Light wear-resistant carrier roller convenient to install

Abstract

The light wear-resistant carrier roller convenient to install comprises a roller wheel and a disassembly and assembly mechanism, a graphene lining is fixedly arranged in the middle of the outer surface of the roller wheel in a sleeved mode, installation grooves are formed in the middle of the front side and the middle of the rear side in the roller wheel, and the disassembly and assembly mechanism comprises a connecting shaft, an extrusion block, a limiting ball, a limiting groove and a limiting assembly. The connecting shafts are arranged in the mounting grooves, the extrusion blocks are slidably connected to the sides, close to the middle of the roller, of the interiors of the connecting shafts, and the limiting balls are arranged at the upper ends and the lower ends of the sides, close to the middle of the roller, of the outer surfaces of the connecting shafts correspondingly. When the carrier roller is installed, the bearing does not need to be taken out, interference fit between the connecting shaft and the bearing is carried out in a cold charging mode, then the connecting shaft and the roller are rapidly fixed, the tedious steps of taking out, cleaning, heating and lubricating the bearing in the hot charging process are avoided, and the installation efficiency of the carrier roller is improved.

Description

Technical Field

[0001] This utility model relates to the field of belt conveyor idler technology, specifically a lightweight and wear-resistant idler that is easy to install. Background Technology

[0002] A belt conveyor is a material transport device that uses a continuous circular conveyor belt as the load-bearing and traction component. It mainly consists of a drive unit (motor, reducer, etc.), conveyor belt, rollers, idlers, and a frame. Driven by friction, the conveyor belt circulates, achieving efficient and continuous transport of bulk materials (such as ore, coal, and sand) or packaged goods. It features long conveying distances, large capacity, simple structure, and convenient maintenance, and is widely used in mining, ports, power, building materials, chemical, and logistics industries. Suitable for horizontal or low-angle inclination transport scenarios, it offers advantages such as adaptability to complex environments, energy saving, environmental friendliness, and ease of automation integration. It is an indispensable general-purpose conveying machinery in modern industrial production. The idlers of a belt conveyor are key components supporting the conveyor belt and materials. They support the weight of the belt and materials, prevent belt sagging, reduce belt running resistance, and ensure smooth operation. Existing belt conveyor idlers are typically made of steel, plastic, or composite materials, and consist of three layers. The innermost layer is often composed of a steel shaft, which is connected to an external mounting frame via bearings. The outer surface of the steel shaft... The idler roller is usually fitted with a filling layer, which is mostly made of plastic and can be adjusted to change the diameter of the roller. The outer surface of the filling layer has a contact layer, which is made of plastic, ceramic, polymer materials, etc. This contact layer directly contacts the conveyor belt and has self-lubricating, impact-resistant, wear-resistant, and corrosion-resistant properties. When installing the idler roller, the steel shaft and bearing housing are first connected by a heat-fitting method. The bearing housing is opened, the bearing is removed, cleaned, and then heated. Through thermal expansion and contraction, the inner diameter of the bearing increases. The bearing is then fitted onto both ends of the steel shaft. Once the bearing cools to normal operating temperature... After heating, the steel shaft and bearing form an interference fit. Then, the idler roller and bearing are placed in the appropriate position in the bearing housing. Lubricating oil is applied to the bearing surface before the bearing housing is fixed in place, completing the installation of the idler roller. In traditional belt conveyor idler rollers, the steel shaft and bushing are mostly fixed together by a filler layer. When connecting the steel shaft and bearing, heat installation is required. The bearing needs to be removed, cleaned, and heated before the idler roller can be connected to the bearing. During installation, the bearing also needs to be lubricated, which is very inconvenient. Therefore, we propose a lightweight and wear-resistant idler roller that is easy to install. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a lightweight and wear-resistant idler roller that is easy to install. It is equipped with an idler roller that can be quickly disassembled and assembled. The connecting shaft and the roller can be separated. When installing the idler roller, the bearing can be installed without removing it. The connecting shaft and the bearing are interference-fitted by cold installation. Then the connecting shaft and the roller can be quickly fixed. This avoids the cumbersome steps of removing, cleaning, heating and lubricating the bearing during hot installation, improves the installation efficiency of the idler roller and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lightweight and wear-resistant idler roller that is easy to install, comprising a roller and a disassembly and assembly mechanism;

[0005] Roller: A graphene bushing is fixedly fitted in the middle of its outer surface, and mounting grooves are opened in the middle of the front and rear sides inside the roller.

[0006] The disassembly and assembly mechanism includes a connecting shaft, an extrusion block, limiting balls, limiting grooves, and limiting components. The connecting shafts are all located inside the mounting groove. The extrusion blocks are slidably connected to the inside of the connecting shaft near the center of the roller. The limiting balls are located at the upper and lower ends of the outer surface of the connecting shaft near the center of the roller, and are installed in conjunction with the extrusion blocks. The limiting grooves are located at the upper and lower ends of the inner wall of the mounting groove, and the outer ends of the limiting balls are installed in conjunction with the inner walls of the laterally adjacent limiting grooves, providing a basis for disassembly and assembly of the connecting shaft and the roller. The limiting components are located inside the roller and between the connecting shaft. A quick-release idler roller is provided. The connecting shaft and roller are detachable. When installing the idler roller, the bearing can be installed without removing it. The connecting shaft and bearing are cold-fitted with an interference fit, and then the connecting shaft and roller are quickly fixed. This avoids the cumbersome steps of removing, cleaning, heating, and lubricating the bearing during hot-fitting, improving the installation efficiency of the idler roller.

[0007] Furthermore, each of the outer surfaces of the extrusion block has a notch on the side near the middle of the roller, and the inner end of the limiting ball is in contact with the inner wall of the adjacent notch. The connecting shaft and the roller can be disassembled and assembled by squeezing the limiting ball through the inner wall of the notch.

[0008] Furthermore, the limiting component includes a cross slot and inserts. The cross slots are respectively opened in the middle of the front and rear sides of the roller. The inserts are all set in the middle of the outer surface of the connecting shaft. The four vertically adjacent inserts are arranged in a cross shape with the axis of the connecting shaft as the center. The outer surface of the inserts is inserted into the inner wall of the vertically adjacent cross slot, providing limiting and guiding functions for the connecting shaft.

[0009] Furthermore, the limiting assembly also includes a connecting frame, inserts, and insertion holes. The insertion holes are respectively opened on the front and rear sides of the roller. The inserts are all inserted into the interior of the insertion holes. A connecting frame is provided on the outer end of each of the four vertically adjacent inserts. The inner wall of the connecting frame is inserted into the outer surface of the vertically adjacent insert, which further improves the connection strength between the connecting shaft and the roller.

[0010] Furthermore, the disassembly and assembly mechanism also includes lead screws and knobs. The lead screws are rotatably connected to the inner middle of the connecting shaft, and the inner middle of the extrusion block is threadedly connected to the outer surface of the vertically adjacent lead screw. The knobs are all located at the outer end of the lead screw, providing a driving effect for the disassembly and assembly of the connecting shaft and the roller.

[0011] Furthermore, it also includes rollers, all of which are rotatably connected to the inside of the connecting shaft on the side away from the center of the roller. The four vertically adjacent rollers are arranged in a cross shape with the axis of the connecting shaft as the center. The side of the rollers closest to the center of the roller is exposed outside the connecting shaft, reducing the contact area between the connecting shaft and the surface of the external bearing seat.

[0012] Furthermore, it also includes sockets, all of which are located on the outer end of the connecting shaft. The four vertically adjacent sockets are arranged in a cross shape with the axis of the connecting shaft as the center. The vertically adjacent sockets and rollers are arranged in a ring-shaped staggered arrangement with the axis of the connecting shaft as the center, which facilitates the quick connection between the external drive device and the connecting shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This easy-to-install lightweight and wear-resistant idler roller has the following advantages:

[0014] The roller and connecting shaft can be quickly disassembled and assembled by the compression block pressing the limiting ball in conjunction with the limiting block and connecting frame. The detachable connecting shaft can be cold-fitted with the bearing, without opening the bearing. This avoids the cumbersome steps of removing, cleaning, heating and lubricating the bearing in the traditional hot-fitting method, thus improving the installation efficiency of the idler roller. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the disassembly and assembly mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting shaft of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting groove of this utility model.

[0019] In the diagram: 1 Roller, 2 Graphene Bushing, 3 Mounting Groove, 4 Disassembly and Assembly Mechanism, 41 Connecting Shaft, 42 Extrusion Block, 43 Limiting Ball, 44 Limiting Groove, 45 Limiting Assembly, 451 Cross Slot, 452 Insert Block, 453 Connecting Frame, 454 Insert Post, 455 Insert Hole, 46 Lead Screw, 47 Knob, 5 Roller, 6 Socket. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This embodiment provides a technical solution: a lightweight and wear-resistant idler roller that is easy to install, including a roller 1 and a disassembly and assembly mechanism 4;

[0022] Roller 1: A graphene bushing 2 is fixedly fitted in the middle of its outer surface. The graphene bushing 2 is made of ultra-high graphene fiber. The strength of ultra-high graphene fiber far exceeds that of traditional fiber materials, and even exceeds that of steel. It has excellent wear resistance, self-lubrication, corrosion resistance and impact resistance. It can maintain stable performance in extreme environments. The roller 1 has mounting grooves 3 in the middle of the front and rear sides.

[0023] Disassembly / assembly mechanism 4: It includes a connecting shaft 41, an extrusion block 42, a limiting ball 43, a limiting groove 44, and a limiting assembly 45. The connecting shaft 41 is located inside the mounting groove 3. The extrusion blocks 42 are slidably connected to the inside of the connecting shaft 41 near the middle of the roller 1. The limiting balls 43 are respectively located at the upper and lower ends of the outer surface of the connecting shaft 41 near the middle of the roller 1, and each limiting ball 43 is fitted with an extrusion block 42. The limiting grooves 44 are respectively opened at the upper and lower ends of the inner wall of the mounting groove 3. The outer ends of the limiting balls 43 are fitted with the inner walls of the laterally adjacent limiting grooves 44, providing a basis for disassembly / assembly of the connecting shaft 41 and the roller 1. A notch is provided on the outer surface of the extrusion block 42 near the middle of the roller 1, and the inner ends of the limiting balls 43 are fitted with the inner walls of the laterally adjacent notches. The inner wall is fitted, and the side of the notch away from the middle of the roller 1 has a chamfer. When the two extrusion blocks 42 move inward, the inclined chamfer presses the limiting ball 43 outward, so that the limiting ball 43 fills the limiting groove 44, preventing the connecting shaft 41 from moving. When the two extrusion blocks 42 move outward, the chamfer leaves the surface of the limiting ball 43, and the limiting ball 43 loses its extrusion effect. The distance between the bottom wall of the notch and the surface of the extrusion block 42 is greater than the depth of the limiting groove 44, so when connecting the shaft 41, the limiting ball 43 can be completely retracted into the connecting shaft 41, realizing the rapid separation of the connecting shaft 41 from the roller 1. The connection shaft 41 and roller 1 can be disassembled and assembled by pressing the limiting ball 43 through the inner wall of the notch. The limiting component 45 is set inside the roller 1 and between the connecting shaft 41. The 5 includes a cross-shaped slot 451 and insert blocks 452. The cross-shaped slots 451 are respectively opened in the middle of the front and rear sides of the roller 1. The insert blocks 452 are all set in the middle of the outer surface of the connecting shaft 41. The four vertically adjacent insert blocks 452 are arranged in a cross shape with the axis of the connecting shaft 41 as the center. The outer surface of the insert blocks 452 is inserted into the inner wall of the vertically adjacent cross-shaped slots 451, providing a limiting and guiding function for the connecting shaft 41. The limiting component 45 also includes a connecting frame 453, insert posts 454 and insertion holes 455. The insertion holes 455 are respectively opened in the front and rear sides of the roller 1. The insert posts 454 are all inserted into the interior of the insertion holes 455. The outer end of the four vertically adjacent insert posts 454 is provided with a connecting frame 453. The inner wall of the connecting frame 453 is inserted into the inner wall of the vertically adjacent insert blocks 454. The outer surface of the 2 is inserted, which further improves the connection strength between the connecting shaft 41 and the roller 1. The disassembly and assembly mechanism 4 also includes a lead screw 46 and a knob 47. The lead screw 46 is rotatably connected to the inner middle of the connecting shaft 41. The inner middle of the pressing block 42 is threaded to the outer surface of the vertically adjacent lead screw 46. The knob 47 is located at the outer end of the lead screw 46, providing a driving effect for disassembly and assembly of the connecting shaft 41 and the roller 1. It also includes rollers 5. The rollers 5 are rotatably connected to the inner side of the connecting shaft 41 away from the middle of the roller 1. The four vertically adjacent rollers 5 are arranged in a cross shape with the axis of the connecting shaft 41 as the center. The side of the roller 5 closest to the middle of the roller 1 is exposed outside the connecting shaft 41. When the connecting shaft 41 is connected to the external bearing, the connecting shaft 41 passes through the external bearing.By reducing the contact area between the connecting shaft 41 and the external bearing housing by having roller 5 in contact with the surface of the external bearing housing, the contact area between the connecting shaft 41 and the external bearing housing is reduced. The system also includes inserts 6, all located on the outer end of the connecting shaft 41. Four vertically adjacent inserts 6 are arranged in a cross shape with the axis of the connecting shaft 41 as the center. Vertically adjacent inserts 6 and rollers 5 are arranged in a staggered annular shape with the axis of the connecting shaft 41 as the center. An external drive device can quickly connect to the connecting shaft 41 via an output shaft with a protrusion matching the insert 6, thereby achieving stable drive of the idler roller. This facilitates quick connection between the external drive device and the connecting shaft 41. The system features a quick-release idler roller; the connecting shaft 41 and roller 1 are detachable. When installing the idler roller, the bearing can be installed without removing it. The connecting shaft 41 and bearing are cold-fitted with an interference fit, and then the connecting shaft 41 and roller 1 are quickly fixed. This avoids the cumbersome steps of removing, cleaning, heating, and lubricating the bearing during hot-fitting, improving the installation efficiency of the idler roller.

[0024] The working principle of the lightweight, wear-resistant idler roller provided by this utility model is as follows: When installing the idler roller, the connecting shaft 41 is first placed in an external liquid nitrogen cooling device for cooling. Then, the connecting frame 453 is connected to the roller 1 through the insert post 454 and the insertion hole 455. An external lifting device is used to align the mounting groove 3 of the roller 1 with the inner ring of the external bearing, so that the axis of the mounting groove 3 coincides with the bearing of the external bearing. After the connecting shaft 41 has cooled down, the diameter of the connecting shaft 41 will decrease due to thermal expansion and contraction. At this time, the diameter of the connecting shaft 41 is smaller than the inner ring diameter of the external bearing. The two connecting shafts 41 are simultaneously passed through the inner rings of the corresponding external bearings, so that the roller 5 contacts the outer surface of the external bearing seat. During this process, the insert block 452 passes through the inner ring of the external bearing and is simultaneously inserted into the connecting frame 453 and the cross slot 451. The limiting groove 44 and the limiting ball 43 are vertically adjacent. When the temperature of the connecting shaft 41 rises to room temperature, the connecting shaft 41 will return to its original shape due to thermal expansion and contraction. The diameter is adjusted so that the connecting shaft 41 and the inner ring of the external bearing form an interference fit. The connecting shaft 41 is connected to the external bearing. Then, the knob 47 is turned to drive the lead screw 46 to rotate. The two extrusion blocks 42 move inward synchronously. The inclined surface on the notch of the extrusion block 42 extrudes the corresponding limiting ball 43, causing the limiting ball 43 to move outward until the limiting ball 43 fills the limiting groove 44. At this time, the roller 1 is connected to the connecting shaft 41, and the roller installation is completed. When in use, the roller can be stably driven by inserting the external drive device into the insertion port 6. When it is necessary to remove the roller and replace it with a new roller, simply remove the entire external bearing seat, then reverse the knob 47 to drive the lead screw 46 to reverse, causing the two extrusion blocks 42 to move outward synchronously. The notches on the extrusion blocks 42 also move synchronously, and the inner end of the limiting ball 43 loses its limiting effect. When the connecting shaft 41 is pulled outward, the limiting ball 43 retracts into the connecting shaft 41. The connecting shaft 41 can be quickly separated from the roller 1, and then a new roller 1 can be replaced.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lightweight, wear-resistant idler that is easy to install, characterized by: It includes roller (1) and dismounting mechanism (4); Roller (1): its outer surface middle part is fixed with graphene bushing (2), the front and rear sides of roller (1) are provided with installation groove (3) in the middle part; Dismounting mechanism (4): it includes connecting shaft (41), extrusion block (42), limiting ball (43), limiting groove (44) and limiting assembly (45), the connecting shaft (41) is arranged in the installation groove (3), the extrusion block (42) is slidably connected to the side of the connecting shaft (41) near the middle part of the roller (1), the limiting ball (43) is arranged on the upper and lower ends of the side of the connecting shaft (41) near the middle part of the roller (1), the limiting ball (43) is matched with the extrusion block (42), the limiting groove (44) is arranged on the inner wall of the installation groove (3), the outer side of the limiting ball (43) is matched with the inner wall of the limiting groove (44), and the limiting assembly (45) is arranged between the connecting shaft (41) and the roller (1).

2. A lightweight, wear-resistant carrier roller for easy installation according to claim 1, characterized in that The side of the extrusion block (42) near the middle part of the roller (1) is provided with a notch, and the inner side of the limiting ball (43) is matched with the inner wall of the notch.

3. A lightweight, wear-resistant carrier roller for easy installation according to claim 1, characterized in that: The limiting assembly (45) includes cross slot (451) and plug (452), the cross slot (451) is arranged on the front and rear sides of the roller (1), the plug (452) is arranged on the middle part of the outer surface of the connecting shaft (41), and the four plugs (452) are distributed in cross shape with the axis of the connecting shaft (41) as the center, and the outer surface of the plug (452) is inserted into the inner wall of the vertical adjacent cross slot (451).

4. A lightweight, wear-resistant carrier roller for easy installation according to claim 3, characterized in that: The limiting assembly (45) further includes connecting frame (453), plug column (454) and plug hole (455), the plug hole (455) is arranged on the front and rear sides of the roller (1), the plug column (454) is inserted into the inner hole of the plug hole (455), and the outer side of the four plug columns (454) is provided with a connecting frame (453), and the inner wall of the connecting frame (453) is inserted into the outer surface of the vertical adjacent plug (452).

5. A lightweight, wear-resistant carrier roller for easy installation according to claim 1, characterized in that: The dismounting mechanism (4) further includes lead screw (46) and knob (47), the lead screw (46) is rotatably connected to the inner middle of the connecting shaft (41), the inner middle of the extrusion block (42) is threadedly connected with the outer surface of the vertical adjacent lead screw (46), and the knob (47) is arranged on the outer side of the lead screw (46).

6. A lightweight, wear-resistant carrier roller for easy installation according to claim 1, characterized in that: It further includes roller (5), the roller (5) is rotatably connected to the side of the connecting shaft (41) away from the middle part of the roller (1), the four rollers (5) are distributed in cross shape with the axis of the connecting shaft (41) as the center, and the side of the roller (5) near the middle part of the roller (1) is exposed outside the connecting shaft (41).

7. A lightweight, wear-resistant carrier roller for easy installation according to claim 6, characterized in that Also included are sockets (6), each of which is formed on the outer end of the connecting shaft (41), and four vertically adjacent sockets (6) are distributed in a cross shape with the axis of the connecting shaft (41) as the center, and the vertically adjacent sockets (6) and the rollers (5) are distributed in an annular staggered manner with the axis of the connecting shaft (41) as the center.

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