Crusher for roadway coal mine

Abstract

The utility model discloses a crusher for a roadway coal mine. The crusher effectively solves the problem that the size of particles crushed by the crusher is inconvenient to adjust according to requirements. Comprising a shell, front-back through moving grooves are formed in the left side and the right side of the shell correspondingly, rotating shafts which can rotate and are located in the moving grooves in the corresponding sides are arranged on the left side and the right side of the middle of the shell correspondingly, crushing rollers are fixedly connected to the outer walls of the rotating shafts, a liftable U-shaped pushing rod is slidably connected to the upper side of the shell, and limiting grooves are formed in the front side and the rear side of the shell correspondingly; the crusher is ingenious in structure and convenient to use, the shell is arranged for protecting the supporting structure, the moving groove, the rotating shafts, the crushing rollers, the push rod, the hinge rod and the connecting rod are arranged, the rotating shafts on the two sides can be driven by lifting of the push rod to synchronously move back to back or relatively in the moving groove, and the distance between the two crushing rollers is changed; and therefore, the purpose of changing the size of the crushed particles can be achieved, and different production requirements can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of mining crushers, in particular to a crusher for tunnel coal mines. Background Art

[0002] Mining crushers have the characteristics of large crushing ratio, uniform product particle size, simple structure, reliable operation, easy maintenance and economical operating costs. They are widely used in many departments such as mining, smelting, building materials, roads, railways, water conservancy and chemical industry. They can crush various materials with compressive strength not exceeding 320 MPa. Mining crushers are also used in the crushing of tunnel coal mines. There are many types of existing mining crushers, including mining double-roll crushers, which consist of a shell, two mutually offset and close crushing rollers and a motor. When in use, the ore is thrown into the shell, and then the motor drives the crushing rollers to rotate to crush the ore. During crushing, it is impossible to adjust the particles of the crushed coal material and adjust the crushing size according to production needs, which needs to be solved urgently. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a crusher for tunnel coal mines, which effectively solves the problem that it is inconvenient to adjust the size of the crushed particles of the crusher according to demand.

[0004] The technical solution is that the utility model comprises an outer shell, and movable grooves which penetrate front and back are respectively provided on the left and right sides of the outer shell, and rotating shafts which can rotate and are located in the movable grooves on the corresponding sides are respectively provided on the left and right sides of the middle part of the outer shell, and a crushing roller is fixedly connected to the outer wall of the rotating shaft, and a liftable and U-shaped pushing rod is slidably connected to the upper side of the outer shell, and limiting grooves are respectively provided on the front and rear sides of the outer shell, and hinged rods located in the limiting grooves are respectively fixedly connected on the front and rear sides of the lower end of the pushing rod, and two connecting rods which are opposite to each other on the left and right are rotatably connected to the outer wall of the hinged rod, and the connecting rods are hinged to the rotating shafts on the corresponding sides.

[0005] The upper end of the shell is slidably connected to a moving frame, an outer wall of the moving frame is provided with upper left and lower right inclined grooves, a push rod is located in the inclined groove, the upper end of the shell is fixedly connected to a hydraulic rod, and an output end of the hydraulic rod is fixedly connected to the moving frame.

[0006] The front side of the shell is provided with a giving way groove located below the limiting groove, and a rotatable lifting rod is provided in the giving way groove, and bevel gears are respectively provided on the front and rear sides of the lifting rod, the bevel gear on the front side is fixedly connected to the lifting rod, and the bevel gear on the rear side is rotatably connected to the lifting rod, a lifting rod is rotatably connected to the middle part of the lifting rod, a support plate is fixedly connected to the upper end of the lifting rod, and a bevel gear is rotatably connected to the outer wall of the lifting rod, and the front and rear sides of the bevel gear can respectively mesh with the bevel gears on the corresponding sides.

[0007] The front end of the shell is fixedly connected to a fixed rod located between the two movable grooves, the outer wall of the fixed rod is coaxially connected to a spur gear, the lower side of the hinge shaft and the upper end of the support plate are respectively fixedly connected to racks, the two racks are symmetrical on the left and right and mesh with the spur gears, and the right rack is slidably connected to the front side of the shell.

[0008] The opposite ends of the two bevel gears are respectively fixedly connected with pulleys, which are connected to the rotating shaft via belts. The front pulley is connected to the rotating shaft on the left side via belt transmission, and the rear pulley is connected to the transmission shaft on the right side via belt transmission.

[0009] A rotating motor coaxial with the lifting rod is slidably connected in the protective shell, and an output end of the rotating motor is fixedly connected to the lifting rod.

[0010] A bracket is fixedly connected to the lower side of the shell, a conveyor belt is arranged inside the bracket, and a protective shell is fixedly connected to the front end of the shell.

[0011] A feeding hopper is fixedly connected to the right side of the upper end of the shell, a conical gathering hopper is fixedly connected inside the shell, and the lower side of the gathering hopper is located between the two crushing rollers.

[0012] The utility model has an ingenious structure and is easy to use. A shell is provided for protecting the supporting structure. A movable groove, a rotating shaft, a crushing roller, a push rod, a hinged rod and a connecting rod are provided. The lifting and lowering of the push rod can drive the rotating shafts on both sides to move synchronously away from or relative to each other in the movable groove. The distance between the two crushing rollers is changed, thereby achieving the purpose of changing the size of the crushed particles, so as to adapt to different production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an axonometric drawing of the utility model.

[0014] Figure 2 It is a partially cutaway main axonometric drawing of the utility model.

[0015] Figure 3 It is a right axonometric view of the utility model with the protective shell removed.

[0016] Figure 4 It is the main axonometric drawing of the utility model without the protective shell.

[0017] Figure 5 It is an axonometric drawing of the rotating shaft in the utility model.

[0018] In the figure: 1. outer shell; 2. movable groove; 3. rotating shaft; 4. crushing roller; 5. pushing rod; 6. limiting groove; 7. hinged rod; 8. connecting rod; 9. movable frame; 10. inclined groove; 11. hydraulic rod; 12. giving way groove; 13. lifting rod; 14. bevel gear; 15. lifting rod; 16. supporting plate; 17. bevel gear; 18. spur gear; 19. rack; 20. pulley; 21. belt; 22. rotating motor; 23. bracket; 24. protective shell; 25. feeding hopper; 26. gathering bucket. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0020] Depend on Figures 1 to 5 It comprises a shell 1, wherein the left and right sides of the shell 1 are respectively provided with movable grooves 2 which penetrate front and back, the left and right sides of the middle part of the shell 1 are respectively provided with rotating shafts 3 which can rotate and are located in the movable grooves 2 on the corresponding sides, the outer wall of the rotating shaft 3 is fixedly connected with a crushing roller 4, a liftable and U-shaped pushing rod 5 is slidably connected with the upper side of the shell 1, the front and rear sides of the shell 1 are respectively provided with limiting grooves 6, the front and rear sides of the lower end of the pushing rod 5 are respectively fixedly connected with hinged rods 7 which are located in the limiting grooves 6, the outer wall of the hinged rod 7 is rotatably connected with two left and right opposite connecting rods 8, and the connecting rod 8 is hinged to the rotating shaft 3 on the corresponding side.

[0021] like Figures 1 to 5 As shown, a shell 1 is provided to protect the supporting structure, and a movable groove 2, a rotating shaft 3, a crushing roller 4, a push rod, a hinged rod 7 and a connecting rod 8 are provided. The lifting and lowering of the push rod can drive the rotating shafts 3 on both sides to move synchronously in opposite directions or relative to each other in the movable groove 2, and the distance between the two crushing rollers 4 is changed, thereby achieving the purpose of changing the size of the crushed particles, so as to adapt to different production needs.

[0022] The upper end of the shell 1 is slidably connected to a moving frame 9, and the outer wall of the moving frame 9 is provided with inclined grooves 10 on the upper left and lower right. The push rod 5 is located in the inclined groove 10, and the upper end of the shell 1 is fixedly connected to a hydraulic rod 11, and the output end of the hydraulic rod 11 is fixedly connected to the moving frame 9.

[0023] like Figure 1 As shown, the movable frame 9, the inclined slot 10 and the hydraulic rod 11 are provided, and the movable frame 9 can be driven to move by the hydraulic rod 11, so as to achieve the purpose of lifting and lowering the push rod 5, and provide power for changing the spacing of the crushing rollers 4.

[0024] The front side of the shell 1 is provided with a giving way groove 12 located below the limit groove 6, and a rotatable lifting rod 13 is arranged in the giving way groove 12. The front and rear sides of the lifting rod 13 are respectively provided with bevel gears 14. The bevel gear 14 on the front side is fixedly connected to the lifting rod 13, and the bevel gear 14 on the rear side is rotatably connected to the lifting rod 13. A lifting rod 15 is rotatably connected to the middle part of the lifting rod 13, and a support plate 16 is fixedly connected to the upper end of the lifting rod 15. A bevel gear 17 is rotatably connected to the outer wall of the lifting rod 15, and the front and rear sides of the bevel gear 17 can respectively mesh with the bevel gear 14 on the corresponding side.

[0025] like Figures 2 to 5 As shown, the setting of the give way slot 12, the lifting rod 13, the helical gear 14, the bevel gear 17, the lifting rod 15 and the support plate 16 can utilize the front helical gear 14 to drive the rear helical gear 14 to rotate via the bevel gear 17, thereby making the two helical gears 14 rotate synchronously in opposite directions, and the setting of the lifting rod 15 can drive the lifting rod 13 to move in the give way slot 12 through the lifting rod 15.

[0026] The front end of the shell 1 is fixedly connected to a fixed rod located between the two movable grooves 2, and the outer wall of the fixed rod is coaxially connected to a spur gear 18. The lower side of the hinged rod 7 and the upper end of the support plate 16 are respectively fixedly connected to racks 19. The two racks 19 are symmetrical and mesh with the spur gears 18. The right rack 19 is slidably connected to the front side of the shell 1.

[0027] like Figures 2 to 4 As shown, a fixed rod is provided for supporting the gear, and a spur gear 18 and a rack gear 19 are provided so that the lower lifting rod 13 can be driven to rise and fall synchronously through the action of the spur gear 18 and the rack gear 19 during the descending process of the hinge rod 7.

[0028] The opposite ends of the two bevel gears 14 are respectively fixedly connected with pulleys 20, which are connected to the rotating shaft 3 via belts 21. The front pulley 20 is connected to the rotating shaft 3 on the left side via belts 21, and the rear pulley 20 is connected to the transmission shaft on the right side via belts 21.

[0029] like Figures 2 to 3 As shown, the pulley 20 and the belt 21 are arranged so that the helical gear 14 can be used to drive the pulley 20 to rotate, and then the rotating shaft 3 on the corresponding side can be driven to rotate through the belt 21. The crushing rollers 4 on both sides rotate in opposite directions toward the middle, so that the coal blocks can be crushed.

[0030] A rotary motor 22 coaxial with the lifting rod 13 is slidably connected in the protection shell 24 , and an output end of the rotary motor 22 is fixedly connected to the lifting rod 13 .

[0031] like Figures 2 to 4 As shown, the rotary motor 22 is provided so that the rotary motor 22 can be used to provide power for the helical gear 14 to rotate, thereby providing power for the crushing roller 4 to rotate.

[0032] A bracket 23 is fixedly connected to the lower side of the shell 1 , a conveyor belt is arranged inside the bracket 23 , and a protective shell 24 is fixedly connected to the front end of the shell 1 .

[0033] like Figures 1 to 4 As shown, the support 23 and the conveyor belt are provided so that the support 23 can be used to support the whole, and the conveyor belt can be used to transport the crushed coal blocks.

[0034] A feeding hopper 25 is fixedly connected to the right side of the upper end of the shell 1 , and a conical gathering hopper 26 is fixedly connected inside the shell 1 . The lower side of the gathering hopper 26 is located between the two crushing rollers 4 .

[0035] like Figures 1 to 4 As shown, a feeding hopper 25 is provided to facilitate feeding, and a gathering hopper 26 is provided to gather the coal materials fed into the crusher so that the coal materials can enter between the two crushing rollers 4. Meanwhile, the discharge ports of the two hoppers are in a staggered state, which can prevent coal dust from flying randomly during crushing, thereby achieving the purpose of dust reduction.

[0036] When the utility model is in use, the hydraulic rod 11 is started according to production needs, and the hydraulic rod 11 drives the moving frame 9 to move, and then the inclined groove 10 can be used to drive the push rod 5 to move up and down. The lifting and lowering of the push rod 5 drives the two crushing rollers 4 to move through the hinge rod 7 and the connecting rod 8, thereby changing the distance between them, and then changing the size of the crushed particles;

[0037] During the lifting and lowering of the articulated rod 7, the articulated rod 7 drives the spur gear 18 to rotate via the rack 19 on the left, and the spur gear 18 drives the support plate 16 to move in the opposite direction to the articulated rod 7 via the rack 19 on the right, thereby driving the rotating motor 22 and the lifting rod 13 to lift and lower, so that the belt 21 is always in a taut state, so that the rotating motor 22 can always drive the crushing roller 4 to rotate, ensuring that the device can be used normally, and the two bevel gears 14 rotate synchronously and oppositely, which can ensure that the crushing roller 4 can crush the coal blocks normally.

[0038] In the present invention, the hydraulic rod 11 and the rotary motor 22 are both prior art and will not be described in detail herein.

[0039] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A crusher for use in a tunnel coal mine, comprising a housing (1), characterized in that: The outer shell (1) is provided with front-to-back through movable grooves (2) on the left and right sides respectively, and the middle part of the outer shell (1) is provided with rotatable rotating shafts (3) located in the movable grooves (2) on the corresponding sides respectively. A crushing roller (4) is fixedly connected to the outer wall of the rotating shaft (3). A lifting and lowering U-shaped pushing rod (5) is slidably connected to the upper side of the outer shell (1). The outer shell (1) is provided with front and rear side limit grooves (6) respectively, and the lower end of the pushing rod (5) is fixedly connected to the front and rear side hinged rods (7) located in the limit grooves (6) respectively. The outer wall of the hinged rod (7) is rotatably connected to two left and right opposite connecting rods (8), and the connecting rod (8) is hingedly connected to the rotating shaft (3) on the corresponding side.

2. A coal mine crusher according to claim 1, characterized in that: The upper end of the housing (1) is slidably connected to a moving frame (9), an outer wall of the moving frame (9) is provided with an upper left and lower right inclined groove (10), the push rod (5) is located in the inclined groove (10), the upper end of the housing (1) is fixedly connected to a hydraulic rod (11), and the output end of the hydraulic rod (11) is fixedly connected to the moving frame (9).

3. A coal mine crusher according to claim 1, characterized in that: The housing (1) is provided with a clearance groove (12) located below the limit groove (6) on the front side, a rotatable lifting rod (13) is provided in the clearance groove (12), and bevel gears (14) are provided on the front and rear sides of the lifting rod (13), respectively. The bevel gear (14) on the front side is fixedly connected to the lifting rod (13), and the bevel gear (14) on the rear side is rotatably connected to the lifting rod (13). A lifting rod (15) is rotatably connected to the middle part of the lifting rod (13), and a support plate (16) is fixedly connected to the upper end of the lifting rod (15). A bevel gear (17) is rotatably connected to the outer wall of the lifting rod (15), and the front and rear sides of the bevel gear (17) can respectively mesh with the bevel gear (14) on the corresponding side.

4. A coal mine crusher according to claim 1, characterized in that: The front end of the housing (1) is fixedly connected to a fixed rod located between the two movable grooves (2); the outer wall of the fixed rod is coaxially rotatably connected to a spur gear (18); the lower side of the hinged rod (7) and the upper end of the support plate (16) are respectively fixedly connected to racks (19); the two racks (19) are symmetrical and mesh with the spur gears (18); the right rack (19) is slidably connected to the front side of the housing (1).

5. A coal mine crusher according to claim 3, characterized in that: The opposite ends of the two helical gears (14) are respectively fixedly connected with pulleys (20), and the pulleys (20) are connected to the rotating shaft (3) via belts (21). The front pulley (20) is connected to the rotating shaft (3) on the left side via belts (21), and the rear pulley (20) is connected to the transmission shaft on the right side via belts (21).

6. A crusher for coal mine in tunnel according to claim 1, characterized in that: A rotating motor (22) coaxial with the lifting rod (13) is provided on the front side of the housing, and an output end of the rotating motor (22) is fixedly connected to the lifting rod (13).

7. A coal mine crusher according to claim 6, characterized in that: A bracket (23) is fixedly connected to the lower side of the outer shell (1), a conveyor belt is provided inside the bracket (23), a protective shell (24) is fixedly connected to the front end of the outer shell (1), and the rotating motor is located inside the protective shell and is slidably connected to the protective shell.

8. A coal mine crusher according to claim 1, characterized in that: A feeding hopper (25) is fixedly connected to the right side of the upper end of the shell (1), and a conical gathering hopper (26) is fixedly connected inside the shell (1), and the lower side of the gathering hopper (26) is located between the two crushing rollers (4).

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