High-speed running anti-loosening peeling belt guide wheel

Abstract

The utility model discloses a high-speed running anti-loosening peeling belt guide wheel which comprises a guide wheel body, a hub, double bearings and a fixing shaft. The head end of the fixed shaft is sleeved with double bearings, the inner wall of the hub is tightly attached to the outer walls of the double bearings, first turned edges tightly attached to the two sides of the outer rings of the double bearings are formed through stamping, and the hub is sleeved with a guide wheel. A blocking protruding part is arranged in the middle of the fixing shaft, a second flanging is formed at the end of the fixing shaft through stamping, and the two sides of the double-bearing inner ring are tightly attached to the interior of a groove between the blocking protruding part and the second flanging. The hub comprises a hub outer ring and a hub inner ring, the hub outer ring is provided with a positioning convex ring, the two sides of the hub inner ring are stamped outwards to form third flanges for blocking the two sides of the positioning convex ring, and the hub inner ring is stamped inwards to form the first flanges; the outer rings of the double bearings are axially fixed in an assembling and fastening mode of punching flanges at the two ends, so that the assembling efficiency is high, the guide wheel and the hub do not fall off in the axial direction during high-speed operation, and meanwhile, the double bearings are large in bearing capacity, stable in guiding and small in heat emission.

Description

Technical Field

[0001] This utility model belongs to the technical field of textile machinery parts, specifically relating to a high-speed rotating anti-loosening belt guide pulley. Background Technology

[0002] Belt pulleys play a crucial role in textile machinery, primarily for transmission and guidance, ensuring the normal operation of mechanical components. Belt pulleys can adjust the preload of the running belt, while also guiding the belt and transmitting force. They can be flexibly adjusted according to actual needs, improving the machine's operational function and yarn quality.

[0003] However, existing belt pulleys are generally fixed at both ends with snap rings, which results in low assembly efficiency. Furthermore, they are prone to overheating during high-speed operation, causing abnormal damage or jamming. At the same time, high-speed operation can easily cause the pulley to loosen and fall off. Utility Model Content

[0004] This utility model provides a high-speed rotating anti-loosening belt guide pulley, which is axially fixed by a double bearing outer ring and assembled and fastened by punching and flipping the edges at both ends. The assembly efficiency is high, and there is no axial movement during high-speed operation. The guide pulley and hub will not fall off. At the same time, the double bearing has a large load capacity, stable guidance, and low heat generation, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed rotating anti-loosening belt guide pulley, comprising a guide pulley, a hub, double bearings, and a fixed shaft; the double bearings are fitted at the head end of the fixed shaft, the inner wall of the hub is in close contact with the outer wall of the double bearings, and a first flange is formed by stamping that is in close contact with both sides of the outer ring of the double bearings; the guide pulley is fitted on the outer side of the hub.

[0006] Preferably, the fixed shaft has a blocking protrusion in the middle and a second flange formed at the end by stamping. The inner rings of the double bearing are tightly attached to the groove between the blocking protrusion and the second flange on both sides.

[0007] Preferably, the fixed shaft has a stamping groove at the center of one end corresponding to the second flange.

[0008] Preferably, the wheel hub includes an outer ring and an inner ring. The outer ring has a positioning protrusion ring in the middle of its inner wall. The inner ring is formed by pressing outwards on both sides to form a third flange that blocks the two sides of the positioning protrusion ring. The first flange is formed by pressing inwards on the inner ring.

[0009] Preferably, the outer ring of the hub forms annular grooves on both sides of the positioning convex ring, and a gap space is left between the outer edge of the third flange and the annular groove.

[0010] Preferably, the gap space is formed by placing an annular part as a block during stamping and then removing the annular part after stamping.

[0011] Preferably, the outer rim of the wheel hub is made of cemented carbide.

[0012] Preferably, the outer edges of both sides of the hub are provided with retaining edges, and the inner wall of the guide wheel is fitted into the groove formed by the two retaining edges.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The axial fixing of the inner and outer rings of the double bearing adopts the assembly and fastening method of punching and flipping the flanges at both ends, which changes the previous method of fixing with snap rings at both ends, resulting in high assembly efficiency.

[0015] 2. During use, the bearing inner ring is positioned by the blocking protrusion of the fixed shaft and the second flange, the bearing outer ring is positioned by the first flange, and the hub outer ring and hub inner ring are positioned by the third flange. During high-speed operation, there is no axial movement and the guide wheel and hub will not fall off.

[0016] 3. Dual bearings provide high load capacity, stable guidance, and low heat generation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the annular component structure of this utility model;

[0019] Figure 3 This is a side view of the outer ring structure of the wheel hub according to this utility model;

[0020] Figure 4 This is a side view of the inner ring structure of the wheel hub according to this utility model.

[0021] In the diagram: 1. Guide wheel; 2. Double bearing; 3. Fixed shaft; 4. First flange; 5. Blocking protrusion; 6. Second flange; 7. Stamping groove; 8. Outer ring of hub; 9. Inner ring of hub; 10. Positioning protrusion; 11. Third flange; 12. Ring groove; 13. Gap space; 14. Annular part; 15. Stop edge. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a high-speed rotating anti-loosening belt guide pulley, including a guide pulley 1, a hub, double bearings 2, and a fixed shaft 3; the double bearings 2 are fitted at the head end of the fixed shaft 3, the inner wall of the hub is tightly attached to the outer wall of the double bearings 2, and a first flange 4 is formed by stamping to fit tightly against both sides of the outer ring of the double bearings 2; the guide pulley 1 is fitted on the outer side of the hub; the axial fixation of the outer ring of the double bearings 2 adopts an assembly and fastening method similar to riveting by stamping at both ends, which changes the previous method of fixing with snap rings at both ends, significantly improving assembly efficiency. During high-speed operation, there is no axial movement, and the guide pulley 1 and the hub will not fall off. At the same time, the double bearings have a large load capacity, stable guidance, and low heat generation.

[0024] Specifically, the fixed shaft 3 has a blocking protrusion 5 in the middle and a second flange 6 formed at the end by stamping. The inner ring of the double bearing is tightly attached to the groove between the blocking protrusion 5 and the second flange 6 on both sides. In this embodiment, the inner ring of the double bearing 2 is fixed to the fixed shaft 3 by a stamping-like riveting assembly fastening method, which improves assembly efficiency and prevents the guide wheel 1 and the hub from falling off.

[0025] Specifically, the fixed shaft 3 has a stamping groove 7 at one end center corresponding to the second flange 6. In this embodiment, the stamping groove 7 facilitates the inward pressing of the second flange 6 by an external mechanism, thereby pressing the stamping groove 7 and realizing the disassembly between the double bearing 2 and the fixed shaft 3.

[0026] Specifically, the wheel hub includes an outer ring 8 and an inner ring 9. The outer ring 8 has a positioning protrusion 10 in the middle of its inner wall. The inner ring 9 has two sides that are punched outward to form a third flange 11 that blocks the two sides of the positioning protrusion 10. The first flange 4 is formed by the inner ring 9 being punched inward. In this embodiment, the outer ring 8 and the inner ring 9 are separable. By inserting an external pressure mechanism into the first flange 4 and squeezing the first flange 4, the double bearings 2 and the inner ring 9 can be separated, making them detachable.

[0027] Specifically, the outer ring 8 of the hub forms annular grooves 12 on both sides of the positioning convex ring 10, and a gap space 13 is left between the outer edge of the third flange 11 and the annular groove 12. In this embodiment, the outer ring 8 of the hub and the inner ring 9 of the hub can be separated by an external pressure mechanism inserted into the gap space 13 to squeeze the third flange 11, thus achieving detachability.

[0028] Specifically, the gap space 13 is formed by placing an annular part 14 in advance to block during stamping, and then removing the annular part 14 after stamping. In this embodiment, placing an annular part 14 that is not easily deformed by stamping is to achieve the blocking of the third flange 11 during stamping, so as to facilitate the formation of the gap space 13 after disassembly, and to reserve the extension space for subsequent pressure disassembly.

[0029] Specifically, the outer rim 8 of the wheel hub is made of hard alloy material; in this embodiment, the outer rim 8 of the wheel hub is not easily deformed by stamping.

[0030] Specifically, the outer edges of both sides of the hub are provided with flanges 15, and the inner wall of the guide wheel 1 is installed in the groove formed by the two flanges 15. In this embodiment, the guide wheel 1 is not easy to come off the hub by being limited by the flanges 15.

[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0032] Working principle: During installation, the double bearing 2 is first assembled on the fixed shaft 3. The double bearing 2 is fitted onto the end of the fixed shaft 3. The end edge of the stamping groove 7 of the fixed shaft 3 is stamped by the stamping mechanism. During stamping, the stamping groove 7 is filled to form a second flange 6. The second flange 6 and the blocking protrusion 5 cooperate to position the inner ring of the double bearing 2, completing the assembly of the double bearing 2. The double bearing 2 is then assembled with the hub and guide wheel 1. The inner ring 9 of the hub is fitted onto the double bearing 2, followed by the outer ring 8 of the hub and the guide wheel 1. Then, the annular part 14 is fitted into the annular groove 12. The assembly is completed by stamping. The mechanism stamps both sides of the inner ring 9 of the wheel hub, thereby forming a third flange 11 and a first flange 4 on both sides of the inner ring 9 of the wheel hub outward and inward, respectively. This completes the positioning of the inner ring 9 of the wheel hub with the outer ring of the double bearing 2 through the first flange 4, as well as the assembly of the outer ring 8 of the wheel hub and the inner ring 9 of the wheel hub. In use, the axial fixation of the inner and outer rings of the double bearing 2 adopts the assembly and fastening method of stamping flanges at both ends, which changes the previous method of fixing with snap rings at both ends. The assembly efficiency is significantly improved. During high-speed operation, there is no axial movement, and the guide wheel 1 and the wheel hub will not fall off. At the same time, the double bearing has a large load capacity, stable guidance, and low heat generation.

[0033] 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 high-speed rotating anti-loosening belt guide pulley, comprising a guide pulley (1), a hub, double bearings (2), and a fixed shaft (3); characterized in that, The fixed shaft (3) is fitted with the double bearing (2) at its head end. The inner wall of the hub is in close contact with the outer wall of the double bearing (2), and a first flange (4) is formed by stamping that is in close contact with both sides of the outer ring of the double bearing (2). The guide wheel (1) is fitted on the outer side of the hub. The hub includes an outer ring (8) and an inner ring (9). The inner wall of the outer ring (8) is provided with a positioning protrusion (10). The inner ring (9) is formed by pressing outwards on both sides to form a third flange (11) that blocks the two sides of the positioning protrusion (10). The first flange (4) is formed by pressing inwards from the inner ring (9).

2. The high-speed rotating anti-loosening belt guide pulley according to claim 1, characterized in that, The fixed shaft (3) has a blocking protrusion (5) in the middle and a second flange (6) formed at the end by stamping. The inner rings of the double bearing are tightly attached to the groove between the blocking protrusion (5) and the second flange (6) on both sides.

3. A high-speed rotating anti-loosening belt guide pulley according to claim 2, characterized in that, The fixed shaft (3) has a stamping groove (7) at the center of one end corresponding to the second flange (6).

4. A high-speed rotating anti-loosening belt guide pulley according to claim 1, characterized in that, The outer ring (8) of the hub forms annular grooves (12) on both sides of the positioning convex ring (10), and a gap space (13) is left between the outer edge of the third flange (11) and the annular groove (12).

5. A high-speed rotating anti-loosening belt guide pulley according to claim 4, characterized in that, The gap space (13) is formed by placing an annular part (14) in advance during stamping and then removing the annular part (14) after stamping.

6. A high-speed rotating anti-loosening belt guide pulley according to claim 5, characterized in that, The outer rim (8) of the wheel hub is made of hard alloy material.

7. A high-speed rotating anti-loosening belt guide pulley according to claim 1, characterized in that, The outer edges of both sides of the hub are provided with flanges (15), and the inner wall of the guide wheel (1) is fitted into the groove formed by the two flanges (15).

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