Finish rolling working roll bearing seat traveling wheel shaft

Abstract

The utility model provides a finish rolling working roll bearing seat travelling wheel shaft, which belongs to the technical field of hot rolling strip steel rolling mills and comprises a travelling wheel shaft body, a sealing anti-falling shaft shoulder is arranged in the middle of the travelling wheel shaft body, and when a travelling wheel bearing, the travelling wheel shaft body and the inner side of the travelling wheel bearing are assembled together in a sealing mode, the travelling wheel shaft body is connected with the travelling wheel bearing. And the inner side of the travelling wheel bearing is pressed against the sealing anti-falling shaft shoulder in a sealing manner. The utility model has the beneficial effects that the inner side seal of the traveling wheel bearing can be effectively prevented from falling off, and the risks of water inflow of the traveling wheel bearing and damage and failure of a rolling body can be effectively reduced; and the service life of the traveling wheel shaft can be prolonged, and the consumption of spare part materials is reduced, so that the defects of the existing traveling wheel device that water is easy to enter a traveling wheel bearing to damage a ring, and the consumption of spare part materials is large are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-rolled strip steel mills, and in particular relates to a running wheel shaft of a finishing rolling work roll bearing seat. Background Art

[0002] At present, in order to realize the rapid roll changing operation on the machine, the existing finishing mill is generally equipped with a wheel device at the bearing seat of the finishing roll, the core working component. The wheel device is mainly composed of a wheel shaft, a wheel bearing and a wheel accessory, and generally a ring seal is provided on both sides of the wheel device to prevent water from entering the rolling element of the wheel bearing.

[0003] However, since the existing finishing work roll bearing seat wheel shaft structure is relatively simple, it is prone to the following problems: 1. When installing the wheel device, the outer seal of the wheel bearing in the existing wheel device is pressed by the wheel shaft end cover, and the inner seal of the wheel bearing has no pressing and anti-drop protection device, and there is a 10mm gap between the inner seal of the wheel bearing and the bearing seat; therefore, during its use, the inner seal of the wheel bearing is often affected by external force and falls off; and because it is difficult to check and find the inner seal of the wheel after it falls off, and it is difficult to install and restore, after the inner seal of the wheel bearing falls off, when a large amount of cooling water impacts the roller and the bearing seat, Cooling water can easily flow into the rolling body of the walking wheel bearing, causing the lubricating grease in the rolling body of the walking wheel bearing to fail, and causing rust on the surface of the rolling body, making it easy to produce dry friction and jamming when in operation, which in turn causes damage and failure of the rolling body of the walking wheel bearing; 2. The existing walking wheel device is prone to derailment during operation, and is locally hit by external forces during roller hoisting operations, which causes abnormal stress on the outer end cover of the walking wheel shaft, resulting in the bolt holes on the end face of the walking wheel shaft being cut off, resulting in the problem of difficulty in removing the bolts or tearing of the bolt holes, and making it impossible to tighten and continue to use the walking wheel end cover. Utility Model Content

[0004] The purpose of the utility model is to propose and design a finishing rolling work roll bearing seat running wheel shaft in view of the above-mentioned problems existing in the existing running wheel device, so as to overcome the above-mentioned defects, thereby reducing the number of damages of the finishing rolling work roll bearing seat running wheel shaft and the running wheel bearing assembly, reducing the consumption of spare parts and materials, reducing the workload of on-site maintenance operations, and increasing the service life of the running wheel shaft.

[0005] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is: a running wheel shaft of a finishing work roll bearing seat, which includes a running wheel shaft body, and a sealing anti-slip shoulder is arranged in the middle of the running wheel shaft body, and when the running wheel bearing, the running wheel shaft body and the inner seal of the running wheel bearing are assembled together, the inner seal of the running wheel bearing is pressed against the sealing anti-slip shoulder, thereby eliminating the space for the seal to fall off, and effectively avoiding the falling off of the inner seal of the running wheel bearing, and effectively reducing the risk of water ingress and rolling element damage and failure of the running wheel bearing.

[0006] Furthermore, the thickness of the sealing anti-slip shoulder is 10 mm, and is adapted to the gap between the inner seal of the running wheel bearing and the bearing seat.

[0007] Furthermore, the diameter of the sealing anti-slip shoulder is 95 mm and is compatible with the size of the inner ring of the running wheel bearing.

[0008] Furthermore, both ends of the sealing anti-slip shoulder are provided with chamfers.

[0009] Furthermore, the chamfer angle is 45 degrees.

[0010] Furthermore, the end surface of the wheel shaft body is evenly provided with at least two groups of fastening bolt holes, each group of fastening bolt holes is provided with at least two fastening bolt holes, and when the wheel shaft gland is normally installed, only one group of fastening bolt holes needs to be used. In this way, when a group of fastening bolt holes on the end surface of the wheel shaft body is damaged and cannot be fastened normally, the utility model only needs to grind the damaged group of fastening bolt holes on the end surface of the wheel shaft body to make it smooth, and then rotate the wheel shaft gland to a corresponding angle, so that another group of spare fastening bolt holes can be used to re-tighten the wheel shaft gland, thereby extending the service life of the wheel shaft.

[0011] Furthermore, the end surface of the running wheel shaft body is evenly provided with two groups of fastening bolt holes, each group of fastening bolt holes is provided with four fastening bolt holes, and at this time, when the spare fastening bolt holes are activated, it is only necessary to rotate the running wheel shaft pressure cover 45 degrees.

[0012] It can be seen from the above technical scheme that the utility model has the following advantages: 1. The utility model can effectively prevent the inner side seal of the walking wheel bearing from falling off, and effectively reduce the risk of water ingress into the walking wheel bearing and damage and failure of the rolling element; 2. When a group of fastening bolt holes on the end face of the walking wheel shaft is damaged and cannot be tightened normally, the utility model only needs to grind the damaged group of fastening bolt holes on the end face of the walking wheel shaft to make it smooth, and then rotate the walking wheel shaft pressure cover to a corresponding angle, and then activate another group of spare fastening bolt holes to re-tighten the walking wheel shaft pressure cover, thereby extending the service life of the walking wheel shaft and reducing the consumption of spare parts materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a front view of a specific implementation mode of the utility model;

[0015] Figure 2 It is a side view of a specific implementation method of the utility model.

[0016] In the figure: 1. Wheel shaft body; 2. Sealing anti-slip shoulder; 3. Chamfer; 4. Fastening bolt hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 2 As shown, the utility model provides a wheel shaft of a finishing work roll bearing seat, which includes a wheel shaft body 1, a sealing anti-slip shoulder 2 is provided in the middle of the wheel shaft body 1, and the thickness of the sealing anti-slip shoulder 2 is the same as the gap between the inner seal of the wheel bearing and the bearing seat, and the diameter of the sealing anti-slip shoulder 2 is equal to or greater than the diameter of the inner ring of the wheel bearing, even if the thickness of the sealing anti-slip shoulder 2 is 10 mm, the diameter of the sealing anti-slip shoulder 2 is 95 mm. In this way, when the wheel bearing, the wheel shaft body 1, and the inner seal of the wheel bearing are assembled together, the inner seal of the wheel bearing can be pressed against the sealing anti-slip shoulder 2, thereby eliminating the seal falling-off space, and effectively avoiding the inner seal of the wheel bearing from falling off, and effectively reducing the risk of water ingress and rolling element damage and failure of the wheel bearing.

[0019] In addition, the utility model also has at least two groups of fastening bolt holes 4 evenly arranged along the circumferential direction on the end face of the walking wheel shaft body 1, each group of fastening bolt holes 4 is provided with at least two fastening bolt holes 4, and when the walking wheel shaft gland is installed normally, it only needs to use one group of fastening bolt holes 4. In this way, when a group of fastening bolt holes 4 on the end face of the walking wheel shaft body 1 is damaged and cannot be fastened and used normally, the utility model only needs to grind the damaged group of fastening bolt holes 4 on the end face of the walking wheel shaft body 1 to make it smooth, and then rotate the walking wheel shaft gland to a corresponding angle, so as to activate another group of spare fastening bolt holes 4 to re-tighten the walking wheel shaft gland, thereby extending the service life of the walking wheel shaft. Specifically, taking the end face of the walking wheel shaft body 1 as an example in which two groups of fastening bolt holes 4 are evenly arranged, and each group of fastening bolt holes 4 is provided with four fastening bolt holes 4, when the spare fastening bolt holes 4 are activated, it is only necessary to rotate the walking wheel shaft gland by 45 degrees.

[0020] Based on this, the utility model can effectively prevent the inner side seal of the running wheel bearing from falling off, and effectively reduce the risk of water ingress into the running wheel bearing and rolling element damage and failure; it can also extend the service life of the running wheel shaft and reduce the consumption of spare parts and materials, thereby overcoming the defects of the existing running wheel device, such as the running wheel bearing being easily damaged by water ingress and the large consumption of spare parts and materials.

[0021] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0022] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A running wheel shaft of a finishing rolling work roll bearing seat, comprising a running wheel shaft body; characterized in that: A sealing anti-slip shoulder is provided in the middle of the running wheel shaft body, and when the running wheel bearing, the running wheel shaft body and the inner seal of the running wheel bearing are assembled together, the inner seal of the running wheel bearing is pressed against the sealing anti-slip shoulder.

2. The finishing rolling work roll bearing seat running wheel shaft according to claim 1, characterized in that: The thickness of the sealing anti-slip shoulder is 10 mm.

3. The finishing rolling work roll bearing seat running wheel shaft according to claim 1, characterized in that: The diameter of the sealing anti-slip shoulder is 95 mm.

4. The finishing rolling work roll bearing seat running wheel shaft according to claim 1, characterized in that: Both ends of the sealing anti-slip shoulder are provided with chamfers.

5. The finishing rolling work roll bearing seat running wheel shaft according to claim 4, characterized in that: The chamfer angle is 45 degrees.

6. The finishing rolling work roll bearing seat running wheel shaft according to any one of claims 1 to 5, characterized in that: The end surface of the walking wheel shaft body is evenly provided with at least two groups of fastening bolt holes, and each group of fastening bolt holes is provided with at least two fastening bolt holes.

7. The finishing rolling work roll bearing seat running wheel shaft according to claim 6, characterized in that: The end surface of the walking wheel shaft body is evenly provided with two groups of fastening bolt holes, and each group of fastening bolt holes is provided with four fastening bolt holes.

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