Rubber-coated follower
By encasing the servo motor body in a protective kit and incorporating internal retaining rings and gaskets, the reliability and corrosion resistance issues of the servo motor under vibration and harsh environments are resolved, achieving higher vibration resistance and installation stability.
Patent Information
- Application Number
- CN202520681450.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-11
AI Technical Summary
Existing servo motors are prone to loosening under mechanical vibration, causing interference between the colloid and the workpiece. Furthermore, they are susceptible to rusting in harsh environments, which reduces their load-bearing capacity and leads to slippage.
The design features a rubber-coated follower with a follower body made of SUS304 material. The outer side is covered with a protective kit made of TUP material and has knurling. The inner side has a retaining ring and a rubber gasket to increase the coefficient of friction and vibration resistance. The set screw and set nut ensure that the workpiece installation area is free from interference.
It improves the vibration and shock resistance and reliability of the servo, avoids interference between the colloid and the workpiece, enhances the corrosion resistance in harsh environments, and reduces the probability of slippage.
Smart Images

Figure CN223938598U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical parts technology, and in particular to a rubber-coated follower. Background Technology
[0002] In the current mechanical field, followers are widely used transmission components, mainly used in cam mechanisms or other motion systems to achieve motion transmission and load support. Typically, a follower consists of an outer ring and a support that acts as a shaft. In terms of usage, a follower can be used as a guide roller instead of a bearing, in which case the support of the follower bears the load. A cam follower can also be used as a transmission roller, in which case the outer ring of the cam follower bears the load. In terms of installation position, when the mating side of the cam follower is a plane, the cam follower can perform linear motion; when the mating side is a curved surface, the cam follower can also perform curved oscillation.
[0003] Existing follower devices are prone to loosening under mechanical vibration, as they rely solely on the nut and screw to fasten the workpiece, resulting in assembly gaps that affect reliability. Furthermore, the lack of a sleeve between the protruding colloid and the nut allows the colloid to easily contact and interfere with the workpiece, preventing the follower from functioning properly. Additionally, the follower materials are generally SUJ2 and SUS440C, which are prone to rusting in harsh environments, reducing component load-bearing capacity and causing slippage. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a rubber-coated follower to solve the technical problems of the existing follower having a simple structure, the rubber easily interfering with the workpiece, and being prone to rusting and reducing the load-bearing capacity of the components in harsh environments, as well as slippage.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A rubber-coated follower, comprising:
[0007] The follower body has a nut threadedly connected to the outer side of the threaded end at the right end of the follower body, and the upper and lower sides of the front end of the nut are provided with locking parts.
[0008] A protective kit, which covers the outer left end of the follower body, has knurled uniformly on its outer circumferential surface;
[0009] A retaining ring, which is installed inside the protective kit and located inside the left end of the protective kit;
[0010] A gasket, wherein the gasket is fitted onto the side of the follower body near the nut.
[0011] Furthermore, the protective kit is made of TUP material, and the protective kit is interference-fitted with the left end of the follower body.
[0012] Furthermore, the protective kit has an integrally formed annular retaining ring at the right end near the gasket that is adapted to the follower body.
[0013] Furthermore, the protective kit has a receiving cavity in the middle that is adapted to the follower body.
[0014] Furthermore, the left end of the protective kit and the side near the receiving cavity are provided with a stepped groove that is adapted to the retaining ring, and the retaining ring is installed inside the stepped groove.
[0015] Furthermore, the inner diameter of the stepped groove is smaller than the inner diameter of the receiving cavity.
[0016] Furthermore, a mounting portion for workpiece mounting is formed between the step at the left end of the follower body and the gasket.
[0017] Furthermore, the gasket is made of rubber.
[0018] Furthermore, both of the fastening components include a set screw, and the upper and lower sides of the front end of the nut are provided with threaded holes that cooperate with the set screw, and the set screw is threaded into the inside of the threaded hole.
[0019] Furthermore, the material of the servo body is SUS304.
[0020] The beneficial effects of this utility model are:
[0021] This invention features a knurled protective sleeve covering the left end of the follower body, with an integrally formed annular retaining ring at the right end. This not only significantly improves the friction coefficient of the protective sleeve but also reduces the probability of slippage in the follower body. Simultaneously, a mounting section is formed between the step of the follower body and the washer, defining the workpiece's mounting area and preventing interference between the workpiece and the protective sleeve. An additional washer between the workpiece and the nut provides cushioning and shock absorption, while a set screw is added to the nut for further tightening. This enhances the follower body's resistance to vibration and impact, as well as its reliability. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1This is a three-dimensional structural schematic diagram of the present invention;
[0024] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0025] Figure 3 For the present utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0026] Figure 4 This is a schematic diagram of the exploded structure of this utility model;
[0027] Figure 5 This is a three-dimensional schematic diagram of the protective kit of this utility model.
[0028] The markings in the diagram are as follows: 1. Follower body; 2. Protective kit; 3. Knurling; 4. Retaining ring; 5. Threaded end; 6. Nut; 7. Washer; 8. Set screw; 9. Mounting part; 10. Annular retaining ring; 11. Receiving cavity; 12. Step groove. Detailed Implementation
[0029] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0030] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.
[0031] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.
[0032] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0033] Please see Figure 1 , Figure 2 and Figure 3As shown, a rubber-coated follower includes: a follower body 1, with a nut 6 threadedly connected to the outer side of the threaded end 5 at the right end of the follower body 1, and fastening elements provided on both the upper and lower sides of the front end of the nut 6; a protective sleeve 2, which covers the outer side of the left end of the follower body 1, and the outer circumferential surface of the protective sleeve 2 is uniformly provided with knurling 3; a retaining ring 4, which is installed inside the protective sleeve 2 and located inside the left end of the protective sleeve 2; and a washer 7, which is sleeved on the side of the follower body 1 near the nut 6. The follower body 1 is made of SUS304 material, which can improve the corrosion resistance of the follower body 1; the knurling 3 process on the outer surface of the protective sleeve 2 increases the friction coefficient of the protective sleeve 2, thereby reducing the probability of slippage of the follower body 1; at the same time, the washer 7 is added between the workpiece and the nut 6 to play a role in buffering and shock absorption, and a threaded hole is added at the nut 6 and a set screw 8 is used for further tightening, which improves the vibration and impact resistance of the follower body 1.
[0034] During assembly, the protective kit 2 is wrapped around the outer left end of the stainless steel follower body 1. Then, the retaining ring 4 is installed on the left end of the follower body 1 for limiting. Next, the nut 6 is threaded into the threaded end 5 on the right end of the follower body 1. A washer 7 is installed on the right end of the follower body 1 and on one side of the nut 6. Finally, a set screw 8 is installed on the threaded hole of the nut 6. During use, the workpiece is installed between the step of the follower body 1 and the washer 7 so that it can withstand a certain load. The protective kit 2 contacts the track and is coated with rubber under the action of the workpiece to achieve motion transmission.
[0035] Specifically, such as Figure 4 and Figure 5 As shown, the protective kit 2 is made of TUP material, and the protective kit 2 is interference-fitted with the left end of the follower body 1; TUP material is a thermoplastic elastomer, which not only has a wide range of hardness that can be adjusted according to needs, but also has good wear resistance, which can greatly improve the vibration resistance of the follower body 1.
[0036] Specifically, such as Figure 5 As shown, the protective kit 2 has an annular retaining ring 10 integrally formed at the right end near the gasket 7, which is adapted to the follower body 1; wherein the annular retaining ring 10 can not only protect one side of the follower body 1, but also avoid interference with the workpiece.
[0037] Specifically, such as Figure 3 and Figure 5 As shown, the protective kit 2 has a receiving cavity 11 in the middle that is adapted to the follower body 1; wherein the left end of the follower body 1 can be interference-fitted into the inside of the receiving cavity 11, and with the help of the annular retaining ring 10, the follower body 1 can be tightly installed inside the protective kit 2.
[0038] Specifically, such as Figure 3and Figure 5 As shown, the left end of the protective kit 2 and the side near the receiving cavity 11 are provided with a stepped groove 12 that is adapted to the retaining ring 4. The retaining ring 4 is installed inside the stepped groove 12. The retaining ring 4 can be installed inside the stepped groove 12 so that the two sides of the retaining ring 4 contact the follower body 1 and the protective kit 2 respectively. Thus, the annular retaining ring 10 and the retaining ring 4 can firmly limit the follower body 1 inside the protective kit 2, and also facilitate the disassembly of the two.
[0039] Specifically, such as Figure 3 and Figure 5 As shown, the inner diameter of the stepped groove 12 is smaller than the inner diameter of the receiving cavity 11; this facilitates the installation of the follower body 1 into the protective sleeve 2, and also facilitates the installation of the retaining ring 4.
[0040] Specifically, such as Figures 1-3 As shown, a mounting portion 9 for workpiece mounting is formed between the step at the left end of the follower body 1 and the gasket 7; wherein the mounting portion 9 between the step at the left end of the follower body 1 and the gasket 7 clearly defines the assembly area of the workpiece on the follower body 1, avoids the incorrect installation method of the workpiece being tightly attached to the protective kit 2, and improves the ease of use of the follower body 1.
[0041] Specifically, the material of gasket 7 is rubber; the rubber material is flexible and can improve shock absorption performance.
[0042] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, both fasteners include a set screw 8. The upper and lower sides of the front end of the nut 6 are provided with threaded holes that mate with the set screw 8. The set screw 8 is threaded into the inside of the threaded hole. The set screw 8 can restrict the nut 6 to prevent it from loosening.
[0043] Specifically, the follower body 1 is made of SUS304 material; the SUS304 material can improve the corrosion resistance of the follower body 1.
[0044] In summary, compared with the prior art, this rubber-coated follower has at least the following beneficial effects: By covering the left end of the follower body 1 with a protective kit 2 with knurling 3, and the right end of the protective kit 2 with an integrally formed annular retaining ring 10, this invention can not only greatly improve the friction coefficient of the protective kit 2, but also reduce the probability of slippage of the follower body 1; at the same time, a mounting part 9 is formed between the step of the follower body 1 and the gasket 7, which determines the installation area of the workpiece and avoids interference between the workpiece and the protective kit 2. The addition of the gasket 7 between the workpiece and the nut 6 plays a role in buffering and shock absorption, and the addition of the set screw 8 at the nut 6 further tightens it, thereby improving the vibration and impact resistance and reliability of the follower body 1.
[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A rubber-coated follower, characterized in that, include: Follower body (1), the threaded end (5) at the right end of the follower body (1) is threaded with a nut (6), and the upper and lower sides of the front end of the nut (6) are provided with fastening parts; The protective kit (2) covers the outer left side of the follower body (1), and the outer circumferential surface of the protective kit (2) is uniformly provided with knurling (3); A retaining ring (4) is installed inside the protective kit (2) and located inside the left end of the protective kit (2); A gasket (7) is fitted onto the side of the follower body (1) near the nut (6).
2. The rubber-coated follower according to claim 1, characterized in that, The protective kit (2) is made of TUP material, and the protective kit (2) is interference-fitted with the left end of the follower body (1).
3. The rubber-coated follower according to claim 2, characterized in that, The protective kit (2) has an integrally formed annular retaining ring (10) at the right end near the gasket (7) that is adapted to the follower body (1).
4. The rubber-coated follower according to claim 3, characterized in that, The protective kit (2) has a receiving cavity (11) in the middle that is adapted to the follower body (1).
5. A rubber-coated follower according to claim 4, characterized in that, The left end of the protective kit (2) and the side near the receiving cavity (11) are provided with a stepped groove (12) that is adapted to the retaining ring (4), and the retaining ring (4) is installed inside the stepped groove (12).
6. The rubber-coated follower according to claim 5, characterized in that, The inner diameter of the stepped groove (12) is smaller than the inner diameter of the receiving cavity (11).
7. A rubber-coated follower according to claim 6, characterized in that, A mounting portion (9) for workpiece mounting is formed between the step at the left end of the follower body (1) and the gasket (7).
8. A rubber-coated follower according to claim 7, characterized in that, The gasket (7) is made of rubber.
9. A rubber-coated follower according to claim 8, characterized in that, Both of the fastening components include a set screw (8), and the upper and lower sides of the front end of the nut (6) are provided with threaded holes that cooperate with the set screw (8), and the set screw (8) is threadedly connected to the inside of the threaded hole.
10. A rubber-coated follower according to claim 9, characterized in that, The follower body (1) is made of SUS304 material.