Roller way bearing mounting structure for shot blasting machine
By designing a protective structure for the housing and baffles in the shot blasting machine, the problem of bearings being struck by shot is solved, thus achieving bearing protection, convenient maintenance, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUFANG MASCH CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-28
AI Technical Summary
In existing shot blasting machines, the bearings on both sides of the indoor conveyor rollers are exposed, making them susceptible to damage from high-speed shot, which affects their service life.
A protective structure consisting of a housing and a baffle is designed. The housing is fitted onto the rotating shaft and fixed with bolts, and the baffle is detachable. The protective structure consisting of the housing and the baffle covers the inner side of the bearing to prevent projectiles from directly hitting the bearing. The housing is made of rubber material with embedded metal wires for reinforcement, and the baffle is a rubber plate with embedded metal wires for cushioning.
It effectively protects the bearing from shot impact, extends its service life, and facilitates later inspection and replacement. The damped sliding fit facilitates disassembly and maintenance.
Smart Images

Figure CN224169565U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machines, specifically to a roller bearing mounting structure for shot blasting machines. Background Technology
[0002] A roller conveyor shot blasting machine is a machine used to remove oxide scale, clean, and pre-treat various steel materials, such as steel plates, steel bars, steel beams, structural steel, steel pipes, and cast steel parts, in a continuous passing manner. Its conveyor roller conveyor is divided into indoor conveyor roller conveyors and loading / unloading section conveyor roller conveyors. For example... Figure 1 As shown, a single conveying roller of the conveying roller conveyor includes a transverse rotating shaft 1, on which a guide roller 2 is provided. Both ends of the rotating shaft 1 are fixedly inserted into circular bearings 3, and the bearings 3 are fixedly installed on bearing mounting seats 4. L-shaped frame plates 41 are respectively provided on both sides of the bearing mounting seats 4, and the L-shaped frame plates 41 are fixedly installed on the shot blasting machine frame 5 by bolts 411.
[0003] The aforementioned roller bearing mounting structure for the conveyor rollers can effectively secure and fix the conveyor rollers. However, in indoor conveyor rollers, the bearings at both ends are exposed, allowing high-speed projectiles to directly impact the bearing sides, causing severe damage and hindering the extension of bearing life. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a roller bearing mounting structure for shot blasting machines. This mounting structure can solve the problem that the bearings on both sides of the indoor conveyor roller are easily hit directly by high-speed shot, causing serious damage to the bearings and hindering the extension of their service life.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller bearing mounting structure for a shot blasting machine, comprising a transverse rotating shaft, a guide roller on the rotating shaft, and two ends of the rotating shaft fixedly inserted into circular bearings, the bearings being fixedly mounted on a bearing mounting seat, L-shaped brackets on both sides of the bearing mounting seat, the L-shaped brackets being fixedly mounted on the shot blasting machine frame by a first bolt, a protective structure for shielding the inner side of the bearing being installed on the bearing mounting seat, the protective structure comprising a shell, the shell being an open cylindrical tube, a rectangular notch from the center of the shell being embedded downwards to mate with the rotating shaft, and an outwardly extending fixing plate fixedly mounted on the outer surface of the shell, the fixing plate being fixedly connected to the bearing mounting seat by a second bolt.
[0006] As a preferred technical solution, the upper end of the rectangular notch has an arc-shaped structure that matches the rotating shaft.
[0007] As a preferred technical solution, the side of the rotating shaft is frictionally fitted with the rectangular notch.
[0008] As a preferred technical solution, the number of fixing plates is three, located on the top surface and two sides of the side circumference of the shell respectively.
[0009] As a preferred technical solution, a baffle is detachably provided on the rectangular notch on the lower side of the arc-shaped structure.
[0010] As a preferred technical solution, the rectangular notch on the lower side of the arc-shaped structure is provided with slide tracks on the left and right sides that are damped and slidably engaged with the sides of the baffle.
[0011] As a preferred technical solution, the top of the baffle is provided with an arc-shaped groove that cooperates with the rotating shaft.
[0012] As a preferred technical solution, a lateral limiting block is fixedly provided at the lower end of the baffle.
[0013] As a preferred technical solution, the shell is a rubber shell with crisscrossing metal wires embedded inside.
[0014] As a preferred technical solution, the baffle is a rubber sheet with crisscrossing metal wires embedded inside.
[0015] Compared with the prior art, this utility model provides a roller bearing mounting structure for shot blasting machines, which has the following advantages:
[0016] 1. This utility model includes a protective structure comprising a shell, which is an open cylindrical tube. A rectangular notch for engaging with a rotating shaft is embedded downward from the center of the shell. An outwardly extending fixing plate is fixedly provided on the outer surface of the shell. The fixing plate is fixedly connected to the bearing fixing seat by a second bolt. In use, the shell can act as a shield inside the bearing, allowing high-speed projectiles to directly hit the shell, preventing them from hitting the side of the bearing, thus effectively protecting the bearing. Furthermore, it can be disassembled later by the second bolt for easy maintenance and replacement.
[0017] 2. This utility model features a detachable baffle on the rectangular notch on the lower side of the arc-shaped structure. The rectangular notch on the lower side of the arc-shaped structure has slide rails on the left and right sides that are damped and slidably engaged with the baffle. In use, the baffle can shield the bearing at the rectangular notch on the lower side of the shaft, further protecting the bearing. It can also be easily disassembled through the damped sliding engagement with the slide rails, facilitating inspection and maintenance.
[0018] 3. This utility model uses a rubber shell with interwoven metal wires embedded inside, and a rubber plate with interwoven metal wires embedded inside. In use, the rubber shell and rubber plate can provide elastic cushioning for the projectile, and the metal wires can increase the strength of the rubber shell and rubber plate. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:
[0020] Figure 1 A schematic diagram of the bearing installation structure of a single conveyor roller in an existing through-type shot blasting machine;
[0021] Figure 2 This is a three-dimensional structural diagram of the first embodiment of the present utility model;
[0022] Figure 3 A schematic diagram of the split structure for the assembly of the rotating shaft, protective structure, and bearing mounting base;
[0023] Figure 4 A three-dimensional structural diagram of the protective structure from another angle;
[0024] Figure 5 This is a three-dimensional structural diagram of the second embodiment of the present invention.
[0025] The diagram shows: 1. Rotating shaft; 2. Guide roller; 3. Bearing; 4. Bearing mounting base; 41. L-shaped frame plate; 411. First bolt; 5. Shot blasting machine frame; 6. Protective structure; 61. Shell; 62. Fixing plate; 63. Second bolt; 64. Rectangular notch; 65. Arc-shaped structure; 66. Slide rail; 7. Baffle; 71. Arc-shaped groove; 72. Limiting block. Detailed Implementation
[0026] 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. Example 1
[0027] like Figures 2 to 4As shown, a roller bearing mounting structure for a shot blasting machine includes a transverse rotating shaft 1, a guide roller 2 on the rotating shaft 1, and two ends of the rotating shaft 1 fixedly inserted into circular bearings 3. The bearings 3 are fixedly mounted on a bearing mounting seat 4. L-shaped brackets 41 are respectively provided on both sides of the bearing mounting seat 4. The L-shaped brackets 41 are fixedly mounted on the shot blasting machine frame 5 by first bolts 411. A protective structure 6 for shielding the inner side of the bearing is installed on the bearing mounting seat 4. The protective structure 6 includes a shell 61, which is an open cylindrical tube. A rectangular notch 64 that mates with the rotating shaft 1 is embedded downward from the center of the shell 61 (the rotating shaft 1 is inserted from top to bottom during installation). An outwardly extending fixing plate 62 is fixedly provided on the outer surface of the shell 61. The fixing plate 62 is fixedly connected to the bearing mounting seat 4 (which has screw holes on its side circumference that mate with the second bolt) by second bolts 63.
[0028] The upper end of the rectangular notch 64 has an arc-shaped structure 65 that matches the rotating shaft 1.
[0029] The side of the rotating shaft 1 is in frictional engagement with the rectangular notch 64 to prevent the projectile from penetrating.
[0030] There are three fixing plates 62, located on the top surface and two sides of the side circumference of the housing 61, respectively.
[0031] In use, the housing 61 can act as a shield inside the bearing 3, allowing the high-speed projectile to hit the housing 61 directly, preventing it from hitting the side of the bearing 3 directly, thus effectively protecting the bearing 3. Furthermore, it can be disassembled later using the second bolt 63 for easy inspection and replacement. Example 2
[0032] like Figure 5 As shown, a baffle 7 is detachably provided on the rectangular notch 64 on the lower side of the arc-shaped structure 65.
[0033] The rectangular notch 64 on the lower side of the arc-shaped structure 65 is provided with slide rails 66 on the left and right sides that are damped and slidably engaged with the sides of the baffle 7.
[0034] The top of the baffle 7 is provided with an arc-shaped groove 71 that mates with the rotating shaft 1.
[0035] A horizontal limiting block is fixed at the lower end of the baffle 7.
[0036] When in use, the baffle 7 can block the rectangular notch 64 on the lower side of the rotating shaft 1, further protecting the bearing 3. It can also be easily disassembled by sliding with the slide 66 (simply pull it down), making it convenient for inspection and maintenance. Example 3
[0037] The shell 61 is a rubber shell with crisscrossing metal wires (not shown, steel wires) embedded inside.
[0038] The baffle 7 is a rubber sheet with crisscrossing metal wires (not shown, steel wires) embedded inside.
[0039] In use, the rubber shell and rubber plate can provide elastic cushioning for the projectile, while the metal wire can increase the strength of the rubber shell and rubber plate.
[0040] The components used in this utility model are all general standard parts or components known to those skilled in the art, and their structures and principles are well known to those skilled in the art.
[0041] It should be noted that, in this document, the terms "first," "second," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0042] The structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so that those skilled in the art can understand and read them, and are not intended to limit the conditions under which this utility model can be implemented. Any modification of the structure, change of the proportions, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A roller bearing mounting structure for a shot blasting machine, comprising a transverse rotating shaft, a guide roller mounted on the rotating shaft, two ends of the rotating shaft fixedly inserted into circular bearings, the bearings fixedly mounted on bearing mounting seats, and L-shaped brackets on both sides of the bearing mounting seats, the L-shaped brackets being fixedly mounted on the shot blasting machine frame by first bolts, characterized in that: The bearing mounting base is equipped with a protective structure that shields the inner side of the bearing. The protective structure includes a housing, which is an open cylindrical tube. A rectangular notch that mates with the rotating shaft is embedded downward from the center of the housing. An outwardly extending fixing plate is fixedly provided on the outer surface of the housing. The fixing plate is fixedly connected to the bearing mounting base by a second bolt.
2. The roller bearing mounting structure for a shot blasting machine according to claim 1, characterized in that: The upper end of the rectangular notch has an arc-shaped structure that matches the rotating shaft.
3. The roller bearing mounting structure for a shot blasting machine according to claim 1, characterized in that: The side of the rotating shaft is in frictional engagement with the rectangular notch.
4. The roller bearing mounting structure for a shot blasting machine according to claim 1, characterized in that: The number of fixing plates is three, located on the top surface and two sides of the side circumference of the shell.
5. The roller bearing mounting structure for a shot blasting machine according to claim 2, characterized in that: A baffle is detachably provided on the rectangular notch on the lower side of the arc-shaped structure.
6. The roller bearing mounting structure for a shot blasting machine according to claim 2, characterized in that: The rectangular notch on the lower side of the arc-shaped structure is provided with slide tracks on both sides that are damped and slidably engaged with the sides of the baffle.
7. The roller bearing mounting structure for a shot blasting machine according to claim 5, characterized in that: The top of the baffle is provided with an arc-shaped groove that mates with the rotating shaft.
8. The roller bearing mounting structure for a shot blasting machine according to claim 5, characterized in that: A lateral limiting block is fixed at the lower end of the baffle.
9. The roller bearing mounting structure for a shot blasting machine according to claim 1, characterized in that: The shell is a rubber shell with crisscrossing metal wires embedded inside.
10. The roller bearing mounting structure for a shot blasting machine according to claim 5, characterized in that: The baffle is a rubber sheet with crisscrossing metal wires embedded inside.