Full-density lead screw module with dustproof structure

Abstract

The utility model provides a full-dense lead screw module with a dustproof structure, which comprises a lead screw module body and a gas inlet assembly, the front end of the lead screw module body is provided with the gas inlet assembly for filtering gas through a gas switch valve, the left lower side of the front end of the lead screw module body is provided with a connecting hole, and the connecting hole is communicated with the gas inlet assembly. The lower left side of the front end of the screw rod module body is in threaded connection with a gas switch valve through a connecting hole, and compared with the prior art, the screw rod module has the following beneficial effects that the gas inlet assembly is arranged, compressed gas provided by external gas supply equipment is continuously filtered through the gas inlet assembly, and the gas switch valve is in threaded connection with the lower left side of the front end of the screw rod module body; according to the dust-proof screw rod module, the air is continuously input into the inner cavity of the screw rod module body, when the inner cavity of the screw rod module body is filled with the air and the air pressure is larger than the external atmospheric pressure, external dust is difficult to enter the screw rod module body, and therefore the screw rod module body has the good dust-proof performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw rod modules, and particularly relates to a fully enclosed screw rod module with a dust-proof structure. Background Technique

[0002] As a motion transmission mechanism, the operation accuracy and stability of the screw rod module are affected by environmental factors. Especially the intrusion of dust and particulate matter may cause an increase in friction between the screw rod and the nut, resulting in abnormal wear during operation, further affecting the transmission accuracy and motion stability, and generating noise and vibration. The emergence of this problem mainly stems from the failure to effectively consider the impact of the working environment on the equipment during design, usually aiming at simplifying the structure, resulting in inadequate dust-proof design. Many traditional screw rod modules lack effective sealing measures during operation, allowing dust and particles to easily enter the device interior, further exacerbating the damage to the transmission components.

[0003] To address this problem, common methods include adding an external dust-proof cover to the screw rod module or using a sealing strip to isolate the intrusion of dust. However, these conventional countermeasures also have certain drawbacks. First, the external dust-proof cover may increase the overall volume of the equipment, causing limitations in the installation space and affecting the integration of the equipment. Second, although using a sealing strip can prevent dust from entering, after long-term operation, the sealing effect may weaken, losing the protection function, and even increasing the replacement frequency. In addition, external protection measures may also lead to poor air circulation, resulting in increased temperature and poor heat dissipation, further affecting the performance and stability of the equipment. Therefore, we hope to design a screw rod module with a new structure to solve this problem. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a fully enclosed screw rod module with a dust-proof structure to solve the problems raised in the above background technique.

[0005] The utility model is realized through the following technical solutions: A fully enclosed screw rod module with a dust-proof structure, comprising: a screw rod module body and an air intake assembly. The front end of the screw rod module body is installed with an air intake assembly for filtering gas through a gas switch valve.

[0006] A connection hole is provided at the lower left side of the front end of the screw rod module body. The lower left side of the front end of the screw rod module body is threadedly connected with a gas switch valve through the connection hole. An inner cavity is arranged inside the screw rod module body.

[0007] The air intake assembly includes a housing, a filter element, a locking member, and a cover. The filter element is movably installed inside the housing, and the cover is installed on the upper end of the housing through the locking member.

[0008] As a preferred embodiment, the housing includes a shell and a connecting pipe. A through hole is provided in the middle of the bottom of the shell. A first snap ring is provided at the bottom of the shell. A connecting pipe is provided on one side of the shell close to the front end of the lead screw module body, and the connecting pipe is connected to an external air supply device.

[0009] As a preferred embodiment, a second card slot is formed by downward depression on the upper surface of the filter element, and a first card slot is formed by upward depression on the lower surface of the filter element. The structure, size and distribution position of the first card slot are all matched with the structure, size and distribution position of the first snap ring. In actual use, the inside of the filter element is communicated with the air pipe, and the inside of the filter element is not directly communicated with the outside. Both ends of the filter element are hermetically abutted against the bottom of the housing and the lower surface of the cover plate respectively.

[0010] As a preferred embodiment, the locking member includes a wing nut, a screw rod and an elastic frame. The diameter of the screw rod is matched with the inner diameter of the through hole, and the lower end of the screw rod is inserted into the bottom of the housing through the through hole.

[0011] As a preferred embodiment, the upper end of the screw rod is welded to the middle of the lower end of the elastic frame. A wing nut is threadedly connected to the lower end of the screw rod. The elastic frame is of an inverted trapezoidal structure and the upper end of the elastic frame is open. The elastic frame is placed inside the filter element. The sum of the heights of the screw rod and the elastic frame is greater than the depth of the housing. The setting of the locking member can quickly disassemble and assemble the housing and the filter element, and thus facilitate the subsequent cleaning and replacement of the filter element.

[0012] As a preferred embodiment, the cover includes a cover plate and an air pipe. An air pipe is provided in the middle of the upper side of the cover plate. The lower end of the air pipe penetrates downward through the cover plate and is communicated with the inside of the housing;

[0013] A positioning groove is provided at the edge of the lower surface of the cover plate. The size and structure of the positioning groove are matched with the size and structure of the upper end of the housing. The lower surface of the cover plate abuts against the upper end of the elastic frame.

[0014] As a preferred embodiment, a second snap ring is provided on the inner side of the lower surface of the cover plate. The structure, size and distribution position of the second snap ring are all matched with the structure, size and distribution position of the second card slot.

[0015] After adopting the above technical solution, the beneficial effect of the present invention is that: by providing an air intake assembly, the compressed gas provided by an external air supply device is continuously filtered through the air intake assembly and continuously input into the inner cavity of the lead screw module body. When the inner cavity of the lead screw module body is filled with gas and the air pressure is greater than the external atmospheric pressure, it is difficult for external dust to enter the inside of the lead screw module body, so that the lead screw module body has better dust-proof performance;

[0016] With the settings of the housing, locking member, and cover, it is only necessary to remove the housing to connect the filter element, screw rod, and elastic frame together for cleaning, which can ensure that the gas entering the inside of the lead screw module body is always in a relatively clean state, avoiding impurities from entering and affecting the precision components inside the lead screw module body due to accumulated dust and reducing the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 FIG. 9 is a schematic diagram of the overall structure of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0019] Figure 2 FIG. 13 is a schematic diagram of the inner cavity structure of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0020] Figure 3 FIG. 17 is a schematic diagram of the air intake component structure of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0021] Figure 4 FIG. 21 is a schematic diagram of the split structure of the air intake component of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0022] Figure 5 FIG. 25 is a schematic diagram of the locking member of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0023] Figure 6 FIG. 29 is a schematic diagram of the filter element structure of a fully enclosed lead screw module with a dust-proof structure according to the present invention.

[0024] In the figure, 100 - lead screw module body, 110 - connection hole, 120 - inner cavity;

[0025] 200 - air intake component, 210 - housing, 211 - shell, 212 - connecting pipe, 220 - filter element, 230 - locking member, 231 - butterfly nut, 232 - screw rod, 233 - elastic frame, 240 - cover, 241 - cover plate, 242 - air pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0027] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a fully enclosed lead screw module with a dust-proof structure, including: a lead screw module body 100 and an air intake assembly 200. The front end of the lead screw module body 100 is installed with an air intake assembly 200 for filtering gas through a gas switch valve;

[0028] A connection hole 110 is provided on the lower left side of the front end of the lead screw module body 100. The lower left side of the front end of the lead screw module body 100 is threadedly connected with a gas switch valve through the connection hole 110. An inner cavity 120 is provided inside the lead screw module body 100;

[0029] The air intake assembly 200 includes a housing 210, a filter element 220, a locking member 230, and a cover 240. The filter element 220 is movably installed inside the housing 210, and the cover 240 is installed on the upper end of the housing 210 through the locking member 230.

[0030] As the first embodiment of the present utility model, in actual use, the compressed gas provided by an external air supply device is continuously filtered through the air intake assembly 200 and continuously input into the inner cavity 120 of the lead screw module body 100. When the inner cavity 120 of the lead screw module body 100 is filled with gas and the pressure is greater than the external atmospheric pressure (a pressure gauge can be installed on the lead screw module body 100 as needed, and the installation position can be selected according to requirements), external dust is difficult to enter the inside of the lead screw module body 100, thereby enabling the lead screw module body 100 to have good dust-proof performance.

[0031] Please refer to Figures 3 to 6 , the housing 210 includes a shell 211 and a connecting pipe 212. A through hole is provided in the middle of the bottom of the shell 211. A first snap ring is provided at the bottom of the shell 211. A connecting pipe 212 is provided on one side of the shell 211 close to the front end of the lead screw module body 100. The connecting pipe 212 is connected to an external air supply device.

[0032] The upper surface of the filter element 220 is recessed downward to form a second card slot, and the lower surface of the filter element 220 is recessed upward to form a first card slot. The structure, size, and distribution position of the first card slot are all matched with the structure, size, and distribution position of the first snap ring. In actual use, the inside of the filter element 220 is communicated with the air pipe 242, and the inside of the filter element 220 is not directly communicated with the outside. Both ends of the filter element 220 are hermetically abutted against the bottom of the cover 210 and the lower surface of the cover plate 241 respectively.

[0033] The locking member 230 includes a wing nut 231, a screw rod 232, and an elastic frame 233. The diameter of the screw rod 232 is matched with the inner diameter of the through hole, and the lower end of the screw rod 232 is inserted into the bottom of the cover 210 through the through hole.

[0034] The upper end of the screw rod 232 is welded to the middle of the lower end of the elastic frame 233. A wing nut 231 is threadedly connected to the lower end of the screw rod 232. The elastic frame 233 is an inverted trapezoidal structure and the upper end of the elastic frame 233 is open. The elastic frame 233 is placed inside the filter element 220. The sum of the heights of the screw rod 232 and the elastic frame 233 is greater than the depth of the cover 210. The setting of the locking member 230 can quickly disassemble and assemble the cover 210 and the filter element 220, and then facilitate the subsequent cleaning and replacement of the filter element 220.

[0035] The cover 240 includes a cover plate 241 and an air pipe 242. The air pipe 242 is arranged in the middle of the upper side of the cover plate 241. The lower end of the air pipe 242 penetrates downward through the cover plate 241 and is communicated with the inside of the cover 210.

[0036] A positioning groove is arranged at the edge of the lower surface of the cover plate 241. The size and structure of the positioning groove are matched with the size and structure of the upper end of the cover 210. The lower surface of the cover plate 241 abuts against the upper end of the elastic frame 233.

[0037] A second snap ring is arranged on the inner side of the lower surface of the cover plate 241. The structure, size, and distribution position of the second snap ring are all matched with the structure, size, and distribution position of the second card slot.

[0038] As the second embodiment of the present utility model, based on the above first embodiment, in actual use, if it is necessary to disassemble and replace the filter element 220, the user only needs to loosen the wing nut 231 of the locking member 230 located at the bottom of the cover 210, and then the cover 210 is released from fixation. Subsequently, only need to remove the cover 210 to remove the filter element 220 together with the screw rod 232 and the elastic frame 233 for cleaning. When installing, install in the reverse steps. This reduces the difficulty of cleaning the filter element 220, and at the same time can ensure that the gas entering the inside of the lead screw module body 100 is always in a relatively clean state, avoiding impurities from entering and affecting the precision components inside the lead screw module body 100 due to accumulated dust and reducing the processing accuracy.

[0039] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A full-dense screw rod module with a dustproof structure, comprising: A screw module body (100) and an air intake assembly (200), characterized in that an air intake assembly (200) for filtering gas is installed at the front end of the screw module body (100) via a gas switch valve; A connection hole (110) is provided at the lower left side of the front end of the screw module body (100); a gas switch valve is threadedly connected to the lower left side of the front end of the screw module body (100) through the connection hole (110); and an inner cavity (120) is provided inside the screw module body (100); The air intake assembly (200) comprises a housing (210), a filter element (220), a locking piece (230) and a cover (240); the filter element (220) is movably mounted inside the housing (210), and the cover (240) is mounted on the upper end of the housing (210) via the locking piece (230).

2. A full-dense screw rod module with a dustproof structure as claimed in claim 1, characterized in that: The cover shell (210) comprises a shell (211) and a connecting pipe (212); a through hole is provided in the middle of the bottom of the shell (211); a clamping ring is provided at the bottom of the shell (211); a connecting pipe (212) is provided on one side of the shell (211) close to the front end of the screw module body (100); and the connecting pipe (212) is connected to an external air supply device.

3. A full-dense screw rod module with a dustproof structure as claimed in claim 2, characterized in that: The upper surface of the filter element (220) is recessed downward to form a second clamping groove, and the lower surface of the filter element (220) is recessed upward to form a first clamping groove, and the structure, size and distribution position of the first clamping groove all match the structure, size and distribution position of the first clamping ring.

4. A full-dense screw rod module with a dustproof structure as claimed in claim 2, characterized in that: The locking member (230) comprises a butterfly nut (231), a screw rod (232) and an elastic frame (233); the diameter of the screw rod (232) matches the inner diameter of the through hole; the lower end of the screw rod (232) is inserted into the bottom of the housing (210) through the through hole.

5. A full-dense screw rod module with a dustproof structure as claimed in claim 4, characterized in that: The upper end of the screw rod (232) and the lower end of the elastic frame (233) are welded in the middle, the lower end of the screw rod (232) is threadedly connected with a butterfly nut (231), the elastic frame (233) is an inverted trapezoidal structure and the upper end of the elastic frame (233) is open, the elastic frame (233) is placed inside the filter element (220), and the sum of the heights of the screw rod (232) and the elastic frame (233) is greater than the depth of the housing (210).

6. A full-dense screw rod module with a dustproof structure as claimed in claim 4, characterized in that: The sealing cover (240) comprises a cover plate (241) and an air pipe (242); the air pipe (242) is arranged in the middle of the upper side of the cover plate (241); the lower end of the air pipe (242) penetrates downward through the cover plate (241) and communicates with the interior of the housing (210); A positioning groove is provided at the edge of the lower surface of the cover plate (241), the size and structure of the positioning groove match the size and structure of the upper end of the cover shell (210), and the lower surface of the cover plate (241) abuts against the upper end of the elastic frame (233).

7. A full-dense screw rod module with a dustproof structure as claimed in claim 6, characterized in that: A second snap ring is provided on the inner side of the lower surface of the cover plate (241); the structure, size and distribution position of the second snap ring are matched with the structure, size and distribution position of the second snap groove.

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