Dust removal device of linear motor
By designing a dust removal unit and duct assembly for linear motors, a dust removal device is used to remove dust through air supply and exhaust mechanisms. This solves the problems of dust accumulation affecting the accuracy of linear motors and the cumbersome disassembly and cleaning process, achieving a highly efficient and splash-free cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAXING WEINENG ELECTRIC CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-01
AI Technical Summary
After prolonged use, dust accumulates between the guide rails of a linear motor, affecting its accuracy. Disassembly and cleaning are tedious, and manual cleaning can easily cause dust to scatter.
Design a dust removal device that includes a dust removal unit and a duct assembly. The device utilizes a blower and exhaust mechanism in conjunction with a filter structure. It is operated by a hand handle. The blower blows out high-speed gas to remove dust, and the exhaust mechanism sucks out and filters the gas. The cover is held in place by springs on both sides of the motor to accommodate different widths.
It achieves efficient cleaning of dust inside linear motors, avoids dust splashing, is applicable to different motor models, and simplifies the cleaning process.
Smart Images

Figure CN224181561U_ABST
Abstract
Description
A dust removal device for a linear motor Technical Field
[0001] This utility model relates to the field of motor dust removal technology, specifically a dust removal device for a linear motor. Background Technology
[0002] Linear motors are often simply described as flattened rotary motors, but the working principle is the same. The mover is made by compressing coils together with epoxy material; the magnetic track is made by fixing magnets (usually high-energy rare-earth magnets) to steel. The mover of the motor includes coil windings, Hall element circuit boards, a thermostat (temperature sensor monitors temperature), and electronic interfaces. In rotary motors, the mover and stator require rotary bearings to support the mover and ensure air gap between the moving parts. Similarly, linear motors require linear guides to maintain the position of the mover in the magnetic field generated by the magnetic track. Just as the encoder of a rotary servo motor is mounted on the shaft to provide position feedback, a linear motor requires a feedback device for linear position—a linear encoder—which can directly measure the position of the load to improve the positional accuracy of the load.
[0003] Because there is a gap between the linear guide and the slide, dust will accumulate between the guides after long-term use. When the dust accumulates too much, it will directly affect the accuracy of the linear motor and easily cause damage to the components. Therefore, the linear motor needs to be cleaned regularly. One method is to directly disassemble the linear motor for cleaning, which is more cumbersome. Another method is to remove the dust directly by brushing or blowing air. For this reason, we provide a dust removal device for linear motors. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this utility model provides a dust removal device for linear motors, which solves the problems mentioned in the background art, such as the cumbersome disassembly and cleaning process and the tendency for manual cleaning to cause large-scale dust dispersion.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a dust removal device for a linear motor, comprising a dust removal unit and a duct assembly;
[0006] The dust removal unit includes a housing with a handle. A dust removal hood is detachably connected to one end of the housing. An air supply mechanism is installed inside the housing. An exhaust mechanism is installed inside the dust removal hood. A filter structure is also installed inside the housing, located at the air inlet of the exhaust mechanism.
[0007] The conduit assembly includes two corrugated hoses fixedly connected to the side wall of the housing. One end of each corrugated hose is connected to a cap. The two caps are used to close the two sides of the linear motor to form a fluid channel. The corrugated hoses facilitate bending and extension.
[0008] Optionally, the handle has a power supply and a control chip installed inside, and a switch is installed outside the handle to issue control commands to the control chip. The switch can control the power supply to be turned on and off.
[0009] Optionally, a power cover is threaded to the end of the handle, and a small hole is provided on the side wall of the handle for heat dissipation of the power supply, which supplies power to various electrical components.
[0010] Optionally, the air supply mechanism includes a blower installed inside the housing and an air supply dust cover. The air supply dust cover is connected to the air inlet of the housing, and the blower blows out high-pressure gas to blow out the dust.
[0011] Optionally, the exhaust mechanism includes an exhaust fan installed on the inner wall of the dust collector and an exhaust dust cover, the exhaust dust cover being connected to the air outlet of the dust collector, and the exhaust fan drawing out the filtered gas.
[0012] Optionally, the interior of the housing is also connected to a partition plate, which separates the two corrugated hoses into two independent spaces and divides the airflow into a motion trajectory.
[0013] Optionally, the filter structure is a conical filter cup, and the material of the conical filter cup is one of cellulose, felt and PP cotton. One end of the conical filter cup has a threaded head that is threaded to the partition plate. The filter structure is hollow inside, and the side wall allows for airflow channels. The airflow enters the inner wall of the filter structure after being filtered by the filter structure through the outer wall of the inlet end and flows outward.
[0014] Optionally, the conduit assembly further includes a retainer fixedly connected to the side wall of the housing. A slide rod is fixedly installed on the side wall of the retainer, and a sliding sleeve is slidably connected to the outer wall of the slide rod. The side wall of the sliding sleeve is fixedly connected to the cover via a connecting rod. A spring is fixedly connected between the sliding sleeve and the retainer. When the spring is stretched, it provides elastic potential energy for the sliding sleeve to slide toward the retainer. The spring can pull the two covers to slide on the slide rod through the sliding sleeve, thereby facilitating clamping on both sides of the linear motor to form a convection effect.
[0015] This utility model provides a dust removal device for a linear motor, which has the following beneficial effects:
[0016] This linear motor dust removal device, through the arrangement of the dust removal unit and duct assembly, features a handle on the casing for easy gripping. During use, the covers are fixed to both sides of the linear motor. The air supply mechanism blows high-speed gas, impacting the interior of the linear motor and blowing dust outwards. Simultaneously, the exhaust mechanism absorbs and extracts the gas. The gas passes through a filter structure, where it is filtered to absorb dust and prevent dust splashing. The filter structure is also easily disassembled for cleaning. For different linear motor models, the sliding sleeve can be pulled, causing the two covers to move outwards, making it suitable for dust removal of linear motors of varying widths. The covers are spring-loaded to both sides of the linear motor for effective dust removal. Attached Figure Description
[0017] Figure 1 is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 is a schematic diagram of the structure of this utility model from a bottom view;
[0019] Figure 3 is a partial disassembly diagram of the present invention;
[0020] Figure 4 is a partial disassembly diagram of the present invention;
[0021] Figure 5 is a partial structural schematic diagram of the catheter assembly of this utility model.
[0022] In the diagram: 1. Dust collector unit; 11. Housing; 12. Handle; 13. Dust hood; 14. Air supply mechanism; 141. Air supply fan; 15. Exhaust mechanism; 151. Exhaust fan; 16. Filter structure; 17. Power supply; 18. Switch; 2. Duct assembly; 21. Corrugated hose; 22. Cover; 23. Cage; 24. Slide rod; 25. Slide sleeve; 26. Spring. Detailed Implementation
[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] Please refer to Figures 1 to 5. This utility model provides a technical solution: a dust removal device for a linear motor, including a dust removal unit 1 and a duct assembly 2;
[0026] The dust removal unit 1 includes a housing 11, the housing 11 has a handle 12, a dust removal hood 13 is detachably connected to one end of the housing 11, an air supply mechanism 14 is installed inside the housing 11, an exhaust mechanism 15 is installed inside the dust removal hood 13, and a filter structure 16 is also installed inside the housing 11, the filter structure 16 is located at the air inlet end of the exhaust mechanism 15.
[0027] The conduit assembly 2 includes two corrugated hoses 21 fixedly connected to the side wall of the housing 11. One end of the corrugated hose 21 is connected to a cap 22. The two caps 22 are used to close the two sides of the linear motor to form a fluid channel. The corrugated hose 21 is convenient for bending and extension.
[0028] As a preferred embodiment, based on the above method, the handle 12 is further provided with a power supply 17 and a control chip installed inside, and a switch 18 for issuing control commands to the control chip is installed outside the handle 12. The switch 18 can control the opening and closing of the power supply. A power cover is threaded to the tail end of the handle 12. A small hole is opened on the side wall of the handle 12 for heat dissipation of the power supply 17. The power supply 17 supplies power to various electrical components.
[0029] The air supply mechanism 14 includes a blower 141 installed inside the housing 11 and a dust supply cover. The dust supply cover is connected to the air inlet of the housing 11. The blower 141 blows out high-pressure gas to blow out dust. The exhaust mechanism 15 includes an exhaust fan 151 installed on the inner wall of the dust removal cover 13 and an exhaust dust cover. The exhaust dust cover is connected to the air outlet of the dust removal cover 13. The exhaust fan 151 extracts the filtered gas.
[0030] The air supply dust cover and the exhaust dust cover are made of grating, which facilitates the entry and exit of gas, while isolating large objects to prevent damage to the air supply fan 141.
[0031] As a preferred embodiment, based on the above method, a partition plate is further connected inside the housing 11. The partition plate separates the two corrugated hoses 21 into two independent spaces and divides the airflow into a motion trajectory.
[0032] As a preferred embodiment, based on the above method, the filter structure 16 is further a conical filter cup, the material of which is one of cellulose, felt and PP cotton, and one end of the conical filter cup has a threaded head that is threaded to the partition plate.
[0033] The filter structure 16 has a hollow interior and the side walls allow for airflow channels. The airflow passes through the filter structure from the outer wall at the inlet end and then flows out through the inner wall of the filter structure.
[0034] As a preferred embodiment, based on the above method, the conduit assembly 2 further includes a retainer 23 fixedly connected to the side wall of the housing 11. A slide rod 24 is fixedly installed on the side wall of the retainer 23. A slide sleeve 25 is slidably connected to the outer wall of the slide rod 24. The side wall of the slide sleeve 25 is fixedly connected to the cover 22 through a connecting rod.
[0035] Furthermore, a spring 26 is fixedly connected between the sliding sleeve 25 and the retainer 23. When the spring 26 is stretched, it provides elastic potential energy for the sliding sleeve 25 to slide toward the retainer 23. The spring 26 can pull the two covers 22 to slide on the slide rod 24 through the sliding sleeve 25, thereby facilitating the clamping on both sides of the linear motor to form a convection effect.
[0036] In summary, the dust removal device for this linear motor is used by holding the handle 12 and fixing the covers 22 to both sides of the linear motor. The blower 141 blows high-speed gas, impacting the inside of the linear motor and blowing the dust outward. At the same time, the exhaust fan 151 absorbs the gas and extracts it. The gas passes through the filter structure 16 and is filtered to absorb dust and prevent dust from splashing. The filter structure 16 is also easy to disassemble for cleaning. For different models of linear motors, the sliding sleeve 25 can be pulled to move the two covers 22 outward, which is suitable for dust removal of linear motors of different widths. The covers 22 are attached to both sides of the linear motor by springs 26 to achieve effective dust removal.
[0037] 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 dust removal device for a linear motor, characterized in that: The assembly includes a dust collector (1) and a duct assembly (2); the dust collector (1) includes a housing (11) with a handle (12), a dust cover (13) detachably connected to one end of the housing (11), an air supply mechanism (14) installed inside the housing (11), an exhaust mechanism (15) installed inside the dust cover (13), and a filter structure (16) installed inside the housing (11), the filter structure (16) being located at the air inlet end of the exhaust mechanism (15); the duct assembly (2) includes two corrugated hoses (21) fixedly connected to the side wall of the housing (11), one end of the corrugated hoses (21) being connected to a cap (22), the two caps (22) being used to close on both sides of the linear motor to form a fluid channel.
2. The dust removal device for a linear motor according to claim 1, characterized in that: The handle (12) is equipped with a power supply (17) and a control chip inside, and a switch (18) for issuing control commands to the control chip is installed on the outside of the handle (12).
3. The dust removal device for a linear motor according to claim 2, characterized in that: The end of the handle (12) is threaded with a power cover, and the side wall of the handle (12) has a small hole for heat dissipation of the power supply (17).
4. The dust removal device for a linear motor according to claim 1, characterized in that: The air supply mechanism (14) includes a blower (141) installed inside the housing (11) and an air supply dust cover connected to the air inlet of the housing (11).
5. A dust removal device for a linear motor according to claim 1, characterized in that: The exhaust mechanism (15) includes an exhaust fan (151) installed on the inner wall of the dust collector (13) and an exhaust dust cover, which is connected to the air outlet of the dust collector (13).
6. A dust removal device for a linear motor according to claim 1, characterized in that: The housing (11) is also connected to a partition plate, which separates the two corrugated hoses (21) into two independent spaces.
7. A dust removal device for a linear motor according to claim 6, characterized in that: The filter structure (16) is a conical filter cup, which is made of one of cellulose, felt and PP cotton. One end of the conical filter cup has a threaded head that is threaded to the separator plate.
8. A dust removal device for a linear motor according to claim 1, characterized in that: The conduit assembly (2) further includes a retainer (23) fixedly connected to the side wall of the housing (11). A slide rod (24) is fixedly installed on the side wall of the retainer (23). A sliding sleeve (25) is slidably connected to the outer wall of the slide rod (24). The side wall of the sliding sleeve (25) is fixedly connected to the cover (22) through a connecting rod. A spring (26) is fixedly connected between the sliding sleeve (25) and the retainer (23). When the spring (26) is stretched, it provides elastic potential energy for the sliding sleeve (25) to slide toward the retainer (23).