A production-preserving device for a mine trough drive roller

Abstract

This utility model discloses a production-preserving device for a mine trough drive roller, including a drive roller, a support, bearings, top covers, auxiliary support rollers, and a lifting mechanism. A rotating shaft is fixed at the center of the drive roller, driven by a motor. The left and right ends of the shaft are rotatably connected to the support via bearings. Two top covers are detachably fixed to the top of the support by bolts, and these top covers are used to press the bearings. Two auxiliary support rollers are arranged below the drive roller. A lifting mechanism is installed inside the support to drive the auxiliary support rollers up and down, and the auxiliary support rollers are rotatably connected to the lifting mechanism. When a bearing on one side is damaged, this utility model can provide rotational support to the drive roller through the auxiliary support rollers, maintaining the normal operation of the drive roller, reducing downtime, and thus ensuring production needs.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace production conveying technology, and in particular to a production-preserving device for a ore bin drive drum. Background Technology

[0002] In blast furnace production, the charging system is a crucial auxiliary system, primarily supplying coke and ore to the blast furnace. A malfunction in this system directly impacts blast furnace operation. The main belt conveyor directly feeds the blast furnace, and its primary drive system powers the entire main drive drum. The drum is supported by bearings and shafts on both sides for rotation. If a bearing on one side fails, it can easily cause the drive drum to jam or detach. Replacing the bearing requires significant downtime, severely impacting production. Therefore, there is an urgent need to develop a ore bin drive drum maintenance device that, when a bearing on one side fails, provides rotational support to the drive drum via auxiliary support rollers, maintaining its normal operation, reducing downtime, and thus ensuring production needs are met. This device would overcome the shortcomings of current applications and meet current requirements. Utility Model Content

[0003] The purpose of this utility model is to provide a production-preserving device for a mine trough drive roller, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A production-preserving device for a mine trough drive roller includes a drive roller, a support, bearings, top covers, auxiliary support rollers, and a lifting mechanism. A rotating shaft is fixed at the center of the drive roller and is driven by a motor. The left and right ends of the rotating shaft are rotatably connected to the support via bearings. Two top covers are detachably fixed to the top of the support by bolts. The top covers are used to press the bearings. Two auxiliary support rollers are arranged below the drive roller. A lifting mechanism for moving the auxiliary support rollers up and down is installed inside the support. The auxiliary support rollers are rotatably connected to the lifting mechanism.

[0006] Preferably, the lifting mechanism includes a hydraulic cylinder, a lifting frame, and a limiting rod. The hydraulic cylinder is multiple and fixed inside the support. The telescopic end of the hydraulic cylinder is fixed to the lifting frame. The auxiliary support roller is rotatably connected inside the lifting frame. Limiting rods inserted into the support are fixed at the left and right ends of the lifting frame, respectively.

[0007] Preferably, the limiting rod slides in contact with the bracket, and the bracket is provided with a limiting groove for the up and down movement of the limiting rod.

[0008] Preferably, a hydraulic station is installed inside the bracket, which is used to supply hydraulic oil to the hydraulic cylinder to drive its operation.

[0009] The beneficial effects of this utility model are as follows: When the bearing is normal, the auxiliary support roller separates from the drive roller. When one side of the bearing is damaged, the motor is stopped. Then, the hydraulic cylinder drives the lifting frame and limit rod upwards. The lifting frame drives the auxiliary support roller upwards. When the limit rod moves to the top of the limit groove, the auxiliary support roller contacts the drive roller to provide support. Then, the top cover is removed, the damaged bearing is taken off, and the motor is restarted to drive the drive roller to rotate. At this time, one end of the rotating shaft is connected to a normal bearing, and the lower side of the drive roller is supported by two auxiliary support rollers, thus allowing the drive roller to maintain stable operation and reducing downtime. When a new bearing is purchased, it can be replaced during periods of non-production. In summary, when one side of the bearing is damaged, this utility model can provide rotational support for the drive roller through the auxiliary support roller, maintaining the normal operation of the drive roller, reducing downtime, and thus ensuring production needs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This utility model Figure 1 Sectional view along line AA.

[0012] Legend:

[0013] 1. Drive roller; 101. Rotary shaft; 2. Support; 201. Limiting groove; 3. Bearing bush; 4. Top cover; 5. Auxiliary support roller; 6. Lifting mechanism; 601. Hydraulic cylinder; 602. Lifting frame; 603. Limiting rod; 7. Hydraulic station. Detailed Implementation

[0014] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Specific implementation examples are given below.

[0016] See Figures 1-2In this embodiment of the utility model, a production-preserving device for a mine trough drive roller includes a drive roller 1, a support 2, bearings 3, a top cover 4, auxiliary support rollers 5, and a lifting mechanism 6. A rotating shaft 101 is fixed at the center of the drive roller 1. The rotating shaft 101 is driven by a motor. The drive roller 1 drives the conveyor belt. The left and right ends of the rotating shaft 101 are rotatably connected to the support 2 via bearings 3. Two top covers 4 are detachably fixed to the top of the support 2 by bolts. The top covers 4 are used to press the bearings 3. Two auxiliary support rollers 5 are arranged below the drive roller 1. A lifting mechanism 6 for moving the auxiliary support rollers 5 up and down is installed inside the support 2. The shaft is rotatably connected to the lifting mechanism 6. When the bearing 3 is normal, the auxiliary support roller 5 is separated from the drive roller 1. When the bearing 3 on one side is damaged, the motor is stopped. Then, the lifting mechanism 6 drives the auxiliary support roller 5 to move upward, so that the two auxiliary support rollers 5 support the drive roller 1 from the bottom. Then, the top cover 4 is removed, the damaged bearing 3 is taken off, and the motor is started again to drive the drive roller 1 to rotate. At this time, one end of the rotating shaft 101 is connected to the normal bearing 3, and the lower side of the drive roller 1 is supported by two auxiliary support rollers 5, so that the drive roller 1 can maintain stable operation and reduce downtime. When a new bearing 3 is purchased, it can be replaced during periods of non-production.

[0017] The lifting mechanism 6 includes a hydraulic cylinder 601, a lifting frame 602, and a limiting rod 603. Multiple hydraulic cylinders 601 are fixed within the bracket 2. The telescopic ends of the hydraulic cylinders 601 are fixed to the lifting frame 602. An auxiliary support roller 5 is rotatably connected within the lifting frame 602. Limiting rods 603, inserted into the bracket 2, are fixed to the left and right ends of the lifting frame 602, respectively. The limiting rods 603 slide in contact with the bracket 2. A limiting groove 201 for the vertical movement of the limiting rods 603 is provided within the bracket 2. In use, the hydraulic cylinders 601 drive the lifting frame 602 and the limiting rods 603 to move vertically, and the lifting frame 602 drives the auxiliary support roller 5 to move vertically. When the limiting rod 603 moves to the top of the limiting groove 201, the auxiliary support roller 5 contacts the drive roller 1, providing support. When the auxiliary support roller 5 is not needed, the hydraulic cylinders 601 drive the lifting frame 602 downwards, separating the auxiliary support roller 5 from the drive roller 1.

[0018] A hydraulic station 7 is installed inside the bracket 2. The hydraulic cylinder 601 is connected to the hydraulic station 7 through an oil pipe. The hydraulic station 7 is used to supply hydraulic oil to the hydraulic cylinder 601 to drive its operation.

[0019] Working principle: This ore bin drive roller production protection device works as follows: When the bearing 3 is normal, the auxiliary support roller 5 is separated from the drive roller 1. When one side of the bearing 3 is damaged, the motor is stopped. Then, the hydraulic cylinder 601 drives the lifting frame 602 and the limit rod 603 to move upward. The lifting frame 602 drives the auxiliary support roller 5 to move upward. When the limit rod 603 moves to the top of the limit slide 201, the auxiliary support roller 5 contacts the drive roller 1 to provide support. Then, the top cover 4 is removed, the damaged bearing 3 is taken off, and the motor is started again to drive the drive roller 1 to rotate. At this time, one end of the rotating shaft 101 is connected to the normal bearing 3, and the lower side of the drive roller 1 is supported by two auxiliary support rollers 5, so that the drive roller 1 can maintain stable operation and reduce downtime. When a new bearing 3 is purchased, it can be replaced during periods of non-production.

[0020] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A production-preserving device for a mine trough drive roller, characterized in that, The device includes a drive roller (1), a bracket (2), bearings (3), a top cover (4), auxiliary support rollers (5), and a lifting mechanism (6). A rotating shaft (101) is fixed at the center of the drive roller (1). The rotating shaft (101) is driven by a motor. The left and right ends of the rotating shaft (101) are rotatably connected to the bracket (2) through bearings (3). Two top covers (4) are detachably fixed to the top of the bracket (2) by bolts. The top covers (4) are used to press the bearings (3). Two auxiliary support rollers (5) are provided below the drive roller (1). A lifting mechanism (6) for driving the auxiliary support rollers (5) to move up and down is installed inside the bracket (2). The auxiliary support rollers (5) are rotatably connected to the lifting mechanism (6).

2. The ore bin drive roller production-preserving device according to claim 1, characterized in that, The lifting mechanism (6) includes: a hydraulic cylinder (601), a lifting frame (602), and a limiting rod (603). There are multiple hydraulic cylinders (601) and they are fixed inside the bracket (2). The telescopic end of the hydraulic cylinder (601) is fixed to the lifting frame (602). The auxiliary support roller (5) is rotatably connected inside the lifting frame (602). The left and right ends of the lifting frame (602) are respectively fixed with limiting rods (603) inserted into the bracket (2).

3. The ore bin drive roller production-preserving device according to claim 2, characterized in that, The limiting rod (603) slides in contact with the bracket (2), and the bracket (2) is provided with a limiting groove (201) for the limiting rod (603) to move up and down.

4. The ore bin drive roller production-preserving device according to claim 2, characterized in that, The support (2) is equipped with a hydraulic station (7), which is used to supply hydraulic oil to the hydraulic cylinder (601) to drive its operation.

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