Roller changing trolley
By connecting the rollers with an eccentric shaft and adjusting their position relative to the guide rail, the problem of difficulty in controlling the gap between the rollers and the guide rail caused by the increase in the length of the annealing kiln rollers was solved, achieving stable operation and reducing sag deflection.
Patent Information
- Application Number
- CN202423209695.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the prior art, the increased length of the annealing kiln rollers makes it difficult to control the appropriate gap between the rollers and the guide rails, resulting in difficulty in the movement of the trough or vibration, and an increase in the downward deflection of the cantilever front end.
An eccentric shaft is used to connect the rollers. By rotating the main body of the eccentric shaft within the central hole of the roller, the position of the roller relative to the guide rail is adjusted, achieving precise clearance control. Furthermore, the relative rotation of the inner and outer rings of the bearing further adjusts the overall position of the roller, ensuring that the clearance between the roller and the guide rail is at its optimal state.
It achieves precise adjustment of the gap between the roller and the guide rail, avoids jamming and vibration, reduces the drooping deflection at the front end of the cantilever carriage, meets the stable operation under different working conditions, and has a simple structure and is easy to adjust.
Smart Images
Figure CN223591695U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material processing and mechanical engineering technical field, especially relates to a roll changing trolley. BACKGROUND
[0002] The annealing furnace roll changing trolley includes a trolley groove and four sets of rollers arranged at the rear end of the trolley groove. The trolley groove is used for arranging the annealing furnace rollers. The trolley groove can move linearly on the guide rail to realize the installation and dismounting of the annealing furnace rollers.
[0003] With the progress of glass manufacturing process technology, the glass plate is wider and wider, and the roller is longer and longer. At present, the length of the annealing furnace roller is nearly 9 meters. Since the trolley groove is in a cantilever state during the advancing of the roller, the longer the roller is, the greater the cantilever of the trolley groove is when the roller is loaded into the annealing furnace. The gap adjustment between the four sets of rollers at the rear of the trolley groove and the guide rail is very important. If the gap between the rollers and the guide rail is too small, the trolley groove is difficult to advance; if the gap is too large, the trolley groove shakes during the advancing. Meanwhile, the longer the cantilever of the trolley groove is, the smaller the angle between the rollers and the guide rail is, and the greater the sag deflection of the front end of the cantilever of the trolley groove is. However, due to the manufacturing and assembly errors of the guide rail and the rollers, it is difficult to control the reasonable gap between the rollers and the guide rail. SUMMARY
[0004] The utility model discloses a roll changing trolley, which is simple in structure and convenient for adjusting the gap between the rollers and the guide rail.
[0005] To solve the above technical problems, the utility model discloses a roll changing trolley, which comprises a trolley groove for accommodating rollers, a guide rail arranged below the trolley groove and moving along a first direction relative to the trolley groove, rollers comprising a central hole and / or a bearing and rolling on the guide rail, and an eccentric shaft comprising a main body part and an eccentric part connected to each other, with the axis of the main body part and the axis of the eccentric part being parallel and not overlapping, the main body part passing through the central hole of the roller to be movably connected with the roller, or the main body part being fixedly connected with the inner ring of the bearing, and the end of the eccentric part away from the main body part being fixedly connected with the trolley groove.
[0006] By adopting the above technical scheme, the eccentric shaft is connected with the roller, when the main body part directly passes through the central hole of the roller to be movably connected with the roller, the operator rotates the eccentric shaft to rotate the main body part in the central hole of the roller, the rotation of the main body part causes the relative movement of the roller, and then the position of the roller relative to the guide rail changes, for example, the roller moves upward or downward relative to the guide rail, that is, the gap between the roller and the guide rail is adjusted.
[0007] When the main body part is fixedly connected with the inner ring of the bearing, the inner ring and the outer ring of the bearing can rotate relative to the eccentric shaft.
[0008] The adjustment mechanism can ensure that the gap between the roller and the guide rail is always in the best state, ensuring that the roller does not jam and vibrate when moving on the guide rail, and meeting the operation requirements in different working conditions. Meanwhile, the sagging deflection of the front end of the suspension trolley is reduced. The roll changing trolley has simple structure and is convenient to adjust.
[0009] According to another specific embodiment of the utility model, the fixed frame is located below the trolley groove and is fixedly connected with the trolley groove; the fixed frame is provided with a mounting hole; one end of the main body part away from the eccentric part is provided with a shaft shoulder; one end of the eccentric part away from the main body part passes through the mounting hole and is connected with a nut.
[0010] By adopting the above technical scheme, the roller is located between the shaft shoulder and the fixed frame, thereby limiting the roller to roll and drive the fixed frame and the trolley groove to move.
[0011] According to another specific embodiment of the utility model, the fixed frame comprises a transverse plate and a side plate which are connected perpendicularly; the transverse plate is located below the trolley groove and is fixedly connected with the trolley groove; the side plate is perpendicular to the guide rail; and the mounting hole is arranged on the side plate.
[0012] According to another specific embodiment of the utility model, the transverse plate is welded with the trolley groove.
[0013] According to another specific embodiment of the utility model, the eccentric part of the eccentric shaft is gap-fitted with the mounting hole.
[0014] By adopting the above technical scheme, the eccentric part of the eccentric shaft is allowed to have a certain space for movement in the mounting hole, thereby facilitating adjustment of the gap between the roller and the guide rail. In addition, the gap-fitting of the eccentric part of the eccentric shaft with the mounting hole also reduces interference during assembly, can reduce stress in the assembly process, and avoids deformation or damage caused by over-tight fitting.
[0015] According to another specific embodiment of the utility model, the distance between the axis of the main body part and the axis of the eccentric part is 1mm to 2mm.
[0016] According to another specific embodiment of the utility model, the roller changing trolley comprises four groups of roller sets, the four groups of roller sets are distributed in a rectangular shape in the first direction and the second direction, each group of roller sets comprises two rollers, the two rollers are located above and below the guide rail respectively and are used for rolling relative to the guide rail, and the second direction is perpendicular to the first direction.
[0017] By adopting the technical scheme, the four groups of roller sets are arranged at the fixed end of the trolley groove, that is, the end not extending into the annealing furnace, so that the trolley groove is driven to move and is supported together with the guide rail.
[0018] According to another specific embodiment of the utility model, the utility model also comprises a vehicle frame, the vehicle frame is located below the guide rail and is used for supporting the guide rail.
[0019] According to another specific embodiment of the utility model, the utility model also comprises a wheel, the wheel is connected with the vehicle frame.
[0020] By adopting the technical scheme, the wheel moves and drives the movement of the whole roller changing trolley. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 A perspective view of the roller changing trolley is shown in the embodiment of the utility model;
[0022] Figure 2 A front view of the roller changing trolley is shown in the embodiment of the utility model;
[0023] Figure 3 A side view of the roller changing trolley is shown in the embodiment of the utility model;
[0024] Figure 4 A schematic view of the eccentric shaft and the roller cooperation is shown in the embodiment of the utility model. PREFERRED EMBODIMENT
[0025] The embodiments of the utility model will be described below by specific examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the description. Although the description of the utility model will be introduced in combination with the preferred embodiments, this does not mean that the features of the utility model are limited to the embodiments. On the contrary, the purpose of introducing the utility model in combination with the embodiments is to cover other options or modifications that can be extended based on the claims of the utility model. In order to provide a deep understanding of the utility model, many specific details will be contained in the following description. The utility model can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the utility model, some specific details will be omitted in the description. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0026] It should be noted that in the present specification, similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
[0027] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0028] The terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.
[0030] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below with reference to the drawings.
[0031] Reference Figure 1 and Figure 2 The present embodiment provides a roll changing trolley 100 for changing the roll 200 in the annealing furnace.
[0032] As Figure 2 and Figure 3 shown, the roll changing trolley 100 includes a trolley groove 300, a guide rail 400, a roller 500 and an eccentric shaft 600. Among them, the trolley groove 300 is used to accommodate the roll 200.
[0033] The guide rail 400 is arranged below the trolley groove 300, and the trolley groove 300 is used to move relative to the guide rail 400 along the first direction X. Exemplarily, the first direction X is the axial direction of the roll 200 carried on the trolley groove 300, and is also the extension direction of the trolley groove 300.
[0034] Reference Figure 4The roller 500 includes a central hole 501, and the roller 500 is used to roll on the guide rail 400. The eccentric shaft 600 includes a main body part 601 and an eccentric part 602 connected with each other, and an axis A of the main body part 601 and an axis B of the eccentric part 602 are parallel and do not overlap; the main body part 601 passes through the central hole 501 of the roller 500 to be connected with the roller 500. That is, the roller 500 is sleeved on the main body part 601.
[0035] An end of the eccentric part 602 away from the main body part 601 is fixedly connected with the trolley groove 300. Illustratively, the roller 500 is used to roll on the guide rail 400 to make the trolley groove 300 extend along the first direction X, and the roller 200 in the trolley groove 300 is extended into the annealing furnace along the first direction X or is retracted along the first direction X to take the roller 200 in the annealing furnace out.
[0036] Illustratively, the main body part 601 is in a cylindrical shape, and the eccentric part 602 includes three cylindrical structures with different outer diameters. The outer diameter of the main body part 601 is greater than the outer diameter of any one of the three cylindrical structures of the eccentric part 602.
[0037] By using the above technical solution, the eccentric shaft 600 is used to connect the roller 500, the operator rotates the eccentric shaft 600 to make the main body part 601 of the eccentric shaft 600 rotate in the central hole 501 of the roller 500, the rotation of the main body part 601 makes the roller 500 relatively move, and then the position of the roller 500 relative to the guide rail 400 changes, for example, the roller 500 moves upward or downward relative to the guide rail 400, that is, the gap between the roller 500 and the guide rail 400 is adjusted, so that the precise gap control is realized. This adjustment mechanism can ensure that the gap between the roller 500 and the guide rail 400 is always kept in the best state, and the roller 500 can move on the guide rail 400 without jamming and vibration, and the running requirements under different working conditions are met. At the same time, the sagging deflection of the front end of the cantilever trolley groove 300 is reduced. The roll changing trolley 100 of the present application has a simple structure and is convenient to adjust.
[0038] In some possible embodiments, the roller 500 includes a bearing (not shown in the figure). The inner ring and the outer ring of the bearing can relatively rotate around the eccentric shaft 600. The main body part 601 of the eccentric shaft 600 is fixedly connected with the inner ring of the bearing. When adjusting the gap between the roller 500 and the guide rail 400, the eccentric shaft 600 is rotated to make the main body part 601 of the eccentric shaft 600 drive the inner ring of the bearing to relatively rotate with respect to the outer ring of the bearing, and the rotation of the main body part 601 makes the whole roller 500 relatively move, and then the position of the whole roller 500 relative to the guide rail 400 changes, for example, the roller 500 moves upward or downward relative to the guide rail 400, that is, the gap between the roller 500 and the guide rail 400 is adjusted.
[0039] In some possible embodiments, as shown in Figure 2 and Figure 3 The roll changing trolley 100 further comprises a fixing frame 700, which is located below the trolley groove 300 and fixedly connected with the trolley groove 300. In the embodiment, the fixing frame 700 comprises a horizontal plate 701 and two side plates 702, which are vertically connected and welded on two sides of the horizontal plate 701 in the second direction Y perpendicular to the first direction X. The horizontal plate 701 is located below the trolley groove 300 and fixedly connected with the trolley groove 300. For example, the horizontal plate 701 is welded with the bottom of the trolley groove 300.
[0040] As shown in Figures 2 to 4 The side plate 702 is perpendicular to the guide rail 400, and the side plate 702 is provided with a mounting hole (not numbered in the figure) penetrating in the second direction Y. One end of the main body part 601 of the eccentric shaft 600 is provided with a shaft shoulder 603, and the eccentric part 602 is connected with the nut 900 by penetrating the mounting hole and away from the main body part 601. The roller 500 is located between the shaft shoulder 603 and the side plate 702 of the fixing frame 700, so as to limit the roller 500 and drive the fixing frame 700 and the trolley groove 300 to move by rolling the roller 500.
[0041] For example, the distance e between the axis A of the main body part 601 and the axis B of the eccentric part 602 of the eccentric shaft 600 forms the eccentricity of the eccentric shaft 600. The end of the eccentric part 602 away from the main body part 601 is provided with a threaded part 604, which extends out of the mounting hole to be threadedly connected with the nut 900.
[0042] The eccentricity e of the eccentric shaft 600 is 1mm to 2mm. In the embodiment, the eccentricity e of the eccentric shaft 600 is 1.5mm. That is, the operator can adjust the gap between the roller 500 and the guide rail 400 within the size of 0-1.5mm. However, those skilled in the art can understand that in other embodiments, the eccentricity e of the eccentric shaft 600 can also be selected as 1mm, 1.2mm, 1.4mm, 1.6mm, etc.
[0043] In some embodiments, the eccentric part 602 of the eccentric shaft 600 is gap-fitted with the mounting hole, so as to allow the eccentric part 602 of the eccentric shaft 600 to have a certain activity space in the mounting hole, thereby facilitating the adjustment of the gap between the roller 500 and the guide rail 400. In addition, the gap-fitting of the eccentric part 602 of the eccentric shaft 600 with the mounting hole also reduces the interference during assembly, so as to reduce the stress in the assembly process and avoid deformation or damage caused by over-tight fitting.
[0044] Referring to Figure 1 and Figure 3In some possible embodiments, the roll changing trolley 100 comprises four groups of roller sets, corresponding to Figure 1 The four groups of roller sets are distributed in a rectangular shape in the first direction X and the second direction Y; each group of roller sets comprises two rollers 500, which are respectively located above and below the guide rail 400 and are both used for rolling relative to the guide rail 400. Exemplarily, the four groups of roller sets are all arranged at the fixed end of the trolley groove 300, that is, the end not extending into the annealing furnace, so as to drive the trolley groove 300 to move while providing support for the trolley groove 300 together with the guide rail 400.
[0045] Reference is made to Figure 1 In some possible embodiments, the roll changing trolley 100 further comprises a trolley frame 800 and trolley wheels 801, the trolley frame 800 is located below the guide rail 400 and is used for supporting the guide rail 400. The trolley wheels 801 are connected to the trolley frame 800.
[0046] Exemplarily, the trolley frame 800 is in a rectangular shape, and each corner of the trolley frame 800 is connected with a trolley wheel 801, so as to drive the movement of the entire roll changing trolley 100 by rotating the trolley wheels 801.
[0047] Although the utility model has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above is further detailed description of the utility model in combination with specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple inferences or substitutions, without departing from the spirit and scope of the utility model.
Claims
1. A roll changing trolley, characterized in that, The utility model relates to a roller changing trolley, comprising: a trolley for accommodating a roller; a guide rail arranged below the trolley, the trolley being configured to move relative to the guide rail in a first direction; a roller comprising a central hole and / or a bearing, the roller being configured to roll on the guide rail; an eccentric shaft comprising a main body portion and an eccentric portion connected to each other, an axis of the main body portion and an axis of the eccentric portion being parallel and not overlapping, the main body portion passing through the central hole of the roller to be movably connected to the roller or the main body portion being fixedly connected to an inner ring of the bearing, an end of the eccentric portion away from the main body portion being fixedly connected to the trolley.
2. The roll changing trolley of claim 1, wherein The utility model further comprises a fixing frame arranged below the trolley and fixedly connected to the trolley, the fixing frame being provided with a mounting hole, an end of the main body portion away from the eccentric portion being provided with a shaft shoulder, and the end of the eccentric portion away from the main body portion passing through the mounting hole and being connected to a nut.
3. The roll changing trolley of claim 2, wherein, The fixing frame comprises a horizontal plate and a side plate connected perpendicularly, the horizontal plate being arranged below the trolley and fixedly connected to the trolley, the side plate being perpendicular to the guide rail, and the mounting hole being arranged on the side plate.
4. The roll changing trolley of claim 3, wherein The horizontal plate is welded to the trolley.
5. The roll changing trolley of claim 3, wherein, The eccentric portion of the eccentric shaft is in clearance fit with the mounting hole.
6. The roll changing trolley of claim 3, wherein, The distance between the axis of the main body portion and the axis of the eccentric portion is 1mm to 2mm.
7. The roll changing trolley of claim 1 wherein, The roller changing trolley comprises four groups of rollers, the four groups of rollers being arranged in a rectangular shape in the first direction and a second direction, each group of rollers comprising two rollers arranged above and below the guide rail respectively and configured to roll relative to the guide rail, and the second direction being perpendicular to the first direction.
8. The roll changing trolley of claim 1 wherein, The utility model further comprises a trolley frame arranged below the guide rail and configured to support the guide rail.
9. The roll changing trolley of claim 8, wherein, The utility model further comprises a wheel connected to the trolley frame.