Quick mounting structure for wheels of coil stripping trolley

Abstract

The utility model provides a coil stripping trolley wheel quick installation structure, which comprises an auxiliary disassembly and assembly component, a wheel axle and two wheel units, each wheel unit comprises a wheel, a bearing component, an inner pressing plate and an annular outer pressing plate, and the auxiliary disassembly and assembly component comprises a screw rod, a top disc, a nut and a sleeve. In this way, when the wheel is installed, the lead screw is used as an installation platform, the operation space can be prolonged, the device is very suitable for the narrow environment of the coil stripping trolley, the nut is screwed through the sleeve, the inner pressing plate and the annular outer pressing plate are sequentially pushed inwards through the top disc, the pressing effect is exerted, and operation is convenient; when the bearing assembly is installed, a modified wheel unit is combined, the outer ring of the bearing assembly is tightly pressed by the annular outer pressing plate, and meanwhile, the inner ring of the bearing assembly is tightly pressed by the inner pressing plate, so that the inner ring and the outer ring of the bearing assembly are stressed at the same time, and the phenomenon of outward ejection is avoided; after installation, the auxiliary dismounting assembly is rapidly dismounted, then the inner pressing plate is tightened to complete installation, the whole process is time-saving and labor-saving, and the maintenance period is shortened.

Description

Technical Field

[0001] This utility model relates to the field of unloading trolley technology, and in particular to a quick-installation structure for the wheels of an unloading trolley. Background Technology

[0002] The hot-rolled steel continuous casting and rolling uncoiling trolley is located directly below the coiler. It can remove the coiled steel coil from the coiling mandrel and transfer it to the lifting trolley. The uncoiling trolley is constantly exposed to high-temperature and high-heat cooling water, so the operating conditions of its wheel axle bearings are relatively harsh, resulting in a relatively short service life and easy damage.

[0003] The bearings in the wheels of the unloading trolley are typically tapered roller bearings mounted back-to-back. The general on-site repair procedure involves carefully tapping the inner ring and rolling elements of the inner bearing into the wheel axle shoulder, then inserting the bearing inner ring spacer; next, carefully tapping the outer bearing ring into the corresponding position on the wheel and inserting the outer bearing spacer; then tapping the other outer bearing ring in the opposite direction; finally, installing the wheel onto the axle. However, because there is no mutual support force, the outer rings cannot encounter resistance when being installed on the axle, otherwise they will be pushed out. Current technology uses a counter-pressure force by tapping the other, oppositely mounted bearing inner ring into its installation position. However, because the workspace of the unloading trolley is relatively compact, large tools cannot be used for on-site repairs, making the repair difficult, inconvenient, and time-consuming, thus affecting repair efficiency.

[0004] Therefore, it is necessary to propose a quick-installation structure for the wheels of the unloading trolley to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a quick installation structure for the wheels of the unwinding trolley, so as to solve the problem that the repair operation of the wheels of the unwinding trolley in the prior art is inconvenient and results in low repair efficiency.

[0006] To achieve the above objectives, this utility model provides a quick-installation structure for the wheels of an unloading trolley, including an auxiliary disassembly and assembly assembly, a wheel axle, and two wheel units arranged axially opposite to each other along the wheel axle; wherein,

[0007] Each wheel unit includes a wheel, a bearing assembly, an inner pressure plate, and an annular outer pressure plate. The wheel is sleeved and connected to the end of the wheel axle. The outer end of the wheel is recessed inward to form an annular groove. The bearing assembly is connected to the annular groove, and the bearing assembly has inner and outer rings spaced apart along its own radial direction.

[0008] The end of the wheel axle and the inner pressure plate are both provided with first bolt holes. The inner pressure plate abuts against the inner ring of the bearing assembly and is connected to the end of the wheel axle by bolts. The outer end of the wheel and the annular outer pressure plate are both provided with second bolt holes. The inner side of the annular outer pressure plate abuts against the outer ring of the bearing assembly, and the annular outer pressure plate is connected to the outer end of the wheel by bolts.

[0009] The auxiliary assembly / disassembly components include a lead screw, a top plate, a nut, and a sleeve. The end of the wheel axle has a countersunk hole through which the lead screw passes. The inner pressure plate and the top plate both have through holes corresponding to the countersunk hole. The first end of the lead screw extends through the through hole and is connected to the countersunk hole. The top plate is sleeved on the lead screw and is used to abut against the outer end of the annular outer pressure plate. The top plate has a third bolt hole corresponding to the first bolt hole. The nut is rotatably connected to the lead screw. The sleeve is sleeved on the second end of the lead screw, and the inner end of the sleeve is sleeved on the nut to push the top plate toward the annular outer pressure plate.

[0010] Preferably, the inner side of the annular outer pressure plate is provided with an annular flange, which is used to abut against the outer ring of the bearing assembly.

[0011] Preferably, a boss is formed on the side of the top plate away from the annular outer pressure plate.

[0012] Preferably, the device further includes a plurality of stiffening plates, which are connected between the boss and the top plate, and the plurality of stiffening plates are arranged at intervals along the circumference of the top plate.

[0013] Preferably, the top plate is also provided with a plurality of observation holes, which are arranged at intervals along the circumference of the top plate.

[0014] Preferably, each wheel unit further includes an end cap that is sealed to the inner ring side of the annular outer pressure plate.

[0015] Preferably, the inner ring side of the annular outer pressure plate has an internal thread, and the end cap near the annular outer pressure plate has an external thread. The end cap is threaded to the inner ring side of the annular outer pressure plate.

[0016] Preferably, there are four first bolt holes, which are spaced apart circumferentially along the wheel axle.

[0017] Preferably, the length of the sleeve is 30cm to 40cm.

[0018] Preferably, the number of the second bolt holes is six, and the six second bolt holes are arranged at intervals along the circumference of the wheel.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model provides a quick-installation structure for the wheels of a winding unloading trolley, including an auxiliary disassembly and assembly component, a wheel axle, and two wheel units arranged axially opposite each other along the wheel axle. Each wheel unit includes a wheel, a bearing assembly, an inner pressure plate, and an annular outer pressure plate. The wheel is sleeved and connected to the end of the wheel axle. The outer end of the wheel is recessed inward to form an annular groove. The bearing assembly is connected in the annular groove and has an inner ring and an outer ring spaced apart along its own radial direction. The end of the wheel axle and the inner pressure plate are provided with first bolt holes. The inner pressure plate abuts against the inner ring of the bearing assembly and is connected to the end of the wheel axle by bolts. The outer end of the wheel and the annular outer pressure plate are provided with second bolt holes. The inner side of the annular outer pressure plate abuts against the outer ring of the bearing assembly, and the annular outer pressure plate is bolted to the outer end of the wheel. The auxiliary disassembly and assembly components include a lead screw, a top plate, a nut, and a sleeve. The end of the wheel axle is provided with a countersunk hole for the lead screw to pass through. The inner pressure plate and the top plate are both provided with through holes corresponding to the countersunk hole. The first end of the lead screw extends into the countersunk hole through the through hole. The top plate is sleeved on the lead screw and is used to abut against the outer end of the annular outer pressure plate. The top plate is provided with a third bolt hole corresponding to the first bolt hole. The nut is rotatably connected to the lead screw. The sleeve is sleeved on the second end of the lead screw, and the inner end of the sleeve is sleeved on the nut to push the top plate toward the annular outer pressure plate. When installing wheels, using the lead screw as an installation platform extends the operating space, making it ideal for the narrow environment of the unloading trolley. By combining the sleeve with the tightened nut, the inner pressure plate and the annular outer pressure plate are pushed inward sequentially through the top plate, applying a clamping effect, which is convenient to operate. When installing bearing assemblies, the modified wheel unit structure uses the annular outer pressure plate to press the outer ring of the bearing assembly, while bolts passing through the third bolt hole and the first bolt hole press the inner pressure plate to press the inner ring of the bearing assembly. In this way, the inner and outer rings of the bearing assembly are subjected to force simultaneously, preventing outward pushing and reducing damage to the rolling elements. After installation, the auxiliary disassembly and assembly components can be quickly removed, and the bolt in the first bolt hole can be tightened to complete the installation. The entire process is time-saving and labor-saving, significantly shortening the maintenance cycle and reducing labor intensity. Attached Figure Description

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

[0022] Figure 1This is a three-dimensional schematic diagram of the overall structure of a wheel unit in one embodiment of the present invention during installation.

[0023] Figure 2 This is a cross-sectional schematic diagram of the overall structure of the present invention when a wheel unit is installed in one embodiment of the present invention.

[0024] Figure 3 This is an exploded view of the wheel unit during installation in one embodiment of the present invention.

[0025] Figure 4 This is a cross-sectional schematic diagram of the annular outer pressure plate in one embodiment of the present invention;

[0026] Figure 5 This is a three-dimensional schematic diagram of the top plate in one embodiment of the present invention.

[0027] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0028] Explanation of icon numbers:

[0029] 10. Auxiliary assembly / disassembly components; 110. Lead screw; 120. Top plate; 121. Third bolt hole; 122. Boss; 123. Rib plate; 124. Observation hole; 130. Nut; 140. Sleeve; 20. Wheel unit; 210. Wheel; 211. Annular groove; 212. Second bolt hole; 220. Bearing assembly; 230. Inner pressure plate; 240. Annular outer pressure plate; 241. Annular flange; 250. End cap; 30. Wheel axle; 310. First bolt hole. Detailed Implementation

[0030] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] Please see the appendix Figure 1-5 This utility model provides a quick-installation structure for an unloading trolley wheel 210, comprising an auxiliary disassembly and assembly component 10, a wheel axle 30, and two wheel units 20 arranged axially opposite to each other along the wheel axle 30. First, it should be noted that in this application, the direction away from the wheel axle center is the outer end, while the direction closer to the wheel axle 30 center is the inner end. This differs from existing methods of repairing the unloading trolley wheel 210 by tapping the inner ring of another bearing mounted opposite to the axle to the installation position to apply a relative compressive force. However, because the workspace of the unloading trolley is relatively compact, large tools cannot be used for on-site repair, resulting in significant repair difficulty, inconvenience, and prolonged repair time, thus affecting repair efficiency. This application addresses the above-mentioned deficiencies in the prior art by providing a quick-installation structure for the unloading trolley wheel 210, as detailed below:

[0035] Each wheel unit 20 includes a wheel 210, a bearing assembly 220, an inner pressure plate 230, and an annular outer pressure plate 240. The wheel 210 is sleeved and connected to the end of the wheel axle 30. The outer end of the wheel 210 is recessed inward to form an annular groove 211. The bearing assembly 220 is connected to the annular groove 211, and the bearing assembly 220 has an inner ring and an outer ring spaced apart along its own radial direction. The end of the wheel axle 30 and the inner pressure plate 230 are each provided with a first bolt hole 310. The inner pressure plate 230 abuts against the inner ring of the bearing assembly 220 and is bolted to the end of the wheel axle 30. The outer end of the wheel 210 and the annular outer pressure plate 240 are each provided with a second bolt hole 212. The inner side of the annular outer pressure plate 240 abuts against the outer ring of the bearing assembly 220, and the annular outer pressure plate 240 is bolted to the wheel axle 30. The outer end of wheel 210; the auxiliary disassembly assembly 10 includes a lead screw 110, a top plate 120, a nut 130, and a sleeve 140. The end of the wheel axle 30 is provided with a countersunk hole through which the lead screw 110 passes. The inner pressure plate 230 and the top plate 120 are both provided with through holes corresponding to the countersunk hole. The first end of the lead screw 110 extends into the countersunk hole through the through hole. The top plate 120 is sleeved on the lead screw 110 and is used to abut against the outer end of the annular outer pressure plate 240. The top plate 120 is provided with a third bolt hole 121 corresponding to the first bolt hole 310. The nut 130 is rotatably connected to the lead screw 110. The sleeve 140 is sleeved on the second end of the lead screw 110, and the inner end of the sleeve 140 is sleeved on the nut 130 to push the top plate 120 toward the annular outer pressure plate 240.

[0036] Specifically, the quick-installation structure for the unloading trolley wheel 210 in this application includes an auxiliary disassembly and assembly component 10, a wheel axle 30, and two wheel units 20 arranged axially opposite each other along the wheel axle 30. The wheel axle 30 and the two wheel units 20 constitute the wheel 210 assembly of the unloading trolley. The auxiliary disassembly and assembly component 10 is used to assist in the installation of the wheel units 20 to improve maintenance and repair efficiency. This application modifies the traditional wheel unit 20 to facilitate disassembly and assembly in conjunction with the auxiliary disassembly and assembly component 10. Each wheel unit 20 specifically includes a wheel 210, a bearing assembly 220, and an inner pressure plate 2. The wheel 210 has an inner pressure plate 230 and an annular outer pressure plate 240. The annular groove 211 inside the wheel 210 is used for the installation and connection of the bearing assembly 220, thereby facilitating the bearing assembly 220 to bear and transmit the load between the wheel 210 and the wheel axle 30. It is understood that the bearing assembly 220 of the wheel 210 usually has two or more bearings, and the bearings are tapered roller bearings, which consist of an inner ring, an outer ring and rolling elements. During installation, due to the limited operating environment of the unloading trolley, the inner ring and the outer ring cannot be subjected to force at the same time. As a result, it often happens that when one ring is installed, the other ring is pushed out. Therefore, this application adds an inner pressure plate 230 and an annular outer pressure plate 240. The outer pressure plate 240 is designed to simultaneously stress both the inner and outer rings, maintaining stability. Therefore, the inner pressure plate 230 is bolted through the first bolt hole 310 to the end of the wheel axle 30, and its outer diameter is set larger than that of the wheel axle 30 to facilitate abutment against the inner ring of the bearing assembly 220. The annular outer pressure plate 240 is bolted through the second bolt hole 212 to the outer end of the wheel 210, and its inner side extends inward to facilitate abutment against the outer ring of the bearing assembly 220. In a preferred embodiment of this utility model, the inner side of the annular outer pressure plate 240 is provided with an annular flange 241, which is used to abut against the outer ring of the bearing assembly 220. In this way, with the cooperation of the inner pressure plate 230 and the annular flange 241 of the annular outer pressure plate 240, the inner and outer rings of the bearing assembly 220 are simultaneously subjected to force to maintain stability and prevent them from being pushed out, thereby reducing damage to the rolling elements. It is worth noting that during installation, due to the limited operating space, the auxiliary disassembly and assembly component 10 is required for installation to improve the convenience and efficiency of operation.

[0037] The auxiliary assembly / disassembly component 10 includes a lead screw 110, a top plate 120, a nut 130, and a sleeve 140. The lead screw 110 extends the operating space and assists in installing various components, allowing the inner pressure plate 230 and the annular outer pressure plate 240 to be fitted onto the lead screw 110. Therefore, a countersunk hole is provided at the end of the wheel axle 30 to facilitate the fixing of the lead screw 110. The countersunk hole is located in the center position. The inner pressure plate 230 and the top plate 120 are also provided with countersunk holes. A through hole corresponding to the countersunk hole facilitates the passage of the lead screw 110. Here, "correspondingly" means that the through hole and the countersunk hole are the same size and shape and are coaxially aligned. The top plate 120 pushes inward to press the inner pressure plate 230 and the annular outer pressure plate 240. The nut 130 is tightened to push the top plate 120 inward. The sleeve 140 is used to engage with the nut 130, with one end fitted onto the nut 130 and the other end for technicians. This allows for... The longer length facilitates operation by technicians. During installation, after the inner pressure plate 230, the annular outer pressure plate 240, and the top plate 120 are fitted onto the lead screw 110, the nut 130 is tightened and the sleeve 140 is fitted. Technicians rotate the sleeve 140 to tighten the nut 130, thereby pushing the top plate 120 to press the inner pressure plate 230 and the outer pressure plate together. Then, by tightening the bolts through the third bolt hole 121 and the first bolt hole 310, the inner pressure plate 230 is pre-positioned against the inner ring of the bearing assembly 220. The outer ring of the bearing assembly 220 is pressed down by the annular outer pressure plate 240 and the top plate 120. Thus, the inner and outer rings of the bearing assembly 220 are subjected to force at the same time. At this time, the annular outer pressure plate 240 can be fixed to the outer end of the wheel 210 by tightening the bolts through the second bolt hole 212. After installation, the sleeve 140, nut 130, top plate 120 and lead screw 110 are removed. Then, the inner pressure plate 230 is fixed to the end of the wheel axle 30 by tightening the bolts through the first bolt hole 310, thus completing the assembly.

[0038] It is worth mentioning that, considering the annular outer pressure plate 240 is ring-shaped with a hollow inner ring, which would expose the inner pressure plate 230, each wheel unit 20 also includes an end cap 250. The end cap 250 is connected to the inner ring side of the annular outer pressure plate 240, and the inner ring side of the annular outer pressure plate 240 has internal threads. The end cap 250 has external threads at one end near the annular outer pressure plate 240. This threaded connection facilitates fastening. After the end cap 250 is also installed, the assembly is complete. Please refer to the appendix for details. Figure 2 In the figure, the left side of the wheel axle 30 shows the structure with the wheel 210 installed and the end cap 250 attached, while the right side of the wheel axle 30 shows the installation structure when the auxiliary disassembly and assembly component 10 is used for assembly.

[0039] In a preferred embodiment of the present invention, a boss 122 is formed on the side of the top plate 120 away from the annular outer pressure plate 240.

[0040] It should be noted that the boss 122 can easily abut against the nut 130 to reduce the gap between the top plate 120 and the nut 130 and improve the pushing effect.

[0041] In a preferred embodiment of the present invention, a plurality of stiffening plates 123 are also included, the stiffening plates 123 being connected between the boss 122 and the top plate 120, and the plurality of stiffening plates 123 are arranged at intervals along the circumference of the top plate 120.

[0042] It is worth noting that the stiffening plate 123 can be used to correct the tilting of the top plate 120 during the pushing process by tapping the stiffening plate 123.

[0043] In a preferred embodiment of the present invention, the top plate 120 is further provided with a plurality of observation holes 124, which are arranged at intervals along the circumference of the top plate 120.

[0044] It is worth noting that the observation hole 124 allows technicians to observe the internal working condition of the top plate 120 in real time.

[0045] Furthermore, there are four first bolt holes 310, which are arranged at intervals along the circumference of the wheel axle 30.

[0046] It should be noted that, considering the small outer diameter and compact structure of the wheel axle 30, while ensuring a stable connection, the number of the first bolt holes 310 is preferably four. Those skilled in the art can select according to actual needs. It is worth mentioning that the third bolt hole 121 corresponds to the first bolt hole 310, so the number of the third bolt holes 121 is also four.

[0047] Furthermore, the length of the sleeve 140 is 30cm to 40cm.

[0048] It should be noted that the sleeve 140 is relatively long, which makes it easier for technicians to operate and thus tighten the nut 130. In a preferred embodiment of this application, the length of the sleeve 140 is 30cm to 40cm, and those skilled in the art can set it according to specific needs.

[0049] Furthermore, there are six second bolt holes 212, which are arranged at intervals along the circumference of the wheel 210.

[0050] It is understood that the outer diameter of the outer end of the wheel 210 is larger than that of the wheel axle 30, but too many holes can easily affect the overall structural strength of the wheel 210. Therefore, it is preferable that the number of the second bolt holes 212 is six, and those skilled in the art can set it according to specific circumstances.

[0051] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A quick-installation structure for the wheels of an unloading trolley, characterized in that, It includes an auxiliary assembly / disassembly component, a wheel axle, and two wheel units arranged axially opposite each other along the wheel axle; wherein, Each wheel unit includes a wheel, a bearing assembly, an inner pressure plate, and an annular outer pressure plate. The wheel is sleeved and connected to the end of the wheel axle. The outer end of the wheel is recessed inward to form an annular groove. The bearing assembly is connected to the annular groove, and the bearing assembly has inner and outer rings spaced apart along its own radial direction. The end of the wheel axle and the inner pressure plate are both provided with first bolt holes. The inner pressure plate abuts against the inner ring of the bearing assembly and is connected to the end of the wheel axle by bolts. The outer end of the wheel and the annular outer pressure plate are both provided with second bolt holes. The inner side of the annular outer pressure plate abuts against the outer ring of the bearing assembly, and the annular outer pressure plate is connected to the outer end of the wheel by bolts. The auxiliary assembly / disassembly components include a lead screw, a top plate, a nut, and a sleeve. The end of the wheel axle has a countersunk hole through which the lead screw passes. The inner pressure plate and the top plate both have through holes corresponding to the countersunk hole. The first end of the lead screw extends through the through hole and is connected to the countersunk hole. The top plate is sleeved on the lead screw and is used to abut against the outer end of the annular outer pressure plate. The top plate has a third bolt hole corresponding to the first bolt hole. The nut is rotatably connected to the lead screw. The sleeve is sleeved on the second end of the lead screw, and the inner end of the sleeve is sleeved on the nut to push the top plate toward the annular outer pressure plate.

2. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, The inner side of the annular outer pressure plate is provided with an annular flange, which is used to abut against the outer ring of the bearing assembly.

3. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, A boss is formed on the side of the top plate away from the annular outer pressure plate.

4. The quick-installation structure for the wheels of the unloading trolley according to claim 3, characterized in that, It also includes multiple stiffening plates, which are connected between the boss and the top plate, and the multiple stiffening plates are arranged at intervals along the circumference of the top plate.

5. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, The top plate is also provided with a plurality of observation holes, which are arranged at intervals along the circumference of the top plate.

6. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, Each wheel unit also includes an end cap that is sealed to the inner ring side of the annular outer pressure plate.

7. The quick-installation structure for the wheels of the unloading trolley according to claim 6, characterized in that, The inner ring side of the annular outer pressure plate has an internal thread, and the end cap near the annular outer pressure plate has an external thread. The end cap is threaded to the inner ring side of the annular outer pressure plate.

8. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, The number of the first bolt holes is four, and the four first bolt holes are arranged at intervals along the circumference of the wheel axle.

9. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, The length of the sleeve is 30cm to 40cm.

10. The quick-installation structure for the wheels of the unloading trolley according to claim 1, characterized in that, The number of the second bolt holes is six, and the six second bolt holes are arranged at intervals along the circumference of the wheel.

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