An epitaxial lead screw cleaning device for a component

Abstract

The present invention discloses a cleaning device for an externally extended lead screw on a component. The lead screw is connected to the component body, and the part of the lead screw to be cleaned extends and exposes on the component body. The cleaning device includes a descaling mechanism, which is mainly composed of an inner cylinder and an outer cylinder that are axially nested and can rotate relative to each other. At least one row of steel brushes is arranged along the axial length direction in the inner hole of the inner cylinder. The bottom end of the outer cylinder has a lead screw through hole one that enables the lead screw to be cleaned to be inserted into the inner hole of the inner cylinder. After the lead screw to be cleaned is inserted into the inner hole of the inner cylinder, it can form a position interaction with the steel brushes in the inner cylinder. The wiping and descaling process of the lead screw in the present invention is easy, efficient and fast. Moreover, the impurities wiped off are effectively collected in the outer cylinder and will not splash out, with good environmental protection performance, and is particularly suitable for working conditions with high environmental protection requirements, such as gas production stations (fields), etc.

Description

Technical Field

[0001] The present invention relates to a screw rod cleaning device, specifically a screw rod cleaning device that can extend and expose on a component and is not separated from the component body. Background Art

[0002] As a precision transmission part, the screw rod is widely used in precision industrial equipment, such as a flat gate valve. Taking the flat gate valve as an example, the technical problems of cleaning the screw rod in the state of not being separated from the component body, that is, the flat gate valve, will be described in detail below.

[0003] The flat gate valve is a common control valve in the natural gas transmission process system such as a gas production station (field). The opening / closing control of its internal flow passage is realized by the external handwheel driving the valve flap on the valve seat through the screw rod, that is, the screw rod is one of the key parts of the flat gate valve. According to the cooperation relationship between its screw rod, handwheel and valve flap, the flat gate valve is mainly divided into a non-rising stem type flat gate valve and a rising stem type flat gate valve. The screw rod of the non-rising stem type flat gate valve is always hidden in the valve body during the opening / closing state control operation and cannot extend and expose outside the valve body. Its screw rod is not easily contaminated and corroded by external media, but it is also difficult to clean and maintain the screw rod in the service state; the screw rod of the rising stem type flat gate valve can extend and expose from the outside of the valve body during the opening / closing state control operation. The extended and exposed screw rod is easily contaminated and corroded by external media, and it is relatively easy to clean and maintain it in the service state. Based on the characteristic that the rising stem type flat gate valve is easy to clean and maintain (to ensure its precision) in the service state, most gas production process systems select the rising stem type flat gate valve, which is beneficial to ensuring the stability and safety of natural gas transmission control.

[0004] During the service process of the rising stem type flat gate valve, its extended and exposed screw rod is easily affected by many comprehensive factors such as the climate environment, human operation, and equipment materials, resulting in adhesion of dirt, rust, etc. These phenomena will affect the deformation of the thread structure on the screw rod, and further affect the precision of its control over the valve flap. Therefore, in industrial production, it is necessary to regularly clean and maintain such extended and exposed screw rods that are not separated from the component body. This kind of cleaning and maintenance is carried out when the screw rod is connected to the component body and the component body is usually in the service state, which is different from the cleaning and maintenance of a single independent screw rod.

[0005] At present, for the cleaning and maintenance of such externally exposed lead screws that are not detached from the component body, there is a lack of dedicated cleaning and maintenance tooling, and traditional manual descaling and wiping methods using steel brushes, oil-impregnated objects, etc. are adopted. The existing cleaning and maintenance technical measures not only have technical problems such as large operation difficulty, long time consumption, low efficiency, and large amount of solid waste generation; moreover, they are realized in a relatively open environment, which will cause impurities and oil stains generated during the entire wiping process (including descaling and oil wiping) to splash everywhere around the operating environment, polluting the surrounding environment to varying degrees, being unfavorable to environmental protection, and also difficult to meet the environmental protection technical requirements in the maintenance operation specifications for equipment, components, etc. within the industry. Summary of the Invention

[0006] The technical object of the present invention is: aiming at the particularity of the externally exposed lead screw on the component that needs cleaning and maintenance and the deficiencies of the existing technology, to provide a cleaning device for the externally extended lead screw on the component that is easy to operate, efficient and has good environmental protection.

[0007] The technical object of the present invention is achieved through the following technical solutions: A cleaning device for the externally extended lead screw on a component, the lead screw is connected to the component body, and the part to be cleaned of the lead screw is externally exposed on the component body; the cleaning device includes a descaling mechanism, the descaling mechanism is mainly composed of an inner cylinder and an outer cylinder that are axially nested and can rotate relative to each other. At least one row of steel brushes is arranged along the axial length direction in the inner hole of the inner cylinder. The bottom end of the outer cylinder has a lead screw through hole one that can enable the lead screw to be cleaned to be inserted into the inner hole of the inner cylinder. After the lead screw to be cleaned is inserted into the inner hole of the inner cylinder, it can form a position interaction with the steel brushes in the inner cylinder. Further, the bottom end of the outer cylinder is detachably connected with a receiving bowl with an inner concave structure. The bottom of the inner cavity of the receiving bowl is a central convex arch structure. The lead screw through hole one is opened at the center of the receiving bowl, and the lead screw through hole one matches the lead screw to be cleaned. The top end of the inner cylinder is connected with an operating handle that can drive the inner cylinder to rotate circumferentially within the outer cylinder. The steel brushes in the inner cylinder are arranged in 2 to 4 circumferential rows. Further, the steel brushes in the inner cylinder are evenly arranged in 2 to 4 circumferential rows.

[0008] As one of the preferred solutions, the cleaning device further includes an oil wiping mechanism. The oil wiping mechanism is mainly composed of a cylinder body and an oil-impregnated body filled in the cylinder body and impregnated with grease. An inner hole smaller than the outer diameter of the lead screw to be cleaned is opened at the center of the oil-impregnated body. The bottom end of the cylinder body has a lead screw through hole two that can enable the lead screw to be cleaned to be inserted into the inner hole of the oil-impregnated body.

[0009] Furthermore, the bottom end of the cylinder is connected to a bottom cover with a concave structure by a detachable structure, the bottom of the inner cavity of the bottom cover is a central convex arch structure, the second screw hole is opened at the center of the bottom cover, and the second screw hole matches the screw to be cleaned.

[0010] Furthermore, the top of the cylinder has a screw rod through hole three that allows the screw rod to be cleaned to be inserted into the inner hole of the oil-immersed body, and the inner hole length of the oil-immersed body is greater than the axial length of the screw rod to be cleaned that can be inserted into the oil-immersed body. Still further, the top of the cylinder is connected to a top cover with a concave structure in a detachable structure, the bottom of the inner cavity of the top cover is a central convex arch structure, the screw rod through hole three is opened at the center of the top cover, and the screw rod through hole three matches the screw rod to be cleaned.

[0011] As one of the preferred solutions, the component is a rising stem flat gate valve.

[0012] The beneficial technical effects of the present invention are:

[0013] 1. The present invention aims at the particularity that the screw rod exposed outside and not separated from the component body (such as the screw rod on the rising stem flat gate valve) needs to be cleaned and maintained. The descaling mechanism is formed by an inner cylinder and an outer cylinder which are axially stacked together and can rotate relatively. The descaling mechanism sleeved on the external screw rod uses the outer cylinder as a base for positioning and receiving impurities, and the inner cylinder as a rotating base for the steel brush to wipe the screw rod. The whole wiping and descaling process is easy, efficient and fast, and the wiped impurities are effectively collected in the outer cylinder without splashing outside. It has good environmental protection and is particularly suitable for working conditions with high environmental protection requirements, such as gas production stations (fields).

[0014] 2. The bottom end of the outer cylinder of the descaling mechanism of the present invention receives the bowl structure, which can effectively collect the wiped impurities, and prevent the wiped impurities from leaking out from the screw rod perforation to the greatest extent, further enhancing environmental protection. In addition, it is convenient to remove the impurities collected inside the outer cylinder;

[0015] 3. The steel brush structure arranged in the inner cylinder of the descaling mechanism of the present invention can efficiently, quickly and reliably wipe and descale the screw rod;

[0016] 4. The oil wiping mechanism of the present invention cooperates with the descaling mechanism to perform grease wiping and maintenance treatment on the screw rod after descaling. During the rotation of the cylinder, the oil immersion body inside can effectively remove the stains on the screw rod, and at the same time, the grease is evenly squeezed onto the screw rod, playing a dual role of cleaning and maintenance;

[0017] 5. The bottom end cover structure of the oil wiping mechanism of the present invention can effectively prevent the extruded grease from leaking out through the screw rod perforation to the greatest extent, enabling the extruded grease to be effectively sucked back by the oil-impregnated body, further enhancing environmental protection, improving the utilization rate of the oil wiping grease, and having good economy;

[0018] 6. The lengthened structure of the oil wiping mechanism of the present invention is conducive to the storage of the oil-impregnated body. Furthermore, the oil wiping mechanism can achieve oil wiping and cleaning maintenance of the screw rod at both the upper and lower ends in sequence, so as to achieve the technical effects of improving operation efficiency and saving materials, and further enhancing economy; in addition, the top end cover structure of the cylinder has the same technical effects as the bottom end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of a descaling mechanism of the present invention.

[0020] Figure 2 is a schematic structural view of an oil wiping mechanism of the present invention.

[0021] The meanings of the codes in the figure: 1 - descaling mechanism; 11 - inner cylinder; 12 - outer cylinder; 13 - steel brush; 14 - receiving bowl; 15 - screw rod perforation one; 16 - operating handle; 2 - oil wiping mechanism; 21 - cylinder body; 22 - oil-impregnated body; 23 - top end cover; 24 - bottom end cover; 25 - screw rod perforation two; 26 - screw rod perforation three. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present invention relates to a screw rod cleaning device, specifically a screw rod cleaning device that can be externally exposed and is not separated from the component body on a component (especially an in-service component - for example, a rising stem slab gate valve in a natural gas transmission process system). The main technical content of the present invention will be described in detail below with multiple embodiments. Among them, Embodiment 1 combines the specification drawings - that is Figure 1 and Figure 2 to clearly and detailedly explain the technical solution content of the present invention; Embodiment 2 combines the specification drawings - that is Figure 1 to clearly and detailedly explain the technical solution content of the present invention; Although the other embodiments are not separately drawn, their main structures can still refer to the drawings of Embodiment 1.

[0023] It should be particularly noted here that the drawings of the present invention are schematic. In order to clarify the technical purpose of the present invention, unnecessary details have been simplified to avoid obscuring the technical solution contributed by the present invention to the prior art.

[0024] Embodiment 1

[0025] Referring to Figure 1 and Figure 2 as shown, the present invention includes a descaling mechanism 1 and an oil wiping mechanism 2 used in combination.

[0026] Among them, the descaling mechanism 1 is mainly composed of an inner cylinder 11 and an outer cylinder 12. The inner diameter of the inner cylinder 11 is larger than the outer diameter of the lead screw to be cleaned, the outer diameter of the inner cylinder 11 is smaller than the inner diameter of the outer cylinder 12, and the axial length of the inner cylinder 11 is usually equal to or slightly larger than the part to be cleaned of the lead screw to be cleaned; of course, the axial length of the inner cylinder 11 can be smaller than the part to be cleaned of the lead screw to be cleaned, which requires that the inner hole of the inner cylinder 11 must be a through-hole structure, and during the cleaning process, the descaling mechanism 1 needs to have an axial relative displacement on the lead screw to be cleaned. The outer circumference of the inner cylinder 11 is axially nested and assembled in the inner hole of the outer cylinder 12 through a bearing (such as a needle roller bearing, etc.). Only circumferential relative rotation is performed between the inner cylinder 11 and the outer cylinder 12, and no axial relative displacement is performed.

[0027] In the above nested assembly structure, usually the top end of the inner cylinder 11 axially extends from the top end of the outer cylinder 12. An operating handle 16 capable of driving the inner cylinder 11 to generate circumferential relative rotation in the outer cylinder 12 is connected to the eccentric position at the top end of the inner cylinder 11. The bottom end of the outer cylinder 12 slightly extends beyond the bottom end of the inner cylinder 11. A receiving bowl 14 with an inner concave structure is detachably connected to the bottom end of the outer cylinder 12 by a thread. The bottom of the inner cavity of the receiving bowl 14 is a central convex arch structure (that is, the outer edge is an annular inner concave space); a lead screw through-hole 15 is axially opened at the center of the receiving bowl 14, and the lead screw through-hole 15 is basically axially corresponding to the inner hole of the inner cylinder 11, so as to form a lead screw through-hole 15 at the bottom end of the outer cylinder 12 that can insert the lead screw to be cleaned into the inner hole of the inner cylinder 11; the diameter of the lead screw through-hole 15 is slightly larger than the outer diameter of the lead screw to be cleaned, and it is usually matched with the component body joint at the root of the lead screw to be cleaned - taking the open-stem flat gate valve as an example, it should be matched with the copper sleeve protecting wire of the lead screw.

[0028] Two rows (of course, it can also be three rows or four rows) of steel brushes 13 are arranged along the axial length direction in the inner hole of the above-mentioned inner cylinder 11. These rows of steel brushes 13 are evenly arranged circumferentially in the inner cylinder 11, and the length of each row of steel brushes 13 is slightly larger than the axial length of the part to be cleaned of the lead screw to be cleaned. The diameter of the circle formed by the inner ends (the outer ends are fixedly connected to the inner cylinder 11) of these steel brushes 13 in the inner cylinder 11 is slightly smaller than the outer diameter of the lead screw to be cleaned. In this way, when the lead screw to be cleaned is inserted into the inner hole of the inner cylinder 11 through the lead screw through-hole 15, the rotating inner cylinder 11 can make these steel brushes 13 interact with the outer wall of the lead screw to be cleaned, so that the rotating inner cylinder 11 wipes off the dirt on the lead screw to be cleaned through the steel brushes 13.

[0029] When the above descaling mechanism 1 cleans the lead screw to be cleaned, the outer cylinder 12 is usually located and fixed on the component body at the root of the lead screw to be cleaned - taking the open-stem flat gate valve as an example, it should be located and fixed on the handwheel.

[0030] The oil wiping mechanism 2 mainly consists of a cylinder body 21 and an oil-impregnated body 22 filled in the cylinder body 21 and impregnated with grease (such as diesel). The inner diameter of the cylinder body 21 is larger than the outer diameter of the screw rod to be cleaned, and the axial length of the cylinder body 21 is also larger than the axial length of the part to be cleaned of the screw rod to be cleaned; the top end of the cylinder body 21 is connected with a top cover 23 by a detachable threaded structure, and the bottom end is connected with a bottom cover 24 by a detachable threaded structure. The oil-impregnated body 22 is usually formed by selecting a wear-resistant and water-absorbing material - for example, a wear-resistant and water-absorbing sponge. The oil-impregnated body 22 axially fills the entire internal space of the cylinder body 21, and an inner hole smaller than the outer diameter of the screw rod to be cleaned is opened at the center of the oil-impregnated body 22, that is, the length of the inner hole of the oil-impregnated body 22 is larger than the axial length that the screw rod to be cleaned can extend into the oil-impregnated body 22.

[0031] The bottom cover 24 connected to the bottom end of the above-mentioned cylinder body 21 has a cavity with an inner concave structure inside, and the bottom of the inner cavity of the bottom cover 24 is a central convex arch structure (that is, the outer edge is an annular inner concave space). A screw rod through hole two 25 is axially opened at the center of the bottom cover 24, and the screw rod through hole two 25 basically axially corresponds to the inner hole of the oil-impregnated body 22, so as to form a screw rod through hole two 25 at the bottom end of the cylinder body 21 that can make the screw rod to be cleaned insert into the inner hole of the oil-impregnated body 22; the aperture of the screw rod through hole two 25 is slightly larger than the outer diameter of the screw rod to be cleaned, and it is usually matched with the component body joint at the root of the screw rod to be cleaned - taking a rising stem slab gate valve as an example, it should be matched with the screw rod copper sleeve protecting wire.

[0032] The top cover 23 connected to the top end of the above-mentioned cylinder body 21 has a cavity with an inner concave structure inside, and the bottom of the inner cavity of the top cover 23 is a central convex arch structure (that is, the outer edge is an annular inner concave space). A screw rod through hole three 26 is axially opened at the center of the top cover 23, and the screw rod through hole three 26 basically axially corresponds to the inner hole of the oil-impregnated body 22, so as to form a screw rod through hole three 26 at the top end of the cylinder body 21 that can make the screw rod to be cleaned insert into the inner hole of the oil-impregnated body 22; the aperture of the screw rod through hole three 26 is slightly larger than the outer diameter of the screw rod to be cleaned, and it is usually matched with the component body joint at the root of the screw rod to be cleaned - taking a rising stem slab gate valve as an example, it should be matched with the screw rod copper sleeve protecting wire.

[0033] When the above-mentioned oil wiping mechanism 2 performs cleaning and maintenance on the screw rod to be cleaned, the oil-impregnated body 22 extruded by the screw rod to be cleaned is rotated by rotating the cylinder body 21 to wipe the screw rod circumferentially.

[0034] The above-mentioned oil wiping mechanism 2 is of an extended structure. When it performs cleaning and maintenance on the screw rod to be cleaned, both the top and bottom ends can be reversed and used. The technical advantages of such a design are: on the one hand, the part of the oil-impregnated body 22 that has not wiped the screw rod to be cleaned can be used as reserve materials; on the other hand, it is convenient to be used for cleaning and maintenance of screw rods of other lengths, enhancing its versatility.

[0035] Embodiment 2

[0036] SeeFigure 1 As shown in the figure, the present invention includes a descaling mechanism 1. The descaling mechanism 1 is mainly composed of an inner cylinder 11 and an outer cylinder 12.

[0037] Specifically, the inner diameter of the inner cylinder 11 is larger than the outer diameter of the lead screw to be cleaned, the outer diameter of the inner cylinder 11 is smaller than the inner diameter of the outer cylinder 12, and the axial length of the inner cylinder 11 is usually equal to or slightly larger than the part of the lead screw to be cleaned; of course, the axial length of the inner cylinder 11 can be smaller than the part of the lead screw to be cleaned, in which case the inner hole of the inner cylinder 11 must be a through-hole structure, and during the cleaning process, the descaling mechanism needs to make an axial relative displacement on the lead screw to be cleaned. The outer periphery of the inner cylinder 11 is axially sleeved and assembled in the inner hole of the outer cylinder 12 through a bearing (such as a needle roller bearing, etc.), and only a circumferential relative rotation is made between the inner cylinder 11 and the outer cylinder 12, without making an axial relative displacement.

[0038] In the above-mentioned sleeved assembly structure, usually the top end of the inner cylinder 11 axially extends from the top end of the outer cylinder 12. An operating handle 16 capable of driving the inner cylinder 11 to generate a circumferential relative rotation in the outer cylinder 12 is connected to an eccentric position at the top end of the inner cylinder 11. The bottom end of the outer cylinder 12 slightly extends beyond the bottom end of the inner cylinder 11, and a receiving bowl 14 with an inner concave structure is detachably connected to the bottom end of the outer cylinder 12 by a thread. The bottom of the inner cavity of the receiving bowl 14 is a central convex arch structure (i.e., the outer edge is an annular inner concave space); a lead screw through-hole 15 is axially opened at the center of the receiving bowl 14, and the lead screw through-hole 15 is basically axially corresponding to the inner hole of the inner cylinder 11, so as to form a lead screw through-hole 15 at the bottom end of the outer cylinder 12 that can insert the lead screw to be cleaned into the inner hole of the inner cylinder 11; the diameter of the lead screw through-hole 15 is slightly larger than the outer diameter of the lead screw to be cleaned, and it is usually matched with the component body joint at the root of the lead screw to be cleaned - taking a rising-stem flat gate valve as an example, it should be matched with the copper sleeve protecting wire of the lead screw.

[0039] Two rows (of course, it can also be three rows or four rows) of steel brushes 13 are arranged along the axial length direction in the inner hole of the above-mentioned inner cylinder 11. These rows of steel brushes 13 are evenly arranged circumferentially in the inner cylinder 11, and the length of each row of steel brushes 13 is slightly larger than the axial length of the part of the lead screw to be cleaned. The diameter of the circle formed by the inner ends (the outer ends are fixedly connected to the inner cylinder 11) of these steel brushes 13 in the inner cylinder 11 is slightly smaller than the outer diameter of the lead screw to be cleaned. In this way, when the lead screw to be cleaned is inserted into the inner hole of the inner cylinder 11 through the lead screw through-hole 15, the rotating inner cylinder 11 can make these steel brushes 13 interact with the outer wall of the lead screw to be cleaned, so that the rotating inner cylinder 11 wipes off the dirt on the lead screw to be cleaned through the steel brushes 13.

[0040] When the above-mentioned descaling mechanism 1 is cleaning the lead screw to be cleaned, the outer cylinder 12 is usually located and fixed on the component body at the root of the lead screw to be cleaned - taking a rising-stem flat gate valve as an example, it should be located and fixed on the handwheel.

[0041] Example 3

[0042] Other contents of this embodiment are the same as those of Embodiment 1, except that: the bottom end cover / top end cover on the cylinder body of the oil wiping mechanism and the cylinder body are designed as a circumferentially relatively rotatable structure, that is, when cleaning and maintaining the lead screw to be cleaned, the cylinder body drives the oil-soaked body to rotate circumferentially, while the bottom end cover / top end cover can follow the circumferential rotation or not rotate. This is beneficial to make the lead screw perforation on the bottom end cover / top end cover only allow the lead screw to be cleaned to pass through, and there is no need to reserve a space for the bottom end cover / top end cover and the lead screw to freely rotate.

[0043] Example 4

[0044] Other contents of this embodiment are the same as those of Embodiment 1, except that: the axial length of the oil wiping mechanism matches the axial length of the part to be cleaned of the lead screw to be cleaned. In this way, it is only necessary to consider opening a lead screw perforation on one end cover of the cylinder body, and there is no need to open a hole at the other end or directly set the cylinder body as a blind hole structure.

[0045] The above embodiments are only used to illustrate the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: they can still modify the above embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the present invention.

Claims

1. A cleaning device for an externally extended lead screw on a component, the lead screw being connected to a component body, and the part of the lead screw to be cleaned extending and exposing outside the component body; Characterized in that: The cleaning device includes a descaling mechanism (1) and an oil wiping mechanism (2); The descaling mechanism (1) is mainly composed of an inner cylinder (11) and an outer cylinder (12) that are axially nested and can rotate relative to each other. At least one row of steel brushes (13) is arranged along the axial length direction in the inner hole of the inner cylinder (11). The bottom end of the outer cylinder (12) has a lead screw through hole one (15) that enables the lead screw to be cleaned to be inserted into the inner hole of the inner cylinder (11). After the lead screw to be cleaned is inserted into the inner hole of the inner cylinder (11), it can form a position interaction with the steel brush (13) in the inner cylinder (11). The top end of the inner cylinder (11) is connected with an operating handle (16) that can drive the inner cylinder (11) to rotate circumferentially within the outer cylinder (12); The oil wiping mechanism (2) is mainly composed of a cylinder body (21) and an oil-impregnated body (22) filled in the cylinder body (21) and impregnated with grease. An inner hole smaller than the outer diameter of the lead screw to be cleaned is opened in the center of the oil-impregnated body (22). The bottom end of the cylinder body (21) has a lead screw through hole two (25) that enables the lead screw to be cleaned to be inserted into the inner hole of the oil-impregnated body (22); The bottom end of the cylinder body (21) is connected with a bottom end cover (24) with an inner concave structure in a detachable structure. The bottom of the inner cavity of the bottom end cover (24) is a central convex arch structure. The lead screw through hole two (25) is opened at the center of the bottom end cover (24), and the lead screw through hole two (25) matches the lead screw to be cleaned; The top end of the cylinder body (21) has a lead screw through hole three (26) that enables the lead screw to be cleaned to be inserted into the inner hole of the oil-impregnated body (22). The length of the inner hole of the oil-impregnated body (22) is greater than the axial length that the lead screw to be cleaned can extend into the oil-impregnated body (22); The top end of the cylinder body (21) is connected with a top end cover (23) with an inner concave structure in a detachable structure. The bottom of the inner cavity of the top end cover (23) is a central convex arch structure. The lead screw through hole three (26) is opened at the center of the top end cover (23), and the lead screw through hole three (26) matches the lead screw to be cleaned.

2. The epitaxial lead screw cleaning device on the component according to claim 1, characterized in that: The bottom end of the outer cylinder (12) is connected with a receiving bowl (14) with an inner concave structure in a detachable structure. The bottom of the inner cavity of the receiving bowl (14) is a central convex arch structure. The lead screw through hole one (15) is opened at the center of the receiving bowl (14), and the lead screw through hole one (15) matches the lead screw to be cleaned.

3. The cleaning device for the epitaxial lead screw on the component according to claim 1, wherein: The steel brushes (13) in the inner cylinder (11) are arranged in 2 to 4 rows in the circumferential direction.

4. The cleaning device for the epitaxial lead screw on the component according to claim 1, characterized in that: The component is a rising-stem flat gate valve.

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