Integrated device for the support rollers of a chain and pan conveyor

Abstract

The utility model discloses a kind of integrated devices of upper carrier wheel on chain and grate machine, the device includes support platform beam, a pair of side sealing assembly and multiple upper carrier wheel components, support platform beam is frame structural member and is installed in chain and grate machine rack, side sealing assembly includes side plate box, slide rail and sealing element, to form the sliding support and sealing of chain and grate bed, upper carrier wheel component is installed in support platform beam by pedestal and bearing seat to form rolling support, and each component is preloaded in support platform beam and adjusts coaxial degree before factory. The device is mainly used for the support and sealing of chain and grate bed in chain and grate machine, improves installation efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of chain grate machine technology. More specifically, this utility model relates to an integrated device for supporting rollers on a chain grate machine. Background Technology

[0002] In the metallurgical industry, the upper support rollers and side seals of chain grate machines are critical components for ensuring the normal operation of the equipment. They need to support the chain grate bed and achieve sealing in high-temperature and high-dust environments for extended periods. Traditional chain grate machine upper support roller and side seal assemblies are transported in parts and assembled on-site, which has significant technical drawbacks. Because the installation of these parts requires individual on-site adjustments, the side seal seat is first pre-aligned and leveled on the wind box support beam, then the upper support roller shaft is passed through the side seal seat shaft hole, and the bearing seat and support roller are installed. The entire process relies on manual experience to repeatedly adjust the level and coaxiality, resulting in low installation efficiency, long commissioning cycles, and severely impacting the equipment's production schedule. Furthermore, the use of multiple reference points for positioning during the installation of these parts leads to inconsistent positioning references between the side seal assembly and the upper support roller assembly. Accumulated errors can easily cause deviations in the support roller axis or uneven side seal gaps, frequently resulting in chain grate bed jamming, air leakage, and material leakage during operation, leading to high equipment maintenance costs. Although existing technologies include split upper support roller structures and adjustable side sealing devices, the accuracy problem caused by multi-reference positioning has not been solved. The industry still generally adopts the method of installing individual parts, making it difficult to guarantee installation accuracy and stability. Utility Model Content

[0003] This utility model provides an integrated device for upper support rollers of a chain grate machine. It utilizes a support platform beam as the same reference platform to pre-assemble the upper support roller assembly and the side sealing assembly into a functional unit, which is then installed on the chain grate machine frame on-site, improving installation efficiency and accuracy.

[0004] To achieve these objectives and other advantages according to this utility model, an integrated device for supporting rollers on a chain grate machine is provided, comprising:

[0005] The support platform beam is a frame structure component installed on the chain grate machine frame;

[0006] A pair of side sealing assemblies are symmetrically fixed to the upper surface of the support platform beam. Each side sealing assembly includes a side plate box, a slide rail fixed inside the side plate box, and several sealing elements installed in the side plate box. The side plate box is fixed to the support platform beam. The pair of slide rails slide in contact with the chain grate bed to form sliding support and sealing of the chain grate bed.

[0007] Multiple upper support roller assemblies are arranged in parallel at equal intervals to form rolling support for the chain grate bed. Each upper support roller assembly includes an upper support roller shaft, several upper support rollers, a pair of bearing seats, and a pair of bases. The pair of bases are symmetrically fixed to the upper surface of the support platform beam and located outside a pair of side plate boxes. The pair of bearing seats are respectively installed on the pair of bases. The upper support roller shaft is installed on the pair of bearing seats. The upper support roller shaft and the side plate box are rolled sealed by a sealing element. The multiple upper support roller assemblies and the pair of side sealing assemblies are pre-installed on the support platform beam and their coaxiality is adjusted before leaving the factory.

[0008] Preferably, the support platform beam is formed by welding a pair of longitudinal beams and a pair of transverse beams perpendicularly to each other. The longitudinal beams are arranged along the length of the chain grate machine frame, and the transverse beams are arranged along the width of the chain grate machine frame. Reinforcing ribs are provided at the welding joints of the longitudinal beams and transverse beams. The longitudinal beams are detachably connected to the chain grate machine frame. The upper surface of the longitudinal beams is machined with positioning pin holes for installing side plate boxes and bases.

[0009] Preferably, for any upper support roller shaft, several upper support rollers are arranged at intervals along the axial direction of the upper support roller shaft, and a protective bushing is provided between adjacent upper support rollers. The protective bushing is sleeved on the upper support roller shaft, and both ends of the protective bushing abut against the adjacent upper support rollers respectively.

[0010] Preferably, the side panel box is provided with a plurality of the sealing elements on the outer side near the upper support roller shaft, the plurality of sealing elements are arranged along the length direction of the side panel box, and the sealing elements are in contact with the upper support roller shaft and the side panel box.

[0011] Preferably, the base has a positioning pin at the bottom that matches the positioning pin hole, and the base is installed on the support platform beam through the positioning pin hole and the positioning pin.

[0012] Preferably, an adjusting shim is provided between the bearing housing and the base. The adjusting shim has a multi-layer thin sheet structure, and the installation height of the bearing housing can be adjusted by increasing or decreasing the number of adjusting shims.

[0013] This utility model has at least the following beneficial effects:

[0014] This utility model adopts a modular integrated design. Using the support platform beam as a unified benchmark, the upper support roller assembly and the side sealing assembly are pre-assembled as functional units, which can be hoisted as a whole on site, simplifying the installation steps and shortening the installation time. The coaxiality adjustment and precision calibration are completed before leaving the factory, avoiding the accumulation of errors from multiple benchmarks on site. The deviation of the support roller axis is controlled within the specified range, and the coaxiality error and horizontal elevation are guaranteed. The uniformity of the side sealing gap is improved, which significantly improves the operational stability of the equipment.

[0015] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the integrated assembly of the upper support roller and the side seal according to a technical solution of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of one technical solution of this utility model;

[0018] Figure 3 This is a structural schematic diagram of a support platform beam according to one technical solution of this utility model. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0020] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0021] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials described are commercially available. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship 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. They 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.

[0022] like Figure 1-3 As shown, this utility model provides an integrated device for supporting rollers on a chain grate machine, comprising:

[0023] Support platform beam 1 is a frame structure component, which is welded from longitudinal beams and transverse beams. The dimensional accuracy is ensured by tooling and machining. It is installed on the chain grate frame 2 and serves as the same installation reference platform for the upper support roller assembly and the side sealing assembly. Before leaving the factory, the upper support roller assembly and the side sealing assembly are assembled on the support platform beam 1 and integrated as a pre-installed functional unit.

[0024] A pair of side sealing assemblies are symmetrically fixed to the upper surface of the support platform beam 1. The sealing structure installed on both sides of the chain grate bed prevents material leakage and air leakage. Each side sealing assembly includes a side plate box 3, a slide rail 5 fixed inside the side plate box 3, and several sealing elements 4 installed on the side plate box 3. They are pre-assembled before leaving the factory to ensure accurate gaps. The side plate box 3 is fixed to the support platform beam 1. The side plate box 3 is made of welded or cast parts with machined connecting surfaces. A pair of slide rails 5 slide in contact with the chain grate bed to form sliding support and sealing of the chain grate bed. The slide rails 5 are made of wear-resistant alloy and machined on all surfaces. The sealing elements 4 are assembled components.

[0025] Multiple upper support roller assemblies are arranged in parallel at equal intervals to form rolling support for the chain grate bed. Each upper support roller assembly includes an upper support roller shaft 7, several upper support rollers 8, a pair of bearing seats 9, and a pair of bases 6. The pair of bases 6 are symmetrically fixed to the upper surface of the support platform beam 1 and located outside a pair of side plate boxes 3. The bases 6 are welded parts with machined surfaces. The pair of bearing seats 9 are respectively installed on the pair of bases 6. The bearing seats 9 are made of cast iron and have built-in self-aligning roller bearings. The upper support roller shaft 7 is installed on the pair of bearing seats 9. The upper support roller shaft 7 is made of alloy steel pipe and welded to a solid shaft head. The upper support roller shaft 7 and the side plate box 3 are rolled sealed by a sealing element 4. The multiple upper support roller assemblies are pre-installed on the support platform beam 1 and their coaxiality is adjusted before leaving the factory.

[0026] During on-site installation, the integrated device is hoisted onto the chain grate machine frame 2. The support platform beam 1 is fixed to the frame with bolts. The chain grate bed is placed on the upper support roller 8 and the slide rail 5. The upper support roller 8 provides rolling support, and the slide rail 5 provides auxiliary guidance. During operation, the upper support roller 8 rotates simultaneously with the upper support roller shaft 7 under the action of friction. The seal 4 fits against the side plate box 3 and the upper support roller shaft 7 to form a seal. Since the coaxiality and clearance have been adjusted before leaving the factory, no complicated calibration is required on-site; it can be used directly after connection.

[0027] In the above technical solution, a modular integrated design is adopted. The upper support roller assembly and the side sealing assembly are pre-assembled as functional units using the support platform beam 1 as a unified reference. The entire assembly can be hoisted on site, simplifying the installation steps and shortening the installation time. The coaxiality adjustment and precision correction are completed before leaving the factory, avoiding the accumulation of errors from multiple references on site. The deviation of the support roller axis is controlled within the specified range, ensuring coaxiality error and horizontal elevation. The uniformity of the side sealing gap is improved, significantly enhancing the operational stability of the equipment.

[0028] In another technical solution, the support platform beam 1 is formed by welding a pair of longitudinal beams and a pair of transverse beams perpendicularly to each other. The longitudinal beams are arranged along the length of the chain grate machine frame 2, and the transverse beams are arranged along the width of the chain grate machine frame 2. Reinforcing ribs are provided at the welding joints of the longitudinal beams and transverse beams, which are fully welded to the longitudinal beams and transverse beams respectively, to disperse the stress at the frame joints and improve the deformation resistance of the support platform beam 1. The longitudinal beams are detachably connected to the chain grate machine frame 2. The upper surface of the longitudinal beams is machined with positioning pin holes for installing the side plate boxes 3 and the base 6. During installation, the side plate boxes 3 and the base 6 are inserted along the positioning pins. No additional measurement is required. They are directly fixed by bolts to ensure that the installation benchmarks of each component are uniform.

[0029] In the above technical solution, the frame structure of the supporting platform beam 1 is welded together with longitudinal beams, transverse beams and reinforcing ribs, which can withstand the heavy load of the chain grate bed.

[0030] In another technical solution, for any upper support roller shaft 7, several upper support rollers 8 are arranged at intervals along the axial direction of the upper support roller shaft 7, that is, arranged at a certain interval along the length direction of the upper support roller shaft 7. A protective bushing is provided between adjacent upper support rollers 8. The protective bushing is a cylindrical component with heat-insulating and fire-resistant fiber felt inside, used to protect the upper support roller shaft 7. The protective bushing is fitted onto the upper support roller shaft 7, and both ends of the protective bushing abut against the adjacent upper support rollers 8. The protective bushing and the heat-insulating material inside the protective bushing prevent hot air from directly contacting the upper support roller shaft 7, reducing the thermal deformation of the upper support roller shaft 7. When the chain grate is running, the upper support rollers 8 rotate simultaneously with the upper support roller shaft 7 under the action of friction. Under the protection of the protective bushing, the thermal deformation of the upper support roller shaft 7 is reduced, ensuring that the contact line between the upper support roller 8 and the chain grate remains parallel, avoiding uneven local stress caused by deformation.

[0031] In the above technical solution, the protective bushing is fitted onto the upper support roller shaft 7 to prevent hot air from directly contacting the upper support roller shaft 7, reduce the thermal deformation of the upper support roller shaft 7, ensure the uniformity of rolling support, extend the service life of the support roller, and reduce equipment vibration and noise.

[0032] In another technical solution, the side plate box 3 is provided with a plurality of sealing elements 4 on the outer side near the upper support roller shaft 7. The sealing elements 4 are elastic high-temperature resistant sealing elements, and the plurality of sealing elements 4 are arranged along the length direction of the side plate box 3, and the sealing elements 4 are in contact with the upper support roller shaft 7 and the side plate box 3. The side plate box 3 will undergo thermal expansion in a high-temperature environment, and the sealing elements 4 will compress and absorb the impact energy to avoid rigid collisions.

[0033] In the above technical solution, the seal 4 deforms when the side plate box 3 is slightly displaced, absorbing the impact energy and preventing the upper support roller shaft 7 from directly colliding with the side plate box 3, which would damage the seal 4. This extends the replacement cycle of the seal 4 by 2-3 times, reducing maintenance costs. At the same time, reducing air leakage can improve the efficiency of the fan, reduce energy waste, reduce dust overflow, and improve the working environment.

[0034] In another technical solution, the base 6 has a positioning pin at its bottom that matches the positioning pin hole. The base 6 is installed on the support platform beam 1 via an interference fit between the positioning pin hole and the positioning pin. During installation, the positioning pin of the base 6 is inserted into the positioning pin hole to achieve precise positioning of the base 6 on the support platform beam 1. Subsequently, the base 6 is fixed to the support platform beam 1 with bolts, restricting the lateral and longitudinal displacement of the base 6 and ensuring a uniform installation reference for the upper support roller assembly. The engaging guide between the positioning pin and the positioning pin hole eliminates the need for repeated measurement and alignment during the installation of the base 6, improving installation efficiency and coaxiality adjustment accuracy, thus ensuring the parallelism of multiple upper support roller assemblies.

[0035] In another technical solution, an adjusting shim is provided between the bearing housing 9 and the base 6. The adjusting shim has a multi-layer thin sheet structure, and the installation height of the bearing housing 9 can be adjusted by increasing or decreasing the number of adjusting shims. The adjusting shim is composed of multiple layers of stainless steel sheets with thicknesses of 0.1 mm, 0.5 mm, and 1 mm, and the total thickness of each group of shims can be adjusted within the range of 0.1-3 mm. A rectangular groove is machined on the upper surface of the base 6. The adjusting shim is placed in the groove. When the bearing housing 9 is fixed to the base 6 with bolts, the adjusting shim is pressed tight, and the installation height of the bearing housing 9 can be changed by increasing or decreasing the number of thin sheets. The adjusting shim can achieve a fine adjustment of height of 0.1-1 mm by increasing or decreasing the number of layers, adapting to the levelness requirements under different working conditions, and controlling the horizontal elevation error of the upper support roller shaft 7 within 0.3 mm, ensuring the stable operation of the chain grate bed.

[0036] The number of devices and processing scale described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this utility model will be readily apparent to those skilled in the art.

[0037] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An integrated device for supporting rollers on a chain grate machine, characterized in that, include: The support platform beam is a frame structure component installed on the chain grate machine frame; A pair of side sealing assemblies are symmetrically fixed to the upper surface of the support platform beam. Each side sealing assembly includes a side plate box, a slide rail fixed inside the side plate box, and several sealing elements installed in the side plate box. The side plate box is fixed to the support platform beam. The pair of slide rails slide in contact with the chain grate bed to form sliding support and sealing of the chain grate bed. Multiple upper support roller assemblies are arranged in parallel at equal intervals to form rolling support for the chain grate bed. Each upper support roller assembly includes an upper support roller shaft, several upper support rollers, a pair of bearing seats, and a pair of bases. The pair of bases are symmetrically fixed to the upper surface of the support platform beam and located outside a pair of side plate boxes. The pair of bearing seats are respectively installed on the pair of bases. The upper support roller shaft is installed on the pair of bearing seats. The upper support roller shaft and the side plate box are rolled sealed by a sealing element. The multiple upper support roller assemblies and the pair of side sealing assemblies are pre-installed on the support platform beam and their coaxiality is adjusted before leaving the factory.

2. The chain grate machine upper support roller integrated device as described in claim 1, characterized in that, The support platform beam is formed by welding a pair of longitudinal beams and a pair of transverse beams perpendicularly to each other. The longitudinal beams are arranged along the length of the chain grate machine frame, and the transverse beams are arranged along the width of the chain grate machine frame. Reinforcing ribs are provided at the welding joints of the longitudinal beams and transverse beams. The longitudinal beams are detachably connected to the chain grate machine frame. The upper surface of the longitudinal beams is machined with positioning pin holes for installing side plate boxes and bases.

3. The integrated device for supporting rollers on a chain grate machine as described in claim 1, characterized in that, For any upper support roller shaft, several upper support rollers are arranged at intervals along the axial direction of the upper support roller shaft. A protective bushing is provided between adjacent upper support rollers. The protective bushing is sleeved on the upper support roller shaft, and both ends of the protective bushing abut against the adjacent upper support rollers respectively.

4. The chain grate machine upper support roller integrated device as described in claim 1, characterized in that, The side panel box is provided with a plurality of the aforementioned sealing elements on the outer side near the upper support roller shaft. The plurality of sealing elements are arranged along the length direction of the side panel box, and the sealing elements are in contact with the upper support roller shaft and the side panel box.

5. The chain grate machine upper support roller integrated device as described in claim 1, characterized in that, The base is equipped with a positioning pin that matches the positioning pin hole. The base is installed on the support platform beam through the positioning pin hole and the positioning pin.

6. The chain grate machine upper support roller integrated device as described in claim 1, characterized in that, An adjusting shim is provided between the bearing housing and the base. The adjusting shim has a multi-layer thin sheet structure, and the installation height of the bearing housing can be adjusted by increasing or decreasing the number of adjusting shims.

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