Dust removal structure for linear module
By setting an insulating metal layer and an electrostatic adsorption layer on the surface of the guide groove of the linear module, dust is adsorbed by triboelectricity, which solves the problem of dust accumulation in belt-type linear modules and improves the stability and service life of the module.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SANFENG TRANSMISSION TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
Belt-driven linear modules are prone to accumulating dust and dirt during operation, which can cause moving parts to jam or wear, affecting module performance and lifespan.
A dust removal structure is designed, including a belt conveyor assembly and a protective housing. Guide grooves are provided on both sides of the housing. The surface of the guide grooves is provided with an insulating metal layer and an electrostatic adsorption layer. Dust is adsorbed by frictional electrification. When the connecting part slides, the dust in the guide grooves is removed.
This effectively prevents dust from accumulating in the guide groove, maintaining the stability of the module and extending its service life.
Smart Images

Figure CN224181578U_ABST
Abstract
Description
A dust removal structure for linear modules Technical Field
[0001] This utility model relates to the field of linear module technology, and in particular to a dust removal structure for linear modules. Background Technology
[0002] Servo electric cylinders are modular products that integrate servo motors and ball screws. By converting the rotary motion of the servo motor into linear motion, they achieve precise control of rotational speed, torque, and rotational speed, and are widely used in high-precision fields.
[0003] In contrast, belt-driven linear modules experience greater vibration during operation. To improve stability, some designs incorporate guide grooves in the housing to stabilize the tray's movement trajectory; however, this structure easily accumulates dust and dirt. If not cleaned promptly, it can cause jamming or wear of moving parts, ultimately affecting module performance and lifespan. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] To address the aforementioned problems, this utility model provides the following technical solution:
[0006] A dust removal structure for a linear module includes a belt conveyor assembly and a protective housing connected to the belt conveyor assembly. The protective housing has guide grooves on both side walls and a slide at the upper end of the protective housing. The slide has connecting parts that slide in the guide grooves on both sides. The surface of the guide groove is provided with an insulating metal layer. The part of the connecting part that slides in the guide groove is provided with an electrostatic adsorption layer. As the connecting part moves in the guide groove, the electrostatic adsorption layer generates static electricity through friction and adsorbs dust in the guide groove.
[0007] Based on the above technical solution, the present invention can be further improved as follows.
[0008] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the guide groove includes a first groove and a second groove disposed at both ends of the inner cavity of the first groove, and the connecting part is inserted into the first groove and the second groove.
[0009] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the connecting part includes a first part connected to the slide, a second part inserted into the first groove, and a third part inserted into the second groove, with an electrostatic adsorption layer disposed in the third part.
[0010] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the insulating metal layer is disposed in the second groove.
[0011] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the second tank is made of aluminum and the insulating metal layer is a PTFE coating, the surface of the third part is made of copper and the electrostatic adsorption layer is a polyimide film.
[0012] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the second groove is V-shaped, and the third part is adapted to the second groove.
[0013] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the protective shell is connected to a cover at both ends, and the two ends of the second groove extend from the left and right ends of the protective shell and are connected to the cover.
[0014] As a preferred embodiment of the dust removal structure for linear modules of this utility model, the cover is provided with a storage port that communicates with the first and second grooves on the corresponding protective housing.
[0015] The beneficial effects of this utility model are: through the sliding connection between the connecting part and the guide groove, when the belt conveyor assembly drives the slide on the protective housing to move, due to the friction between the electrostatic adsorption layer and the insulating metal layer on the connecting part, the connecting part is charged by friction to adsorb the dust in the guide groove, so that the operator can wipe the dust on the connecting part to avoid the accumulation of dust in the guide groove. Attached Figure Description
[0016] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0017] Figure 1 is a perspective view of the entire embodiment.
[0018] Figure 2 is a perspective view of the protective casing in this embodiment.
[0019] Figure 3 is a perspective view of the connecting part in this embodiment.
[0020] Figure 4 is a perspective view of the cap in this embodiment.
[0021] In the figure: belt conveyor assembly 100, protective housing 200, guide groove 201, insulating metal layer 201-1, first groove 201-2, second groove 201-3, slide 300, connecting part 301, electrostatic adsorption layer 301-1, first part 301-2, second part 301-3, third part 301-4, cover 400, and storage port 401. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0025] Example
[0026] Referring to Figures 1 to 4, an embodiment of the present invention is provided, which provides a dust removal structure for a linear module, a belt conveyor assembly 100, and a protective housing 200 connected to the belt conveyor assembly 100. The protective housing 200 has guide grooves 201 on both side walls, a slide block 300 at the upper end of the protective housing 200, and connecting portions 301 that slide within the guide grooves 201 on both sides of the slide block 300. An insulating metal layer 201-1 is provided on the surface of the guide groove 201, and an electrostatic adsorption layer 301-1 is provided on the portion of the connecting portion 301 that slides within the guide groove 201. As the connecting portion 301 moves within the guide groove 201, the electrostatic adsorption layer 301-1 generates static electricity through friction and adsorbs dust within the guide groove 201. Through the sliding connection between the connecting part 301 and the guide groove 201, when the belt conveyor assembly 100 drives the slide 300 on the protective housing 200 to move, due to the friction between the electrostatic adsorption layer 301-1 and the insulating metal layer 201-1 on the connecting part 301, the connecting part 301 is charged by friction to adsorb the dust in the guide groove 201, so that the operator can wipe the dust on the connecting part 301 to avoid the accumulation of dust in the guide groove 201.
[0027] The guide groove 201 includes a first groove 201-2 and a second groove 201-3 located at both ends of the inner cavity of the first groove 201-2. The connecting part 301 is inserted into the first groove 201-2 and the second groove 201-3. By opening the second groove 201-3 and inserting the connecting part 301 into the second groove 201-3, the connecting part 301, which slides in the guide groove 201, will not be restricted by the second groove 201-3 and will not separate from the guide groove 201, thus ensuring the smoothness of the movement of the connecting part 301 connected to it.
[0028] The connecting part 301 includes a first part 301-2 connected to the slide 300, a second part 301-3 inserted into the first groove 201-2, and a third part 301-4 inserted into the second groove 201-3. An electrostatic adsorption layer 301-1 is disposed in the third part 301-4. Since the second groove 201-3 is recessed within the first groove 201-2, and most dust accumulates in the second groove 201-3, the electrostatic adsorption layer 301-1 is disposed in the third part 301-4, allowing the third part 301-4 to adsorb dust within the second groove 201-3.
[0029] An insulating metal layer 201-1 is disposed inside the second tank 201-3. The insulating metal layer 201-1 can cover the metal surface to prevent charge transfer or magnetization during friction, making the metal unable to attract dust. When used in conjunction with the electrostatic adsorption layer 301-1, it can effectively prevent dust from accumulating inside the second tank 201-3, instead moving it to the third part 301-4. This makes it easier for operators to clean the dust inside the second tank 201-3 and also avoids the difficulty in cleaning caused by dust accumulating in the dead corners inside the second tank 201-3.
[0030] The second tank 201-3 is made of aluminum, and the insulating metal layer 201-1 is a PTFE coating. The surface of the third part 301-4 is made of copper, and the electrostatic adsorption layer 301-1 is a polyimide film. Dust particles in the air may carry a weak charge due to friction, collision, or radiation, but this charge is usually small and randomly polarized. When they approach a charged surface, the dust particles become polarized and are thus adsorbed. Because the third part 301-4 is made of copper, after friction with the polyimide electrostatic adsorption layer 301-1, the polyimide easily becomes negatively charged, while the copper becomes positively charged. At this time, the negatively charged electrostatic adsorption layer 301-1 can directly adsorb positively charged dust and neutral dust, while negatively charged dust can be adsorbed through the third part 301-4, which is not coated with the electrostatic adsorption layer 301-1. Furthermore, because the second tank 201-3 is made of aluminum, and PTFE has good insulation properties (resistivity > 10¹), the dust particles are easily adsorbed. 8 (Ω·m) prevents the aluminum sheet from exchanging charges with the outside world, so that it cannot accumulate static charge, that is, the surface of the second tank 201-3 always remains electrically neutral and has no adsorption capacity.
[0031] The second tank 201-3 is V-shaped, and the third part 301-4 is adapted to the second tank 201-3.
[0032] Both ends of the protective housing 200 are connected to the caps 400. The two ends of the second groove 201-3 extend from the left and right ends of the protective housing 200 and are connected to the caps 400.
[0033] The cover 400 is provided with a storage port 401 on the protective housing 200, which is connected to the first tank 201-2 and the second tank 201-3. Even if the third part 301-4 does not have a dust adsorption function, because the third part 301-4 is adapted to the second tank 201-3, when the third part 301-4 moves to the tail of the second tank 201-3, it can still push the dust in the second tank 201-3 into the storage port 401 so that the operator can clean the dust.
[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A dust removal structure for a linear module, comprising a belt conveyor assembly (100) and a protective housing (200) connected to the belt conveyor assembly (100), characterized in that: The protective housing (200) has guide grooves (201) on both sides, and a slide (300) is provided at the upper end of the protective housing (200). The slide (300) has connecting parts (301) on both sides that slide in the guide grooves (201). The surface of the guide groove (201) is provided with an insulating metal layer (201-1). The part of the connecting part (301) that slides in the guide groove (201) is provided with an electrostatic adsorption layer (301-1). As the connecting part (301) moves in the guide groove (201), the electrostatic adsorption layer (301-1) generates static electricity through friction and adsorbs dust in the guide groove (201).
2. The dust removal structure for a linear module as described in claim 1, characterized in that: The guide groove (201) includes a first groove (201-2) and a second groove (201-3) located at both ends of the inner cavity of the first groove (201-2). The connecting part (301) is inserted into the first groove (201-2) and the second groove (201-3).
3. The dust removal structure for linear modules as described in claim 2, characterized in that: The connecting part (301) includes a first part (301-2) connected to the slide (300), a second part (301-3) inserted into the first groove (201-2), and a third part (301-4) inserted into the second groove (201-3), wherein the electrostatic adsorption layer (301-1) is disposed in the third part (301-4).
4. The dust removal structure for a linear module as described in claim 3, characterized in that: The insulating metal layer (201-1) is disposed in the second tank (201-3).
5. The dust removal structure for a linear module according to claim 4, wherein: The second tank (201-3) is made of aluminum, and the insulating metal layer (201-1) is a PTFE coating. The surface of the third part (301-4) is made of copper, and the electrostatic adsorption layer (301-1) is a polyimide film.
6. The dust removal structure for a linear module as described in claim 5, characterized in that: The second tank (201-3) is V-shaped, and the third part (301-4) is adapted to the second tank (201-3).
7. The dust removal structure for a linear module as described in claim 1, characterized in that: The protective housing (200) is connected to a cover (400) at both the left and right ends. The two ends of the second groove (201-3) extend from the left and right ends of the protective housing (200) and are connected to the cover (400).
8. The dust removal structure for a linear module according to claim 7, wherein: The cover (400) has a storage opening (401) on the corresponding protective shell (200) that communicates with the first groove (201-2) and the second groove (201-3).