Device for preventing disengagement of shaft end of idler roller

Abstract

A device for preventing disengagement of a shaft end of an idler roller, applied to an idler roller support (1) having a U-shaped structure, wherein an idler roller notch (11) is formed on the idler roller support (1). The device comprises a pressing structure (2) and mounting structures (3); mounting holes (12) are symmetrically provided on two sides of the idler roller support (1), the axis of each mounting hole (12) and the axis of the idler roller notch (11) are perpendicular to each other, a pressing step (21) is provided on the pressing structure (2), the pressing step (21) abuts against the upper side of a shaft end of an idler roller, the mounting structures (3) are arranged at two ends of the pressing structure (2) to be capable of extending / retracting, and the mounting structures (3) pass through the mounting holes (12). Compared with the prior art, the device has the advantages of simple structure, convenient mounting and dismounting, long service life and the like.

Description

A roller shaft anti-derailment device Technical Field

[0001] This invention relates to the field of belt conveyor idler equipment, and in particular to an idler shaft anti-derailment device. Background Technology

[0002] Belt conveyor idlers play a crucial role in the material transport process of belt conveyors. As a supporting structure for the conveyor belt, idlers bear the weight of the material and support the operation of the conveyor belt. During operation, they reduce the friction between the conveyor belt and the material, protect the material, and make the conveyor belt operation more stable, reducing material sway and ensuring the normal operation of the conveyor belt.

[0003] During the operation of the conveyor belt, due to external forces such as vibration of the belt conveyor or suction of the magnetic separator, the idlers may sometimes fall off the trough or jump out of the trough. Sometimes, all the idlers on the idler bracket may fall off the trough, and the conveyor belt may come into direct contact with the idler bracket during operation, causing serious consequences such as belt wear, tearing and perforation, resulting in equipment safety accidents and property losses.

[0004] For example, the utility model with publication number CN214826468U discloses a roller anti-detachment device for a belt conveyor, including a roller support plate. Multiple sets of roller grooves are opened through the top of the roller support plate, and two sets of assembly holes are opened through the lower end of the roller support plate. A rotating groove is opened on the inner wall of the roller groove, and a first rotating shaft is fixedly connected to the inner wall of the rotating groove. A rotating roller is movably sleeved on the first rotating shaft, and two sets of brackets are fixedly connected to the top edge of one end of the roller support plate.

[0005] However, the aforementioned existing technology prevents the idler shaft from jumping out of the idler groove by setting an anti-detachment rod at the upper end of the idler groove. However, the distance between the shaft and the anti-detachment rod is relatively large. During the operation of the belt conveyor, the shaft jumps and collides with the anti-detachment rod, resulting in a short service life. Furthermore, this anti-detachment structure is not suitable for idler supports with limited space above, and the overall structure is relatively complex to install and disassemble. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology, which uses an anti-detachment rod set above the idler roller bracket for anti-detachment, and to provide an anti-detachment groove device for the idler roller shaft head.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A roller shaft anti-derailment device is provided for a U-shaped roller bracket. The roller bracket has a roller groove. The device includes a clamping structure and an mounting structure. Mounting holes are symmetrically provided on both sides of the roller bracket. The axis of the mounting holes is perpendicular to the axis of the roller groove. The clamping structure has a clamping step, which abuts against the upper end of the roller shaft. The mounting structure is telescopically provided at both ends of the clamping structure and passes through the mounting holes.

[0009] Preferably, the clamping structure has a spring fixing cavity inside, a spring is provided in the spring fixing cavity, and through holes are provided at both ends of the spring fixing cavity. The mounting structure is slidably disposed in the through holes, and the spring contacts and connects to the mounting structure for resetting after compression.

[0010] Preferably, the mounting structure includes two circular contacts that match the shape of the mounting hole, and the two circular contacts are symmetrically arranged on both sides of the spring fixing cavity.

[0011] Preferably, one end of the circular contact connecting spring is provided with a limiting plate, the diameter of which is larger than the diameter of the through hole and smaller than the diameter of the spring fixing cavity.

[0012] Preferably, the end of the circular contact away from the spring has a rounded chamfer.

[0013] Preferably, the clamping structure further includes a fixed base, the fixed cavity is located inside the fixed base, and the clamping step is disposed on the side of the fixed base near the shaft head.

[0014] Preferably, the fixing base includes an upper shell and a lower shell arranged symmetrically, and the upper shell and the lower shell together form a spring fixing cavity and a through hole.

[0015] Preferably, the upper housing and the lower housing are connected by bolts.

[0016] Preferably, the fixed base is matched with the U-shaped structure on the side of the idler bracket away from the idler, and the end faces on both sides of the fixed base are arranged parallel to the two sides of the idler bracket.

[0017] Preferably, the clamping structure and the mounting structure are made of 16Mn steel.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) In this scheme, after the installation structure is compressed, it is placed on one side of the installation hole. The installation structure extends out and passes through the installation hole to fix the clamping structure on the roller bracket. The clamping step on the clamping structure is located at the upper end of the shaft head and abuts against the shaft head to limit the shaft head. When it needs to be replaced, the installation structure is pressed and retracted from the installation hole to disassemble the clamping structure.

[0020] By incorporating retractable mounting structures on both sides of the clamping structure, the clamping structure can be installed or disassembled simply by extending and retracting these structures. This design is simple, convenient, and improves installation and disassembly efficiency. Furthermore, the clamping step located above and abutting the shaft head on the clamping structure effectively clamps and prevents the shaft head from slipping, thus avoiding damage to the anti-slip rod and extending the service life of the anti-slip device.

[0021] (2) The installation structure adopts a circular contact and is slidably set in the through hole on the fixed base. Pressing the installation structure can remove the installation structure from the installation hole on the roller bracket and take out the clamping structure. The spring in the fixed base is used to reset it, which is convenient for the next use. The anti-derailment device has a simple structure, high operability, wide application range and low cost. It is easy to maintain and reduces the difficulty of replacement for maintenance personnel. Attached Figure Description

[0022] Figure 1 is a front view of the anti-detachment device provided by the present invention;

[0023] Figure 2 is a left view of the anti-detachment device provided by the present invention;

[0024] Figure 3 is a side view of the idler roller with the anti-detachment device provided by the present invention;

[0025] Figure 4 is a partial front view of the idler roller with the anti-detachment device provided by the present invention;

[0026] In the diagram: 1. Idler support, 11. Idler groove, 12. Mounting hole, 2. Pressing structure, 21. Pressing step, 22. Spring fixing cavity, 23. Fixing base, 231. Upper shell, 232. Lower shell, 3. Mounting structure, 4. Spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Example 1

[0034] As shown in Figures 3 and 4, this embodiment provides a roller shaft anti-derailment device for a U-shaped roller bracket 1. The roller bracket 1 is provided with a roller groove 11. The device includes a pressing structure 2 and an mounting structure 3. Mounting holes 12 are symmetrically provided on both sides of the roller bracket 1. The axis of the mounting holes 12 is perpendicular to the axis of the roller groove 11. The pressing structure 2 is provided with a pressing step 21, which abuts against the upper end of the roller shaft. The mounting structure 3 is telescopically provided at both ends of the pressing structure 2 and passes through the mounting holes 12.

[0035] Working principle: After compressing the mounting structure 3, place it on one side of the mounting hole 12. The mounting structure 3 extends out and passes through the mounting hole 12, fixing the clamping structure 2 on the roller bracket 1. The clamping step 21 on the clamping structure 2 is located at the upper end of the shaft head and abuts against the shaft head to limit the shaft head. When it needs to be replaced, press the mounting structure 3 and retract it from the mounting hole to disassemble the clamping structure 2.

[0036] By providing retractable mounting structures 3 on both sides of the clamping structure 2, the clamping structure 2 can be installed or disassembled by extending and retracting the mounting structures 3. The structure is simple and easy to operate, improving installation and disassembly efficiency. Moreover, by using the clamping step 21 located above and abutting the shaft head on the clamping structure 2, the shaft head is clamped and prevented from slipping, which can prevent the shaft head from jumping and damaging the anti-slip rod, thus extending the service life of the anti-slip device.

[0037] As shown in Figures 1 and 2, in the preferred embodiment, the pressing structure 2 has a spring fixing cavity 22 inside, and a spring 4 is provided inside the spring fixing cavity 22. The two ends of the spring fixing cavity 22 have through holes. The mounting structure 3 is slidably disposed in the through holes. The spring 4 contacts and connects to the mounting structure 3 for resetting after the mounting structure 3 is compressed.

[0038] Specifically, the mounting structure 3 includes two circular contacts that match the shape of the mounting hole 12. The two circular contacts are symmetrically arranged on both sides of the spring fixing cavity 22. One end of the circular contact that contacts the spring 4 is provided with a limiting plate. The diameter of the limiting plate is larger than the diameter of the through hole and smaller than the diameter of the spring fixing cavity 22.

[0039] The mounting structure uses a circular contact and is slidably installed in the through hole on the fixed base. Pressing the mounting structure will disengage it from the mounting hole on the roller bracket, and the clamping structure can be removed. The spring in the fixed base is used to reset it for easy use next time. The anti-derailment device has a simple structure, high operability, wide application range, low cost, and convenient maintenance, reducing the difficulty of replacement for maintenance personnel.

[0040] The circular contact point away from spring 4 has a rounded chamfer at one end. The rebound points on both sides are designed with rounded ends to prevent injury from impact.

[0041] Furthermore, the clamping structure 2 also includes a fixed base 23, with a fixing cavity 22 located within the fixed base 23. A clamping step 21 is disposed on the side of the fixed base 23 near the shaft end. The fixed base 23 includes an upper housing 231 and a lower housing 232 symmetrically arranged, which together form the spring fixing cavity 22 and a through hole. The upper housing 231 and the lower housing 232 are connected by bolts.

[0042] After disassembling the upper housing 231 and the lower housing 232, install the spring 4 and the circular contact into the spring fixing cavity and the through hole, and then fix the upper housing 231 and the lower housing 232 to realize the assembly of the anti-detachment device. The structure is simple and the assembly is convenient.

[0043] The fixed base 23 is matched with the U-shaped structure on the side of the idler bracket 1 away from the idler, and the end faces on both sides of the fixed base 23 are set parallel to the two sides of the idler bracket 1. The middle part of the anti-detachment device adopts a square design to fit the plane of the idler bracket. While pressing downward, it can also use the two sides of the U-shaped idler bracket to stabilize the installation plane, making it more stable during use.

[0044] Specifically, the clamping structure 2 and the mounting structure 3 are made of 16Mn steel. This not only ensures that the parts hardly deform when subjected to multiple external forces such as the jumping and rebounding impact of the idler rollers, but also reduces the abnormal damage to the conveyor belt caused by the idler roller shafts being derailed due to external forces during operation, thus increasing the service life of the conveyor belt and improving economic efficiency.

[0045] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A shaft head anti-falling groove device for a carrier roller support (1) of a U-shaped structure, the carrier roller support (1) being provided with a carrier roller groove (11), characterized in that, The device comprises a pressing structure (2) and a mounting structure (3); the two sides of the carrier roller support (1) are symmetrically provided with mounting holes (12), the axes of the mounting holes (12) are perpendicular to the axes of the carrier roller grooves (11), the pressing structure (2) is provided with a pressing step (21), the pressing step (21) abuts against the upper end of the shaft head of the carrier roller, the mounting structure (3) is telescopically arranged at the two ends of the pressing structure (2), and the mounting structure (3) passes through the mounting hole (12).

2. A carrier roller shaft head anti-drop slot device according to claim 1, characterized in that, The inside of the pressing structure (2) is provided with a spring fixing cavity (22), the spring fixing cavity (22) is provided with a spring (4) inside, the two ends of the spring fixing cavity (22) are provided with through holes, the mounting structure (3) is slidingly arranged in the through holes, and the spring (4) is in contact connection with the mounting structure (3) and is used for resetting after compression of the mounting structure (3).

3. A carrier roll shaft head anti-drop channel device according to claim 2, characterized in that, The mounting structure (3) comprises two circular contacts, the circular contacts are matched with the shape of the mounting hole (12), and the two circular contacts are symmetrically arranged at the two sides of the spring fixing cavity (22).

4. A carrier roll shaft head anti-drop channel device according to claim 3, characterized in that One end of the circular contact in contact connection with the spring (4) is provided with a limiting plate, the diameter of the limiting plate is greater than the diameter of the through hole and smaller than the diameter of the spring fixing cavity (22).

5. A carrier roll shaft head anti-coming-off groove device according to claim 3, characterized in that The end, away from the spring (4), of the circular contact is provided with a circular chamfer.

6. A carrier roller shaft head anti-drop slot device according to claim 2, characterized in that, The pressing structure (2) further comprises a fixed base (23), the fixed cavity (22) is located in the fixed base (23), and the pressing step (21) is arranged on the side, close to the shaft head, of the fixed base (23).

7. A carrier roll shaft head anti-coming-off groove device according to claim 6, characterized in that The fixed base (23) comprises symmetrically arranged upper and lower housings (231) and (232), and the upper and lower housings (231) and (232) enclose the spring fixing cavity (22) and the through hole.

8. A carrier roller shaft head anti-drop channel device according to claim 7, characterized in that The upper and lower housings (231) and (232) are connected by bolts.

9. The carrier roller shaft head anti-disengaging groove device according to claim 6, characterized in that, The fixed base (23) is matched with the U-shaped structure on the side, away from the carrier roller, of the carrier roller support (1), and the end faces on the two sides of the fixed base (23) are arranged in parallel with the two sides of the carrier roller support (1).

10. The carrier roller shaft head anti-disengaging groove device according to claim 1, characterized in that, The materials of the pressing structure (2) and the mounting structure (3) are 16Mn steel.

Images