Nylon pulley convenient to stably rotate

Abstract

The utility model belongs to the technical field of nylon pulleys, and particularly relates to a nylon pulley convenient for stable rotation, which comprises a nylon pulley main body, bearing protection components are arranged at the opening ends of bearing positioning holes on two sides of the nylon pulley main body, and each bearing protection component comprises a gasket, a protection ring, an oil injection hole, an oil injection pipe and a maximum oil injection scale line, the oil injection hole is formed in the protection ring, the oil injection pipe is connected into the oil injection hole, and the maximum oil injection scale line is engraved on the surface of the protection ring. According to the nylon pulley, the bearing protection assemblies are installed at the opening ends of the bearing positioning holes in the two sides of the nylon pulley body, so that the bearing protection assemblies can cover exposed bearings, damage to the bearings caused by dust in the environment or external force influence can be effectively prevented, the abnormal conditions such as bearing ball clamping are reduced, and the service life of the bearings is prolonged. Therefore, the stable rotation of the nylon pulley is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of nylon pulleys, and in particular relates to a nylon pulley which is easy to rotate stably. Background Art

[0002] Nylon pulley is a common pulley equipment, widely used in machinery, engineering, electronics, furniture and other industries. Nylon material has excellent wear resistance, good cold resistance and chemical stability, so it is widely used in the manufacture of pulleys;

[0003] In the application of nylon pulley in elevator, the bearing is often installed in the bearing positioning hole at the center of the nylon pulley, and then it is installed on the traction machine. The traction machine drives the nylon pulley to rotate to achieve the traction of the elevator rope.

[0004] However, the inventors have discovered that when the existing nylon pulley is installed on the traction machine, the bearing in the bearing positioning hole is exposed to the outside. The purpose is to facilitate regular oiling of the bearing. However, due to the exposure of the bearing, the bearing is easily adhered to dust in the environment or affected by external forces to cause bead jamming, which affects the stability of the nylon pulley's rotation. Utility Model Content

[0005] The utility model aims to provide a nylon pulley which is easy to rotate stably, and aims to solve the problem in the prior art that when the nylon pulley is installed on the traction machine, the bearing is exposed, which makes the bearing easily adhere to dust in the environment or be affected by external forces to cause bead jamming, thereby affecting the rotation stability of the nylon pulley.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a nylon pulley that is easy to rotate stably, including a nylon pulley body, the open ends of the bearing positioning holes on both sides of the nylon pulley body are installed with bearing protection components, the bearing protection components include: a gasket, a protection ring, an oil filling hole, an oil filling tube and a maximum oil filling scale line, the oil filling hole is opened inside the protection ring, the oil filling tube is connected to the oil filling hole, and the maximum oil filling scale line is engraved on the surface of the protection ring.

[0007] In order to facilitate the installation and fixation of the bearing protection assembly, as a preferred nylon pulley for stable rotation of the utility model, the opening end surfaces of the bearing positioning holes on both sides of the nylon pulley body are provided with six groups of positioning holes distributed in annular shapes with equal spacing, and the inner walls of the positioning holes are threaded structures.

[0008] In order to store lubricating oil in the space formed between the protective ring and the bearing positioning hole, as a preferred nylon pulley for stable rotation of the utility model, the washer is made of rubber and fits the protective ring, and the outer diameter of the washer is the same as the outer diameter of the protective ring, and the inner diameter of the washer is smaller than the inner diameter of the protective ring.

[0009] In order to facilitate the observation of the amount of injected oil, as a preferred nylon pulley for stable rotation of the utility model, the protective ring is made of PMMA material, and the surfaces of the protective ring and the gasket are provided with through holes with the same size and position as the six groups of positioning holes.

[0010] In order to prevent oil leakage, as a preferred embodiment of the utility model of a nylon pulley that is easy to rotate stably, the oil injection pipe is L-shaped.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model installs bearing protection components at the open ends of the bearing positioning holes on both sides of the nylon pulley body, so that the bearing protection components can cover the exposed bearings, thereby effectively preventing the damage to the bearings caused by dust or external forces in the environment, reducing abnormal situations such as bearing beads being stuck, and thus achieving stable rotation of the nylon pulley;

[0013] 2. The utility model provides an oil filling pipe on the bearing protection assembly, so that when lubricating oil is injected into the oil filling pipe through an oil filling gun, the lubricating oil can be stored in the space formed between the protection ring and the bearing positioning hole, thereby effectively realizing the lubrication of the bearing and further improving the rotation stability of the nylon pulley. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the utility model after the bearing is installed;

[0021] Figure 7 It is a schematic diagram of the main structure of the prior art.

[0022] In the figure: 1. Nylon pulley body; 2. Positioning hole; 3. Washer; 4. Protective ring; 5. Oil filling hole; 6. Oil filling pipe; 7. Maximum oil filling scale line; 8. Bearing. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 6 The utility model provides the following technical solutions: a nylon pulley that is easy to rotate stably, including a nylon pulley body 1, the opening ends of the bearing positioning holes on both sides of the nylon pulley body 1 are installed with bearing protection components, and the bearing protection components include: a washer 3, a protection ring 4, an oil filling hole 5, an oil filling pipe 6 and a maximum oil filling scale line 7.

[0025] Embodiment 1:

[0026] Preferably: the open end surfaces of the bearing positioning holes on both sides of the nylon pulley body 1 are provided with six groups of positioning holes 2 distributed in an annular shape with equal intervals, the inner wall of the positioning hole 2 is a threaded structure, the gasket 3 is made of rubber and fits with the protective ring 4, and the outer diameter of the gasket 3 is the same as the outer diameter of the protective ring 4, and the inner diameter of the gasket 3 is smaller than the inner diameter of the protective ring 4, and the surfaces of the protective ring 4 and the gasket 3 are provided with through holes with the same size and position as the six groups of positioning holes 2.

[0027] When in use, firstly, the washer 3 and the protective ring 4 are sequentially attached to the open end surfaces of the bearing positioning holes on both sides of the nylon pulley body 1, and the through holes opened on the washer 3 and the protective ring 4 are aligned with the six groups of positioning holes 2 one by one, and finally, the bolts are connected with the positioning holes 2 to lock and fix them, so as to cover the bearing 8, thereby effectively preventing the damage caused by dust or external forces in the environment to the bearing 8, reducing abnormal situations such as bead jamming, and thus realizing the stable rotation of the nylon pulley;

[0028] It should be noted here that the inner diameter of the protective ring 4 is the same as the outer diameter of the shaft column of the bearing 8 installed in the bearing positioning hole of the nylon pulley body 1, that is, the inner wall of the protective ring 4 is tangent to the outer wall of the shaft column, and when installing the protective ring 4, grease needs to be applied to its inner wall.

[0029] Embodiment 2:

[0030] Preferably, the oil filling hole 5 is opened inside the protective ring 4, the oil filling pipe 6 is connected to the oil filling hole 5, the maximum oil filling scale line 7 is engraved on the surface of the protective ring 4, the oil filling pipe 6 is L-shaped, and the protective ring 4 is made of PMMA.

[0031] During specific use, the protective ring 4 needs to be surface hardened. Since the PMMA material is transparent, the lubricating oil is injected into the oil filling pipe 6 so that the lubricating oil flows into the space formed between the protective ring 4 and the bearing positioning hole for storage. The amount of oil injected needs to be within the maximum oil filling scale line 7 mark. When the nylon pulley body 1 rotates, the lubricating oil can infiltrate the bearing 8 well, further improving the rotation stability of the nylon pulley body 1.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nylon pulley for stable rotation, comprising a nylon pulley body (1), characterized in that: The open ends of the bearing positioning holes on both sides of the nylon pulley body (1) are both equipped with bearing protection components, and the bearing protection components include: a washer (3), a protection ring (4), an oil filling hole (5), an oil filling pipe (6) and a maximum oil filling scale line (7), the oil filling hole (5) is opened inside the protection ring (4), the oil filling pipe (6) is connected to the oil filling hole (5), and the maximum oil filling scale line (7) is engraved on the surface of the protection ring (4).

2. A nylon pulley for stable rotation according to claim 1, characterized in that: The opening end surfaces of the bearing positioning holes on both sides of the nylon pulley body (1) are provided with six groups of positioning holes (2) distributed in an annular pattern with equal spacing.

3. A nylon pulley for stable rotation according to claim 2, characterized in that: The inner wall of the positioning hole (2) is a threaded structure.

4. A nylon pulley for stable rotation according to claim 1, characterized in that: The gasket (3) is made of rubber and fits the protective ring (4), the outer diameter of the gasket (3) is the same as the outer diameter of the protective ring (4), and the inner diameter of the gasket (3) is smaller than the inner diameter of the protective ring (4).

5. A nylon pulley for stable rotation according to claim 1, characterized in that: The protective ring (4) is made of PMMA material, and the surfaces of the protective ring (4) and the gasket (3) are provided with through holes having the same size and position as the six groups of positioning holes (2).

6. A nylon pulley for stable rotation according to claim 1, characterized in that: The oil injection pipe (6) is L-shaped.

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