A belt conveyor idler replacement aid

Abstract

The utility model relates to the technical field of adhesive tape transportation, and specifically puts forward a kind of adhesive tape conveyor carrier roller replacement auxiliary device, including shear jack, the base of shear jack is U-shaped base;The top support of shear jack is spherical top hat;Remote rod end of the screw rod of shear jack is equipped with hexagon nut;U-shaped base is clamped on the fixed seat;Wherein, the fixed seat is horizontally arranged on the carrier roller support beam of conveyor.U-shaped base and the fixed seat fixed horizontally on carrier roller support beam are quickly clamped, and after being locked by screw thread, form integral force bearing structure, can withstand the lateral impact force when belt unloading.Hexagon nut adapts electric wrench, and the electric torque output of electric wrench is evenly lifted up the belt on conveyor carrier roller, for replacing carrier roller.Solve the problem of artificial crowbar or manual jack in the replacement of conveyor carrier roller, time-consuming and laborious, and difficult to position, low efficiency, high risk, improve the jacking speed.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveying, and specifically to an auxiliary device for changing idler rollers of a belt conveyor. Background Technology

[0002] A belt conveyor (also known as a belt conveyor or belt conveyor) is a continuous material transport device widely used in industries such as mining, ports, power, metallurgy, and building materials. It consists of a conveyor belt, drive unit, idlers, and tensioning device. The conveyor belt is the core component that carries and transports materials, and is commonly made of materials such as rubber, PVC, PU, ​​or steel. The drive unit typically includes a motor, reducer, coupling, and drive drum to provide power. Idler rollers support the conveyor belt and materials, and are classified as trough type (carrying section) and flat type (return section). The tensioning device maintains appropriate tension on the conveyor belt (such as counterweight, screw, or hydraulic type). Replacing the idlers of a belt conveyor is an important part of routine maintenance. Correct operation ensures stable equipment operation and extends service life. Whether disassembling old idlers or installing new ones, the belt must be lifted to separate the belt from the idlers before further disassembly or installation.

[0003] Currently, the main tool used is a pry bar. Lifting the conveyor belt with a pry bar requires close-range manual force. If the belt suddenly slips or the pry bar slips, it can easily cause accidents such as being crushed or having hands trapped. Furthermore, heavy conveyor belts (such as those used in mining) are heavy, limiting the height that can be lifted at one time, and the support is unstable, potentially causing the belt to sway or sink. The range of motion is severely limited underground or in confined spaces. All of these factors affect the replacement of idler rollers.

[0004] Therefore, it is necessary to design an auxiliary device for changing the idler rollers of a belt conveyor. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an auxiliary device for replacing conveyor rollers. By using a scissor jack, it solves the problems of time-consuming, labor-intensive, difficult positioning, low efficiency, and high risk associated with manually prying or using manual jacks when replacing conveyor rollers.

[0006] To achieve the above and other related objectives, this utility model proposes an auxiliary device for replacing idler rollers of a belt conveyor, including a scissor jack.

[0007] The base of the scissor jack is a U-shaped base;

[0008] The top support of the scissor jack is a spherical cap;

[0009] The remote end of the screw of the scissor jack is equipped with a hexagonal nut;

[0010] The U-shaped base is snapped onto the fixed seat;

[0011] The fixed seat is horizontally mounted on the idler support beam of the conveyor.

[0012] In one embodiment of this utility model, the spherical cap is a hemisphere made of rubber, and a connecting plate is provided at the lower end of the hemisphere. The connecting plate is threadedly connected to the top of the scissor jack.

[0013] In one embodiment of this utility model, the fixing seat is rod-shaped and arranged parallel to the length direction of the roller bracket.

[0014] In one embodiment of this utility model, the U-shaped base is fitted onto the fixed seat and connected by bolts.

[0015] In one embodiment of the present invention, an electric wrench is also included, wherein the wrench head of the electric wrench is provided with a mating socket, and the mating socket is engaged with the hexagonal nut.

[0016] In one embodiment of this utility model, a pressure sensor is provided on the electric wrench near the mating port.

[0017] In one embodiment of this utility model, a laser indicator is also included, which is disposed on the fixed base and used for aligning the fixed base and the roller support beam.

[0018] In one embodiment of the present invention, a top rod is further included. The top rod is arc-shaped and located at the top of the spherical cap for supporting the conveyor belt.

[0019] The beneficial technical effects of this utility model include at least the following:

[0020] This utility model proposes an auxiliary device for replacing conveyor rollers. The U-shaped base quickly engages with a fixed seat horizontally mounted on the roller support beam, solving the problem of unstable jack installation in confined spaces and preventing slippage or displacement during operation. After threaded tightening, an integral load-bearing structure is formed, capable of withstanding the lateral impact force during belt unloading. The hexagonal nut is compatible with an electric wrench, increasing the lifting speed by more than double compared to traditional manual cranks. The electric torque output is uniform, avoiding thread jamming caused by uneven manual force. This device solves the problems of time-consuming, labor-intensive, difficult-to-position, inefficient, and high-risk methods associated with manual prying or manual jacks during conveyor roller replacement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an auxiliary device for changing idler rollers of a belt conveyor in one embodiment of the present invention.

[0023] Labeling: 1-Idler support beam; 2-Fixed seat; 3-U-shaped base; 4-Top rod; 5-Scissor arm; 6-Spherical cap; 7-Screw; 8-Hexagonal nut. Detailed Implementation

[0024] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0025] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show the components related to this utility model and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0026] It should be noted that scissor jacks are a type of mechanical jack primarily used for light lifting operations such as car repair and tire changing. They are simple in structure and easy to carry, but their load-bearing capacity is relatively low, typically 1-3 tons. Their core component includes the scissor arms 5, which consist of two pairs of intersecting metal arms connected by a pivot, forming an "X" shape. These arms are the main load-bearing and lifting components. Lifting and lowering are achieved by extending and retracting the arms. The screw 7 is a threaded rod passing through the center of the scissor arms, which opens or closes when rotated. It usually has a self-locking function to prevent heavy objects from accidentally falling. The crank / handle is a detachable handle inserted into the end of the screw 7, which is manually rotated to drive the screw 7. Some models are designed to be foldable or retractable for easy storage.

[0027] Please see Figure 1As shown, in order to achieve the above-mentioned objectives and other related objectives, this utility model proposes an auxiliary device for replacing idler rollers of a belt conveyor, including a scissor jack and a fixed base 2. The base of the scissor jack is a U-shaped base 3; the top support of the scissor jack is a spherical top cap 6; the remote end of the screw 7 of the scissor jack is provided with a hexagonal nut 8; the U-shaped base 3 is snapped onto the fixed base 2; wherein, the fixed base 2 is horizontally set on the idler roller support beam 1 of the conveyor.

[0028] It should be noted that the U-shaped base 3 of this utility model quickly engages with the fixed seat 2, which is horizontally fixed on the idler support beam 1, solving the problem of unstable jack installation in narrow spaces and preventing side slippage or displacement during operation. After being tightened with bolts, it forms an integral load-bearing structure that can withstand the lateral impact force during belt unloading. The hexagonal nut 8 is compatible with an electric wrench, increasing the lifting speed by more than three times compared to a traditional manual crank. The electric torque output is uniform, avoiding thread jamming caused by uneven manual force. This solves the problems of time-consuming, labor-intensive, difficult-to-position, inefficient, and high-risk manual prying or manual jacking used in conveyor idler replacement.

[0029] In one embodiment of this utility model, the spherical cap 6 is a hemisphere made of rubber, and the lower end of the hemisphere is provided with a connecting plate, which is threadedly connected to the top of the scissor jack.

[0030] Understandably, the spherical top cap with 6 flexible contact belts prevents the metal top support from scratching the belt surface, making it especially suitable for high-value corrosion-resistant belts. The rubber material increases the coefficient of friction, preventing accidental belt displacement during the lifting process.

[0031] In one embodiment of this utility model, the fixing seat 2 is rod-shaped and arranged parallel to the length direction of the roller bracket.

[0032] Understandably, arranging the rod-shaped fixing seat 2 parallel to the length direction of the idler roller bracket can achieve rapid positioning, improve replacement efficiency, and reduce the risk of the device tipping over.

[0033] In one embodiment of this utility model, the U-shaped base 3 is fitted and secured to the fixed base 2 and connected by bolts. The installation position of the U-shaped base 3 can be moved on the fixed base 2 as needed for easy disassembly.

[0034] In one embodiment of this utility model, an electric wrench is also included. The wrench head of the electric wrench has a mating socket, which mates with a hexagonal nut 8. A pressure sensor is provided on the electric wrench near the mating socket.

[0035] Understandably, the electric wrench outputs a uniform electric torque, avoiding belt deformation or bracket damage caused by uneven force during operation. A pressure sensor is installed at the end of the electric wrench's drive shaft, near the mating port of the hexagonal nut 8, directly detecting the axial pressure during the rotation of the hexagonal nut 8, which is linearly related to the jacking force. A preset threshold force for roller removal, such as 5 tons, can be used, automatically cutting off the electric wrench's power upon reaching this threshold. An emergency stop can also be triggered if the pressure exceeds a safe value, such as 110% of the calibrated value, to prevent damage to the belt or bracket. The peak pressure of each lift is recorded and stored for maintenance analysis.

[0036] In one embodiment of this utility model, a laser pointer is also included. The laser pointer is disposed on the fixed base 2 and is used to align the fixed base 2 and the roller support beam 1.

[0037] It should be noted that the laser pointer can be activated to align the laser spot / crosshair with the preset mark position on the roller support beam 1. The fixing seat 2 can be moved until the laser mark is completely aligned with the edge of the roller support beam 1, and the bolts tightened to fix the fixing seat 2 in parallel. This significantly improves the alignment efficiency between the fixing seat 3 and the roller support beam 1, reducing manual adjustment time. It also avoids the risk of the jack tipping over during operation.

[0038] In one embodiment of the present invention, a top rod 4 is also included. The top rod 4 is arc-shaped and is located at the top of the spherical cap 6 for supporting the conveyor belt.

[0039] It should be noted that the dual protection provided by the spherical cap 6 and the arc-shaped lifting rod 4 prevents the jack from directly lifting the belt, which could easily cause slippage and damage. Furthermore, the arc-shaped lifting rod 4 increases the bearing area of ​​the belt, further enhancing the lifting effect of the jack.

[0040] In practice, a 60*200*3000mm wooden fixed base 2 is placed on the conveyor roller support beam 1. A specially made scissor jack is placed stably on the fixed base 2, ensuring that the specially made U-shaped base 3 of the scissor jack is stably installed and clamped onto the fixed base 2, with a φ20mm high-strength pin inserted. A rubber spherical cap 6 holds the conveyor belt against the conveyor belt. By applying force with an electric wrench, the screw 7 is rotated to lift the jack, supporting the conveyor belt and providing maintenance space for roller replacement, thus efficiently completing the roller replacement work. Its composition is relatively simple and compact, easy to carry, and highly reliable. The wooden mounting base 2 is lightweight and portable while possessing sufficient strength to meet the load-bearing requirements of all belt conveyors on site. The U-shaped base 3 can be stably installed and clamped onto the mounting base 2. Two φ20mm bolt holes are pre-drilled at the bottom of the U-shaped base 3, allowing the insertion of two φ20mm high-strength pins after the U-shaped base 3 is installed on the mounting base 2, further improving the stability of the scissor jack installation. The scissor jack is lightweight and compact, making it easy to carry and place between the conveyor belt and the idler support beam 1. The rubber ball cap 6 is sturdy and durable, ensuring that the conveyor belt is not damaged during lifting. The rocker end of the screw 7 is welded with a high-strength hexagonal nut 8, which can be connected to an electric wrench. Using an electric wrench to apply force drives the screw 7 to rotate, saving labor. This effectively improves the efficiency of belt conveyor idler replacement, reduces the labor intensity of employees, and reduces maintenance time.

[0041] In summary, the present invention provides an auxiliary device for replacing idler rollers on a belt conveyor, which enables electric drive to lift the conveyor belt and quickly position the lifting part and the belt. It provides stable support without damaging the belt, quickly completes the replacement of idler rollers, reduces replacement costs caused by belt damage, and extends belt life.

[0042] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

[0043] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0044] Throughout this specification, references to "an embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of the present invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the present invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the present invention shown herein may be based on the teachings herein and will be considered part of the spirit and scope of the present invention.

[0045] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0046] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0047] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0048] The above description of the embodiments shown in this utility model is not intended to be an exhaustive enumeration or to limit the utility model to the precise forms disclosed herein. Although specific embodiments and examples of the utility model have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the utility model, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the utility model in accordance with the above description of the embodiments of the utility model, and such modifications will be within the spirit and scope of the utility model.

[0049] This document has generally described the systems and methods in detail to aid in understanding the present invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention can be practiced without one or more specific details, or using other devices, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0050] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. An auxiliary device for changing idler rollers of a belt conveyor, comprising a scissor jack, characterized in that, The base of the scissor jack is a U-shaped base (3); The top support of the scissor jack is a spherical cap (6); The remote end of the screw (7) of the scissor jack is provided with a hexagonal nut (8); The fixed base (2) is attached to the U-shaped base (3); The fixed seat (2) is horizontally set on the idler support beam (1) of the conveyor.

2. The auxiliary device for changing idler rollers of a belt conveyor according to claim 1, characterized in that, The spherical cap (6) is a hemisphere made of rubber, and a connecting plate is provided at the lower end of the hemisphere. The connecting plate is threadedly connected to the top of the scissor jack.

3. The auxiliary device for changing idler rollers of a belt conveyor according to claim 1, characterized in that, The fixed seat (2) is rod-shaped and arranged parallel to the length direction of the roller bracket.

4. The auxiliary device for changing idler rollers of a belt conveyor according to claim 3, characterized in that, The U-shaped base (3) is fitted onto the fixed base (2) and connected by bolts.

5. The auxiliary device for changing idler rollers of a belt conveyor according to claim 1, characterized in that, It also includes an electric wrench, the wrench head of which is provided with a mating socket, and the mating socket is engaged with the hexagonal nut (8).

6. The auxiliary device for changing idler rollers of a belt conveyor according to claim 5, characterized in that, The electric wrench is equipped with a pressure sensor near the mating port.

7. The auxiliary device for changing idler rollers of a belt conveyor according to claim 1, characterized in that, It also includes a laser pointer, which is mounted on the fixed base (2) for aligning the fixed base (2) and the roller support beam (1).

8. The auxiliary device for changing idler rollers of a belt conveyor according to claim 1, characterized in that, It also includes a top rod (4), which is arc-shaped and located at the top of the spherical cap (6) to support the conveyor belt.

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