Roller bar mounting and adjustment mechanism

Abstract

The utility model provides a kind of roller mounting adjusting mechanism, including connecting support, connecting crossbeam, roller support seat, locking piece and roller shaft end connecting piece, the top end fixed mounting of connecting support is in the bottom end of connecting crossbeam, the bottom end of connecting support is equipped with the first long circular mounting hole of being arranged along vertical direction, the top end of connecting crossbeam is equipped with the installation slot of being arranged along its length direction, the bottom end of roller support seat and installation slot form the sliding connection along the length direction of installation slot;The flexible adjustment of roller height is realized by the vertical long circular mounting hole of connecting support and the installation slot of connecting crossbeam, compensates thermal deformation and mechanical bending, with greater height adjustment range, can effectively compensate the thermal deformation and mechanical bending of roller, reduce wear, improve the stability and reliability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of roller transmission technology, and specifically to a roller mounting and adjusting mechanism. Background Technology

[0002] A roller drive is a mechanical system consisting of a series of parallel rollers. These rollers are driven to rotate by an external power source, thereby continuously and stably conveying materials or workpieces. Its core function is to realize the linear or specific path movement, positioning and transmission of materials.

[0003] To ensure smooth material transfer, the installation height of the rollers needs to be adjusted during installation to ensure all rollers are on the same horizontal plane, thus ensuring a smooth material transition. In addition, long-term high-temperature operation or heavy load operation may cause the rollers to bend or deform, or the support mechanism (such as bearing housing) to shift. Therefore, it is also necessary to periodically adjust the installation height of the rollers to compensate for these deviations and extend the service life of the equipment.

[0004] In existing technologies, the height adjustment of rollers typically involves mounting the roller bearing on an eccentric sleeve or shaft. By rotating this eccentric component, the change in its circumferential thickness causes the bearing's center position to move up and down, thus adjusting the roller height. This method has a limited adjustment range, constrained by the eccentricity, which is usually small (typically a few millimeters). Furthermore, if the eccentric component is poorly fitted or worn, it may introduce additional radial runout, affecting the roller's operational stability. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a roller mounting and adjustment mechanism to solve the problems of limited adjustment range and potential impact on roller operation stability due to roller wear caused by the use of eccentric sleeves or eccentric shafts for height adjustment in existing rollers.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This application provides a roller mounting and adjusting mechanism, including a connecting bracket, a connecting beam, a roller support base, a locking member, and a roller shaft end connector. The top end of the connecting bracket is fixedly installed on the bottom end of the connecting beam. The bottom end of the connecting bracket has a first elongated oval mounting hole arranged vertically. The top end of the connecting beam has a mounting groove arranged along its length. The bottom end of the roller support base is slidably connected to the mounting groove along the length of the mounting groove. The roller support base is fixedly installed in the mounting groove by the locking member. One end of the roller shaft end connector is rotatably connected to one end of the roller, and the other end of the roller shaft end connector is fixedly installed on the top end of the roller support base.

[0008] Furthermore, the connecting bracket includes a horizontally arranged upper connecting plate and a vertically arranged lower connecting plate, which are integrally formed and form an "L" shaped structure. The lower connecting plate is provided with a pair of first oblong mounting holes arranged vertically. The upper connecting plate is fixedly installed at the bottom end of the connecting beam.

[0009] Furthermore, the top end of the roller support is provided with a threaded mounting hole, one end of the roller shaft end connector is provided with a second elongated oval mounting hole that mates with the threaded mounting hole, the bottom end of the roller support is provided with a positioning hole, and the roller support is fixedly installed in the mounting groove by a locking member installed in the positioning hole.

[0010] Furthermore, the left and right sides of the roller support are respectively provided with reinforcing ribs, and the side of the roller support is provided with a hollowed-out notch.

[0011] Furthermore, one end of the roller shaft end connector is a connecting block with the second oblong mounting hole installed, and the other end of the roller shaft end connector is a cylindrical shaft. An annular groove is opened on the outer circumferential surface of the cylindrical shaft, and a sealing element is installed on the annular groove. The cylindrical shaft is rotatably installed in one end of the inner cavity of the roller through a bearing.

[0012] Furthermore, the connecting bracket and the roller support are made of cast aluminum.

[0013] Furthermore, the roller shaft end connector is made of a high-polymer hard plastic material.

[0014] The beneficial effects of this utility model are as follows:

[0015] By adopting the above-mentioned roller mounting and adjustment mechanism, the height of the roller can be flexibly adjusted through the vertical elongated oval mounting hole of the connecting bracket and the mounting groove of the connecting beam, compensating for thermal deformation and mechanical bending. It has a large height adjustment range, effectively compensating for the thermal deformation and mechanical bending of the roller, reducing wear, and improving the stability and reliability of equipment operation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the roller mounting and adjusting mechanism installed on the roller conveying device in the embodiments of this application.

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A in the diagram.

[0018] Figure 3 This is a three-dimensional structural diagram of the roller support base in the embodiments of this application.

[0019] Figure 4 This is a three-dimensional structural diagram of the connecting beam in an embodiment of this application.

[0020] Figure 5 This is a three-dimensional structural diagram of the roller shaft end connector in the embodiments of this application.

[0021] Figure 6 This is a three-dimensional structural diagram of the connecting bracket in an embodiment of this application.

[0022] In the picture:

[0023] 100-Roller installation and adjustment mechanism;

[0024] 10-Connecting bracket; 11-Lower connecting plate; 12-Upper connecting plate; 13-First elongated oval mounting hole;

[0025] 20 - Connecting crossbeam; 21 - Mounting slot;

[0026] 30 - Roller support; 31 - Threaded mounting hole; 32 - Reinforcing rib; 33 - Notch; 34 - Positioning hole;

[0027] 40 - Roller shaft end connector; 41 - Connecting block; 42 - Cylindrical shaft; 43 - Annular groove; 44 - Second oblong mounting hole. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Traditional roller drive systems typically adjust the installation height of the rollers using eccentric sleeves or shafts. This method is limited by the eccentricity, which is usually small. Furthermore, if the eccentric components are poorly fitted or worn, additional radial runout may be introduced, affecting the smoothness of the roller operation.

[0030] Reference Figures 1 to 6 As shown, this application proposes a roller mounting and adjusting mechanism 100, which includes a connecting bracket 10, a connecting beam 20, a roller support 30, a locking member, and a roller shaft end connector 40. The top end of the connecting bracket 10 is fixedly mounted to the bottom end of the connecting beam 20, and the bottom end of the connecting bracket 10 has a first elongated oval mounting hole 13 arranged vertically. The top end of the connecting beam 20 has a mounting groove 21 arranged along its length, and the bottom end of the roller support 30 is slidably connected to the mounting groove 21 along the length of the mounting groove 21. The roller support 30 is fixedly mounted in the mounting groove 21 by the locking member, one end of the roller shaft end connector 40 is rotatably connected to one end of the roller, and the other end of the roller shaft end connector 40 is fixedly mounted to the top end of the roller support 30. This mechanism, through its innovative structural design, aims to solve the problems of small roller height adjustment range and potential radial runout in existing technologies.

[0031] For ease of understanding, the following explains some key terms in this embodiment:

[0032] The connecting bracket 10 serves as a support component for the entire adjustment mechanism, connecting the adjustment mechanism to the external structure and bearing part of the load.

[0033] The connecting beam 20, which serves as the main frame of the adjustment mechanism, provides a horizontal mounting and sliding track for the roller support 30.

[0034] The roller support 30 directly supports the roller shaft end connector 40 and enables it to slide horizontally on the connecting beam 20 and connect vertically with the connecting bracket 10.

[0035] Locking elements (such as bolts) are used to secure the roller support 30 or connecting bracket 10 in a preset position after adjustment, ensuring the stability of the mechanism.

[0036] The roller shaft end connector 40 is used to connect the roller to the roller support 30 and to allow the roller to rotate.

[0037] The first elongated oval mounting hole 13 is a hole opened on the connecting bracket 10 to realize the vertical connection between the connecting bracket 10 and the external structure, and to provide vertical adjustment space.

[0038] The mounting groove 21 is a groove opened on the connecting beam 20, used to guide the roller support 30 to slide in the horizontal direction.

[0039] This embodiment provides a roller mounting and adjusting mechanism, the specific structure and working principle of which are as follows:

[0040] Reference Figures 1 to 6 As shown, the mechanism comprises a connecting bracket 10, a connecting beam 20, a roller support 30, a locking component, and a roller shaft end connector 40. These components work together to achieve the installation and adjustment functions of the roller.

[0041] The top end of the connecting bracket 10 is fixedly installed to the bottom end of the connecting beam 20. For example, the top end of the connecting bracket 10 can be fixed to the bottom end of the connecting beam 20 by welding, bolting, or riveting.

[0042] The bottom end of the connecting bracket 10 has a first oblong mounting hole 13 arranged vertically. This first oblong mounting hole 13 can be one or more, and its shape can be elliptical or rectangular, with its major axis extending vertically. For example, this mounting hole can be formed by processes such as stamping, milling, or laser cutting.

[0043] The top of the connecting beam 20 is provided with a mounting groove 21 arranged along its length. The mounting groove 21 can be a through groove or multiple spaced groove segments. For example, the mounting groove 21 can be formed by milling, casting, or welding guide rails.

[0044] The bottom end of the roller support 30 is slidably connected to the mounting groove 21 along the length of the mounting groove 21. For example, the bottom end of the roller support 30 may be designed with a protrusion or slider that mates with the mounting groove 21, so that the roller support 30 can slide freely within the mounting groove 21 along its length.

[0045] The roller support 30 is fixedly installed in the mounting groove 21 by a locking element. For example, the locking element can be a bolt, a clamp, or a wedge. By tightening the bolt or operating the clamp, friction or mechanical locking is generated between the roller support 30 and the mounting groove 21, thereby fixing it in the desired position.

[0046] One end of the roller shaft end connector 40 is rotatably connected to one end of the roller. For example, one end of the roller shaft end connector 40 can be designed as a bearing housing structure with a bearing installed inside. The roller shaft end is inserted into the bearing and supported by the bearing, thereby achieving a rotatable connection.

[0047] The other end of the roller shaft end connector 40 is fixedly installed at the top of the roller support 30. For example, the other end of the roller shaft end connector 40 can be fixedly connected to the top of the roller support 30 by means of bolts, pins or welding.

[0048] With the above structure, the roller mounting and adjusting mechanism of this application can provide a larger roller height adjustment range, and through the fixing effect of the locking part, it can effectively reduce the radial runout that may occur during the operation of the roller, thereby ensuring the smoothness of material transmission and extending the service life of the equipment.

[0049] In some of the solutions described above in this application, a connecting bracket 10 is proposed to connect the crossbeam 20 and the support seat. However, in the process of its implementation, the structure of the connecting bracket 10 may lack sufficient stability and precision, which may lead to loosening or deformation during installation, affecting the accuracy of roller height adjustment and overall levelness, thus failing to effectively compensate for deviations during long-term operation.

[0050] Reference Figure 6 As shown, this application further proposes that the connecting bracket 10 includes a horizontally arranged upper connecting plate 12 and a vertically arranged lower connecting plate 11. The upper connecting plate 12 can be designed as a rectangular or square plate structure, with its width matching the bottom surface of the connecting beam 20, and its length determined according to the required support range. The lower connecting plate 11 can be designed as a plate structure perpendicularly connected to the upper connecting plate 12, with a height sufficient to accommodate the elongated oval mounting hole and provide sufficient support strength. This horizontal and vertical layout ensures a reasonable distribution of the bracket in both horizontal and vertical directions, facilitating precise alignment with the connecting beam 20 and the mounting hole, and avoiding misalignment during installation.

[0051] Furthermore, the upper connecting plate 12 and the lower connecting plate 11 are integrally formed. Integral forming means that the upper connecting plate 12 and the lower connecting plate 11 are manufactured as a single unit during the manufacturing process, for example, by casting molten metal into a mold in one step, or by extrusion molding followed by finishing. This manufacturing method eliminates potential gaps or loosening at the connection points, significantly enhancing the overall structural strength and rigidity, thereby reducing the risk of deformation due to long-term loads.

[0052] Based on this, the upper connecting plate 12 and the lower connecting plate 11 form an "L"-shaped structure. This L-shaped structure can be designed as a right-angled L-shape, i.e., the upper connecting plate 12 and the lower connecting plate 11 form a 90-degree angle, or an L-shape with rounded corners to reduce stress concentration. This L-shaped design provides a stable support frame, optimizes space utilization, ensures that the support remains balanced when subjected to external forces, prevents tilting or displacement, effectively transfers the vertical load from the roller support 30 to the connecting beam 20, and resists lateral forces in the horizontal direction.

[0053] Meanwhile, the lower connecting plate 11 is provided with a pair of first oblong mounting holes 13 arranged vertically. These first oblong mounting holes 13 can be precisely machined on the lower connecting plate 11 by means of CNC milling, laser cutting, or stamping, and their size and spacing can be designed according to the required adjustment range and the specifications of the locking parts. The vertical arrangement of the first oblong mounting holes 13 allows for multi-level adjustment in the vertical direction, increasing the degree of adjustment freedom and facilitating fine adjustment of the roller height to compensate for roller bending or deformation.

[0054] Furthermore, the upper connecting plate 12 is fixedly installed at the bottom end of the connecting beam 20. This fixing method can be achieved by bolting, with bolt holes pre-drilled on the upper connecting plate 12 and the connecting beam 20, and tightening with bolts and nuts; or by welding, the upper connecting plate 12 and the bottom end of the connecting beam 20 are fused together to form a permanent connection. This fixing method ensures a firm connection between the connecting bracket 10 and the connecting beam 20, preventing relative slippage during operation, thereby maintaining the overall levelness of the roller.

[0055] Through the above technical solution, the connecting bracket 10 adopts an L-shaped integrated molding structure and is provided with a horizontally arranged upper connecting plate 12 and a vertically arranged lower connecting plate 11, which effectively enhances the structural strength and rigidity of the connecting bracket 10, avoids the loosening and deformation problems that may occur in traditional connection methods, and thus significantly improves the installation stability and adjustment accuracy of the mechanism. The first elongated oval mounting holes 13 arranged vertically on the lower connecting plate 11 provide greater freedom and more precise adjustment capability for the vertical adjustment of the roller height, enabling more accurate adjustment of the roller's level during roller installation and effectively compensating for deviations such as roller bending, deformation, or support mechanism displacement caused by high temperature or load during long-term operation. The firm fixation of the upper connecting plate 12 to the connecting beam 20 further ensures the overall stability and reliability of the entire roller installation and adjustment mechanism. Therefore, the design of the connecting bracket 10 in this application can effectively solve the problems of limited roller height adjustment range, insufficient adjustment accuracy, and affected operational stability in the prior art, ensuring the long-term stable operation of the roller transmission device and the smoothness of material transmission.

[0056] In some embodiments of this application, a roller support 30 is proposed for adjusting the height of the roller. However, in its implementation, insufficient adjustment accuracy or insecure fixing may lead to unstable operation of the roller.

[0057] Reference Figure 3As shown, this application further proposes that the top end of the roller support 30 is provided with a threaded mounting hole 31, one end of the roller shaft end connector 40 is provided with a second elongated oval mounting hole 44 that is connected to the threaded mounting hole 31, and the bottom end of the roller support 30 is provided with a positioning hole 34. The roller support 30 is fixedly installed in the mounting groove 21 by a locking member installed in the positioning hole 34.

[0058] Specifically, the top of the roller support 30 is provided with a threaded mounting hole 31, which can be used to connect with external threaded components, such as bolts or screws. The threaded mounting hole 31 allows the roller shaft end connector 40 to be fixed to the roller support 30 via a threaded connection, thus providing a stable and adjustable connection method. The threaded mounting hole 31 can use standard thread specifications, such as M6 or M8, to ensure compatibility with commercially available threaded fasteners. Furthermore, the depth and diameter of the threaded mounting hole 31 can be designed according to the required load-bearing capacity and adjustment range; for example, it can be designed as a through hole or a blind hole, and different thread pitches can be selected according to the actual application to achieve finer adjustment.

[0059] One end of the roller shaft end connector 40 has a second oblong mounting hole 44 that mates with the threaded mounting hole 31. The design of this second oblong mounting hole 44 allows the roller shaft end connector 40 to slide within a certain range, thereby enabling fine-tuning of the roller's installation position. For example, when a bolt passes through the second oblong mounting hole 44 and is screwed into the threaded mounting hole 31 of the roller support 30, the roller shaft end connector 40 can move slightly along the length of the oblong hole before the bolt is fully tightened, to precisely align the height or horizontal position of the roller. The length and width of the second oblong mounting hole 44 can be optimized according to the required adjustment accuracy and range; for example, the length can be designed to be 5-10 mm, and the width slightly larger than the bolt diameter, to ensure the flexibility of adjustment and the stability of the final tightening.

[0060] The bottom end of the roller support 30 has a positioning hole 34. This positioning hole 34 is used to accommodate a locking element to securely fix the roller support 30 within the mounting groove 21. The positioning hole 34 can be designed as a round, square, or irregularly shaped hole, and its shape and size should match the selected locking element. For example, the positioning hole 34 can be a countersunk hole to accommodate a countersunk bolt, so that the head of the locking element is flush with the bottom surface of the roller support 30 to avoid interference. Alternatively, the positioning hole 34 can be a through hole for the bolt to pass through and engage with a nut at the bottom of the mounting groove 21 for tightening.

[0061] The roller support 30 is secured within the mounting groove 21 by a locking element installed in the positioning hole 34. The locking element can be a bolt, screw, pin, or other fastener. For example, the roller support 30 can be firmly clamped within the mounting groove 21 by passing a bolt through the positioning hole 34 and screwing it into a threaded hole at the bottom of the mounting groove 21, or by using a bolt and nut. The selection of the locking element should take into account its shear and tensile strength to ensure that the roller support 30 does not shift or loosen during high-speed or heavy-load operation of the roller.

[0062] Through the above technical solution, the threaded mounting hole 31 at the top of the roller support 30 mates with the second elongated oval mounting hole 44 on the roller shaft end connector 40, enabling precise fine-tuning of the roller shaft end connector 40 during installation, effectively solving the problem of insufficient adjustment accuracy. Simultaneously, the synergistic effect of the positioning hole 34 at the bottom of the roller support 30 and the locking element ensures the roller support 30 is firmly fixed within the mounting groove 21, preventing loosening or displacement during operation, thus solving the problem of insecure fixing. These improvements work together to significantly enhance the stability and adjustment reliability of the roller installation and adjustment mechanism, thereby ensuring the smooth operation of the roller drive device and the accuracy of material transmission.

[0063] In some of the embodiments described above in this application, a roller support 30 is proposed to support and fix the roller shaft end connector 40. However, in its implementation, the roller support 30 may deform or become too heavy under long-term high-temperature operation or load operation, which may affect the adjustment accuracy and equipment life.

[0064] In response, this application further optimizes the roller support 30. Specifically, reinforcing ribs 32 are provided on both the left and right sides of the roller support 30, and hollow notches 33 are opened on the sides of the roller support 30. The reinforcing ribs 32 on the left and right sides of the roller support 30 are typically structural protrusions integrally formed with the roller support 30 or fixed by welding, bolting, or other methods. Their function is to increase the moment of inertia of the roller support 30, thereby significantly improving its bending and torsional stiffness. Specifically, the reinforcing ribs 32 can be designed as strip-shaped structures extending along the height or length direction of the roller support 30, and their cross-sectional shape can be rectangular, triangular, or trapezoidal to optimize stress distribution. Alternatively, the reinforcing ribs 32 can also be plate-shaped structures attached to the sides of the roller support 30, and their material can be the same as the support or a higher-strength material to further enhance the overall structural strength. Meanwhile, a hollowed-out notch 33 is provided on the side of the roller support 30. The hollowed-out notch 33 refers to a through-hole or non-through-hole or groove formed on the side wall of the roller support 30. Its main purpose is to effectively reduce the overall weight of the roller support 30 and optimize the material distribution while ensuring the necessary structural strength. Specifically, the hollowed-out notch 33 can adopt a regular geometric shape, such as a circular, elliptical, rectangular or polygonal hole, and can be reasonably arranged according to the actual stress conditions and casting process.

[0065] By providing reinforcing ribs 32 on both sides of the roller support 30 and simultaneously creating hollowed-out notches 33 on the sides of the roller support 30, this application effectively solves the problems of deformation and excessive weight that may occur in the roller support 30 under long-term high-temperature operation or heavy load. Specifically, the reinforcing ribs 32 significantly enhance the structural strength and rigidity of the roller support 30, enabling it to better resist bending or torsional deformation caused by external stress, thereby ensuring stable support of the roller under various working conditions and maintaining the installation accuracy of the roller. At the same time, the hollowed-out notches 33 play a key role in reducing the overall weight of the roller support 30. This not only reduces material costs and manufacturing difficulty, but more importantly, it reduces the inertia of the support, making the height adjustment process of the roller easier and more precise, and reducing the load on the drive mechanism. This structural optimization allows the roller support 30 to maintain high load-bearing capacity while having better resistance to deformation and lighter weight, thereby extending the service life of the equipment and improving the operational reliability and adjustment accuracy of the entire roller installation and adjustment mechanism.

[0066] In some of the embodiments described above in this application, a roller shaft end connector 40 is proposed to realize the connection between the roller and the support base and the height adjustment. However, in the process of its implementation, due to the lack of effective sealing and rotation support design of the connector, it may lead to sealing failure, external contaminant intrusion or unstable rotation, resulting in increased wear, increased radial runout, and affecting the smoothness of roller operation and equipment service life.

[0067] Reference Figure 5 As shown, this application further proposes a specific structure for the roller shaft end connector 40, one end of which is a connecting block 41 with a second elongated oval mounting hole 44 installed, and the other end of the roller shaft end connector 40 is a cylindrical shaft 42. An annular groove 43 is provided on the outer circumferential surface of the cylindrical shaft 42, and a sealing element is installed on the annular groove 43. The cylindrical shaft is rotatably installed in one end of the inner cavity of the roller through a bearing.

[0068] Specifically, one end of the roller shaft end connector 40 is provided with a connecting block 41. This connecting block 41 is a structural component that provides a plane or area for installing and connecting other components, serving as an interface between the roller shaft end connector 40 and the roller support 30. The connecting block 41 can be a thickened or extended portion integrally formed on the roller shaft end connector 40, with the required shape and holes machined; alternatively, the connecting block 41 can be an accessory manufactured separately and fixed to the main body of the roller shaft end connector 40 by welding, bolting, or other methods. A second elongated oval mounting hole 44 is installed on the connecting block 41. This hole type allows for position adjustment within a certain range. Its function is to cooperate with the threaded mounting hole 31 of the roller support 30 to achieve position adjustment of the roller shaft end connector 40 within a certain range, thereby indirectly adjusting the height or horizontal position of the roller. The second oblong mounting hole 44 can be directly machined on the connecting block 41 by milling or wire cutting, with its long axis direction consistent with the adjustment direction; or it can be obtained by stamping or casting followed by precision machining to ensure its dimensional accuracy and surface finish.

[0069] The other end of the roller shaft end connector 40 is a cylindrical shaft 42, which is another major structural part of the roller shaft end connector 40. Its cylindrical geometry provides the basis for subsequent rotational support and sealing, serving as a rotational connector between the roller and the external drive or support mechanism, and providing an installation interface for bearings and seals. The cylindrical shaft 42 can be integrally formed with the connecting block 41, achieving high-precision cylindricity through precision machining processes such as turning and grinding; alternatively, it can be a separately manufactured precision shaft, partially assembled with the connecting block 41 through press fitting, key connection, or threaded connection.

[0070] An annular groove 43 is formed on the outer circumferential surface of the cylindrical shaft 42. This groove is a continuous groove distributed along the outer circumferential surface of the cylindrical shaft 42. Its function is to provide a stable installation space and positioning structure for the seal, ensuring that the seal can be correctly installed and effectively perform its sealing function. The annular groove 43 can be directly formed on the outer circumferential surface of the cylindrical shaft 42 by turning, and its depth and width are designed according to the size of the selected seal; it can also be formed by processes such as grinding or rolling to obtain higher surface quality and dimensional accuracy, which is beneficial to the life of the seal and the sealing effect.

[0071] A seal is installed on the annular groove 43. A seal is a device used to prevent fluid or particulate matter from leaking from one area or entering another. Its function is to protect the bearings and rollers from external contamination and prevent internal lubricant loss, thereby extending the service life of the rollers and bearings. The seal can be an elastomeric seal such as an O-ring or lip seal, typically made of materials such as rubber, fluororubber, or polyurethane, achieving a seal through its elastic deformation and close contact with the mating surface. Alternatively, non-contact or contact sealing structures such as mechanical seals or labyrinth seals can be used, with the appropriate type selected based on the temperature, pressure, and media characteristics of the working environment.

[0072] A cylindrical shaft rotatably mounts within one end of the inner cavity of the roller via a bearing. A bearing is a mechanical component used to support rotating shafts or reciprocating components and reduce friction and wear. Its function is to ensure smooth, low-friction rotation of the cylindrical shaft 42 within the roller's inner cavity, and to withstand radial and axial loads, maintaining the roller's precise rotation. Bearings can be rolling bearings, such as deep groove ball bearings, tapered roller bearings, or self-aligning roller bearings; or sliding bearings, such as oil-impregnated bearings, composite bearings, or hydrodynamic bearings. The inner cavity of the roller refers to the hollow portion inside the roller, usually located near its end. Its function is to provide space for the installation of the bearing and the cylindrical shaft 42, allowing the roller to connect to an external support mechanism and rotate. The roller's inner cavity can be a precision-machined hole with an inner diameter that fits tightly with the bearing's outer diameter or the bearing housing's outer diameter, allowing the bearing to be installed via press fitting or thermal expansion; alternatively, it can be designed with steps or stops for axial positioning of the bearing, ensuring proper and stable installation.

[0073] Through the above technical solution, this application optimizes the specific structure of the roller shaft end connector 40, effectively solving the problems of sealing failure, external contaminant intrusion, and unstable rotation caused by the lack of effective sealing and rotational support design in the connector. Specifically, one end of the roller shaft end connector 40 is provided with a connecting block 41 for installing a second elongated oval mounting hole 44. This not only facilitates an adjustable connection with the roller support seat 30, ensuring the flexibility and accuracy of roller height adjustment, but also provides a stable mounting base for the subsequent rotating parts. The other end is designed as a cylindrical shaft 42. This cylindrical structure provides a uniform rotational support base, effectively dispersing stress and reducing stress concentration. Furthermore, an annular groove 43 is formed on the outer circumferential surface of the cylindrical shaft 42 and a seal is installed thereon. This forms a reliable sealing interface, which can effectively prevent external dust, liquid, and other contaminants from intruding into the roller, while preventing leakage of internal lubricant, thereby significantly reducing the risk of wear and protecting internal precision components. Based on this, the cylindrical shaft is rotatably mounted in one end of the inner cavity of the roller via a bearing. The introduction of the bearing achieves low-friction, high-precision rotational fit, effectively suppressing radial runout and ensuring the smoothness of the roller during high-speed or heavy-load operation. In summary, through the adjustment function of the connecting block 41 and the elongated oval mounting hole, the stable support of the cylindrical shaft 42, the effective sealing of the annular groove 43 and the seal, and the low-friction, high-precision rotation of the bearing, this application synergistically improves the smoothness, sealing, and durability of the roller operation, significantly extending the service life of the equipment and reducing maintenance costs.

[0074] In some of the solutions described above in this application, the connecting bracket 10 and the roller support seat 30 are made of cast aluminum. Using cast aluminum (i.e., aluminum alloy material formed by casting process) can ensure a certain strength and hardness while also making it lighter in weight.

[0075] In some of the solutions described above in this application, a roller shaft end connector 40 is proposed to connect the roller and allow it to rotate. However, when using conventional materials, deformation and increased friction may occur due to high temperature or load, affecting the adjustment accuracy and running stability.

[0076] In this regard, this application further proposes that the roller shaft end connector 40 is made of a high-polymer hard plastic material. High-polymer hard plastic materials are a class of polymer materials with characteristics such as high strength, high hardness, wear resistance, high temperature resistance, and low coefficient of friction. Specifically, it can be polyetheretherketone (PEEK), which has excellent high temperature resistance, wear resistance, chemical corrosion resistance, and mechanical strength, and can maintain structural integrity in harsh working environments. Alternatively, the high-polymer hard plastic material can also be polyimide (PI), which is known for its extremely high heat resistance, excellent mechanical properties, and good self-lubricating properties, effectively reducing friction and extending service life.

[0077] By using a high-polymer hard plastic material for the roller shaft end connector 40, the inherent high strength, wear resistance, and low friction properties of this material effectively avoid the creep, deformation, and surface wear problems that are prone to occur in traditional metal materials under long-term high-temperature operation or high-load conditions. This significantly reduces the frictional resistance between the roller shaft end connector 40 and the inner cavity of the roller, thereby ensuring the smoothness of the roller during rotation and reducing the accumulation of heat generated by friction. At the same time, the dimensional stability of the high-polymer hard plastic material ensures that the roller installation adjustment mechanism can maintain precise positioning when adjusting the height, avoiding adjustment errors caused by connector deformation, and thus improving the operating accuracy and reliability of the entire roller transmission system.

[0078] Through the above technical solution, the roller shaft end connector 40 is made of high-polymer hard plastic material, effectively solving the problems of excessive weight, high friction coefficient, easy corrosion and wear that may arise from traditional metal materials in roller transmission devices. The lightweight characteristics of high-polymer hard plastic material significantly reduce the weight of the roller shaft end connector 40 itself, thereby reducing the overall load of the entire roller installation and adjustment mechanism, helping to reduce inertia and improve response speed. At the same time, its inherent low friction coefficient characteristics enable the roller shaft end connector 40 to significantly reduce frictional resistance and energy loss when in rotational contact with the roller, thereby effectively suppressing radial runout and ensuring the smooth operation and precise adjustment of the roller. In addition, the excellent wear resistance and corrosion resistance of high-polymer hard plastic material enable the roller shaft end connector 40 to maintain stable performance even under long-term high temperature or high load operating environments, effectively extending the service life of the component and reducing maintenance costs. In view of this, the roller installation and adjustment mechanism of this application significantly improves the reliability and durability of the equipment while ensuring smooth and precise adjustment of the roller.

[0079] The following example will provide a more detailed explanation of the above technical solution:

[0080] In an industrial production line, a series of rollers need to be precisely installed and adjusted to ensure the smooth and continuous transport of materials in a high-temperature environment. Due to long-term operation and thermal deformation, deviations in the levelness and height of the rollers may occur, requiring a mechanism for compensation and adjustment.

[0081] The connecting beam 20 of this mechanism is fixedly installed on the frame structure of the production line, and a mounting groove 21 is provided at its top along its length. The top of the connecting bracket 10 is fixedly installed at the bottom of the connecting beam 20, and the bottom of the connecting bracket 10 has a first elongated oval mounting hole 13 arranged vertically. The connecting bracket 10 is integrally formed by a horizontally arranged upper connecting plate 12 and a vertically arranged lower connecting plate 11, forming an "L" shaped structure. The lower connecting plate 11 has a pair of elongated oval mounting holes arranged vertically. Both the connecting bracket 10 and the roller support 30 are made of cast aluminum to ensure structural strength and stability.

[0082] The bottom end of the roller support 30 is slidably connected to the mounting groove 21, meaning that the roller support 30 can slide freely along its length within the mounting groove 21. When the horizontal position of the roller needs to be adjusted, the operator can loosen the locking device securing the roller support 30 and then slide the roller support 30 along the mounting groove 21 to the target position. The side of the roller support 30 is provided with reinforcing ribs 32 and has a hollowed-out notch 33, which helps to reduce weight and maintain structural rigidity. Once the desired horizontal position is reached, the roller support 30 is securely fixed in the mounting groove 21 by the locking device installed in the positioning hole 34 at the bottom of the roller support 30, preventing displacement during operation.

[0083] One end of the roller shaft end connector 40 is rotatably connected to one end of the roller, and the other end is fixedly installed at the top of the roller support 30. The roller shaft end connector 40 is made of high-polymer hard plastic material. The top of the roller support 30 is provided with a threaded mounting hole 31, and one end of the roller shaft end connector 40 is provided with a second elongated oval mounting hole 44 that mates with the threaded mounting hole 31. One end of the roller shaft end connector 40 is a connecting block 41, and the other end is a cylindrical shaft 42. An annular groove 43 is provided on the outer circumferential surface of the cylindrical shaft 42, and a seal is installed on the annular groove 43. The cylindrical shaft 42 is rotatably installed in one end of the inner cavity of the roller through a bearing.

[0084] When vertical height adjustment of the rollers is required, the operator can loosen the fasteners between the connecting block 41 and the roller support 30. Because the connecting block 41 has a second elongated oval mounting hole 44, the roller shaft end connector 40 can move vertically relative to the roller support 30 within a certain range. This allows for fine-tuning of the roller height to compensate for bending deformation or to ensure all rollers are on the same horizontal plane. Furthermore, if a larger range of vertical adjustment is needed, adjustment can also be made through the first elongated oval mounting hole 13 at the bottom of the connecting bracket 10. Loosening the fasteners between the connecting bracket 10 and the connecting beam 20 allows the entire roller support 30 assembly to shift vertically. After adjustment, retighten all fasteners to ensure stable operation of the rollers in the new position.

[0085] Compared to existing technologies that adjust height by rotating an eccentric sleeve or shaft, this mechanism, through a combination of sliding connection and elongated oval mounting holes, provides a wider adjustment range and higher adjustment precision. The adjustment range of eccentric adjustment methods is limited by the eccentricity, typically small, and may introduce radial runout due to component wear. In contrast, this mechanism's adjustment method, whether horizontal sliding or vertical elongated hole adjustment, allows for greater displacement. Furthermore, after adjustment, the locking mechanism provides a more stable fixation, preventing operational instability caused by poor fit or wear of the eccentric components, thus ensuring the smoothness of the roller drive and the quality of material transfer.

[0086] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A roller mounting and adjusting mechanism, characterized in that, The device includes a connecting bracket, a connecting beam, a roller support base, a locking element, and a roller shaft end connector. The top end of the connecting bracket is fixedly installed on the bottom end of the connecting beam. The bottom end of the connecting bracket has a first elongated oval mounting hole arranged vertically. The top end of the connecting beam has a mounting groove arranged along its length. The bottom end of the roller support base is slidably connected to the mounting groove along the length of the mounting groove. The roller support base is fixedly installed in the mounting groove by the locking element. One end of the roller shaft end connector is rotatably connected to one end of the roller, and the other end of the roller shaft end connector is fixedly installed on the top end of the roller support base.

2. The roller mounting and adjusting mechanism according to claim 1, characterized in that, The connecting bracket includes a horizontally arranged upper connecting plate and a vertically arranged lower connecting plate, which are integrally formed and form an "L" shaped structure. The lower connecting plate is provided with a pair of first elongated oval mounting holes arranged vertically. The upper connecting plate is fixedly installed at the bottom end of the connecting beam.

3. The roller mounting and adjusting mechanism according to claim 1, characterized in that, The top end of the roller support is provided with a threaded mounting hole, one end of the roller shaft end connector is provided with a second elongated oval mounting hole that mates with the threaded mounting hole, the bottom end of the roller support is provided with a positioning hole, and the roller support is fixedly installed in the mounting groove by a locking member installed in the positioning hole.

4. The roller mounting and adjusting mechanism according to claim 3, characterized in that, The left and right sides of the roller support are respectively provided with reinforcing ribs, and the side of the roller support is provided with a hollowed-out notch.

5. The roller mounting and adjusting mechanism according to claim 3, characterized in that, One end of the roller shaft end connector is a connecting block with the second oblong mounting hole installed, and the other end of the roller shaft end connector is a cylindrical shaft. An annular groove is opened on the outer circumferential surface of the cylindrical shaft, and a sealing element is installed on the annular groove. The cylindrical shaft is rotatably installed in one end of the inner cavity of the roller through a bearing.

6. The roller mounting and adjusting mechanism according to claim 1, characterized in that, The connecting bracket and roller support are made of cast aluminum.

7. A roller mounting and adjusting mechanism according to claim 1 or 6, characterized in that, The roller shaft end connector is made of high-polymer hard plastic material.

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