Impact-resistant plastic bearing
By setting a tight fit connection between the metal reinforcement ring and the flexible connecting ring at the port of the plastic bearing body, the problems of low strength and poor stability of the existing plastic bearings are solved, and impact resistance of high stability and compact structures are achieved.
Patent Information
- Application Number
- CN202422509510.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing plastic bearings are prone to breakage and have poor stability due to their low strength, making them difficult to effectively use in impact environments.
A metal reinforcement ring and a flexible connecting ring are arranged at the body port of the plastic bearing, and they are tightly matched and connected through the connecting structure to form a stable connection and enhance impact resistance.
Improves the impact resistance and stability of plastic bearings while keeping the structure compact and not taking up too much space.
Smart Images
Figure CN223076029U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bearings and relates to an impact-resistant plastic bearing. Background Art
[0002] A plastic bearing is a bearing made of plastic material, which has many unique performance advantages and performs excellently in some application scenarios. Plastic bearings are usually used in environments that require light weight, low noise, low friction, and self-lubrication.
[0003] Existing plastic bearings are usually of an integral cylindrical structure. Due to the limitations of the plastic material itself, the strength of existing plastic bearings is relatively low, and they are prone to breakage during actual use, and the stability is relatively poor. Summary of the Invention
[0004] The purpose of the utility model is to provide an impact-resistant plastic bearing with high stability and compact structure for the above problems existing in the prior art.
[0005] The purpose of the utility model can be achieved by the following technical solutions:
[0006] An impact-resistant plastic bearing includes a body made of plastic material and in a cylindrical shape. It is characterized in that a through deformation notch is axially provided along the side of the body, and a connecting seat and a positioning seat which are annularly recessed are provided at the port of the body. The connecting seat and the positioning seat are arranged from outside to inside. It also includes an arc-shaped reinforcing ring and a connecting ring. The reinforcing ring is made of metal material, and the connecting ring is made of flexible material. The connecting ring is embedded at the positioning seat and is tightly fitted and connected with it. The reinforcing ring is located at the connecting seat, and there is a connecting structure between the connecting ring and the reinforcing ring that can lock and connect the two.
[0007] In the above-mentioned impact-resistant plastic bearing, a protruding contact edge is provided along the circumferential direction at the inner edge of the reinforcing ring.
[0008] In the above-mentioned impact-resistant plastic bearing, the inner side of the contact edge is a contact surface, and the contact surface is inclined with respect to the axis of the body.
[0009] In the above-mentioned impact-resistant plastic bearing, the reinforcing ring is a copper ring.
[0010] In the above-mentioned impact-resistant plastic bearing, the connecting ring is made of rubber material.
[0011] In the above-mentioned impact-resistant plastic bearing, the outer edge of the reinforcing ring abuts against the side wall of the positioning seat.
[0012] In the above-mentioned impact-resistant plastic bearing, the width dimension of the connecting ring matches the width dimension of the positioning seat.
[0013] In the above-mentioned impact-resistant plastic bearing, the connecting structure includes a through hole 1 penetrating through the reinforcing ring, and the side of the connecting ring has a protruding bolt, and the above-mentioned bolt is embedded in the through hole 1.
[0014] In the above-mentioned impact-resistant plastic bearing, the outer end of the bolt has a convex head, the outer diameter of the convex head is larger than the outer diameter of the bolt, the outer diameter of the bolt matches the inner diameter of the through hole 1, and the above-mentioned reinforcing ring is tightly pressed between the convex head and the connecting ring.
[0015] In the above-mentioned impact-resistant plastic bearing, the convex head is hemispherical, and the above-mentioned convex head, bolt and connecting ring are of an integral structure.
[0016] In the above-mentioned impact-resistant plastic bearing, the connecting structure further includes a through hole 2 penetrating through the connecting ring, and the reinforcing ring has a protruding catch, and the above-mentioned catch is embedded in the through hole 2.
[0017] Compared with the prior art, in this impact-resistant plastic bearing, since a connecting ring and a reinforcing ring are provided at the port of the body, the connecting ring and the reinforcing ring are connected through a connecting structure, and the connecting ring is tightly fitted and connected at the positioning seat, so that the reinforcing ring is firmly positioned and connected at the connecting seat indirectly.
[0018] During normal operation, the body is stressed. When subjected to an external impact force, due to the deformation notch on the body, the body will deform appropriately. After deformation, the reinforcing ring ensures the strength of the body, and finally indirectly improves the impact resistance of the plastic bearing, and its stability is relatively high.
[0019] At the same time, since the connecting ring and the reinforcing ring are located at the inner port of the body, they do not occupy too much space, and the structure of the entire plastic bearing is relatively compact, with high practical value. Description of the Drawings
[0020] Figure 1 is a three-dimensional structural schematic diagram of this impact-resistant plastic bearing.
[0021] Figure 2 is a sectional structural schematic diagram of this impact-resistant plastic bearing.
[0022] In the figure, 1. Body; 1a. Deformation notch; 1b. Positioning seat; 1c. Connecting seat; 2. Reinforcing ring; 2a. Contact edge; 2b. Through hole 1; 2c. Catch; 3. Connecting ring; 3a. Bolt; 3a1. Convex head; 3b. Through hole 2. Detailed Embodiment
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.
[0026] As Figure 1 and Figure 2 shown, the impact-resistant plastic bearing includes a body 1 made of plastic material and in a cylindrical shape. A deformed notch 1a penetrating along the axial direction is provided on the side of the body 1. A connecting seat 1c and a positioning seat 1b recessed in a ring shape are provided at the port of the body 1. The connecting seat 1c and the positioning seat 1b are arranged from outside to inside. It further includes a reinforcing ring 2 in an arc shape and a connecting ring 3. The reinforcing ring 2 is made of metal material, and the connecting ring 3 is made of flexible material. The connecting ring 3 is embedded at the positioning seat 1b and is tightly fitted and connected therewith. The reinforcing ring 2 is located at the connecting seat 1c. A connecting structure capable of locking and connecting the connecting ring 3 and the reinforcing ring 2 is provided between the connecting ring 3 and the reinforcing ring 2.
[0027] The impact-resistant plastic bearing creatively and stably connects the connecting ring 3 and the reinforcing ring 2 through the connecting structure. Since the connecting ring 3 is tightly fitted and connected at the positioning seat 1b, finally the reinforcing ring 2 can be stably located at the connecting seat 1c.
[0028] When the plastic bearing is in normal use, the body 1 is the stressed part. Due to the plastic material of the plastic bearing itself, self-lubrication can be achieved through the body 1.
[0029] When the plastic bearing is subjected to an external impact force, due to the through-shaped deformation notch 1a on the side of the body 1, the body 1 can deform appropriately. Since the reinforcing ring 2 is made of a metal material, the reinforcing ring 2 can prevent the body 1 from excessive deformation, thus ensuring that the entire plastic bearing has good impact resistance.
[0030] At the inner edge of the reinforcing ring 2, there is a protruding contact edge 2a along its circumference.
[0031] The inner side of the contact edge 2a is a contact surface, and the contact surface is inclined with respect to the axis line of the body 1.
[0032] The contact surface on the inclined contact edge 2a gradually contacts the shaft-like part. While ensuring that the plastic bearing has relatively high strength, it can also prevent the reinforcing ring 2 from suddenly receiving a relatively large extrusion force, effectively improving the stability of the entire plastic bearing.
[0033] The reinforcing ring 2 is a copper ring.
[0034] The connecting ring 3 is made of rubber material.
[0035] The outer edge of the reinforcing ring 2 abuts against the side wall of the positioning seat 1b.
[0036] The width dimension of the connecting ring 3 matches the width dimension of the positioning seat 1b.
[0037] Such a structure can make the connecting ring 3 tightly fit and connect at the positioning seat 1b of the body 1.
[0038] The connecting structure includes a through hole 2b penetrating through the reinforcing ring 2, and a protruding pin 3a on the side of the connecting ring 3. The pin 3a is embedded at the through hole 2b.
[0039] After the pin 3a is embedded in the through hole 2b, the reinforcing ring 2 and the connecting ring 3 can be stably positioned and connected. Since the flexible connecting ring 3 is tightly fit and connected inside the body 1, the reinforcing ring 2 is ultimately indirectly stably fixed inside the body 1.
[0040] The outer end of the pin 3a has a convex head 3a1. The outer diameter dimension of the convex head 3a1 is larger than the outer dimension of the pin 3a. The outer diameter dimension of the pin 3a matches the inner diameter dimension of the through hole 2b. The reinforcing ring 2 is tightly pressed between the convex head 3a1 and the connecting ring 3.
[0041] The convex head 3a1 is hemispherical, and the convex head 3a1, the pin 3a, and the connecting ring 3 are of an integral structure.
[0042] The setting of the convex head 3a1 can make the reinforcing ring 2 and the connecting ring 3 more stably connected together.
[0043] The connecting structure further includes a through hole two 3b penetrating through the connecting ring 3, and the reinforcing ring 2 is provided with a protruding clamping head 2c, and the above clamping head 2c is embedded at the through hole two 3b.
[0044] After the clamping head 2c is embedded in the through hole two 3b, the connection stability between the reinforcing ring 2 and the connecting ring 3 can be further improved.
[0045] In this embodiment, in order to improve the connection stability between the reinforcing ring 2 and the connecting ring 3, the number of the pins 3a is several, and several pins 3a are circumferentially and uniformly distributed on the connecting ring 3, and the through hole one 2b is arranged in one-to-one correspondence with the pins 3a. At the same time, the number of the clamping heads 2c is several, and several clamping heads 2c are circumferentially and uniformly distributed on the reinforcing ring 2, and the through hole two 3b is arranged in one-to-one correspondence with the clamping heads 2c.
[0046] Since the connecting ring and the reinforcing ring are arranged at the port of the main body of this impact-resistant plastic bearing, the connecting ring and the reinforcing ring are connected through the connecting structure, and the connecting ring is tightly and fittingly connected at the positioning seat, so that the reinforcing ring is firmly positioned and connected at the connecting seat indirectly.
[0047] During the normal operation process, the main body is stressed. When receiving an external impact force, due to the deformation notch on the main body, the main body will deform appropriately. After deformation, the reinforcing ring ensures the strength of the main body, and finally indirectly improves the impact resistance of the plastic bearing, and its stability is relatively high.
[0048] At the same time, since the connecting ring and the reinforcing ring are located at the inner port of the main body, they will not occupy too much space, and the structure of the whole plastic bearing is relatively compact, and has a very high practical value.
[0049] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0050] Those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as appropriate changes and variations are made to the above embodiments within the spirit of the present invention, they fall within the scope of the present invention claimed.
Claims
1. An impact-resistant plastic bearing, comprising a cylindrical body made of plastic material, characterized in that, The side part of the body has a through deformation notch along its axial direction. At the port of the body, there are an annular recessed connecting seat and a positioning seat. The above-mentioned connecting seat and positioning seat are arranged from outside to inside. It also includes an arc-shaped reinforcing ring and a connecting ring. The reinforcing ring is made of metal material, and the connecting ring is made of flexible material. The above-mentioned connecting ring is embedded at the positioning seat and the two are tightly fitted and connected. The above-mentioned reinforcing ring is located at the connecting seat. There is a connecting structure between the connecting ring and the reinforcing ring that can lock and connect the two.
2. The impact-resistant plastic bearing according to claim 1, characterized in that, There is a protruding contact edge along the circumferential direction at the inner edge of the reinforcing ring.
3. The impact-resistant plastic bearing according to claim 2, wherein The inner side of the contact edge is a contact surface, and the above-mentioned contact surface is inclined to the axis of the body.
4. The impact-resistant plastic bearing according to claim 3, characterized in that, The reinforcing ring is a copper ring.
5. The impact-resistant plastic bearing according to claim 4, characterized in that, The connecting ring is made of rubber material.
6. The impact-resistant plastic bearing according to claim 5, wherein, The outer edge of the reinforcing ring abuts against the side wall of the positioning seat.
7. The impact-resistant plastic bearing according to claim 6, characterized in that, The width dimension of the connecting ring matches the width dimension of the positioning seat.
8. The impact-resistant plastic bearing according to claim 7, wherein The connecting structure includes a through hole one on the reinforcing ring. There is a protruding plug on the side of the connecting ring, and the above-mentioned plug is embedded in the through hole one.
9. The impact-resistant plastic bearing according to claim 8, wherein There is a convex head at the outer end of the plug. The outer diameter dimension of the convex head is larger than the outer dimension of the plug. The outer diameter dimension of the plug matches the inner diameter dimension of the through hole one. The above-mentioned reinforcing ring is tightly pressed between the convex head and the connecting ring.
10. The impact-resistant plastic bearing according to claim 9, wherein, The connecting structure also includes a through hole two on the connecting ring. There is a protruding clamping head on the reinforcing ring, and the above-mentioned clamping head is embedded in the through hole two.