Carrier roller energy recovery mechanism of coal mine belt conveyor

By integrating an energy recovery mechanism into the idler rollers of a coal mine belt conveyor, mechanical energy is converted into electrical energy and stored in a battery, solving the problem of energy waste in underground mines and achieving efficient energy utilization and cost reduction.

CN223962752UActive Publication Date: 2026-03-03XIAN UNIV OF SCI & TECH +1
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Patent Information

Application Number
CN202520756854.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-03
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

Existing coal mine belt conveyors do not perform energy recovery underground, leading to increased energy consumption and higher production costs.

Method used

Design an energy recovery mechanism for idler rollers of a coal mine belt conveyor. The rotational motion of the idler rollers drives a micro generator to convert mechanical energy into electrical energy and store it in a battery for use in monitoring equipment and lighting systems in the roadway.

Benefits of technology

It achieves efficient use of energy, reduces energy consumption, reduces production costs, and facilitates the maintenance and replacement of idler rollers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of coal mine belt conveyors, and discloses a coal mine belt conveyor carrier roller energy recovery mechanism which comprises a base and a supporting plate, the top of the supporting plate is fixedly connected with a fixing seat, the inner wall of the fixing seat is rotatably connected with a rotating rod, the top of the supporting plate is provided with a carrier roller, and the rotating rod is connected with a rotating shaft. A fixing assembly is arranged at the top of the supporting plate, a recycling assembly is arranged at the bottom of the supporting plate and comprises a storage battery shell, a micro generator, a transmission shaft and a chain wheel, and the storage battery shell is arranged at the bottom of the supporting plate. According to the utility model, the belt conveyor runs to drive the carrier rollers to move, mechanical energy is converted into electric energy through the recovery assembly, the generated electric energy is transmitted to the storage battery in the storage battery shell through the wire to be stored, and the stored electric energy can be used for driving monitoring equipment, a communication module or a lighting system in a roadway. Therefore, effective utilization and saving of energy are realized.
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Description

Technical Field

[0001] This utility model relates to the field of coal mine belt conveyors, and in particular to an energy recovery mechanism for idler rollers of coal mine belt conveyors. Background Technology

[0002] A belt conveyor for coal mines is a type of conveyor that uses a motor-driven belt to transport raw coal from the underground mining face to the mine surface. Due to the long transportation distance and the undulating roadway floor, idlers need to be installed at certain intervals under the belt of the conveyor to support the weight of the belt and the raw coal on it. At the same time, the idlers are designed to roll to reduce the friction between the back of the belt and the idlers.

[0003] However, due to the undulating floor and long distance of underground transport roadways, dedicated power supply routes and lighting equipment are required for worker safety, lighting maintenance and inspection, and video monitoring of coal flow. Typical coal mine underground transport roadways range from several kilometers to tens of kilometers in length, placing high demands on electrical wiring and power consumption. This results in significant energy waste and increases the cost of coal mining. Existing underground mining conveyors do not utilize energy recovery, leading to problems related to worker safety, lighting maintenance and inspection, and video monitoring of coal flow during underground transport, increasing additional energy consumption and production costs. Therefore, this paper proposes an energy recovery mechanism for coal mine belt conveyor rollers to address these issues. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an energy recovery mechanism for idler rollers of coal mine belt conveyors, which aims to solve the problem in the prior art that "underground mining conveyors do not perform energy recovery and utilization, which increases additional energy consumption and production costs".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an energy recovery mechanism for a coal mine belt conveyor idler roller, comprising a base and a support plate. A fixed seat is fixedly connected to the top of the support plate, and a rotating rod is rotatably connected to the inner wall of the fixed seat. An idler roller is provided on the top of the support plate, and a fixed assembly is provided on the top of the support plate. A recovery assembly is provided at the bottom of the support plate. The recovery assembly includes a battery casing, a micro generator, a drive shaft, and sprockets. The battery casing is located at the bottom of the support plate. The micro generator is fixedly connected to the surface of the base. The left and right ends of the drive shaft are fixedly connected to the output shaft of the micro generator. The number of sprockets is set to two sets, one set of sprockets is fixedly connected to the surface of the drive shaft, and the other set of sprockets is fixedly connected to the surface of the rotating rod. The two sets of sprockets are connected by a chain drive.

[0006] As a further description of the above technical solution:

[0007] The number of bases is set to two sets, and the two sets of bases are fixedly connected to the left and right sides of the support plate on the side that is close to each other.

[0008] As a further description of the above technical solution:

[0009] The fixing component includes a mounting groove disposed on the surface of the rotating rod.

[0010] As a further description of the above technical solution:

[0011] The fixing assembly also includes a rotating shaft, the outer wall of which is fixedly connected to the inner wall of the idler roller, and the left and right ends of the rotating shaft are installed inside the mounting groove.

[0012] As a further description of the above technical solution:

[0013] The rotating shaft is fixedly connected to the rotating rod by fixing bolts.

[0014] As a further description of the above technical solution:

[0015] The number of rotating rods is set to multiple, and a bevel gear one is fixedly connected to one side of the rotating rod, and a bevel gear two is fixedly connected to the other side of the rotating rod. The bevel gear one and the bevel gear two mesh.

[0016] As a further description of the above technical solution:

[0017] A bottom support roller is fixedly connected to the surface of the drive shaft.

[0018] As a further description of the above technical solution:

[0019] The surface of the base is fixedly connected to the bottom of the support plate by a reinforcing support column, and a mining lighting lamp is fixedly connected to the surface of the base.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the operation of the belt conveyor drives the movement of the idler rollers, and the mechanical energy is converted into electrical energy through the recovery component. The generated electrical energy is transmitted through wires to the battery inside the battery casing for storage. The stored electrical energy can be used to drive monitoring equipment, communication modules or lighting systems in the roadway, thereby achieving effective utilization and saving of energy.

[0022] 2. In this utility model, the idler roller and its related shaft can be disassembled by loosening the fixing bolts, which facilitates the inspection and replacement of worn idler roller parts. The tension of the chain can be adjusted as needed, making it convenient to replace damaged parts. At the same time, individual idler rollers can be replaced individually, making the operation more convenient and reducing the difficulty of maintenance work. Attached Figure Description

[0023] Figure 1 This is a top view of the overall three-dimensional structure of this utility model;

[0024] Figure 2 This is a bottom view of the overall three-dimensional structure of this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the idler roller and the recycling assembly in this utility model;

[0026] Figure 4 This is a three-dimensional exploded view of the idler roller and fixing assembly in this utility model.

[0027] Legend:

[0028] 1. Base; 11. Support plate; 2. Fixed seat; 3. Idler roller; 4. Fixing assembly; 401. Rotating rod; 402. Mounting slot; 403. Rotating shaft; 404. Fixing bolt; 405. Bevel gear one; 406. Bevel gear two; 9. Recycling assembly; 903. Battery casing; 904. Micro generator; 905. Drive shaft; 906. Sprocket; 907. Chain; 18. Bottom support roller; 19. Reinforced support column; 20. Mining lighting lamp. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 , Figure 2This utility model provides an embodiment of an energy recovery mechanism for a coal mine belt conveyor idler roller, comprising a base 1 and a support plate 11. Two sets of bases 1 are provided, with one side of each set of bases 1 close to the other fixedly connected to the left and right sides of the support plate 11. The surface of the base 1 is fixedly connected to the bottom of the support plate 11 via reinforcing support columns 19. The base 1 and support plate 11 form an H-shaped support structure, which improves the overall strength and stability of the structure and enhances its ability to withstand the dynamic load of the idler roller 3. A fixed seat 2 is fixedly connected to the top of the support plate 11, and a rotating rod 401 is rotatably connected to the inner wall of the fixed seat 2. An idler roller 3 is mounted on the top of the support plate 11. The conveyor belt drives the idler roller 3 to rotate, and the movement of the idler roller 3 generates electricity through a recovery component 9. A mine lighting lamp 20 is fixedly connected to the surface of the base 1, and the recovered electrical energy can be used to power the mine lighting lamp 20. A fixed component 4 is mounted on the top of the support plate 11, and a recovery component 9 is mounted on the bottom of the support plate 11.

[0031] Reference Figure 1 - Figure 3 The recycling component 9 includes a battery casing 903, a micro generator 904, a drive shaft 905, and sprockets 906. The battery casing 903 is located at the bottom of the support plate 11 and contains a battery pack for storing electrical energy and supporting use during power outages. The micro generator 904 is fixedly connected to the surface of the base 1 and converts mechanical energy into electrical energy. The current generated by the generator is stored in the battery pack, which is existing technology. The left and right ends of the drive shaft 905 are fixedly connected to the output shaft of the micro generator 904. Bottom support rollers 18 are fixedly connected to the surface of the drive shaft 905 to support the conveyor belt and prevent direct collision between the conveyor belt and the drive shaft 905. The number of sprockets 906 is set to two sets. One set of sprockets 906 is fixedly connected to the surface of the drive shaft 905, and the other set of sprockets 906 is fixedly connected to the surface of the rotating rod 401. The two sets of sprockets 906 are connected by a chain 907.

[0032] Reference Figure 2 - Figure 4The fixing component 4 includes a mounting groove 402 that cooperates with the rotating rod 401. The mounting groove 402 is set on the surface of the rotating rod 401. The fixing component 4 also includes a rotating shaft 403. The outer wall of the rotating shaft 403 is fixedly connected to the inner wall of the roller 3. The left and right ends of the rotating shaft 403 are installed inside the mounting groove 402. The rotating shaft 403 is fixedly connected to the rotating rod 401 by fixing bolts 404. The rotating shaft 403 can be removed from the inside of the mounting groove 402 by turning the fixing bolts 404, so as to facilitate the replacement of the roller 3 on the surface of the rotating shaft 403. The number of rotating rods 401 is set to multiple. One side of the rotating rod 401 is fixedly connected to a bevel gear 405, and the other side of the rotating rod 401 is fixedly connected to a bevel gear 406. The bevel gear 405 and the bevel gear 406 mesh. The rotation of the rotating rod 401 will be transmitted to the adjacent rotating rod 401 through the bevel gears, so that all the rotating rods 401 rotate together.

[0033] Working principle: When the belt conveyor starts working, the idler roller 3 rotates with the movement of the conveyor belt. The idler roller 3 is connected to the rotating rod 401 in the fixed assembly 4 through the rotating shaft 403. The rotating shaft 403 is installed in the mounting groove 402 on the surface of the rotating rod 401 and is firmly connected by the fixing bolt 404. The rotation of the idler roller 3 drives the rotating shaft 403 and the rotating rod 401 to rotate synchronously. Since each rotating rod 401 has a bevel gear 405 fixed on one side and a bevel gear 406 fixed on the other side, and the bevel gear 405 and the bevel gear 406 mesh with each other, the rotation of the rotating rod 401 will be transmitted to the adjacent rotating rod 401 through the bevel gears, so that all the rotating rods 401 rotate together.

[0034] The rotation of the rotating rod 401 transmits kinetic energy to the drive shaft 905 via the chain 907. The left and right ends of the drive shaft 905 are fixedly connected to the output shaft of the micro generator 904. When the drive shaft 905 is driven to rotate by the sprocket 906, the micro generator 904 starts to generate electricity. The bottom support roller 18 is fixed on the drive shaft 905, so that the bottom conveyor belt is supported. The electrical energy generated by the micro generator 904 is transmitted through wires to the battery inside the battery casing 903 for storage. The stored electrical energy can be used to drive the monitoring equipment, communication modules or lighting systems in the tunnel, thereby realizing the effective utilization and saving of energy.

[0035] When it is necessary to replace the idler roller 3 during routine maintenance, the idler roller 3 and its related shaft 403 can be disassembled by loosening the fixing bolt 404, which facilitates the inspection and replacement of worn parts. The tension of the chain 907 can be adjusted as needed to ensure the normal operation of the chain drive system and extend its service life.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal mine belt conveyor idler energy recovery mechanism, comprising a base (1) and a support plate (11), characterized in that: The top of the supporting plate (11) is fixedly connected with a fixing seat (2), the inner wall of the fixing seat (2) is rotatably connected with a rotating rod (401), the top of the supporting plate (11) is provided with a supporting roller (3), the top of the supporting plate (11) is provided with a fixing assembly (4), and the bottom of the supporting plate (11) is provided with a recycling assembly (9). The recycling assembly (9) comprises a battery shell (903), a micro generator (904), a transmission shaft (905) and a chain wheel (906), the battery shell (903) is arranged at the bottom of the supporting plate (11), the micro generator (904) is fixedly connected to the surface of the base (1), the left and right ends of the transmission shaft (905) are fixedly connected with the output shaft of the micro generator (904), and the number of the chain wheels (906) is two groups, one group of the chain wheels (906) is fixedly connected to the surface of the transmission shaft (905), the other group of the chain wheels (906) is fixedly connected to the surface of the rotating rod (401), and the two groups of chain wheels (906) are drivingly connected through a chain (907).

2. The coal mine belt conveyor idler energy recovery mechanism according to claim 1, characterized in that: The number of the base (1) is two groups, and the side close to each other of the two groups of bases (1) is fixedly connected with the left and right sides of the supporting plate (11).

3. The coal mine belt conveyor idler energy recovery mechanism according to claim 1, characterized in that: The fixing assembly (4) comprises a mounting groove (402), and the mounting groove (402) is arranged on the surface of the rotating rod (401).

4. The coal mine belt conveyor idler energy recovery mechanism according to claim 3, characterized in that: The fixing assembly (4) further comprises a rotating shaft (403), the outer wall of the rotating shaft (403) is fixedly connected with the inner wall of the supporting roller (3), and the left and right ends of the rotating shaft (403) are mounted in the mounting groove (402).

5. The coal mine belt conveyor idler energy recovery mechanism according to claim 4, characterized in that: The rotating shaft (403) is fixedly connected with the rotating rod (401) through a fixing bolt (404).

6. The coal mine belt conveyor idler energy recovery mechanism according to claim 1, characterized in that: The number of the rotating rod (401) is multiple, one side of the rotating rod (401) is fixedly connected with a bevel gear one (405), the other side of the rotating rod (401) is fixedly connected with a bevel gear two (406), and the bevel gear one (405) and the bevel gear two (406) are engaged.

7. The coal mine belt conveyor idler energy recovery mechanism according to claim 1, characterized in that: The surface of the transmission shaft (905) is fixedly connected with a bottom supporting roller (18).

8. The coal mine belt conveyor idler energy recovery mechanism according to claim 1, characterized in that: The surface of the base (1) is fixedly connected with the bottom of the supporting plate (11) through a reinforcing support column (19), and the surface of the base (1) is fixedly connected with a mine illuminating lamp (20).