Stepped bearing limiting device

Abstract

The utility model relates to the technical field of bearings, and discloses a stepped bearing limiting device which comprises a bottom plate, a placing disc is arranged on the front side of the top of the bottom plate, a ladder shaft is fixedly connected to the top of the placing disc, a bearing part is installed on the outer wall of the ladder shaft, and a round sleeve is clamped to the top of the bearing part. Supporting plates are fixedly connected to the left side and the right side of the round sleeve, supporting frames are fixedly connected to the left side and the right side of the front end of the top of the bottom plate, the outer walls of the supporting plates are slidably connected with the inner walls of the supporting frames, and a threaded rod is rotatably connected to the right side of the top of the bottom plate. The bearing parts are placed on the outer walls of the ladder shafts, then the threaded rods are rotated to drive the round sleeves to descend, the round sleeves descend to complete clamping with the bearing parts, limiting of the bearing parts with different thicknesses is achieved, meanwhile, the U-shaped clamps slide to be clamped with the inner walls of the corresponding second holes, the fixing effect is further enhanced, and the universality of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a stepped bearing limiting device. Background Technology

[0002] In many industrial scenarios, equipment needs to operate under complex and harsh conditions. These complex environmental factors have a significant impact on bearing positioning devices. With the continuous advancement of technology, industrial equipment is developing towards higher speeds and higher precision. In the field of precision machine tools, the spindle speed is getting higher and higher, while the machining accuracy is required to reach the micron or even nanometer level. This requires bearing positioning devices to provide precise positioning under high-speed rotation to ensure the rotational accuracy of the shaft and meet the requirements of high-precision machining. With the continuous emergence of large industrial equipment such as large generator sets and large cranes, the loads on these devices are getting larger and larger. As a key component bearing loads, the bearing's positioning device needs to withstand greater axial and radial forces. Traditional positioning structures will deform and break under heavy loads and cannot meet the needs of large and heavy-duty equipment. Therefore, it is necessary to develop a bearing positioning device that can adapt to the heavy-duty requirements of large equipment to ensure the safety and reliability of the equipment.

[0003] The stepped bearing limiting device consists of a stepped shaft, bearing, bushing, lock nut, limiting retaining ring, and bearing housing. Traditional limiting devices are prone to loosening and wear, leading to inaccurate bearing positioning and affecting the normal operation of the equipment. The bushing in the stepped bearing limiting device is made of wear-resistant material and is fitted onto the stepped shaft on both sides of the bearing, protecting the bearing and reducing direct friction and wear between the bearing and the shaft. At the same time, the surface of the stepped shaft undergoes special processing, including quenching and grinding, which improves the hardness and smoothness of the shaft, further reducing wear. However, the bearing limiting device is designed for specific bearing specifications. For bearings with different thicknesses and inner diameters, different fixing devices need to be replaced, which is inconvenient to use. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stepped bearing limiting device, which aims to improve the problem that the existing bearing limiting device is only for bearings of a specific specification, and different fixing devices are required for bearings of different thicknesses and inner diameters, making it inconvenient to use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stepped bearing limiting device, comprising a base plate, a placement plate provided on the top front side of the base plate, a stepped shaft fixedly connected to the top of the placement plate, a bearing component installed on the outer wall of the stepped shaft, a round sleeve engaged on the top of the bearing component, support plates fixedly connected to the left and right sides of the round sleeve, support frames fixedly connected to the left and right sides of the top front end of the base plate, the outer wall of the support plate slidably connected to the inner wall of the support frame, a threaded rod rotatably connected to the top right side of the base plate, the outer wall of the threaded rod threadedly connected to the middle of the right support plate, multiple holes II opened on the left side of the left support frame, a U-shaped clamp slidably connected to the left side of the left support plate, the right side of the U-shaped clamp engaging with the inner wall of the corresponding hole II, and a grinding mechanism provided on the top of the base plate for polishing the bearing.

[0006] As a further description of the above technical solution:

[0007] The polishing mechanism includes a polisher that is slidably connected to the rear side of the top center of the base plate. Multiple positioning holes are provided in the center of the polisher. A U-shaped frame is slidably connected to the outer wall of the polisher. A polishing tool is mounted on the front side of the U-shaped frame. A fastening bolt is threaded into the center of the U-shaped frame, passing through the U-shaped frame and threaded into the inner wall of the corresponding positioning hole. A U-shaped block is slidably connected to the lower middle part of the polisher. Multiple holes are provided on the rear side of the top of the base plate. The bottom of the U-shaped block engages with the inner wall of the corresponding hole. A motor is fixedly connected to the bottom inner side of the base plate, and the output end of the motor is fixedly connected to the bottom of the placement tray.

[0008] As a further description of the above technical solution:

[0009] A limit bracket is fixedly connected to the top right side of the U-shaped clamp, and a knob is fixedly connected to the top of the threaded rod.

[0010] As a further description of the above technical solution:

[0011] A nameplate is fixedly connected to the front side of the base plate, and an anti-slip pad is fixedly connected to the bottom of the base plate.

[0012] As a further description of the above technical solution:

[0013] Negative pressure machines are fixedly connected to the top left and right sides of the base plate, and filter screens are fixedly connected to the adjacent sides of the negative pressure machines.

[0014] As a further description of the above technical solution:

[0015] Each negative pressure unit is fixedly connected to a breathing light on its top, and a warning sign is fixedly connected to the opposite side of each negative pressure unit.

[0016] As a further description of the above technical solution:

[0017] The rear side of each negative pressure unit is connected to a connecting pipe, and the rear end of each connecting pipe is connected to a collection box. Each collection box has a door rotatably connected to the opposite side.

[0018] As a further description of the above technical solution:

[0019] A handle is fixedly connected to the rear side of the U-shaped frame, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the bearing component is placed on the outer wall of the trapezoidal shaft, and then the threaded rod is rotated to drive the round sleeve to descend. The round sleeve descends and engages with the bearing component, thereby limiting the bearing components of different thicknesses. At the same time, the sliding U-shaped clamp engages with the inner wall of the corresponding hole two, further strengthening the fixing effect. This allows the device to adapt to bearings of various specifications, improves the versatility of the device, reduces the trouble of needing to replace different fixing devices due to different bearing specifications, and reduces costs.

[0022] 2. In this utility model, by adjusting the position of the U-shaped frame to be flush with the height of the corresponding bearing component, the position is fixed by fastening the bolt through the inner wall of the corresponding positioning hole. Then, the grinder is pushed to the grinding position and the U-shaped block is lowered to engage with the corresponding hole, thus fixing the position of the grinder. Finally, the motor is started to drive the rotation of the placement plate, thereby achieving the grinding and polishing effect. The modular composition facilitates disassembly and replacement, reducing the difficulty and cost of equipment maintenance. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the base plate of a stepped bearing limiting device proposed in this utility model;

[0024] Figure 2 This is a diagram illustrating a negative pressure machine for a stepped bearing limiting device proposed in this utility model.

[0025] Figure 3 This is a split view of the support plate of a stepped bearing limiting device proposed in this utility model;

[0026] Figure 4 This is a split view of the ladder shaft of a stepped bearing limiting device proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of a grinder for a stepped bearing limiting device proposed in this utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Grinding mechanism; 201. Grinding tool; 202. Positioning hole; 203. U-shaped frame; 204. Grinding tool; 205. Fastening bolt; 206. U-shaped block; 207. Hole one; 208. Motor; 3. Placement tray; 4. Trapezoidal shaft; 5. Bearing component; 6. Round sleeve; 7. Support frame; 8. Support plate; 9. Threaded rod; 10. Hole two; 11. U-shaped clamp; 12. Limiting frame; 13. Knob; 14. Nameplate; 15. Anti-slip mat; 16. Negative pressure unit; 17. Filter screen; 18. Breathing light; 19. Warning sign; 20. Connecting pipe; 21. Collection box; 22. Box door; 23. Handle; 24. Anti-slip sleeve. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 An embodiment of this utility model provides a stepped bearing limiting device, including a base plate 1, a placement plate 3 is provided on the top front side of the base plate 1, a ladder shaft 4 is fixedly connected to the top of the placement plate 3, a bearing component 5 is installed on the outer wall of the ladder shaft 4, a round sleeve 6 is engaged on the top of the bearing component 5, support plates 8 are fixedly connected to the left and right sides of the round sleeve 6, support frames 7 are fixedly connected to the left and right sides of the top front end of the base plate 1, the outer wall of the support plate 8 is slidably connected to the inner wall of the support frame 7, a threaded rod 9 is rotatably connected to the top right side of the base plate 1, the outer wall of the threaded rod 9 is threadedly connected to the middle of the right support plate 8, multiple holes 10 are opened on the left side of the left support frame 7, a U-shaped clamp 11 is slidably connected to the left side of the left support plate 8, the right side of the U-shaped clamp 11 is engaged with the inner wall of the corresponding hole 10, and a grinding mechanism 2 is provided on the top of the base plate 1 for polishing the bearing.

[0032] Specifically, the top of the placement plate 3 is connected to the trapezoidal shaft 4, which can initially limit the bearings with two different inner diameters. The outer wall of the trapezoidal shaft 4 is equipped with a bearing component 5, and the top of the bearing component 5 is connected to the circular sleeve 6. The left and right sides of the circular sleeve 6 are fixedly connected with support plates 8, which facilitates the adjustment of the circular sleeve 6. The top front end of the base plate 1 is fixedly connected to the left and right sides with support frames 7. The outer wall of the support plate 8 is slidably connected to the inner wall of the support frame 7 to ensure the stability of the device adjustment limit. The outer wall of the threaded rod 9 is threadedly connected to the middle of the right support plate 8, making the adjustment process more convenient. The right side of the U-shaped clamp 11 engages with the inner wall of the corresponding hole 10 to ensure the stability of the device in the adjusted position.

[0033] Please see the appendix Figure 2 Appendix Figure 4 and attached Figure 5 The grinding mechanism 2 includes a grinder 201, which is slidably connected to the rear side of the top center of the base plate 1. The grinder 201 has multiple positioning holes 202 in the middle. A U-shaped frame 203 is slidably connected to the outer wall of the grinder 201. A grinding tool 204 is installed on the front side of the U-shaped frame 203. A fastening bolt 205 is threadedly connected to the middle of the U-shaped frame 203. The fastening bolt 205 passes through the U-shaped frame 203 and is threadedly connected to the inner wall of the corresponding positioning hole 202. A U-shaped block 206 is slidably connected to the lower middle part of the grinder 201. Multiple holes 207 are opened on the rear side of the top of the base plate 1. The bottom of the U-shaped block 206 engages with the inner wall of the corresponding hole 207. A motor 208 is fixedly connected to the bottom inner side of the base plate 1. The output end of the motor 208 is fixedly connected to the bottom of the placement plate 3.

[0034] Specifically, the grinder 201 is slidably connected to the rear side of the top center of the base plate 1, ensuring the stability and adjustability of the grinder 201 during operation. Multiple positioning holes 202 are opened in the middle of the grinder 201 to adjust the grinding position and ensure the grinding effect. The front part of the U-shaped frame 203 is equipped with a grinding tool 204, which is responsible for grinding the material. The fastening bolt 205 not only passes through the U-shaped frame 203 but also is threadedly connected to the corresponding positioning hole 202 on the grinder 201, thereby achieving the fixing effect of the U-shaped frame 203.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 A nameplate 14 is fixedly connected to the front side of the base plate 1, an anti-slip pad 15 is fixedly connected to the bottom of the base plate 1, a handle 23 is fixedly connected to the rear side of the U-shaped frame 203, an anti-slip sleeve 24 is fixedly connected to the outer wall of the handle 23, a negative pressure machine 16 is fixedly connected to the top left and right sides of the base plate 1, and a filter screen 17 is fixedly connected to the adjacent side of the negative pressure machine 16.

[0036] Specifically, the nameplate 14 is used to identify relevant information about the equipment, the anti-slip pad 15 increases the friction between the equipment and the ground to prevent the equipment from sliding during use, the handle 23 makes adjustment easier, and the outer wall of the handle 23 is fixedly connected with an anti-slip sleeve 24, which not only provides a better grip but also effectively prevents slippage during adjustment, and the negative pressure machine 16 ensures that the equipment can generate negative pressure evenly during operation and collect the grinding debris in a timely manner.

[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 A breathing light 18 is fixedly connected to the top of the negative pressure machine 16. A warning sign 19 is fixedly connected to the side of the negative pressure machine 16 away from the front. A limit bracket 12 is fixedly connected to the top right side of the U-shaped clamp 11. A knob 13 is fixedly connected to the top of the threaded rod 9. A connecting pipe 20 is connected to the rear side of the negative pressure machine 16. A collection box 21 is connected to the rear end of the connecting pipe 20. A box door 22 is rotatably connected to the side of the collection box 21 away from the front.

[0038] Specifically, the breathing light 18 can emit different colors of light in different working states to intuitively understand the operation of the negative pressure machine 16. The warning sign 19 is printed with safety tips and operating precautions to ensure safety during use. The limit bracket 12 limits the movement range of the U-shaped clamp 11 to ensure its stability during use. The knob 13 makes it easy to adjust the threaded rod 9 to control the equipment. The connecting pipe 20 is used to transfer the grinding debris absorbed by the negative pressure machine 16 to the collection box 21.

[0039] Working principle: The bearing component 5 is placed on the outer wall of the trapezoidal shaft 4. The protrusion on the outer wall of the trapezoidal shaft 4 provides initial support and fixation, which can limit and fix the inner diameter of two types of bearings. After placement, the threaded rod 9 is rotated to drive the sleeve 6 to descend. The sleeve 6 descends and engages with the bearing component 5, thus limiting the bearing component 5 of different thicknesses. At the same time, the sliding U-shaped clamp 11 engages with the inner wall of the corresponding hole 10, further strengthening the fixing effect. This allows the device to adapt to bearings of various specifications, improves the versatility of the device, reduces the trouble of changing different fixing devices due to different bearing specifications, and reduces costs.

[0040] By adjusting the position of the U-shaped frame 203 to be flush with the height of the corresponding bearing component 5, the fastening bolt 205 passes through the inner wall of the corresponding positioning hole 202 to fix the position. Then, the grinder 201 is pushed to the grinding position and the U-shaped block 206 is lowered to engage with the corresponding hole 207 to fix the position of the grinder 201. Finally, the motor 208 is started to drive the rotation of the placement plate 3, thereby achieving the grinding and polishing effect. At the same time, the modular structure makes each component relatively independent. When a component fails or needs to be upgraded, it is easy to disassemble and replace, reducing the difficulty and cost of equipment maintenance. It also provides conditions for subsequent equipment function expansion and performance optimization.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stepped bearing stop comprising a base plate (1) characterised in that: A placement tray (3) is provided on the top front side of the base plate (1). A trapezoidal shaft (4) is fixedly connected to the top of the placement tray (3). A bearing component (5) is installed on the outer wall of the trapezoidal shaft (4). A round sleeve (6) is engaged on the top of the bearing component (5). Support plates (8) are fixedly connected to the left and right sides of the round sleeve (6). Support frames (7) are fixedly connected to the left and right sides of the top front end of the base plate (1). The outer wall of the support plate (8) is slidably connected to the inner wall of the support frame (7). A threaded rod (9) is rotatably connected to the top right side of the support plate (8) on the right side. The outer wall of the threaded rod (9) is threadedly connected to the middle part of the support plate (8) on the right side. Multiple holes (10) are opened on the left side of the support frame (7) on the left side. A U-shaped clamp (11) is slidably connected to the left side of the support plate (8) on the left side. The right side of the U-shaped clamp (11) is engaged with the inner wall of the corresponding hole (10). A polishing mechanism (2) is provided on the top of the base plate (1). The polishing mechanism (2) is used to polish the bearing.

2. A stepped bearing stop as claimed in claim 1, characterised in that: The grinding mechanism (2) includes a grinder (201), which is slidably connected to the rear side of the top center of the base plate (1). The grinder (201) has multiple positioning holes (202) in its center. A U-shaped frame (203) is slidably connected to the outer wall of the grinder (201). A grinding tool (204) is mounted on the front side of the U-shaped frame (203). A fastening bolt (205) is threadedly connected to the center of the U-shaped frame (203). The inner wall of the U-shaped frame (203) is threaded through and the corresponding positioning hole (202). The lower middle part of the grinder (201) is slidably connected to a U-shaped block (206). Multiple holes (207) are opened on the top rear side of the base plate (1). The bottom of the U-shaped block (206) is engaged with the inner wall of the corresponding hole (207). A motor (208) is fixedly connected to the bottom inner side of the base plate (1). The output end of the motor (208) is fixedly connected to the bottom of the placement plate (3).

3. A stepped bearing stop as defined in claim 1, wherein: A limit frame (12) is fixedly connected to the top right side of the U-shaped clamp (11), and a knob (13) is fixedly connected to the top of the threaded rod (9).

4. A stepped bearing stop as defined in claim 1, wherein: A nameplate (14) is fixedly connected to the front side of the base plate (1), and an anti-slip pad (15) is fixedly connected to the bottom of the base plate (1).

5. A stepped bearing stop as defined in claim 1, wherein: Negative pressure machines (16) are fixedly connected to the top left and right sides of the base plate (1), and filter screens (17) are fixedly connected to the adjacent side of the negative pressure machines (16).

6. A stepped bearing stop as claimed in claim 5, characterised in that: Each of the negative pressure units (16) is fixedly connected to a breathing light (18) on its top, and a warning sign (19) is fixedly connected to the opposite side of each negative pressure unit (16).

7. A stepped bearing stop as claimed in claim 5, wherein: The rear side of the negative pressure machine (16) is connected to a connecting pipe (20), and the rear end of the connecting pipe (20) is connected to a collection box (21). The opposite side of the collection box (21) is rotatably connected to a box door (22).

8. A stepped bearing stop as defined in claim 2, wherein: A handle (23) is fixedly connected to the rear side of the U-shaped frame (203), and an anti-slip sleeve (24) is fixedly connected to the outer wall of the handle (23).

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