioning grooves 9. The tooth bar 2 can be removed for replacement, and the replaced tooth bar 2 and the plug block 3 are inserted into the slot 4. The handle 10 is rotated in the reverse direction to rotate and drive the screw rod 5 to rotate, so that the movable plates 6 and the positioning plates 8 on both sides move relatively, until the two positioning plates 8 are inserted into the positioning grooves 9 to complete the fixation of the plug block 3 and the tooth bar 2, and the worn tooth bar 2 can be replaced. The worn tooth bar 2 can be maintained; when the entire tooth plate needs regular maintenance, the staff holds the handle 14 and rotates it to drive the worm 13, the worm wheel 15, and the two threaded rods 16 to rotate, so that the crusher clamps 17 on both sides slide back to back on the sliding rod 18, and the fixed tooth plate can be removed for maintenance. After the maintenance is completed, hold the handle 14 and rotate it in the opposite direction to make the crusher clamps 17 on both sides move relative to each other until the two crusher clamps 17 are pressed tightly against the coal mine crusher, and then use bolts to install and fix the crusher clamps 17 and the plate body 1, so that the tooth plate is firmly fixed through double fixation.

[0031] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal mine crusher tooth plate with easy maintenance, comprising a plate body (1), characterized in that: The top of the plate body (1) is provided with a plurality of tooth bars (2) distributed at equal intervals, each of the tooth bars (2) is provided with a disassembly and assembly mechanism, the bottom of the plate body (1) is fixedly connected with a frame body (12), the frame body (12) is provided with a limit mechanism, the tooth bars (2) are provided with a base (24), a crushing part (25) and a curved part (26), and the materials of the tooth bars (2) are sequentially provided from the outside to the inside as an anti-oxidation layer (19), a wear-resistant layer (20), a corrosion-resistant layer (21), a heat-insulating layer (22) and an alloy layer (23).

2. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The disassembly and assembly mechanism comprises an insert block (3) fixedly connected to the bottom of the tooth bar (2); a slot (4) is provided on the plate body (1), and the insert block (3) is inserted into the slot (4); a screw rod (5) is passed through the plate body (1) and is rotatably connected thereto; the outer wall of the screw rod (5) is sleeved with two movable plates (6) threadedly connected thereto; two sliding grooves (7) are provided in the plate body (1), and the two movable plates (6) are respectively located in the sliding grooves (7) and are slidably connected to the inner wall thereof; the opposite ends of the two movable plates (6) are fixedly connected with positioning plates (8), and the two positioning plates (8) pass through the plate body (1) and are slidably connected thereto; the insert block (3) is provided with two positioning grooves (9), and the two positioning plates (8) are respectively inserted into the positioning grooves (9) and are arranged.

3. The easy-to-maintain coal mine crusher tooth plate according to claim 2, characterized in that: The limiting mechanism comprises a worm (13) penetrating through a frame (12) and rotatably connected thereto, one end of the worm (13) being fixedly connected to a handle (14), the worm (13) being meshed with a worm wheel (15), the worm wheel (15) being coaxially fixedly connected to two threaded rods (16), both of which are rotatably connected to the frame (12), the outer walls of the two threaded rods (16) being sleeved with a crusher clamping plate (17) threadedly connected thereto, and two sliding rods (18) being fixedly connected to the frame (12), both of which are penetrating through the two crusher clamping plates (17) and slidably connected thereto.

4. The easy-to-maintain coal mine crusher tooth plate according to claim 3, characterized in that: The screw rod (5) is provided with two sections of external threads with opposite thread directions, the two movable plates (6) are respectively sleeved on the outer walls of the two sections of external threads with opposite thread directions, and the thread directions of the two threaded rods (16) are opposite.

5. The easy-to-maintain coal mine crusher tooth plate according to claim 2, characterized in that: One end of the screw rod (5) is fixedly connected to a handle (10); a rotation groove (11) is provided on the plate body (1); and the handle (10) is arranged in the rotation groove (11).

6. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The material of the anti-oxidation layer (19) is a coating made from a high-temperature solution of ultrafine inorganic metal oxides.

7. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The material of the wear-resistant layer (20) is alumina ceramics.

8. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The material of the corrosion-resistant layer (21) is monel alloy.

9. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The material of the heat insulation layer (22) is rock wool.

10. The easy-to-maintain coal mine crusher tooth plate according to claim 1, characterized in that: The alloy layer (23) is made of high manganese steel alloy.

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