Locking device for tail protective cover of belt conveyor for coal mine

Abstract

The utility model discloses a coal mine belt conveyor tail protective cover locking device, and relates to the technical field of conveyors, the coal mine belt conveyor tail protective cover locking device comprises a conveying assembly and a protective assembly mounted on the conveying assembly, the protective assembly comprises a mounting frame, and the outer wall of the mounting frame is fixedly connected with a protective net; and the outer wall of one side of the mounting frame is fixedly connected with two symmetrically-arranged mounting bases, the outer walls of one sides of the two mounting bases are each provided with a rectangular groove, the conveying assembly comprises a conveying frame, the outer walls of the two sides of the conveying frame are each fixedly connected with a connecting box, and the two connecting boxes are each provided with a locking assembly. The mounting base is arranged on the protection frame, the locking assembly is arranged on the conveying frame and matched with the connecting box, the mounting frame can be conveniently fixed to the conveying frame, meanwhile, the contact switch is arranged on the conveying frame, when the mounting frame is away from the contact switch, the conveying belt on the conveying frame stops conveying, and the conveying belt is not prone to falling off. And therefore, safety accidents caused by movement of the mounting rack are effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of conveyors, and in particular to a locking device for a tail guard cover of a belt conveyor for a coal mine. Background Art

[0002] As the main transportation equipment in coal mines, belt conveyors are developing rapidly with the continuous advancement of science and technology. With the update and iteration of belt conveyors, how to ensure the safety of belt conveyors during efficient operation becomes particularly important. The safety hazards of rotating parts have always been the biggest threat to belt conveyors. In order to effectively eliminate the dangers brought by rotating parts, protective covers are processed and installed on the tail of belt conveyors.

[0003] However, the existing protective cover is easily moved by workers during actual work. When the tail of the conveyor belt loses the protection of the protective cover, the conveyor belt is still working, which can easily cause safety accidents. Utility Model Content

[0004] In order to improve the problem that the existing protective cover is easily moved when the conveyor belt is working, the present application provides a locking device for the tail protective cover of a belt conveyor for coal mines.

[0005] The present application provides a locking device for a tail guard cover of a belt conveyor for a coal mine, comprising a conveying assembly and a protective assembly installed on the conveying assembly, the protective assembly comprising a mounting frame, and an outer wall of the mounting frame is fixedly connected to a protective net, one side outer wall of the mounting frame is fixedly connected to two symmetrically arranged mounting seats, and one side outer wall of the two mounting seats is provided with a rectangular groove, the conveying assembly comprises a conveying frame, and both side outer walls of the conveying frame are fixedly connected to a connecting box, and locking assemblies are installed on the two connecting boxes, and two symmetrically arranged contact switches are fixedly connected to the top outer wall of the conveying frame, and the contact switches are in contact with the mounting frame.

[0006] By adopting the above structure, the setting of the conveying component facilitates the transportation of coal, the setting of the protective component facilitates the protection of the conveyor belt tail to avoid safety accidents, the setting of the mounting frame facilitates the installation of the protective net, the setting of the two mounting seats facilitates the installation of the mounting frame on the conveying component, the cooperation between the locking component on the conveying frame and the mounting seat facilitates the fixing of the mounting frame on the conveying frame, and the setting of the contact switch facilitates the conveyor belt on the conveying frame to stop conveying immediately when the mounting frame leaves the conveying frame.

[0007] A rectangular opening is provided on one outer wall of the connection box, and the specifications of the rectangular opening match those of the mounting seat.

[0008] By adopting the above structure, the mounting seat can be conveniently passed through the rectangular opening on the connection box.

[0009] One side outer wall of the mounting frame is fixedly connected with two symmetrically arranged prisms, and one side outer wall of the two connection boxes is provided with two rib grooves, and the specifications of the rib grooves match those of the prisms.

[0010] By adopting the above structure, the prism on the mounting frame cooperates with the rib groove on the connection box, which facilitates the rapid positioning of the mounting frame, thereby facilitating the rapid installation of the auxiliary mounting frame.

[0011] The locking assembly comprises a locking box fixedly connected to the inner wall of the connection box, and a strip opening is opened on one outer wall of the locking box, and the inner wall of the strip opening is slidably connected to two symmetrically arranged L-shaped seats.

[0012] By adopting the above structure, the locking box is provided to facilitate installation of the locking assembly on the connection box, and the two adjustable L-shaped seats on the locking box facilitate auxiliary installation of the mounting seat.

[0013] The specifications of the L-shaped seat match those of the limit opening. The inner walls on both sides of the locking box are rotatably connected to the same bidirectional screw, and the two L-shaped seats are both screwed onto the outer walls of the bidirectional screw.

[0014] By adopting the above structure, the two L-shaped seats are directly driven to move toward or away from each other when the bidirectional screw rotates.

[0015] A worm wheel is fixedly connected to the midpoint of the bidirectional screw, and a worm that meshes with the worm wheel is rotatably connected to the inner wall of one side of the locking box.

[0016] By adopting the above structure, the rotation of the worm directly drives the rotation of the worm wheel, and the rotation of the worm wheel directly drives the rotation of the bidirectional screw.

[0017] The inner wall of the locking box is fixedly connected with a servo motor, and the output shaft of the servo motor is fixedly connected to the worm.

[0018] By adopting the above structure, the servo motor is started to directly drive the worm to rotate, and when the worm rotates, the worm wheel is directly driven to drive the bidirectional screw to rotate.

[0019] One end of the conveying frame is rotatably connected to a conveying roller, and the conveying roller is located inside the mounting frame.

[0020] By adopting the above structure, the conveyor belt can be easily installed through the conveyor rollers on the conveyor frame.

[0021] In summary, the beneficial effects of this application are as follows:

[0022] 1. This application provides a mounting base on the protective frame, and provides cooperation between a locking assembly and a connection box on the conveying frame, so as to facilitate fixing the mounting frame on the conveying frame. At the same time, a contact switch is provided on the conveying frame. When the mounting frame is away from the contact switch, the conveyor belt on the conveying frame stops conveying, thereby effectively avoiding safety accidents caused by the movement of the mounting frame.

[0023] 2. This application sets a locking assembly on the conveyor frame. The two adjustable L-shaped seats in the locking assembly can conveniently cooperate with the rectangular groove and limit opening on the mounting seat to lock the mounting frame on the conveyor frame, thereby preventing the protective cover formed by the mounting frame and the protective net from being moved without permission. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the entire application;

[0025] Figure 2 It is a schematic diagram of the protection components of this application;

[0026] Figure 3 It is a schematic diagram of the conveying component of this application;

[0027] Figure 4 This is a schematic diagram of the connection box of this application;

[0028] Figure 5 It is a schematic diagram of the locking assembly of this application.

[0029] Explanation of the accompanying drawings: 1. Conveying assembly; 2. Protection assembly; 3. Mounting frame; 4. Protection net; 5. Mounting seat; 6. Rectangular groove; 7. Limit opening; 8. Prism; 9. Conveying frame; 10. Conveying roller; 11. Contact switch; 12. Connecting box; 13. Prism groove; 14. Locking assembly; 15. Rectangular opening; 16. Locking box; 17. L-shaped seat; 18. Bidirectional screw; 19. Worm gear; 20. Worm; 21. Servo motor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] See also Figure 1-3, a locking device for the tail guard cover of a belt conveyor for a coal mine. The belt conveyor is the main transportation equipment in the coal mine. Ensuring the safety of the belt conveyor during efficient operation is an important indicator of the belt conveyor. It includes a conveying component 1 and a protective component 2 installed on the conveying component 1. The setting of the conveying component 1 is convenient for conveying coal. The protective component 2 includes a mounting frame 3, and the outer wall of the mounting frame 3 is fixedly connected to a protective net 4. The setting of the mounting frame 3 is convenient for installing the protective net 4. The mounting frame 3 and the protective net 4 are combined to form a protective cover. The protective cover is convenient for protecting the tail of the conveyor belt. The outer wall of one side of the mounting frame 3 is fixedly connected to two symmetrically arranged mounting Seat 5, a rectangular groove 6 is provided on the outer wall of one side of the two mounting seats 5, the mounting seat 5 and the rectangular groove 6 thereon facilitate the installation of the mounting frame 3 on the conveying assembly 1, the conveying assembly 1 includes a conveying frame 9, the setting of the conveying frame 9 facilitates the installation of the conveyor belt, and the outer walls on both sides of the conveying frame 9 are fixedly connected to the connecting box 12, and the two connecting boxes 12 are installed with a locking assembly 14. The setting of the locking assembly 14 facilitates the installation of the mounting seat 5 on the conveying frame 9, and the top outer wall of the conveying frame 9 is fixedly connected to two symmetrically arranged contact switches 11, and the contact switch 11 is in contact with the mounting frame 3. The contact switch 11 stops the rotation of the conveyor belt when the mounting frame 3 leaves the conveying frame 9.

[0032] During use, the setting of the conveying component 1 facilitates the transportation of coal, the setting of the protective component 2 facilitates the protection of the conveyor belt tail to avoid safety accidents, the setting of the mounting frame 3 facilitates the installation of the protective net 4, the setting of the two mounting seats 5 facilitates the installation of the mounting frame 3 on the conveying component 1, and the cooperation between the locking component 14 on the conveying frame 9 and the mounting seat 5 facilitates the fixing of the mounting frame 3 on the conveying frame 9. The setting of the contact switch 11 facilitates that when the mounting frame 3 leaves the conveying frame 9, the conveyor belt on the conveying frame 9 immediately stops conveying.

[0033] Reference Figure 3-4 A rectangular opening 15 is provided on one side outer wall of the connection box 12, and the specifications of the rectangular opening 15 match the specifications of the mounting seat 5. The setting of the rectangular opening 15 facilitates the insertion of the mounting seat 5 into the connection box 12, and the mounting seat 5 passes through the rectangular opening 15 on the connection box 12.

[0034] Reference Figure 2-4 Two symmetrically arranged prisms 8 are fixedly connected to the outer wall of one side of the mounting frame 3, and two rib grooves 13 are provided on the outer wall of one side of the two connection boxes 12. The prisms 8 are inserted into the rib grooves 13 to facilitate the positioning and installation of the auxiliary mounting frame 3, thereby improving the installation efficiency of the mounting frame 3. The specifications of the rib grooves 13 match the specifications of the prisms 8. Through the cooperation between the prisms 8 on the mounting frame 3 and the rib grooves 13 on the connection box 12, the mounting frame 3 is quickly positioned, thereby facilitating the rapid installation of the auxiliary mounting frame 3.

[0035] Reference Figure 4-5 The locking assembly 14 includes a locking box 16 fixedly connected to the inner wall of the connection box 12. The setting of the locking box 16 facilitates the installation of the locking assembly 14 on the connection box 12, and a strip opening is provided on the outer wall of one side of the locking box 16. The inner wall of the strip opening is slidably connected to two symmetrically arranged L-shaped seats 17. The setting of the strip opening facilitates the sliding installation of the L-shaped seat 17. The setting of the locking box 16 facilitates the installation of the locking assembly 14 on the connection box 12. The two adjustable L-shaped seats 17 on the locking box 16 facilitate the auxiliary installation of the mounting seat 5.

[0036] Reference Figure 5 The specifications of the L-shaped seat 17 match the specifications of the limit opening 7. When the L-shaped seat 17 is inserted into the limit opening 7, the mounting seat 5 can be fixed in the connection box 12. The inner walls on both sides of the locking box 16 are rotatably connected to the same bidirectional screw 18. The setting of the bidirectional screw 18 is convenient for driving the two L-shaped seats 17 to move toward or away from each other. The two L-shaped seats 17 are screwed on the outer wall of the bidirectional screw 18, and the two L-shaped seats 17 are directly driven to move toward or away from each other when the bidirectional screw 18 rotates.

[0037] Reference Figure 5 A worm gear 19 is fixedly connected to the midpoint of the bidirectional screw 18. The worm gear 19 is arranged at the midpoint of the bidirectional screw 18. The bidirectional screw 18 is directly driven to rotate by the rotation of the worm gear 19. A worm 20 that meshes with the worm gear 19 is rotatably connected to the inner wall of one side of the locking box 16. The arrangement of the worm 20 facilitates the driving of the worm gear 19 to drive the bidirectional screw 18 to rotate. The worm gear 19 is directly driven to rotate by the rotation of the worm 20. When the worm gear 19 rotates, the bidirectional screw 18 is directly driven to rotate.

[0038] Reference Figure 5 A servo motor 21 is fixedly connected to the inner wall of the locking box 16. The servo motor 21 is installed at the center line of the locking box 16, and the output shaft of the servo motor 21 is fixedly connected to the worm 20. When the servo motor 21 is started, the worm 20 is directly driven to rotate. When the servo motor 21 is started, the worm 20 is directly driven to rotate. When the worm 20 rotates, the worm wheel 19 is directly driven to drive the bidirectional screw 18 to rotate.

[0039] Reference Figure 1 One end of the conveying frame 9 is rotatably connected to a conveying roller 10, and the conveying roller 10 is located inside the mounting frame 3. A protective cover is formed by the combination of the mounting frame 3 and the protective net 4. The protective cover mainly protects the conveying roller 10 to prevent the exposed conveying roller 10 from leaking out and causing safety accidents. The conveyor belt is conveniently installed through the conveying roller 10 on the conveying frame 9.

[0040] The implementation principle of the present application is: when in use, when the belt conveyor is working normally, the protective cover formed by the combination of the mounting frame 3 and the protective net 4 can effectively protect the tail of the conveyor belt. When the mounting frame 3 needs to be moved to clean the conveyor belt, the conveyor belt is stopped first and then the two servo motors 21 are started. When the servo motor 21 is started, it directly drives the worm 20 to drive the worm wheel 19 to rotate. When the worm wheel 19 rotates, it directly drives the bidirectional screw 18 to rotate. When the bidirectional screw 18 rotates, it directly drives the two L-shaped seats 17 to move toward or away from each other. When the two L-shaped seats 17 move toward each other and are away from the two limit openings 7, the mounting seat 5 can be removed from the connecting box 12. If a staff member disassembles the protective cover privately, the conveyor belt will stop working immediately when the mounting frame 3 is away from the contact switch 11.

[0041] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A locking device for a tail guard cover of a belt conveyor for a coal mine, comprising a conveying assembly (1) and a guard assembly (2) mounted on the conveying assembly (1), characterized in that: The protection component (2) includes a mounting frame (3), and the outer wall of the mounting frame (3) is fixedly connected to a protection net (4), one side outer wall of the mounting frame (3) is fixedly connected to two symmetrically arranged mounting seats (5), and one side outer wall of the two mounting seats (5) is provided with a rectangular groove (6), the conveying component (1) includes a conveying frame (9), and both side outer walls of the conveying frame (9) are fixedly connected to a connection box (12), and the two connection boxes (12) are both installed with a locking component (14), and the top outer wall of the conveying frame (9) is fixedly connected to two symmetrically arranged contact switches (11), and the contact switches (11) are in contact with the mounting frame (3).

2. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 1, characterized in that: A rectangular opening (15) is provided on one side outer wall of the connection box (12), and the specifications of the rectangular opening (15) match those of the mounting seat (5).

3. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 2, characterized in that: Two symmetrically arranged prisms (8) are fixedly connected to one side outer wall of the mounting frame (3), and two rib grooves (13) are provided on one side outer wall of the two connection boxes (12), and the specifications of the rib grooves (13) match those of the prisms (8).

4. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 3, characterized in that: The locking assembly (14) includes a locking box (16) fixedly connected to the inner wall of the connection box (12), and a strip-shaped opening is opened on one outer wall of the locking box (16), and the inner wall of the strip-shaped opening is slidably connected to two symmetrically arranged L-shaped seats (17).

5. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 4, characterized in that: The specifications of the L-shaped seat (17) match those of the limit opening (7), and the inner walls on both sides of the locking box (16) are rotatably connected to the same bidirectional screw (18), and the two L-shaped seats (17) are both screwed to the outer walls of the bidirectional screw (18).

6. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 5, characterized in that: A worm wheel (19) is fixedly connected to the midpoint of the bidirectional screw (18), and a worm (20) meshing with the worm wheel (19) is rotatably connected to an inner wall of one side of the locking box (16).

7. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 6, characterized in that: A servo motor (21) is fixedly connected to the inner wall of the locking box (16), and an output shaft of the servo motor (21) is fixedly connected to the worm (20).

8. The locking device for the tail guard cover of a coal mine belt conveyor according to claim 7, characterized in that: One end of the conveying frame (9) is rotatably connected to a conveying roller (10), and the conveying roller (10) is located inside the mounting frame (3).

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