A tool and replacement method for online replacement of upper supporting rollers of belt conveyor

Abstract

The present invention provides a tooling and replacement method for online replacement of the upper roller of a belt conveyor, and relates to the field of material conveying technology. The tooling includes: rollers, roller brackets, a telescopic mechanism for adjusting the height of the rollers, a tilt adjustment mechanism for adjusting the tilt angle of the rollers, and a fixed seat. The upper end of the roller bracket is provided with a fixing groove for installing the rollers, the lower end of the roller bracket is fixedly connected to the upper end of the telescopic mechanism, and the lower end of the telescopic mechanism is connected to the tilt adjustment mechanism. Through the cooperation of the telescopic mechanism, the tilt adjustment mechanism and the rollers, the upper and lower height adjustment and the adaptive adjustment of the tilt angle of the rollers can be achieved. The belt is lifted up by the rollers, and the rollers on the tooling replace the upper roller to be replaced for belt conveying. At this time, the upper roller can be replaced online. After the replacement is completed, the telescopic mechanism and the tilt adjustment mechanism are adjusted to make the belt contact with the replaced upper roller, so that the rollers can be quickly replaced online without stopping the machine.

Description

Technical Field

[0001] The present invention relates to the technical field of material conveying, and in particular to a tool for online replacement of a supporting wheel on a belt conveyor and a replacement method. Background Art

[0002] Currently, replacing spare parts for material handling equipment under continuous operation presents a challenge. If all parts of material handling equipment were designed to be replaceable at any time, the equipment would be expensive. The challenge is to simplify material handling equipment while ensuring that wearing parts can be replaced with high-quality spare parts without stopping the machine.

[0003] In view of this, the present invention is proposed. Summary of the Invention

[0004] The object of the present invention is to provide a tool and a replacement method for online replacement of the upper supporting roller of a belt conveyor so as to realize rapid online replacement of the upper supporting roller by using simple tool.

[0005] The present invention is achieved in that:

[0006] The present invention provides a tool for online replacement of the upper roller of a belt conveyor, the tool comprising: a roller, a roller bracket, a telescopic mechanism for adjusting the height of the roller, a tilt adjustment mechanism for adjusting the tilt angle of the roller and a fixed seat, the upper end of the roller bracket is provided with a fixing groove for installing the roller, the lower end of the roller bracket is fixedly connected to the upper end of the telescopic mechanism, the lower end of the telescopic mechanism is connected to the tilt adjustment mechanism, the end of the tilt adjustment mechanism away from the telescopic mechanism is connected to the fixed seat, and the fixed seat is used to be fixed on a beam near the upper roller to be replaced.

[0007] The inventors discovered that by coordinating the telescopic mechanism, the tilt adjustment mechanism, and the rollers, they can achieve both vertical adjustment and adaptive tilt angle adjustment of the rollers. The rollers lift the belt, and the rollers on the tooling replace the upper rollers to be replaced for belt conveying. This allows the upper rollers to be replaced online. After replacement, the telescopic mechanism and tilt adjustment mechanism are adjusted to bring the belt into contact with the replaced upper rollers, enabling rapid, online roller replacement without stopping the machine.

[0008] In a preferred embodiment of the present invention, the telescopic mechanism is a rack and pinion adjustment structure, a telescopic cylinder, a telescopic rod or a hydraulic adjustment structure.

[0009] The telescopic cylinder includes, for example, a cylinder body and a piston rod reciprocally mounted on the cylinder body.

[0010] Telescopic rods include but are not limited to electric telescopic rods, pneumatic telescopic rods or hydraulic telescopic rods.

[0011] The telescopic rod is, for example, selected from a screw rod and nut structure. As long as the upward and downward telescopic adjustment of the roller height can be achieved, it is within the protection scope of the present invention.

[0012] In an optional embodiment, the telescopic mechanism is selected from a gear rack adjustment structure or a screw rod and nut structure.

[0013] In a preferred embodiment of the present invention, when the telescopic mechanism is a rack and pinion adjustment structure, the telescopic mechanism includes a rack, a gear, a gear shaft, a gear shaft support frame and a gear shaft seat, the top end of the rack is fixedly connected to the bottom of the roller bracket, the gear and the rack are meshed, and the gear is arranged on the gear shaft or the gear and the gear shaft are integrally formed, the gear shaft is arranged on the gear shaft seat, the gear shaft seat is arranged on the gear shaft support frame, and the bottom end of the gear shaft support frame is fixedly connected to the tilt adjustment mechanism.

[0014] During use, the rack is raised by rotating the gear, thereby driving the roller to be higher than the inclined roller, so that the upper belt is separated from the inclined roller and / or the middle flat roller. Then, the inclined roller and / or the middle flat roller can be replaced. After the rollers are replaced, the rack is lowered by rotating the gear, the roller is separated from the upper belt, the fixing seat is loosened, the tooling is removed, and the online replacement is completed.

[0015] In an optional embodiment, the tooling for online replacement of the upper roller of the belt conveyor can be adjusted to a shorter distance through gears and racks (for example, the roller on the tooling is adjusted to a height close to that of the upper roller to be replaced) to facilitate subsequent quick fine-tuning of the height.

[0016] In a preferred embodiment of the present invention, the tilt adjustment mechanism includes: support plate one and support plate two connected by a hinge shaft, wherein the top end of support plate one is fixedly connected to the bottom end of the gear shaft support frame, and the bottom end of support plate two is fixedly connected to the fixed seat.

[0017] In a preferred embodiment of the present invention, support plate 1 and support plate 2 are respectively provided with a plurality of through holes at positions away from the twist shaft, and are connected by snap-fitting with the through holes at a plurality of different positions through a snap-fitting member to enable support plate 1 and support plate 2 to rotate relative to each other around the twist shaft.

[0018] The aforementioned snap-fitting mechanism involves engaging the movable ends (i.e., the ends away from the twisting axis) of support plates 1 and 2 at different heights via a snap-fitting mechanism that engages through-holes at various locations. By causing support plates 1 and 2 to rotate relative to each other around the twisting axis, the snap-fitting mechanism penetrates the corresponding holes, aligning support plates 1 and 2 at a desired angle. Since the top of support plate 1 is fixedly connected to the bottom of the gear shaft support frame, the tooling assembly rotates at a specific angle to accommodate the replacement of different inclined rollers, ensuring that the rollers on the tooling are parallel to the upper roller to be replaced. This also facilitates quick and safe roller replacement.

[0019] In a preferred embodiment of the present invention, the clamping member is a bolt or a clamping rod; and the plurality of through holes are distributed and arranged around the center line of the twist shaft as the center of the circle.

[0020] The through holes can also be designed to have the same or different distances between each other as required.

[0021] In an embodiment, the through hole on the first support plate and the through hole on the second support plate have the same shape.

[0022] The sizes of support plate 1 and support plate 2 can be the same or different. For example, support plate 1 can be larger, slightly larger, or significantly larger than support plate 2, or smaller, slightly smaller, or significantly smaller than support plate 2.

[0023] In a preferred embodiment of the present invention, both support plate 1 and support plate 2 are provided with a retaining slot centered on the shaft, away from the shaft. The retaining slot facilitates the relative positioning of support plate 1 and support plate 2 during relative rotation about the shaft, facilitating the replacement of different inclined rollers. Support plate 1 and support plate 2 can be retained at any suitable relative position between the two retaining slots to accommodate angle adjustment.

[0024] In a preferred embodiment of the present invention, the limiting slots are fixed by providing bolts.

[0025] In a preferred embodiment of the present invention, a guide rail pair is provided between the gear shaft support frame and the roller support frame to ensure effective engagement between the gear and the rack. A guide rail pair is provided between the gear shaft support frame and the roller support frame to ensure effective engagement between the gear and the rack and to serve as a guide.

[0026] The present invention also provides a method for online replacement of the upper supporting roller, which includes using the above-mentioned tool to perform online replacement of the upper supporting roller. The method includes the following steps:

[0027] First, fix the fixing seat of the tooling on one side of the crossbeam on the front and rear sides adjacent to the upper roller to be replaced, adjust the angle through the tilt adjustment mechanism, so that the roller on the tooling is parallel to the inclined roller on one side of the upper roller to be replaced, and adjust the telescopic mechanism to make the roller higher than the inclined roller, so that the upper belt is separated from the inclined roller and / or the middle flat roller. After replacing the inclined roller and / or the flat roller, adjust the telescopic mechanism to separate the roller on the tooling from the upper belt.

[0028] For example, when it is necessary to replace the inclined roller on one side of the upper roller, and the telescopic mechanism is a gear rack adjustment structure, first adjust the tooling for replacing the upper roller of the belt conveyor online to a shorter distance through the gear and rack, fix the fixed seat on the upper crossbeam adjacent to the front or rear side of the upper roller that needs to be replaced, adjust the angle through the tilt adjustment mechanism to make it parallel to the inclined roller on one side above the upper roller, and by rotating the gear, the rack rises, thereby driving the roller higher than the inclined roller, so that the upper belt can be separated from the inclined roller and the middle flat roller. Then, the inclined roller and the middle flat roller can be replaced. After the roller is replaced, the rack is lowered by rotating the gear, and the roller is separated from the upper belt. The fixed seat is loosened, the tooling is removed, and the online replacement is completed.

[0029] When a set of inclined rollers needs to be replaced, two sets of upper roller fixtures need to be fixed on both sides of the beam, using the same method as before, and they need to be done simultaneously. The so-called "set of inclined rollers" refers to a row of upper rollers, including a symmetrical inclined roller on each side and a flat roller in the middle.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention utilizes a telescopic mechanism, a tilt adjustment mechanism, and rollers to achieve vertical adjustment and adaptive tilt angle adjustment of the rollers. The rollers lift the belt, and the rollers on the tooling replace the upper rollers to be replaced for belt conveying. The upper rollers can then be replaced online. After replacement, the telescopic mechanism and tilt adjustment mechanism are adjusted to bring the belt into contact with the replaced upper rollers, enabling rapid, online roller replacement without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the tooling and upper supporting roller structure for online replacement of a single-side upper supporting roller provided in Example 1;

[0034] Figure 2 yes Figure 1 An enlarged schematic diagram of the middle tilt mechanism;

[0035] Figure 3 This is a schematic diagram of the structure of online replacement of the upper supporting rollers on both sides and the middle shown in Example 2;

[0036] Figure 4 yes Figure 3Another enlarged schematic diagram of the middle tilt mechanism (Example 2);

[0037] Figure 5 yes Figure 1 or Figure 3 Schematic cross-section of the tooling for the upper supporting wheel.

[0038] Icons: 10-upper supporting roller; 20-belt; 30-crossbeam; 40-upper supporting roller tooling; 41-roller; 42-roller bracket; 43-telescopic mechanism; 431-rack; 432-gear; 433-gear shaft; 434-gear shaft support frame; 435-gear shaft seat; 44-tilt adjustment mechanism; 441-twisted shaft; 442-support plate one; 443-support plate two; 444-screw hole one; 445-screw hole two; 446-arc groove two; 447-arc groove one; 45-fixed seat; 46-guide rail pair. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "clockwise," "counterclockwise," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0044] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] Example 1

[0046] See also Figure 1 、 Figure 2 and Figure 5 As shown, this embodiment provides a tooling and replacement method for online replacement of the upper roller of a belt conveyor. The tooling includes: an idler, an idler bracket, a telescopic mechanism for adjusting the height of the idler, a tilt adjustment mechanism for adjusting the tilt angle of the idler, and a fixed seat. The upper end of the idler bracket is provided with a fixing groove for mounting the idler. The lower end of the idler bracket is fixedly connected to the upper end of the telescopic mechanism. The lower end of the telescopic mechanism is connected to the tilt adjustment mechanism. The end of the tilt adjustment mechanism away from the telescopic mechanism is connected to the fixed seat. The fixed seat is used to fix to a beam near the upper roller to be replaced. The present invention can achieve the adjustment of the upper and lower height of the idler and the adaptive adjustment of the tilt angle by cooperating with the telescopic mechanism, the tilt adjustment mechanism, and the idler. The belt is lifted by the idler, and the idler on the tooling replaces the upper roller to be replaced for belt conveying. At this time, the upper roller can be replaced online. After the replacement is completed, the telescopic mechanism and the tilt adjustment mechanism are adjusted to make the belt contact with the replaced upper roller, realizing the rapid replacement of the idler online without stopping the machine.

[0047] In this embodiment, an upper roller fixture 40 is provided on the upper crossbeam 30 adjacent to the front or rear side of the upper roller 10 to be replaced. Specifically, a fixing seat 45 is fixed to the upper crossbeam 30 adjacent to the front or rear side of the upper roller 10, a telescopic mechanism 43 can adjust the height of the roller 41, and a tilt adjustment mechanism 44 can adjust the tilt angle of the roller 41 to adapt to the tilt angle of the upper rollers 10 on both sides of the belt 20 of the belt conveyor.

[0048] The telescopic mechanism can be a rack-and-pinion adjustment structure, a telescopic cylinder, a telescopic rod, or a hydraulic adjustment structure. In this embodiment, the telescopic mechanism is a rack-and-pinion adjustment structure. Furthermore, the telescopic cylinder, for example, includes a cylinder body and a piston rod reciprocally mounted therein. The telescopic rod includes, but is not limited to, an electric telescopic rod, a pneumatic telescopic rod, or a hydraulic telescopic rod. For example, the telescopic rod can be a screw-and-nut structure. Any mechanism capable of achieving vertical telescopic adjustment of the roller height falls within the scope of protection of the present invention.

[0049] The telescopic mechanism 43 includes a rack 431, a gear 432, a gear shaft 433, a gear shaft support frame 434, and a gear shaft seat 435. The top of the rack is fixedly connected to the bottom of the roller bracket, the gear and the rack are meshed, and the gear is set on the gear shaft or the gear and the gear shaft are integrally formed, the gear shaft is set on the gear shaft seat, the gear shaft seat is set on the gear shaft support frame, and the bottom end of the gear shaft support frame is fixedly connected to the tilt adjustment mechanism. In this embodiment, the gear 432 is fixed on the gear shaft 433. When in use, the rack is raised by rotating the gear, thereby driving the roller above the inclined roller, so that the upper belt is separated from the inclined roller and / or the middle flat roller. Then, the inclined roller and / or the middle flat roller can be replaced. After the roller is replaced, the rack is lowered by rotating the gear, the roller is separated from the upper belt, the fixing seat is loosened, the tooling is removed, and the online replacement is completed.

[0050] The tilt adjustment mechanism 44 includes a support plate 1 442 and a support plate 2 443 connected by a hinge shaft 441 , wherein the top end of the support plate 1 is fixedly connected to the bottom end of the gear shaft support frame 434 , and the bottom end of the support plate 2 is fixedly connected to the fixing seat 45 .

[0051] Support plate 1 442 and support plate 2 443 are respectively provided with multiple screw holes 1 444 and screw holes 2 445 (the screw holes are the aforementioned through holes) distributed around the center line of the twist shaft 441 at positions away from the twist shaft 441. Bolts are used to engage with screw holes 1 444 and screw holes 2 445 at multiple different positions to achieve relative rotation of support plate 1 and support plate 2 around the twist shaft.

[0052] The aforementioned snap-fit ​​connection involves bolts engaging with multiple, differently located screw holes 444 and 445, enabling the movable ends of support plates 1 and 2 (i.e., the ends facing away from the twisting axis) to be snapped together at varying angles. Support plates 1 442 and 2 443 rotate relative to each other around the twisting axis, with bolts correspondingly securing them through the various positions of screw holes 444 and 445. This drives the entire fixture to rotate at a specific angle to accommodate the replacement of various inclined rollers, ensuring that the rollers on the fixture are aligned with the upper roller to be replaced. This also facilitates quick and safe roller replacement.

[0053] A guide rail pair 46 is provided between the gear shaft support frame 434 and the roller support frame 42, which not only ensures the effective engagement between the gear 432 and the rack 431, but also plays a guiding role.

[0054] The method for online replacement of the upper supporting roller includes adopting the upper tug roller tooling 40 for online replacement of the upper supporting roller 10 of the belt conveyor; first, the upper tug roller tooling 40 for online replacement of the upper supporting roller of the belt conveyor is adjusted to a shorter distance by the gear 432 and the rack 431, and the fixing seat 45 is fixed on the upper crossbeam 30 adjacent to the front or rear side of the upper supporting roller 10 to be replaced, and the angle is adjusted by the tilt adjustment mechanism 44 so that the roller 41 is parallel to the inclined supporting roller on one side of the upper supporting roller, and the rack 431 is raised by rotating the rotating gear 432, thereby driving the roller 41 to be higher than the upper supporting roller 10, so that the upper belt 20 is separated from the inclined supporting roller, and then, the inclined supporting roller to be replaced on one side of the belt conveyor can be replaced. After the upper supporting roller 10 is replaced, the rack 431 is lowered by rotating the rotating gear 432, and the roller 41 is separated from the upper belt, the fixing seat 45 is loosened, and the upper tug roller tooling 40 is removed to complete the online replacement of the upper supporting roller 10 on one side of the belt conveyor.

[0055] Example 2

[0056] This embodiment provides a tooling and replacement method for an online replacement of a set of rollers on a belt conveyor. The tooling includes: rollers, roller brackets, a telescopic mechanism for adjusting the height of the rollers, a tilt adjustment mechanism for adjusting the tilt angle of the rollers, and a fixed seat. The upper end of the roller bracket is provided with a fixing groove for mounting the rollers. The lower end of the roller bracket is fixedly connected to the upper end of the telescopic mechanism. The lower end of the telescopic mechanism is connected to the tilt adjustment mechanism. The end of the tilt adjustment mechanism away from the telescopic mechanism is connected to the fixed seat. The fixed seat is used to fix to a beam near the upper roller to be replaced. The present invention can achieve the adjustment of the upper and lower height of the rollers and the adaptive adjustment of the tilt angle by cooperating with the telescopic mechanism, the tilt adjustment mechanism, and the rollers. The belt is lifted by the rollers, and the rollers on the tooling replace the upper rollers to be replaced for belt conveying. At this time, the upper rollers can be replaced online. After the replacement is completed, the telescopic mechanism and the tilt adjustment mechanism are adjusted to make the belt contact with the replaced upper rollers, realizing the rapid replacement of the rollers online without stopping the machine.

[0057] like Figure 3 、 Figure 4 、 Figure 5As shown, upper roller fixtures 40 are respectively installed on the upper crossbeams 30 on the front or rear sides adjacent to the upper roller 10 that needs to be replaced. Fixed bases 45 are fixed to the upper crossbeams 30 on the front or rear sides adjacent to the upper roller 10, and the two sets of fixtures are adjusted separately. The telescopic mechanism 43 can adjust the height of the roller 41, and the tilt adjustment mechanism 44 can adjust the tilt angle of the roller 41 to adapt to the tilt angle of the upper rollers 10 on both sides of the belt conveyor belt 20. The telescopic mechanism 43 can be a gear rack adjustment structure, a hydraulic adjustment structure, or a screw and nut adjustment structure. In this embodiment, the telescopic mechanism is a gear rack adjustment structure.

[0058] The telescopic mechanism can be a rack-and-pinion adjustment structure, a telescopic cylinder, a telescopic rod, or a hydraulic adjustment structure. In this embodiment, the telescopic mechanism is a rack-and-pinion adjustment structure. Furthermore, the telescopic cylinder, for example, includes a cylinder body and a piston rod reciprocally mounted therein. The telescopic rod includes, but is not limited to, an electric telescopic rod, a pneumatic telescopic rod, or a hydraulic telescopic rod. For example, the telescopic rod can be a screw-and-nut structure. Any mechanism capable of achieving vertical telescopic adjustment of the roller height falls within the scope of protection of the present invention.

[0059] The telescopic mechanism 43 includes a rack 431, a gear 432, a gear shaft 433, a gear shaft support frame 434, and a gear shaft seat 435. The top of the rack is fixedly connected to the bottom of the roller bracket, the gear and the rack are meshed, and the gear is set on the gear shaft or the gear and the gear shaft are integrally formed, the gear shaft is set on the gear shaft seat, the gear shaft seat is set on the gear shaft support frame, and the bottom end of the gear shaft support frame is fixedly connected to the tilt adjustment mechanism. In this embodiment, the gear 432 is fixed on the gear shaft 433. When in use, the rack is raised by rotating the gear, thereby driving the roller above the inclined roller, so that the upper belt is separated from the inclined roller and / or the middle flat roller. Then, the inclined roller and / or the middle flat roller can be replaced. After the roller is replaced, the rack is lowered by rotating the gear, the roller is separated from the upper belt, the fixing seat is loosened, the tooling is removed, and the online replacement is completed.

[0060] The tilt adjustment mechanism 44 includes a twisting shaft 441, a support plate 1 442, and a support plate 2 443. Support plate 1 442 is fixedly connected to the bottom of the gear shaft support frame 434, and support plate 2 443 is fixedly connected to the fixing seat 45. Support plates 1 442 and 443 are connected by the twisting shaft 441 on the side close to the rack 431. Support plates 1 442 and 443 are respectively provided with arc grooves 1 447 and arc grooves 2 446 (i.e., limiting slots) distributed around the centerline of the twisting shaft 441 at positions away from the twisting shaft 441. The angular position is changed by adjusting the relative rotational position of arc grooves 1 447 and arc grooves 2 446. When the angle of the upper roller of the tooling needs to be adjusted, the angular position change is achieved by relative rotation around the twisting shaft 441, and then the bolts are tightened. The limiting slots are fixed by bolts.

[0061] A guide rail pair 46 is provided between the gear shaft support frame 434 and the roller support frame 42, which not only ensures the effective engagement between the gear 432 and the rack 431, but also plays a guiding role.

[0062] The method for online replacement of the upper supporting roller comprises using the above-mentioned upper supporting roller replacement tool 40 for online belt conveyor to replace the upper supporting roller:

[0063] The method includes: firstly, adjusting the upper roller fixture 40 for online replacement of the upper roller of the belt conveyor to a shorter distance through the gear 432 and the rack 431, fixing a pair of fixing seats 45 on the upper roller fixture 40 for online replacement of the upper roller of the belt conveyor to the upper crossbeam 30 on both sides adjacent to the upper roller 10 to be replaced, adjusting the angle through the tilt adjustment mechanism 44 so that it is parallel to the two side inclined rollers on the upper roller, and respectively raising the rack 431 by rotating the gear 432, thereby driving the rollers 41 on both sides to be higher than the belt conveyor. The inclined rollers on both sides of the belt 20 make the upper belt 20 separate from the inclined rollers and the middle flat roller. Then, a group of inclined rollers and flat rollers that need to be replaced on the belt conveyor can be replaced. After a group of rollers are replaced, a pair of upper roller fixtures 40 for online replacement of the upper rollers of the belt conveyor are rotated by rotating the gear 432 to lower the rack 431 and separate the roller 41 from the upper belt, so that all the rollers in a group support the upper belt. Then, the fixing seat 45 is loosened, the upper roller fixture 40 is removed, and the online replacement of a group of rollers of the belt conveyor is completed.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tool for online replacement of the upper roller of a belt conveyor, characterized in that: The tooling includes: a roller, a roller bracket, a telescopic mechanism for adjusting the height of the roller, a tilt adjustment mechanism and a fixed seat for adjusting the tilt angle of the roller. The upper end of the roller bracket is provided with a fixing groove for installing the roller, the lower end of the roller bracket is fixedly connected to the upper end of the telescopic mechanism, the lower end of the telescopic mechanism is connected to the tilt adjustment mechanism, the end of the tilt adjustment mechanism away from the telescopic mechanism is connected to the fixed seat, and the fixed seat is used to be fixed on the crossbeam near the upper roller to be replaced; the telescopic mechanism is a gear rack adjustment structure , the telescopic mechanism includes a rack, a gear, a gear shaft, a gear shaft support frame and a gear shaft seat, the top end of the rack is fixedly connected to the bottom of the roller bracket, the gear and the rack are meshed, and the gear is arranged on the gear shaft or the gear and the gear shaft are integrally formed, the gear shaft is arranged on the gear shaft seat, the gear shaft seat is arranged on the gear shaft support frame, and the bottom end of the gear shaft support frame is fixedly connected to the tilt adjustment mechanism; a guide rail pair is provided between the gear shaft support frame and the roller bracket to ensure effective meshing between the gear and the rack; The tilt adjustment mechanism includes: a support plate 1 and a support plate 2 connected by a hinge shaft, wherein the top end of the support plate 1 is fixedly connected to the bottom end of the gear shaft support frame, and the bottom end of the support plate 2 is fixedly connected to the fixing seat; The support plate 1 and the support plate 2 are connected by any of the following methods: (1) The support plate 1 and the support plate 2 are respectively provided with a plurality of through holes at positions away from the twisting shaft, and a clamping member is engaged with the through holes at a plurality of different positions to enable the support plate 1 and the support plate 2 to rotate relative to each other around the twisting shaft; (2) The support plate 1 and the support plate 2 are both provided with a limiting slot with the twist shaft as the center line at a position away from the twist shaft. The support plate 1 and the support plate 2 rotate relative to each other around the twist shaft and can be limited and fixed at any appropriate relative position of the two limiting slots to adapt to the adjustment and fixation of the angle.

2. The tooling for online replacement of the upper supporting roller of a belt conveyor according to claim 1 is characterized in that: The clamping member is a bolt or a clamping rod; and the plurality of through holes are arranged in a single row at different heights.

3. The tool for online replacement of the upper supporting roller of a belt conveyor according to claim 2, characterized in that: The through hole on the first support plate has the same shape as the through hole on the second support plate.

4. The tool for online replacement of the upper supporting roller of a belt conveyor according to claim 1, characterized in that: The limiting slots are fixed by arranging bolts.

5. A method for replacing the upper supporting roller online, characterized in that: The method comprises using the tooling according to any one of claims 1 to 4 to replace the upper supporting wheel online, and the method comprises: First, fix the fixing seat of the tooling on the front, rear or both sides of the beam adjacent to the upper roller to be replaced, adjust the angle through the tilt adjustment mechanism, so that the roller on the tooling is parallel to the inclined rollers on one side or both sides above the upper roller to be replaced, and adjust the telescopic mechanism so that the roller is higher than the inclined roller, so that the upper belt is separated from the inclined roller and / or the middle flat roller. After replacing the inclined roller and / or the flat roller, adjust the telescopic mechanism so that the roller on the tooling is separated from the upper belt.

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