Bearing mounting structure for a mobile trolley

Abstract

The utility model discloses a bearing mounting structure of mobile dolly, including the wheel frame of mobile dolly still includes setting in the bearing assembly of wheel frame, and bearing assembly includes bearing seat and the bearing of assembly in bearing seat, and bearing is used for installing the axle of mobile dolly, and the outer wall of bearing seat has at least two mounting surfaces, and mounting surface is set up with dovetail groove, and wheel frame has at least two mounting lugs, and mounting lug is inserted in corresponding dovetail groove, and is mutually screwed, to realize the axle of mobile dolly is installed in wheel frame, and thus can reduce the gravity center of mobile dolly, and effectively reduce the shearing stress of mounting bolt on bearing seat.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment technology, and in particular to a bearing mounting structure for a mobile trolley. Background Technology

[0002] During the roll changing process in a continuous rolling mill, the roll changing trolley needs to move back and forth on the roll changing track. However, most roll changing trolleys have a high center of gravity and their wheel frames are subjected to large shear stress. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a bearing mounting structure for a mobile trolley, which can lower the center of gravity of the mobile trolley and effectively reduce the shear stress of the mounting bolts on the bearing seat.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] This utility model provides a bearing mounting structure for a mobile trolley, including a wheel frame of the mobile trolley and a bearing assembly disposed on the wheel frame; the bearing assembly includes a bearing housing and a bearing assembled in the bearing housing, the bearing being used to mount the axle of the mobile trolley; the outer wall of the bearing housing has at least two mounting surfaces, the mounting surfaces having dovetail grooves, the wheel frame having at least two mounting protrusions, the mounting protrusions being inserted into corresponding dovetail grooves and screwed together with each other.

[0006] Furthermore, the dovetail grooves on the two mounting surfaces extend in a direction perpendicular to each other, and the two mounting protrusions extend in a direction perpendicular to each other.

[0007] Furthermore, the bearing assembly also includes a bearing end cap disposed on the outward side of the bearing housing opposite to the wheel frame.

[0008] Furthermore, the bearing assembly also includes a bearing cover disposed between the bearing housing and the bearing end cap.

[0009] Furthermore, the bearing assembly is provided in two sets, with the two sets of bearing assemblies respectively located on both sides of the wheel frame.

[0010] The technical solution provided by this utility model has the following beneficial effects:

[0011] By assembling the bearing into the mounting hole in the bearing housing, inserting the mounting protrusion of the wheel frame into the dovetail groove on the mounting surface of the bearing housing, and screwing the wheel frame and the bearing housing together, the axle of the mobile trolley can be mounted on the wheel frame. This lowers the center of gravity of the mobile trolley and effectively reduces the shear stress of the mounting bolts on the bearing housing. Attached Figure Description

[0012] Figure 1 The figure shown is a cross-sectional view of the bearing mounting structure of the mobile trolley in the embodiment;

[0013] Figure 2 The diagram shown is a schematic of the bearing housing in the embodiment. Detailed Implementation

[0014] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0016] Reference Figure 1 and Figure 2 This embodiment provides a bearing mounting structure for a mobile trolley (hereinafter referred to as the bearing mounting structure) as a component of a roller changing trolley (i.e., one type of mobile trolley) on a roller changing track.

[0017] The bearing mounting structure of this embodiment includes a wheel frame 1 of a mobile trolley and two bearing assemblies respectively disposed on opposite sides of the wheel frame 1.

[0018] Each bearing assembly includes a bearing end cover 5, a bearing cover 4, a bearing housing 2, and a bearing 3 assembled in the mounting hole 22 of the bearing housing 2. All bearings 3 are used to install the axle of the moving trolley. Each bearing end cover 5 is located on the outward side of the bearing housing 2 in the same group, away from the wheel frame 1. Each bearing cover 4 is located between the bearing housing 2 and the bearing end cover 5 in the same group. That is, each bearing end cover 5 is assembled to the bearing housing 2 in the same group through the corresponding bearing cover 4.

[0019] The outer peripheral wall of the bearing housing 2 has two mounting surfaces 21, each mounting surface 21 having a dovetail groove 211. The wheel frame 1 has two mounting protrusions 11, each mounting protrusion 11 being inserted into the corresponding dovetail groove 211 and screwed together by mounting bolts.

[0020] In this embodiment, the extension directions of the dovetail grooves 211 on the two mounting surfaces 21 are perpendicular to each other, and the extension directions of the two mounting protrusions 11 on the same side are perpendicular to each other.

[0021] By assembling the bearing 3 into the mounting hole 22 in the bearing housing 2, inserting the mounting protrusion 11 of the wheel frame 1 into the dovetail groove 211 on the mounting surface 21 of the bearing housing 2, and screwing the wheel frame 1 and the bearing housing 2 together, the axle of the moving trolley can be mounted on the wheel frame 1. This can lower the center of gravity of the moving trolley and effectively reduce the shear stress of the mounting bolts on the bearing housing 2.

[0022] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A bearing mounting structure for a mobile trolley, comprising a wheel frame of the mobile trolley, characterized in that: It also includes a bearing assembly disposed on the wheel frame; The bearing assembly includes a bearing housing and a bearing assembled within the bearing housing, the bearing being used to mount the axle of the mobile trolley; The outer wall of the bearing housing has at least two mounting surfaces, each mounting surface having a dovetail groove. The wheel frame has at least two mounting protrusions, which are inserted into their corresponding dovetail grooves and screwed together.

2. The bearing mounting structure of the mobile trolley according to claim 1, characterized in that: The dovetail grooves on the two mounting surfaces extend perpendicularly to each other, and the two mounting protrusions extend perpendicularly to each other.

3. The bearing mounting structure of the mobile trolley according to claim 1 or 2, characterized in that: The bearing assembly also includes a bearing end cap, which is disposed on the outward side of the bearing housing opposite to the wheel frame.

4. The bearing mounting structure of the mobile trolley according to claim 3, characterized in that: The bearing assembly also includes a bearing cover, which is disposed between the bearing housing and the bearing end cap.

5. The bearing mounting structure of the mobile trolley according to claim 4, characterized in that: The bearing assembly is provided in two sets, with the two sets of bearing assemblies respectively located on both sides of the wheel frame.

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