Quickly disassembled belt conveyor safety protection frame

Abstract

The application relates to a kind of quick dismountable belt conveyor safety protection frame in the bulk material conveying technical field of mine, port, electric power, metallurgy and the like, which comprises a protection frame, a protection plate that can be opened and closed on the protection frame, a locking mechanism and a fixing mechanism.The locking mechanism comprises an operating member, a transmission member and a locking assembly, the fixing mechanism comprises a plug-in rod and a plug-in slot, and the transmission member is in transmission connection with the locking assembly and the plug-in rod respectively, so as to switch the locking mechanism and the fixing mechanism between two linkage states.When the protection plate is unlocked, the locking assembly limits the rotation of the driving rod, and when the protection plate is locked, the locking assembly removes the limitation on the driving rod.The application realizes the mechanical linkage of the opening and closing of the protection plate and the locking of the driving rod, and solves the problem of maintenance safety hazard that the driving wheel may still rotate after the protection plate is opened.

Description

Technical Field

[0001] This application relates to the field of bulk material conveying technology in mining, ports, power, metallurgy and other fields, specifically a belt conveyor safety protection frame that can be quickly disassembled and assembled. Background Technology

[0002] Belt conveyors are widely used in bulk material conveying applications in mines, ports, power plants, and metallurgy. The drive wheel and drive rod connected to it are power transmission components that operate at high speeds and with significant torque. Therefore, safety guards are typically installed outside the drive wheel, and protective plates are used to shield the drive wheel, drive rod, and surrounding area to prevent personnel from accidentally touching rotating parts during operation.

[0003] The protective plates of existing safety guard frames are typically fixed to the guard frame using bolts, pins, or other connectors. When inspecting components such as drive wheels and drive rods, maintenance personnel must first remove the connectors or open the protective plate before accessing the internal components through maintenance openings on the guard frame. This type of protective structure is mainly used to prevent personnel from contacting rotating components when the protective plate is closed. However, the open state of the protective plate is independent of the operating state of the drive wheels; opening the protective plate does not simultaneously restrict the rotation of the drive rods and drive wheels.

[0004] Therefore, when the conveyor belt stops but the drive wheel continues to rotate due to inertia and the power is not fully released, or when the equipment is accidentally started, maintenance personnel may still come into contact with the drive wheel or drive rod even when the protective plate is open, posing a safety risk of personnel being caught, squeezed, or collided. In addition, the removal and installation of the existing protective plate and the locking of the drive components usually require separate operations, which not only increases the number of maintenance steps but also easily reduces maintenance safety by overlooking the locking operation of the drive components. Summary of the Invention

[0005] The purpose of this invention is to overcome the problem that the opening and closing of the protective plate and the locking of the drive rod in the existing belt conveyor safety protection frame are independent of each other, which means that the drive rod and drive wheel may still rotate after the protective plate is opened, making it difficult to take into account the problem of quick disassembly and assembly of the protective plate and equipment maintenance.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A quick-release safety protection frame for a belt conveyor is provided, which is installed on the outside of the drive wheel of the belt conveyor. The drive wheel is connected to a drive rod. The safety protection frame includes a protective frame and a protective plate that can be opened and closed and installed on the protective frame. It also includes locking mechanisms and fixing mechanisms; The locking mechanism includes an operating component, a transmission component, and a locking assembly. The operating component is connected to the transmission component, and the transmission component is used to drive the locking assembly to move between a locked position and a released position. The fixing mechanism includes a plug rod and a plug slot respectively disposed on the protective frame and the protective plate, wherein the plug rod and the plug slot are engaged in a plugging and unplugging manner; The transmission component is connected to the locking assembly and the plug rod respectively, so that the locking mechanism and the fixing mechanism can switch between the first linkage state and the second linkage state. In the first linkage state, the locking component is in the locked position and the plug rod is disengaged from the plug slot to release the locking of the protective plate; in the second linkage state, the locking component is in the released position and the plug rod is inserted into the plug slot to lock the protective plate to the protective frame.

[0007] Furthermore, the operating component includes a control lever, and the transmission component includes a bidirectional screw connected to the control lever and two screw seats respectively threaded onto the bidirectional screw; the two screw seats are respectively connected to the bidirectional screw.

[0008] Furthermore, the locking assembly includes a first pressing block, a moving rod, and a rotating rod; the first pressing block is disposed on a screw seat, the rotating rod is disposed on a protective frame, and the moving rod is rotatably connected to the rotating rod; the first pressing block abuts against the moving rod.

[0009] Furthermore, the movable rod is disposed on both sides of the drive rod, and a bonding plate is disposed at the end of the movable rod near the drive rod; In the locked position, the two bonding plates press against the opposite sides of the drive rod respectively; the bonding plates are provided with bonding surfaces that are adapted to the outer peripheral surface of the drive rod.

[0010] Furthermore, a first connecting plate is provided on the movable rod, and a return spring is provided between the first connecting plate and the protective frame.

[0011] Furthermore, the plug rod is connected to the screw seat via a transmission, so that the plug rod exits the plug slot in the first linkage state and inserts into the plug slot in the second linkage state.

[0012] Furthermore, the fixing mechanism also includes a telescopic rod, a connecting spring, and a second connecting plate. The telescopic rod is connected to the insertion rod, the connecting spring is sleeved on the telescopic rod, the second connecting plate is used to support the telescopic rod and the connecting spring, and the connecting spring is used to apply a force to the insertion rod to move towards the insertion slot.

[0013] Furthermore, the control lever is provided with an operating end that extends out of the protective frame, and the operating end is provided with a control groove.

[0014] Compared with related technologies, the beneficial effects achieved by this invention are as follows: This invention, by setting up a locking mechanism and a fixing mechanism, and by connecting the transmission component to the locking assembly and the plug-in rod respectively, allows the locking mechanism and the fixing mechanism to switch between two linkage states. When the plug-in rod exits the plug-in slot and releases the protective plate, the locking assembly is in the locked position and restricts the rotation of the drive rod. When the plug-in rod is inserted into the plug-in slot and locks the protective plate, the locking assembly is in the released position. This creates a mechanical interlock between the unlocking of the protective plate and the locking of the drive rod, preventing the drive rod from still rotating after the protective plate is opened, thus improving the safety of the belt conveyor maintenance process. Attached Figure Description

[0015] Figure 1 The figure shown is an overall structural diagram of the quick-disassembly and detachable safety protection frame for belt conveyors provided by the present invention. Figure 2 The figure shown is an exploded view of the quick-disassembly and detachable safety protection frame for belt conveyors provided by the present invention. Figure 3 The diagram shown is a partial schematic of the quick-disassembly and detachable safety protection frame for belt conveyors provided by the present invention. Figure 4 As shown Figure 3 Enlarged view of partial schematic diagram A in the middle; Figure 5 The diagram shown is another partial schematic of the quick-disassembly and detachable safety protection frame for belt conveyors provided by the present invention. Figure 6 As shown Figure 5 Enlarged view of partial schematic diagram B.

[0016] In the diagram: 1. Protective frame; 2. Conveying equipment; 3. Protective plate; 4. Locking mechanism; 401. Control rod; 402. Control groove; 403. Bidirectional screw; 404. Screw seat; 405. First pressing block; 406. Moving rod; 407. First connecting plate; 408. Return spring; 409. Rotating rod; 410. Adhesive plate; 5. Fixing mechanism; 501. Insertion rod; 502. Insertion groove; 503. Telescopic rod; 504. Connecting spring; 505. Second connecting plate; 6. Drive rod; 7. Drive wheel. Detailed Implementation

[0017] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments and specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations thereof. In the absence of conflict, the technical features in the embodiments and embodiments can be combined with each other.

[0018] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0019] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other. Example 1:

[0020] like Figure 1 and Figure 2 As shown, this embodiment provides a quick-release safety protection frame for a belt conveyor; the safety protection frame is set outside the drive wheel 7 of the belt conveyor to shield and protect the drive wheel 7 and the drive rod 6 connected to the drive wheel 7, and to mechanically lock the drive rod 6 before the protective plate 3 is opened.

[0021] The safety protection frame includes a protective frame 1, a protective plate 3, a locking mechanism 4, and a fixing mechanism 5. The protective frame 1 is fixedly installed on the conveyor equipment 2 of the belt conveyor and is located on the outside of the drive wheel 7. The protective frame 1 forms a maintenance opening at the position corresponding to the drive wheel 7 so that maintenance personnel can inspect and maintain the drive wheel 7, the drive rod 6, and their connecting parts. The protective plate 3 is located at the maintenance opening of the protective frame 1 and can be opened and closed on the protective frame 1.

[0022] In this embodiment, one side of the protective plate 3 is rotatably connected to the protective frame 1, and the other side of the protective plate 3 is the locking side; when the protective plate 3 is closed, it covers the maintenance opening to prevent personnel from contacting the drive wheel 7 and drive rod 6 during normal operation of the belt conveyor; after the protective plate 3 is unlocked, it can rotate outward to expose the maintenance opening.

[0023] The locking mechanism 4 is mounted on the protective frame 1 and located on both sides of the drive rod 6. The locking mechanism 4 includes an operating component, a transmission component, and a locking assembly. The operating component is used to receive the operating force applied by the maintenance personnel. The transmission component is used to convert the rotation of the operating component into linear motion. The locking assembly is used to move closer to or away from the drive rod 6 under the drive of the transmission component.

[0024] In this embodiment, the operating component is a control lever 401, which is rotatably mounted on the protective frame 1. One end of the control lever 401 forms an operating end extending out of the protective frame 1, and a control groove 402 is provided on the operating end. The control groove 402 can be an internal hexagonal groove. Maintenance personnel use a special tool adapted to the control groove 402 to insert into the control groove 402 and drive the control lever 401 to rotate. The other end of the control lever 401 is connected to a transmission component. The transmission component includes a bidirectional screw 403 and two... A screw seat 404, wherein the bidirectional screw 403 is rotatably supported on the protective frame 1. The bidirectional screw 403 is coaxially connected to the control rod 401 or connected through a coupling sleeve, so that when the control rod 401 rotates, it can drive the bidirectional screw 403 to rotate synchronously. When the control rod 401 rotates in the first direction, the bidirectional screw 403 drives the two screw seats 404 to move away from each other. When the control rod 401 rotates in the second direction opposite to the first direction, the bidirectional screw 403 drives the two screw seats 404 to move closer to each other.

[0025] like Figure 3 and Figure 4 As shown, the locking assembly includes a first pressing block 405, a moving rod 406, a rotating rod 409, and an adhesive plate 410; the first pressing block 405 is disposed on the screw seat 404, and the first pressing block 405 moves synchronously with the screw seat 404; the moving rod 406 is respectively disposed on opposite sides of the drive rod 6, and the middle part of the moving rod 406 is rotatably mounted on the protective frame 1 through the rotating rod 409, so that the moving rod 406 can swing with the rotating rod 409 as the fulcrum; one end of the moving rod 406 is the pressure end, and the first pressing block 405 abuts against the pressure end of the moving rod 406; the other end of the moving rod 406 is the locking end, and the locking end is disposed towards the drive rod 6.

[0026] Each of the movable rods 406 has a bonding plate 410 at one end near the drive rod 6, with the two bonding plates 410 facing each other and the drive rod 6 positioned between the two bonding plates 410; the side of the bonding plate 410 facing the drive rod 6 has a bonding surface adapted to the outer circumferential surface of the drive rod 6; when the drive rod 6 is a cylindrical rod, the bonding surface can be set as an arc-shaped concave surface adapted to the outer circumferential surface of the drive rod 6; anti-slip textures can also be provided on the bonding surface.

[0027] Each of the moving rods 406 is provided with a first connecting plate 407. A return spring 408 is provided between the first connecting plate 407 and the protective frame 1. One end of the return spring 408 is connected to the first connecting plate 407 and the other end is connected to the protective frame 1. When the first pressing block 405 does not apply pressing force to the moving rod 406, the return spring 408 applies a reset force to the moving rod 406, so that the locking end of the moving rod 406 moves away from the driving rod 6 and the bonding plate 410 is separated from the driving rod 6.

[0028] Therefore, when the locking mechanism 4 switches from the locked position to the released position, the return spring 408 can reset the moving rod 406.

[0029] like Figure 5 and Figure 6 As shown, the fixing mechanism 5 is used to lock the protective plate 3 onto the protective frame 1. The fixing mechanism 5 includes a plug rod 501, a plug slot 502, a telescopic rod 503, a connecting spring 504, and a second connecting plate 505. Specifically, a plug slot 502 is provided at each end of the locking side of the protective plate 3, and two plug rods 501 are correspondingly provided on the protective frame 1. The plug rods 501 can move in a direction toward or away from the plug slots 502. When the plug rod 501 is inserted into the corresponding plug slot 502, the plug rod 501 restricts the protective plate 3 from rotating or moving relative to the protective frame 1, keeping the protective plate 3 in a closed state. When both plug rods 501 are withdrawn from the corresponding plug slots 502, the protective plate 3 is unlocked and can be opened.

[0030] The two plug-in rods 501 are respectively connected to the two screw seats 404. In this embodiment, each screw seat 404 is provided with a second connecting plate 505, which moves synchronously with the screw seat 404. One end of the telescopic rod 503 is connected to the plug-in rod 501, and the other end of the telescopic rod 503 is movably connected or limited to the second connecting plate 505, so that when the second connecting plate 505 moves, it can drive the telescopic rod 503 and the plug-in rod 501 to move in the insertion and extraction direction.

[0031] The connecting spring 504 is sleeved on the telescopic rod 503 and supported between the plug rod 501 and the second connecting plate 505. The connecting spring 504 applies an elastic force to the plug rod 501, causing it to move toward the plug groove 502. When the protective plate 3 is closed and the plug rod 501 is aligned with the plug groove 502, the connecting spring 504 pushes the plug rod 501 into the plug groove 502 to lock the protective plate 3.

[0032] When the control lever 401 rotates from the second linkage state to the first linkage state, before the insertion rod 501 completely exits the insertion slot 502, the first pressing block 405 has already pushed the moving rod 406 to rotate, and caused the bonding plate 410 to abut against the drive rod 6; as the control lever 401 continues to rotate, the two bonding plates 410 further press the drive rod 6, while the insertion rod 501 completely exits the insertion slot 502; when the protective plate 3 can be opened, the drive rod 6 is already in a state of restricted rotation, avoiding the dangerous intermediate state where the insertion rod 501 has exited the insertion slot 502 but the bonding plate 410 has not yet locked the drive rod 6.

[0033] When the control lever 401 rotates from the first linkage state to the second linkage state, the insertion rod 501 gradually inserts into the insertion slot 502 under the action of the connecting spring 504. After the insertion rod 501 inserts into the insertion slot 502 and locks the protective plate 3, the first pressing block 405 moves further away from the moving rod 406, causing the moving rod 406 to rotate to the release position under the action of the return spring 408, and separating the bonding plate 410 from the drive rod 6. Example 2:

[0034] The specific working process is as follows: When the belt conveyor is running normally or does not require maintenance, the protective plate 3 is in the closed state, and the locking mechanism 4 and the fixing mechanism 5 are in the second linkage state. In the second linkage state, the insertion rod 501 is inserted into the insertion slot 502 on the protective plate 3, locking the protective plate 3 onto the protective frame 1. At the same time, the first pressing block 405 is in the position where the moving rod 406 is not pressed, and the moving rod 406 is held in the released position under the action of the return spring 408. The two bonding plates 410 are located on both sides of the drive rod 6 and are spaced apart from the drive rod 6, so they do not hinder the normal rotation of the drive rod 6 and the drive wheel 7.

[0035] When maintenance is required on the drive wheel 7 or drive rod 6, the maintenance personnel first stop the belt conveyor, then insert a special tool into the control slot 402 of the control rod 401 and rotate the control rod 401 in the first direction. The control rod 401 drives the bidirectional screw 403 to rotate, and the bidirectional screw 403 drives the two screw seats 404 to move in opposite directions. During the movement of the screw seats 404, the first pressing block 405 pushes the pressure end of the corresponding moving rod 406, causing the two moving rods 406 to rotate around the corresponding rotating rod 409 respectively. The locking ends of the two moving rods 406 move synchronously toward the drive rod 6 until the two bonding plates 410 respectively abut and press against the opposite sides of the drive rod 6, thereby restricting the rotation of the drive rod 6.

[0036] The screw seat 404 drives the plug rod 501 to move away from the plug slot 502 via the second connecting plate 505 and the telescopic rod 503. When the plug rod 501 is completely out of the plug slot 502, the fixing mechanism 5 releases the lock on the protective plate 3, and the locking mechanism 4 and the fixing mechanism 5 are in the first linkage state. Maintenance personnel can open the protective plate 3 and perform maintenance on the drive wheel 7 and drive rod 6 through the maintenance opening.

[0037] After maintenance, the maintenance personnel first close the protective plate 3, aligning the insertion slot 502 on the protective plate 3 with the insertion rod 501. Then, using a special tool, they rotate the control lever 401 in the second direction. The control lever 401 drives the bidirectional screw 403 to rotate in the opposite direction, causing the two screw seats 404 to move in the opposite direction to when the protective plate 3 was opened. During the reverse movement of the screw seats 404, the second connecting plate 505 drives the telescopic rod 503 and the insertion rod 501 to move toward the insertion slot 502. The connecting spring 504 pushes the insertion rod 501 into the insertion slot 502, and relocks the protective plate 3 onto the protective frame 1.

[0038] As the screw seat 404 continues to move, the first pressing block 405 gradually releases its pressing effect on the moving rod 406. Under the action of the return spring 408, the moving rod 406 rotates in the opposite direction around the rotating rod 409, causing the two contact plates 410 to move away from the drive rod 6, thereby releasing the rotation restriction on the drive rod 6. At this time, the locking mechanism 4 and the fixing mechanism 5 return to the second linkage state, and the belt conveyor can be put back into operation.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A quick-release safety protection frame for a belt conveyor, which is set outside the drive wheel (7) of the belt conveyor, wherein the drive wheel (7) is connected to a drive rod (6), and the safety protection frame includes a protective frame (1) and a protective plate (3) that is detachably mounted on the protective frame (1). Its features are, It also includes a locking mechanism (4) and a fixing mechanism (5); The locking mechanism (4) includes an operating component, a transmission component, and a locking assembly. The operating component is connected to the transmission component, and the transmission component is used to drive the locking assembly to move between a locked position and a released position. The fixing mechanism (5) includes a plug rod (501) and a plug groove (502) respectively disposed on the protective frame (1) and the protective plate (3), wherein the plug rod (501) and the plug groove (502) are engaged in plugging and unplugging. The transmission component is connected to the locking assembly and the plug rod (501) respectively, so that the locking mechanism (4) and the fixing mechanism (5) can switch between the first linkage state and the second linkage state; In the first linkage state, the locking component is in the locked position and the plug rod (501) exits the plug slot (502) to release the lock on the protective plate (3); in the second linkage state, the locking component is in the released position and the plug rod (501) is inserted into the plug slot (502) to lock the protective plate (3) to the protective frame (1).

2. The quick-detachable safety protection frame for belt conveyors according to claim 1, characterized in that, The operating component includes a control lever (401), and the transmission component includes a bidirectional screw (403) connected to the control lever (401) and two screw seats (404) respectively threaded onto the bidirectional screw (403); the two screw seats (404) are respectively connected to the bidirectional screw (403).

3. The quick-detachable safety protection frame for belt conveyors according to claim 2, characterized in that, The locking assembly includes a first pressing block (405), a moving rod (406), and a rotating rod (409); the first pressing block (405) is disposed on a screw seat (404), the rotating rod (409) is disposed on a protective frame (1), and the moving rod (406) is rotatably connected to the rotating rod (409); the first pressing block (405) abuts against the moving rod (406).

4. The quick-detachable safety protection frame for belt conveyors according to claim 3, characterized in that, The movable rod (406) is arranged on both sides of the drive rod (6), and a bonding plate (410) is provided at the end of the movable rod (406) near the drive rod (6). In the locked position, the two bonding plates (410) press against the opposite sides of the drive rod (6); the bonding plates (410) are provided with bonding surfaces that are adapted to the outer peripheral surface of the drive rod (6).

5. The quick-detachable safety protection frame for belt conveyors according to claim 3, characterized in that, A first connecting plate (407) is provided on the moving rod (406), and a return spring (408) is provided between the first connecting plate (407) and the protective frame (1).

6. The quick-detachable safety protection frame for belt conveyors according to claim 2, characterized in that, The plug rod (501) is connected to the screw seat (404) so ​​that the plug rod (501) exits the plug slot (502) in the first linkage state and is inserted into the plug slot (502) in the second linkage state.

7. The quick-detachable safety protection frame for belt conveyors according to claim 6, characterized in that, The fixing mechanism (5) further includes a telescopic rod (503), a connecting spring (504), and a second connecting plate (505). The telescopic rod (503) is connected to the plug rod (501). The connecting spring (504) is sleeved on the telescopic rod (503). The second connecting plate (505) is used to support the telescopic rod (503) and the connecting spring (504). The connecting spring (504) is used to apply a force to the plug rod (501) to move toward the plug groove (502).

8. The quick-detachable safety protection frame for belt conveyors according to claim 2, characterized in that, The control lever (401) is provided with an operating end that extends out of the protective frame (1), and the operating end is provided with a control slot (402).

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