Belt conveyor belt surface emergency stop protection device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA COAL XINJI ENERGY CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]带式输送机应用在矿产行业中十分常见，带式输送机在实际使用过程中，经常发生由于违章作业、操作失误等原因造成的人员跌落皮带机带面进而被拉入定量斗内的事故，使得带式输送机运行存在较大的风险隐患
[0011]本实用新型的有益效果为：本实用新型通过在定量斗入口前侧设置由固定支架和活动支架组成的支架结构，以及在支架结构下方设置了急停开关和急停拉线，且通过将支架结构长度设置成与皮带机带面宽度适配，使得急停拉线长度也与皮带机带面宽度适配，出现人员跌落皮带机情况时人员会直接碰触到急停拉线从而触发急停开关实现对皮带机紧急停机，同时急停拉线也能够在皮带机上坠入杂物时进行急停控制，避免人员或杂物跌落到定量斗中，提高了皮带机运行安全性；
Smart Images
Figure CN224603844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency stop protection technology for belt conveyors, and in particular to an emergency stop protection device for the belt surface of a belt conveyor. Background Technology
[0002] A belt conveyor is a continuous transport device that uses a ring conveyor belt to circulate between a drive drum and a driven drum, enabling efficient and long-distance transport of materials.
[0003] Belt conveyors are commonly used in the mining industry. However, accidents frequently occur during operation, such as personnel falling onto the conveyor belt and being pulled into the metering hopper due to violations of regulations or operational errors. This poses a significant risk to the operation of belt conveyors. Furthermore, sharp debris such as anchor cables and bolts not completely removed by the magnetic separator can pass through the belt surface into the metering hopper and be pulled into the ground production system, threatening the safe operation of various equipment within the system. Therefore, this invention proposes a belt conveyor belt surface emergency stop protection device to address the shortcomings of existing technologies. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this utility model is to provide an emergency stop protection device for a belt conveyor. This device consists of a support structure composed of a fixed bracket and a movable bracket installed in front of the metering hopper inlet. An emergency stop switch and an emergency stop cable are installed below the support structure. By adjusting the length of the support structure to match the width of the belt conveyor, the length of the emergency stop cable is also adapted to the width of the belt conveyor. In the event of a person falling onto the belt conveyor, the person will directly touch the emergency stop cable, triggering the emergency stop switch and stopping the belt conveyor immediately. Simultaneously, the emergency stop cable can also provide emergency stop control when debris falls onto the belt conveyor, preventing personnel or debris from falling into the metering hopper and improving the safety of belt conveyor operation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An emergency stop protection device for a belt conveyor includes a fixed bracket, a movable bracket, an emergency stop switch, and an emergency stop cable. The fixed bracket is installed in front of the inlet of the metering hopper and on an existing mounting foundation. The movable bracket is slidably mounted below the fixed bracket. The overall width of the fixed bracket and the movable bracket is adapted to the width of the belt conveyor. The fixed bracket is equipped with a lifting and adjusting mechanism connected to the movable bracket. An emergency stop switch is installed at the lower end of one side of the movable bracket, and a fixed column is installed at the lower end of the other side of the movable bracket. An emergency stop cable is provided on the contact of the emergency stop switch. One end of the emergency stop cable is connected and fixed to the fixed column, and a limit sleeve is provided on the fixed column.
[0006] A further improvement is that the fixed bracket includes a first hollow round rod and a crossbeam rod. Two sets of the first hollow round rods are symmetrically arranged, and a crossbeam rod connects the two sets of the first hollow round rods.
[0007] A further improvement is that the movable support includes a second hollow round rod and a pull rod. The first hollow round rod is provided in two sets. The two sets of the second hollow round rods are slidably connected to the interior of the two sets of the first hollow round rods respectively, and a pull rod is connected between the two sets of the second hollow round rods.
[0008] A further improvement is that the lifting and adjusting mechanism includes a screw, an internal threaded sleeve, and a knob. The screw is rotatably mounted on the crossbeam rod, the upper end of the screw is provided with a knob, and the lower end of the screw is threadedly connected to the internal threaded sleeve, the lower end of the internal threaded sleeve being connected to the top of the pull rod.
[0009] A further improvement is that a first clamp is fixedly provided on the back of the emergency stop switch, and a second clamp is provided on the lower outer wall of one side of the movable bracket, and the first clamp and the second clamp are connected by bolts.
[0010] A further improvement is that the lower end of the fixing post has an external thread structure, and the top of the limiting sleeve has an internal thread hole that is compatible with the fixing post.
[0011] The beneficial effects of this utility model are as follows: This utility model provides a support structure consisting of a fixed support and a movable support on the front side of the metering hopper inlet, and provides an emergency stop switch and an emergency stop cable below the support structure. By setting the length of the support structure to match the width of the belt conveyor, the length of the emergency stop cable is also matched to the width of the belt conveyor. In the event of a person falling into the belt conveyor, the person will directly touch the emergency stop cable, thereby triggering the emergency stop switch to stop the belt conveyor in an emergency. At the same time, the emergency stop cable can also provide emergency stop control when debris falls into the belt conveyor, preventing people or debris from falling into the metering hopper and improving the safety of belt conveyor operation. This invention features a lifting and adjusting mechanism connected to a movable bracket on a fixed bracket, allowing the height of the emergency stop cable mounted on the movable bracket to be adjusted. This enables the control of the height difference between the emergency stop cable and the belt surface of the conveyor as needed, resulting in high flexibility in use. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the assembly state of the present utility model. Figure 2 This is a three-dimensional schematic diagram of the fixed bracket structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the movable support frame of this utility model; Figure 4 This is a three-dimensional structural schematic diagram of the present utility model; Figure 5 This is a three-dimensional schematic diagram of the installation structure of the emergency stop switch of this utility model; Figure 6 This is a schematic diagram showing the assembly and disassembly of the limiting sleeve and fixing column of this utility model.
[0013] The components include: 1. Fixed bracket; 101. First hollow round rod; 102. Crossbeam rod; 2. Movable bracket; 201. Second hollow round rod; 202. Pull rod; 3. Emergency stop switch; 4. Emergency stop cable; 5. Belt conveyor; 6. Fixed column; 7. Limit sleeve; 8. Screw; 9. Internal threaded sleeve; 10. Knob; 11. First clamp; 12. Second clamp; 13. Metering hopper. Detailed Implementation
[0014] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.
[0015] according to Figure 1-6 As shown in the figure, this embodiment proposes an emergency stop protection device for the belt surface of a conveyor belt, including a fixed bracket 1, a movable bracket 2, an emergency stop switch 3, and an emergency stop pull line 4. The fixed bracket 1 is set on the front side of the inlet of the metering hopper 13 and installed on the existing installation foundation. The movable bracket 2 is slidably provided below the fixed bracket 1. The overall width of the fixed bracket 1 and the movable bracket 2 is adapted to the width of the belt surface of the conveyor belt 5. The fixed bracket 1 is provided with a lifting adjustment mechanism, which is connected to the movable bracket 2. An emergency stop switch 3 is installed at the lower end of one side of the movable bracket 2, and a fixed column 6 is installed at the lower end of the other side of the movable bracket 2. An emergency stop pull line 4 is provided on the contact of the emergency stop switch 3. One end of the emergency stop pull line 4 is connected and fixed to the fixed column 6. A limit sleeve 7 is provided on the fixed column 6.
[0016] When installing and using the emergency stop protection device for the belt conveyor of this utility model, the support structure consisting of the fixed bracket 1 and the movable bracket 2 is assembled at the front side of the inlet of the metering hopper 13, ensuring that the bottom of the support structure is at a certain distance from the upper belt surface of the belt conveyor 5. A fixed support is provided on the fixed bracket 1, which allows the support structure to be fixed to the existing mounting base above. Then, the emergency stop switch 3 is installed on the lower side of one side of the movable bracket 2, and the emergency stop pull wire 4 is connected to the contact of the emergency stop switch 3. The other end of the emergency stop pull wire 4 is then wound into a fixed loop, which is then fitted onto the fixed post 6 and locked in place with a limiting sleeve 7. When personnel / debris fall onto the belt conveyor 5, they will touch the emergency stop pull wire 4, triggering the emergency stop switch 3. The emergency stop switch 3 then controls the belt conveyor 5 to stop urgently, thereby preventing personnel / debris from falling into the inlet of the metering hopper 13.
[0017] The fixed support 1 includes a first hollow round rod 101 and a crossbeam 102. Two sets of the first hollow round rods 101 are symmetrically arranged, and the crossbeam 102 connects the two sets of the first hollow round rods 101. The movable support 2 includes a second hollow round rod 201 and a pull rod 202. Two sets of the first hollow round rods 101 are arranged, and the two sets of the second hollow round rods 201 are slidably connected to the interior of the two sets of the first hollow round rods 101, and the pull rod 202 connects the two sets of the second hollow round rods 201. The "H"-shaped fixed support 1 and movable support 2 have high structural stability.
[0018] The lifting and adjusting mechanism includes a screw 8, an internally threaded sleeve 9, and a knob 10. The screw 8 is rotatably mounted on the crossbeam 102. The upper end of the screw 8 is provided with a knob 10, and the lower end of the screw 8 is threadedly connected to the internally threaded sleeve 9. The lower end of the internally threaded sleeve 9 is connected to the top of the pull rod 202. The movable bracket 2 of this utility model can be adjusted in position on the fixed bracket 1. Specifically, by rotating the knob 10, the screw 8 is driven to rotate, and then the internally threaded sleeve 9 rises and falls on the screw 8. The guidance of the internally threaded sleeve 9 during the rising and falling process is achieved by the sliding between the second hollow round rod 201 and the first hollow round rod 101, so that the internally threaded sleeve 9 can only rise and fall on the screw 8 and cannot rotate.
[0019] The emergency stop switch 3 is fixedly provided with a first clamp 11 on its back, and a second clamp 12 is provided on the lower outer wall of one side of the movable bracket 2. The first clamp 11 and the second clamp 12 are connected by bolts. The emergency stop switch 3 of this utility model can be disassembled from the movable bracket 2, which is highly convenient.
[0020] The lower end of the fixing post 6 has an external thread structure, and the top of the limiting sleeve 7 is provided with an internal thread hole that is adapted to the fixing post 6.
[0021] This invention features a support structure consisting of a fixed bracket 1 and a movable bracket 2, installed at the front of the inlet of the metering hopper 13. An emergency stop switch 3 and an emergency stop cable 4 are located below the support structure. The length of the support structure is adapted to the width of the conveyor belt 5, ensuring that the length of the emergency stop cable 4 also matches the width of the conveyor belt 5. In the event of a person falling onto the conveyor belt 5, the person will directly touch the emergency stop cable 4, triggering the emergency stop switch 3 to stop the conveyor belt 5. Simultaneously, the emergency stop cable 4 can also provide emergency stop control when debris falls onto the conveyor belt 5, preventing personnel or debris from falling into the metering hopper 13 and improving the operational safety of the conveyor belt 5. Furthermore, the fixed bracket 1 is connected to the movable bracket 2 via a lifting adjustment mechanism, allowing the height of the emergency stop cable 4 mounted on the movable bracket 2 to be adjustable. This enables control over the height difference between the emergency stop cable 4 and the conveyor belt 5 as needed, providing high flexibility.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A belt conveyor belt surface emergency stop protection device, characterized in that: The device includes a fixed bracket (1), a movable bracket (2), an emergency stop switch (3), and an emergency stop cable (4). The fixed bracket (1) is installed in front of the inlet of the metering hopper (13) and is installed on the existing installation foundation. The movable bracket (2) is slidably provided below the fixed bracket (1). The overall width of the fixed bracket (1) and the movable bracket (2) is adapted to the width of the belt surface of the belt conveyor (5). The fixed bracket (1) is provided with a lifting adjustment mechanism, which is connected to the movable bracket (2). An emergency stop switch (3) is installed at the lower end of one side of the movable bracket (2), and a fixed column (6) is installed at the lower end of the other side of the movable bracket (2). An emergency stop cable (4) is provided on the contact of the emergency stop switch (3). One end of the emergency stop cable (4) is connected and fixed to the fixed column (6). A limit sleeve (7) is provided on the fixed column (6).
2. The belt conveyor emergency stop protection device according to claim 1, characterized in that: The fixed bracket (1) includes a first hollow round rod (101) and a crossbeam rod (102). The first hollow round rod (101) is symmetrically arranged in two sets, and the crossbeam rod (102) is connected between the two sets of the first hollow round rod (101).
3. The belt conveyor emergency stop protection device according to claim 2, characterized in that: The movable support (2) includes a second hollow round rod (201) and a pull rod (202). The first hollow round rod (101) is provided in two sets. The two sets of the second hollow round rod (201) are slidably connected to the interior of the two sets of the first hollow round rod (101) respectively, and the pull rod (202) is connected between the two sets of the second hollow round rod (201).
4. The belt conveyor emergency stop protection device according to claim 3, characterized in that: The lifting adjustment mechanism includes a screw (8), an internal threaded sleeve (9), and a knob (10). The screw (8) is rotatably mounted on the crossbeam (102). The upper end of the screw (8) is provided with a knob (10). The lower end of the screw (8) is threadedly connected to the internal threaded sleeve (9). The lower end of the internal threaded sleeve (9) is connected to the top of the pull rod (202).
5. The belt conveyor emergency stop protection device according to claim 1, characterized in that: The emergency stop switch (3) is fixedly provided with a first clamp (11) on the back, and a second clamp (12) is provided on the lower outer wall of one side of the movable bracket (2). The first clamp (11) and the second clamp (12) are connected by bolts.
6. The belt conveyor emergency stop protection device according to claim 1, characterized in that: The lower end of the fixed post (6) has an external thread structure, and the top of the limiting sleeve (7) is provided with an internal thread hole that is compatible with the fixed post (6).