Adjustable wear-type idler

Abstract

The utility model discloses an adjustable wear -resisting type carrier roller, including bottom plate, mounting bracket, main carrier roller and side carrier roller. The utility model through being equipped with the adjusting assembly in the inner end of the chassis, through the rotation adjustment of adjusting cylinder, makes the screw rod can drive the adjusting frame to carry out the lift regulation, and then carries out the angle adjustment to the side carrier roller, can adapt to the conveying demand of different width conveyer belt and different kinds of materials, reduces the material spilling and the deviation problem of conveyer belt, through being fixed with the composite wear -resistant layer on the outer circumferential surface of main carrier roller and side carrier roller, not only has good elasticity and tenacity, can buffer material impact, and promotes the thermal conductivity and wear resistance of base layer, avoids the material aging caused by friction heat, enhances the layer hard and base layer combination closely, forms full -enclosed formula cover, improves carrier roller wear -resistant life, reduces maintenance cost greatly, is equipped with the antiskid stripe on the outer surface of composite wear -resistant layer, can increase the friction between carrier roller and conveyer belt significantly, promotes the conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of idler roller technology, specifically to an adjustable wear-resistant idler roller. Background Technology

[0002] The function of idlers is to support the conveyor belt and the weight of the materials. Idler operation must be flexible and reliable to reduce the friction between the conveyor belt and the idlers. They play a key role in the lifespan of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor.

[0003] In the field of conveying equipment, idlers, as core components that support the weight of the conveyor belt and materials and reduce belt friction, directly affect the operational stability and service life of the conveying system. Currently, idlers on the market mainly suffer from the following technical challenges:

[0004] 1. Traditional idlers are mostly fixed installation structures. The tilt angle of the side idlers cannot be flexibly adjusted according to the width of the conveyor belt, the type of material (such as granular or blocky) and the conveying volume. This can easily lead to material deviation and spillage. Especially when conveying non-uniformly distributed materials, it is necessary to stop the machine and replace idler components with different angles, which is cumbersome and affects the conveying efficiency.

[0005] 2. Conventional idler rollers are mostly made of a single metal material or ordinary rubber coating. After long-term friction with the conveyor belt and materials, they are prone to wear and cracking, resulting in high replacement frequency and increased equipment maintenance costs. Although some wear-resistant idler rollers use ceramic coating, the coating has low bonding strength with the substrate and is easy to fall off, so it cannot achieve long-term wear protection.

[0006] 3. When conveying wet or sticky materials, relative slippage can easily occur between the surface of the idler roller and the conveyor belt. This not only reduces the conveying efficiency, but also accelerates the aging of the idler roller and the conveyor belt due to frictional heat, and may even cause safety hazards such as conveyor belt deviation and tearing. Utility Model Content

[0007] The purpose of this invention is to provide an adjustable wear-resistant idler roller to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustable wear-resistant idler roller, comprising a base plate, a mounting frame, a main idler roller, and side idler rollers. The mounting frame is welded to the upper center of the base plate, and the main idler roller is rotatably connected to the inner side of the mounting frame. Both sides of the upper end of the base plate are rotatably connected to a base frame. An adjustment component is installed at the inner end of the base frame. A connecting column is welded to the top of the adjustment component, and the top of the connecting column is embedded in the connecting frame and rotatably connected. The inner end of the connecting frame is rotatably connected to the side idler rollers through bearings.

[0009] Composite wear-resistant sleeves are fixedly fitted on the outer surfaces of both the main idler roller and the side idler roller, and anti-slip stripes are arranged on the composite wear-resistant sleeves.

[0010] In a preferred embodiment of this utility model, the adjustment assembly includes a base column rotatably mounted on the bottom of the inner side of the base frame, an adjustment cylinder welded and fixed at the top of the base column, and a threaded screw rod embedded inside the adjustment cylinder, with the top of the screw rod welded to a connecting column.

[0011] As a preferred embodiment of this utility model, an adjustment frame is fixed to the outside of the connecting column. The adjustment frame is a rectangular frame and is slidably embedded in the guide groove inside the base frame.

[0012] In a preferred embodiment of this invention, the adjusting assembly further includes a locking nut threaded onto the screw, with the bottom surface of the locking nut tightly fitted to the top surface of the adjusting cylinder, for fixing the screw and the adjusting cylinder.

[0013] In a preferred embodiment of this invention, the two side rollers are symmetrically distributed about the axis of the main roller, and the two side rollers have the same inclination angle. The axial length of the main roller is equal to the axial length of the two side rollers.

[0014] As a preferred embodiment of the present invention, the composite wear-resistant sleeve includes a base layer fixedly sleeved on the outer circumferential surface of the main idler roller and the side idler roller, and a reinforcing layer is installed on the outer circumferential surface of the base layer.

[0015] In a preferred embodiment of this utility model, the substrate layer is made of polyurethane and has an axial thickness of 7 mm, the reinforcing layer is made of ceramic particles with a particle size of 0.8-2 mm, and both the substrate layer and the reinforcing layer form a full-wrap coverage of the outer circumference of the main idler roller and the side idler roller.

[0016] As a preferred embodiment of this invention, powdered graphene is added to the raw material components of the substrate layer. The graphene has a particle size of 20-100 nm and a mass fraction of 0.5-1.5 wt% in the substrate layer raw material, which is used to improve the thermal conductivity and wear resistance of the substrate layer.

[0017] As a preferred embodiment of this invention, the anti-slip stripes are in the form of a continuously connected inclined triangular structure, and the depth of the anti-slip stripes is 0.5mm.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, an adjustment component is provided at the inner end of the base frame. By rotating the adjustment cylinder, the screw can drive the adjustment frame to adjust its height, thereby adjusting the angle of the side idler rollers. This can adapt to the conveying needs of conveyor belts of different widths and different types of materials, reducing material spillage and conveyor belt deviation.

[0020] 2. In this utility model, a composite wear-resistant layer is fixed on the outer circumferential surface of both the main idler roller and the side idler roller. This layer not only has good elasticity and toughness, which can buffer the impact of materials, but also the added graphene powder can improve the thermal conductivity and wear resistance of the matrix layer, avoiding material aging caused by frictional heat. The ceramic particle reinforcement layer has high hardness and strong wear resistance, and is tightly bonded to the matrix layer to form a full-coverage, which improves the wear life of the idler roller and significantly reduces maintenance costs.

[0021] 3. In this utility model, anti-slip stripes are provided on the outer surface of the composite wear-resistant layer, which can significantly increase the friction between the idler and the conveyor belt. Especially when conveying wet or sticky materials, it can effectively prevent relative slippage, improve conveying efficiency, and reduce the aging problem of idler and conveyor belt caused by slippage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front view of the connection structure between the main idler roller and the side idler roller of this utility model;

[0024] Figure 3 This is an exploded view of the base plate, base frame, and adjustment frame of this utility model;

[0025] Figure 4 This is a right view of the internal connection structure of the base frame and adjustment assembly of this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the idler roller and the composite wear-resistant sleeve of this utility model.

[0027] In the diagram: 1. Base plate; 2. Mounting frame; 3. Main idler roller; 4. Side idler roller; 5. Composite wear-resistant sleeve; 51. Matrix layer; 52. Reinforcing layer; 6. Connecting frame; 7. Base frame; 8. Adjusting assembly; 81. Base column; 82. Adjusting cylinder; 83. Locking nut; 84. Screw; 85. Adjusting frame; 9. Connecting column. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0031] Example 1

[0032] like Figure 1-4 As shown, this utility model provides a technical solution: including a base plate 1, a mounting frame 2, a main idler roller 3 and a side idler roller 4. The mounting frame 2 is welded to the middle of the upper end of the base plate 1. The main idler roller 3 is rotatably connected to the inner side of the mounting frame 2. Both sides of the upper end of the base plate 1 are rotatably connected to the base frame 7. An adjustment component 8 is installed at the inner end of the base frame 7. A connecting column 9 is welded to the top of the adjustment component 8. The top of the connecting column 9 is embedded in the connecting frame 6 and rotatably connected. The inner end of the connecting frame 6 is rotatably connected to the side idler roller 4 through a bearing.

[0033] The adjustment assembly 8 includes a base column 81 rotatably mounted on the bottom of the inner side of the base frame 7. An adjustment cylinder 82 is welded and fixed to the top of the base column 81. A threaded screw 84 is embedded inside the adjustment cylinder 82, and the top of the screw 84 is welded to the connecting column 9. The tilt of the side roller can be adjusted according to the specifications of the goods.

[0034] An adjustment frame 85 is fixed to the outside of the connecting column 9. The adjustment frame 85 is a rectangular frame and is slidably embedded in the guide groove in the base frame 7, which increases the stability of the connection between the adjustment frame and the base frame.

[0035] The adjusting assembly 8 also includes a locking nut 83 threaded onto the screw 84, with the bottom end face of the locking nut 83 tightly fitted to the top end face of the adjusting cylinder 82, for fixing the screw 84 and the adjusting cylinder 82. The screw is locked by the tight fit between the locking nut and the adjusting cylinder.

[0036] The two side rollers 4 are symmetrically distributed about the axis of the main roller 3, and the two side rollers 4 have the same tilt angle. The axial length of the main roller 3 is equal to the axial length of the two side rollers 4, so as to avoid the goods from going off track during transportation.

[0037] In this embodiment, an adjustment component is provided at the inner end of the base frame. By rotating the adjustment cylinder, the screw can drive the adjustment frame to adjust its height, thereby adjusting the angle of the side idler rollers. This can adapt to the conveying needs of conveyor belts of different widths and different types of materials, reducing material spillage and conveyor belt deviation.

[0038] Example 2

[0039] like Figure 1 , 2 As shown in Figure 5, this utility model provides a technical solution: including a base plate 1, a mounting frame 2, a main idler roller 3 and a side idler roller 4, the outer surfaces of the main idler roller 3 and the side idler roller 4 are all fixedly fitted with composite wear-resistant sleeves 5, and anti-slip stripes are arranged on the composite wear-resistant sleeves 5.

[0040] The composite wear-resistant sleeve 5 includes a base layer 51 fixedly sleeved on the outer circumferential surface of the main idler roller 3 and the side idler roller 4, and a reinforcing layer 52 is installed on the outer circumferential surface of the base layer 51.

[0041] The substrate layer 51 is made of polyurethane and has an axial thickness of 7mm. The reinforcing layer 52 is made of ceramic particles with a particle size of 0.8-2mm. Both the substrate layer 51 and the reinforcing layer 52 form a full-wrap coverage on the outer circumference of the main idler roller 3 and the side idler roller 4, which has good elasticity and toughness and can buffer the impact of materials.

[0042] Powdered graphene is added to the raw material components of the substrate layer 51. The graphene has a particle size of 20-100nm and the mass fraction of graphene in the raw material of the substrate layer 51 is 0.5-1.5wt%, which is used to improve the thermal conductivity and wear resistance of the substrate layer 51.

[0043] The anti-slip stripes are in the form of continuous, inclined triangular structures, and the depth of the anti-slip stripes is 0.5mm.

[0044] In this embodiment, a composite wear-resistant layer is fixed on the outer circumferential surface of both the main idler and the side idler. This layer not only has good elasticity and toughness, which can buffer the impact of materials, but also the added graphene powder can improve the thermal conductivity and wear resistance of the matrix layer, avoiding material aging caused by frictional heat. The ceramic particle reinforcement layer has high hardness and strong wear resistance, and it is tightly bonded to the matrix layer to form a full-coverage, which improves the wear life of the idler and significantly reduces maintenance costs. Anti-slip stripes are provided on the outer surface of the composite wear-resistant layer, which can significantly increase the friction between the idler and the conveyor belt. Especially when conveying wet and sticky materials, it can effectively prevent relative slippage, improve conveying efficiency, and reduce the aging problems of the idler and conveyor belt caused by slippage.

[0045] Working principle:

[0046] When using,

[0047] 1. Installation Phase

[0048] The base plate 1 is fixed to the preset position of the conveyor frame with bolts to ensure that the base plate 1 is placed horizontally, providing a stable foundation for the subsequent installation of components;

[0049] The two ends of the main idler roller 3 are connected to the inner side of the mounting frame 2 through bearings. Manually rotate the main idler roller 3 to ensure that it rotates flexibly without any jamming.

[0050] The inner end of the side roller 4 is rotated and installed on the outside of the mounting frame 2. Then, the outer end of the side roller 4 is connected to the inner side of the connecting frame 6 through the bearing. The connecting frame 6 is then fitted and fitted to the top of the connecting column 9 to ensure that the connecting column 9 can rotate flexibly within the connecting frame 6, thus completing the initial assembly of the side roller 4.

[0051] 2. Angle Adjustment Stage

[0052] Use a wrench to loosen the locking nut 83 fitted on the screw 84, so that the locking nut 83 is separated from the top surface of the adjusting cylinder 82, thereby releasing the lock on the screw 84;

[0053] Depending on the width of the conveyor belt and the type of material, manually turn the adjusting cylinder 82. The screw 84 moves axially through the threaded engagement with the adjusting cylinder 82, driving the connecting column 9 and the connecting frame 6 to rise and fall synchronously. At this time, the adjusting frame 85 slides along the guide groove in the base frame 7, restricting the circumferential rotation of the screw 84, ensuring that the connecting frame 6 only drives the side roller 4 to deflect around the rotation connection point between the base frame 7 and the base plate 1, thereby achieving the tilt angle adjustment.

[0054] When the tilt angle of the side roller 4 reaches the preset value, stop turning the adjusting cylinder 82, turn the locking nut 83 in the opposite direction, so that the bottom end face of the locking nut 83 is tightly attached to the top end face of the adjusting cylinder 82, and the screw 84 is reliably fixed to the adjusting cylinder 82, thus completing the angle adjustment.

[0055] 3. Conveying Operation Stage

[0056] The conveyor belt starts running, and the main idler roller 3 rotates around its own axis under the drive of the conveyor belt, supporting the middle of the conveyor belt and the weight of the material; the side idler rollers 4 rotate synchronously under the drive of the conveyor belt, supporting both sides of the conveyor belt and preventing the conveyor belt from running off-center.

[0057] The ceramic particle reinforcement layer 52 of the composite wear-resistant sleeve 5 contacts the surface of the conveyor belt, bears friction and wear, and avoids wear on the main idler roller 3 and the side idler roller 4. At the same time, the inclined triangular anti-slip stripes on the outer surface of the composite wear-resistant sleeve 5 are closely attached to the conveyor belt, increasing friction and preventing relative sliding between the conveyor belt and the idler roller.

[0058] During the conveying process, the heat generated by friction is quickly conducted to the air through the graphene powder in the matrix layer 51 of the composite wear-resistant sleeve 5, which avoids excessive local temperature causing aging of the idler rollers and conveyor belt and extends their service life.

[0059] 4. Maintenance Phase

[0060] Regularly observe the wear condition of the composite wear-resistant sleeve 5. If the ceramic particle reinforcement layer 52 shows local wear, it can continue to be used; if it wears down to the base layer 51 or cracks appear, the composite wear-resistant sleeve 5 needs to be replaced.

[0061] If the conveyor belt is found to be misaligned after long-term use, the operation of the "angle adjustment stage" can be repeated: loosen the locking nut 83, fine-tune the screw 84, correct the tilt angle of the side idler roller 4, and then lock it again.

[0062] If the bearings of the main idler roller 3 or the side idler roller 4 jam or make abnormal noise, the mounting brackets 2 and 6 can be disassembled, the bearings replaced, and then reassembled to ensure that the idler rollers rotate freely.

[0063] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable wear-resistant idler roller, comprising a base plate (1), a mounting frame (2), a main idler roller (3), and side idler rollers (4), characterized in that: A mounting frame (2) is welded to the middle of the upper end of the base plate (1). The main roller (3) is rotatably connected to the inner side of the mounting frame (2). Both sides of the upper end of the base plate (1) are rotatably connected to the base frame (7). An adjustment component (8) is installed at the inner end of the base frame (7). A connecting column (9) is welded to the top of the adjustment component (8). The top of the connecting column (9) is embedded in the connecting frame (6) and rotatably connected. The inner end of the connecting frame (6) is rotatably connected to the side roller (4) through a bearing. Composite wear-resistant sleeves (5) are fixedly fitted on the outer surfaces of the main idler roller (3) and the side idler roller (4), and anti-slip stripes are arranged on the composite wear-resistant sleeves (5).

2. The adjustable wear-resistant idler roller according to claim 1, characterized in that: The adjustment assembly (8) includes a base column (81) rotatably mounted on the bottom of the inner side of the base frame (7), an adjustment cylinder (82) is welded and fixed at the top of the base column (81), a threaded screw (84) is embedded inside the adjustment cylinder (82), and the top of the screw (84) is welded to the connecting column (9).

3. The adjustable wear-resistant idler roller according to claim 2, characterized in that: An adjustment frame (85) is fixed to the outside of the connecting column (9). The adjustment frame (85) is a rectangular frame and is slidably embedded in the guide groove in the base frame (7).

4. The adjustable wear-resistant idler roller according to claim 2, characterized in that: The adjustment assembly (8) also includes a locking nut (83) threaded onto the screw (84), and the bottom end face of the locking nut (83) is tightly fitted with the top end face of the adjustment cylinder (82) to fix the screw (84) and the adjustment cylinder (82).

5. The adjustable wear-resistant idler roller according to claim 1, characterized in that: The two side rollers (4) are symmetrically distributed about the axis of the main roller (3), and the two side rollers (4) have the same tilt angle. The axial length of the main roller (3) is equal to the axial length of the two side rollers (4).

6. The adjustable wear-resistant idler roller according to claim 1, characterized in that: The composite wear-resistant sleeve (5) includes a base layer (51) fixedly sleeved on the outer circumferential surface of the main idler roller (3) and the side idler roller (4), and a reinforcing layer (52) is installed on the outer circumferential surface of the base layer (51).

7. The adjustable wear-resistant idler roller according to claim 6, characterized in that: The substrate layer (51) is made of polyurethane and has an axial thickness of 7 mm. The reinforcing layer (52) is made of ceramic particles with a particle size of 0.8-2 mm. Both the substrate layer (51) and the reinforcing layer (52) form a full-wrap coverage on the outer circumference of the main roller (3) and the side roller (4).

8. The adjustable wear-resistant idler roller according to claim 6, characterized in that: The substrate layer (51) contains powdered graphene with a particle size of 20-100 nm and a mass fraction of 0.5-1.5 wt% in the substrate layer (51) raw material, which is used to improve the thermal conductivity and wear resistance of the substrate layer (51).

9. The adjustable wear-resistant idler roller according to claim 1, characterized in that: The anti-slip stripes are in the form of a continuous, inclined triangular structure, and the depth of the anti-slip stripes is 0.5mm.

Images