Carrier roller falling prevention device applied to belt conveyor

Abstract

The utility model discloses a device for preventing a carrier roller from falling off applied to a belt conveyor, which belongs to the technical field of belt equipment protection and comprises a carrier roller shaft and two symmetrically arranged carrier roller frames, each carrier roller frame is provided with a rotating groove in the direction far away from the carrier roller, and the tail end of each rotating groove is provided with a mounting hole in the direction far away from the carrier roller. The carrier roller shaft penetrates through the rotating groove and is inserted into the mounting hole, a rotating block is fixedly connected to the periphery of the outer side of the part, located in the rotating groove, of the carrier roller shaft, the rotating block is rotationally connected with the rotating groove, an annular stop block is slidably and hermetically connected into the rotating groove, the end face of one end of the stop block makes contact with the end face of the rotating block, and the end face of the other end of the stop block is flush with the surface of the carrier roller frame; a locking assembly is arranged between the check block and the carrier roller frame. According to the utility model, the double anti-falling design of mechanical locking and dynamic monitoring is realized, the self-adaptive load adjustment is realized, the service life of the carrier roller is prolonged, the carrier roller is prevented from falling off due to long-time abrasion, the belt is protected to the greatest extent, and the economic loss is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of belt conveyor protection technology, specifically, it relates to an anti-idler roll detachment device for belt conveyors. Background Technology

[0002] Belt conveyors are widely used in loading equipment as material transmission devices. They utilize idlers rotating around an idler frame to convert sliding friction into rolling friction, thus supporting and transmitting power to the belt. In practical applications, due to prolonged operation, wear can occur on the idlers at the support points on the idler frame, leading to idler detachment. This detachment can cause physical damage to the return belt below. Given the high cost of belts, belt damage can result in significant economic losses. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide an anti-idler slippage device for belt conveyors, comprising an idler shaft and an idler mounted on the idler shaft, and two symmetrically arranged idler frames. Each idler frame has a rotating groove extending away from the idler, and the end of the rotating groove has a mounting hole extending away from the idler. The idler shaft passes through the rotating groove and is inserted into the mounting hole. A rotating block is fixedly connected to the outer circumference of the portion of the idler shaft located within the rotating groove. The rotating block is rotatably connected to the rotating groove. An annular stop block is slidably and sealingly connected within the rotating groove. One end face of the stop block contacts the end face of the rotating block, and the other end face is flush with the surface of the idler frame. A locking assembly is provided between the stop block and the idler frame.

[0004] As a preferred embodiment, the locking assembly includes a fixing block fixed on the roller frame, the fixing block having a pin hole, and a pin being inserted into the pin hole.

[0005] As a preferred embodiment, a hand grip block is fixedly connected to the outer surface of the stop block, and the hand grip block has a through hole through which the pin can pass.

[0006] As a preferred embodiment, a receiving plate is provided below the idler roller, and both ends of the receiving plate are fixedly connected to the idler roller frame.

[0007] As a preferred embodiment, vertically arranged telescopic rods are fixedly connected to both sides of the receiving plate, and a support plate is fixedly connected to the upper end of the telescopic rod. The upper surface of the support plate is in contact with the roller shaft. A pressure spring is sleeved on the outer side of the telescopic rod, and the two ends of the pressure spring are connected to the lower surface of the support plate and the receiving plate respectively through dampers.

[0008] As a preferred embodiment, a metal stress plate is provided between the lower end of the pressure spring and the receiving plate, the metal stress plate is electrically connected to a controller, and the controller is electrically connected to an alarm device provided on the roller frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model features a dual anti-drop design with mechanical locking and dynamic monitoring, while also adaptively adjusting the load to extend the life of the idler rollers and prevent them from falling off due to prolonged wear, thus maximizing the protection of the belt and reducing economic losses. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the roller frame of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to specific embodiments.

[0014] An anti-idler slippage device for belt conveyors includes an idler shaft 1 and an idler mounted on the idler shaft 1, and two symmetrically arranged idler frames 2. Each idler frame 2 has a rotating groove 3 extending away from the idler, and an installation hole 4 extending away from the idler at the end of the rotating groove 3. The idler shaft 1 passes through the rotating groove 3 and is inserted into the installation hole 4. A rotating block 5 is fixedly connected to the outer circumference of the portion of the idler shaft 1 located in the rotating groove 3. The rotating block 5 is rotatably connected to the rotating groove 3. An annular stop block 6 is slidably and sealingly connected in the rotating groove 3. One end face of the stop block 6 contacts the end face of the rotating block 5, and the other end face is flush with the surface of the idler frame 2. A locking assembly is provided between the stop block 6 and the idler frame 2.

[0015] As a preferred embodiment, the diameter of the mounting hole 4 can form a sliding fit with the outer diameter of the roller frame 2, and the diameter of the mounting hole 4 is smaller than the diameter of the rotating groove 3.

[0016] The idler shaft 1 slides from the rotating groove 3 into the mounting hole 4. The rotating block 5 restricts the axial displacement of the idler shaft 1. The annular stop 6 presses the rotating block 5 with the locking assembly to prevent the idler shaft 1 from sliding out of the rotating groove 3 in the opposite direction. The idler shaft 1 can rotate around the axis of the mounting hole 4. The sliding fit between the rotating block 5 and the rotating groove 3 allows the idler to adjust its position slightly with the movement of the belt. Furthermore, through the sliding fit between the rotating block 5 and the rotating groove 3 and the limiting effect, the problem of the idler falling off due to wear on the support part of the idler shaft 1 at the idler frame 2 caused by long-term operation of the idler can be effectively prevented.

[0017] As a preferred embodiment, the locking assembly includes a fixing block 7 fixed on the roller frame 2, the fixing block 7 having a pin hole 8, and a pin 9 inserted into the pin hole 8.

[0018] After the pin 9 is inserted into the pin hole 8, the pin 9 can block the surface of the stop block 6, thereby restricting the sliding of the stop block 6 and forming a rigid constraint. Preferably, the pin 9 can be made of high-strength alloy steel, and the pin hole 8 is embedded with a wear-resistant bushing. In order to maintain stability, the pin hole 8 and the pin 9 can be magnetically engaged. Preferably, the locking assembly can be a pair and symmetrically arranged about the roller shaft 1.

[0019] As a preferred embodiment, a hand grip block 10 is fixedly connected to the outer surface of the stop block 6, and the hand grip block 10 has a through hole through which the pin 9 can pass.

[0020] The hand grip 10 provides a point of leverage for the staff to push and pull the stop block 6, and the pin 9 can be locked with one hand after passing through the through hole of the hand grip 10.

[0021] As a preferred embodiment, a receiving plate 11 is provided below the idler roller, and the two ends of the receiving plate 11 are fixedly connected to the idler roller frame 2 respectively.

[0022] The receiving plate 11 is preferably welded to the inside of the idler frame 2. If the idler frame 2 accidentally falls off, the receiving plate 11 can catch the idler and prevent the idler from falling directly and damaging the belt. Preferably, a rubber layer can be covered on the surface of the receiving plate 11 to reduce the impact force generated by the idler falling off.

[0023] As a preferred embodiment, vertically arranged telescopic rods 12 are fixedly connected to both sides of the receiving plate 11, and a support plate 13 is fixedly connected to the upper end of the telescopic rod 12. The upper surface of the support plate 13 contacts the roller shaft 1, and a pressure spring 14 is sleeved on the outer side of the telescopic rod 12. The two ends of the pressure spring 14 are connected to the lower surface of the support plate 13 and the receiving plate 11 respectively through dampers.

[0024] The pressure spring 14 automatically adjusts the height of the support plate 13 according to the load of the idler roller to maintain a constant contact pressure between the idler roller and the belt. The damper absorbs belt vibration and prevents the idler roller from jumping.

[0025] As a preferred embodiment, a metal stress plate 15 is provided between the lower end of the pressure spring 14 and the receiving plate 11. The metal stress plate 15 is electrically connected to a controller 16, and the controller 16 is electrically connected to an alarm 17 provided on the roller frame 2.

[0026] The metal stress plate 15 can detect the pressure of the pressure spring 14 in real time and transmit the data to the controller 16. When the pressure value exceeds the preset value (such as when the idler roller falls off), the controller 16 activates the alarm 17 to sound an alarm. Preferably, the metal stress plate 15 model can be KFU-5-120-C1-11, manufactured by KYOWA Japan.

[0027] The overall workflow is as follows:

[0028] Installation phase:

[0029] Push the roller shaft 1 into the mounting hole 4 along the rotating groove 3, and the rotating block 5 is inserted into the rotating groove 3.

[0030] Push the annular stop 6 until it is in close contact with the rotating block 5, and insert the pin 9 to lock it.

[0031] Operation phase:

[0032] The idler roller rotates freely with the belt, and the rotating block 5 slides within the rotating groove 3 to finely adjust its position.

[0033] The pressure spring 14 dynamically supports the roller through the support plate 13, and the damper absorbs the vibration.

[0034] Anomaly monitoring:

[0035] The metal stress plate 15 continuously monitors the pressure of the spring 14 and feeds the data back to the controller 16.

[0036] If the pressure is abnormal (such as the roller falling off causing a sudden increase in the pressure of spring 14), the controller 16 will trigger an audible and visual alarm.

[0037] Maintenance phase:

[0038] Pull out the pin 9, pull the handle block 10 to move the stop block 6, and slide the idler roller shaft 1 in the opposite direction to remove the idler roller.

[0039] The receiving board 11 catches parts that fall during maintenance, thus preventing safety hazards.

[0040] This utility model features a dual anti-drop design with mechanical locking and dynamic monitoring, while also adaptively adjusting the load to extend the life of the idler rollers and prevent them from falling off due to prolonged wear, thus maximizing the protection of the belt and reducing economic losses.

[0041] The contents not described in detail in this specification are existing technologies known to those skilled in the art, and their specifications and models can be selected according to actual conditions.

[0042] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A device for preventing idler rollers from falling off a belt conveyor, comprising an idler roller shaft (1) and idler rollers disposed on the idler roller shaft (1), characterized in that, It also includes two symmetrically arranged idler frames (2), each of which has a rotating groove (3) in the direction away from the idler. The end of the rotating groove (3) has a mounting hole (4) in the direction away from the idler. The idler shaft (1) passes through the rotating groove (3) and is inserted into the mounting hole (4). A rotating block (5) is fixedly connected around the outer side of the part of the idler shaft (1) located in the rotating groove (3). The rotating block (5) is rotatably connected to the rotating groove (3). An annular stop (6) is slidably sealed in the rotating groove (3). One end face of the stop (6) is in contact with the end face of the rotating block (5), and the other end face is flush with the surface of the idler frame (2). A locking assembly is provided between the stop (6) and the idler frame (2).

2. The anti-idler slippage device for belt conveyors according to claim 1, characterized in that, The locking assembly includes a fixing block (7) fixed on the roller frame (2), the fixing block (7) having a pin hole (8) and a pin (9) inserted into the pin hole (8).

3. The anti-idler slippage device for belt conveyors according to claim 2, characterized in that, The outer surface of the stop block (6) is fixedly connected to a hand grip block (10), and the hand grip block (10) has a through hole through which the pin (9) can pass.

4. The anti-idler slippage device for belt conveyors according to claim 1, characterized in that, A receiving plate (11) is provided below the idler roller, and the two ends of the receiving plate (11) are fixedly connected to the idler roller frame (2).

5. The anti-idler slippage device for belt conveyors according to claim 4, characterized in that, The receiving plate (11) is fixedly connected to two vertically arranged telescopic rods (12) on both sides. The upper end of the telescopic rod (12) is fixedly connected to a support plate (13). The upper surface of the support plate (13) is in contact with the roller shaft (1). A pressure spring (14) is sleeved on the outside of the telescopic rod (12). The two ends of the pressure spring (14) are connected to the lower surface of the support plate (13) and the receiving plate (11) respectively through dampers.

6. The anti-idler slippage device for belt conveyors according to claim 5, characterized in that, A metal stress plate (15) is provided between the lower end of the pressure spring (14) and the receiving plate (11). The metal stress plate (15) is electrically connected to a controller (16). The controller (16) is electrically connected to an alarm (17) provided on the roller frame (2).

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