Lead screw surface dedusting and cleaning device

Abstract

The invention relates to the technical field of dust removal and cleaning, and discloses a lead screw surface dust removal and cleaning device which comprises two threaded support mechanisms and an elastic telescopic cleaning mechanism. A longitudinal hollow shell which is fixedly mounted in the component fixing opening and is hollow inside, a hollow pipe body which is placed inside the longitudinal hollow shell and can move along the axial direction of the longitudinal hollow shell, and a screw rod body which can longitudinally move along with the hollow pipe body and can abut against the surface of the screw rod body are arranged inside the screw rod body; the annular sponge brush is used for cleaning the screw rod; and the spiral spring is used for generating downward elastic pressure on the hollow pipe body. According to the lead screw surface dust removal and cleaning device, the elastic pressure type abutting effect on the surface of a lead screw is achieved through elasticity of a spiral spring, so that a sponge brush can act on the surface of the lead screw with certain force, the cleaning effect on the lead screw is improved, in addition, the device can adjust the working pressure according to the actual situation, and the working efficiency is improved. Therefore, the adjusting range of the cleaning pressure by the equipment is widened.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal and cleaning, and in particular to a device for dust removal and cleaning the surface of a lead screw. Background Art

[0002] Ball screws are ideal products for converting rotary motion into linear motion, or converting linear motion into rotary motion. Ball screws are the most commonly used transmission elements in tool machinery and precision machinery. Their main function is to convert rotary motion into linear motion, or to convert torque into axial repetitive force. They also have the characteristics of high precision, reversibility and high efficiency. The air environment in factories usually contains a lot of dust and suspended matter, which will be adsorbed on the screw surface of the ball screw when the screw is working. These dust and suspended matter will wear the steel balls and other structures inside the nut when the screw is working, causing the stability of the ball screw to deteriorate during operation, which is prone to errors and even production safety accidents. Therefore, it is usually necessary to manually clean the screw surface of the ball screw regularly, which is troublesome and inefficient.

[0003] To this end, a Chinese patent with publication number "CN210497343U" announced "a screw dust removal and cleaning device", whose main structure includes a nut and a screw, the nut is rollingly connected to the screw, a first support column is fixedly installed on the top of the nut, an extension plate extending to the rear of the nut is fixedly installed on the top of the first support column, and a second support column is fixedly installed on the left and right halves of the bottom of the extension plate respectively, a circular plate with a diameter larger than the diameter of the nut is fixedly installed on the bottom of the second support column, and a brush array on the inner side of the circular plate is fixedly installed with bristles in contact with the surface of the screw. The screw dust removal and cleaning device can automatically clean the dust and suspended matter attached to the surface of the screw when the ball screw is working, to prevent damage to the steel balls and other structures inside the nut, greatly reducing manual labor and improving production efficiency.

[0004] However, when the lead screw dust removal and cleaning device is used to clean the lead screw, the cleaning force between the bristles and the lead screw, that is, the working pressure between the two, cannot be adjusted, resulting in that some debris with relatively strong adhesion cannot be completely removed from the lead screw surface, thus resulting in a narrow cleaning force. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a dust removal and cleaning device for the surface of a screw, which utilizes the elasticity of a coil spring to achieve an elastic pressure-type resistance effect on the surface of the screw, so that the sponge brush can act on the surface of the screw with a certain force, thereby improving the cleaning effect of the screw. In addition, the device can adjust the working pressure according to actual conditions, thereby increasing the adjustment range of the equipment for the cleaning pressure, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a screw surface dust removal and cleaning device, comprising a bottom supporting base plate, two bottom mounting base plates symmetrically fixedly mounted on the upper surface of the bottom supporting base plate, a top mounting base plate located directly above the bottom mounting base plate, and a component fixing port arranged at the center of the top mounting base plate, and also comprising two threaded bracket mechanisms, wherein a sleeve bracket is arranged inside the mechanism, which is fixedly mounted on the upper surface of the bottom supporting base plate and can cooperate with the screw to be cleaned so that the screw can move laterally when rotating; and an elastic telescopic cleaning mechanism, wherein a longitudinal hollow shell is fixedly mounted in the component fixing port and is hollow inside, a hollow tube body is placed inside the longitudinal hollow shell and can move axially along the longitudinal hollow shell, an annular sponge brush that can move longitudinally with the hollow tube body and can abut on the surface of the screw body to clean the screw, and a spiral spring that produces downward elastic pressure on the hollow tube body.

[0007] Preferably, the threaded bracket mechanism includes a sleeve bracket, the bottom of the sleeve bracket is provided with a No. 1 fixing plate fixedly installed on the upper surface of the bottom supporting base plate, the center of the sleeve bracket is provided with an internal threaded hole, and the sleeve bracket is provided with an internal thread structure on the circumferential inner wall of the internal threaded hole.

[0008] Preferably, the two sleeve brackets are arranged coplanarly and symmetrically with respect to the axis center lines of the two bottom mounting substrates.

[0009] Preferably, the internal thread structure matches the external thread structure on the screw rod body.

[0010] Preferably, the elastic telescopic cleaning mechanism comprises a longitudinal hollow shell, the outer circumferential surface of the longitudinal hollow shell is provided with a fixing ring mouth fixedly installed in the component fixing mouth, the interior of the longitudinal hollow shell is provided with a longitudinal component active chamber, the top of the longitudinal hollow shell is provided with a gas docking channel connecting the external space and the top of the longitudinal component active chamber, the bottom end of the longitudinal hollow shell is provided with a rod body through hole connecting the external space and the bottom end of the longitudinal component active chamber, the longitudinal hollow shell is provided with a piston plate capable of axially moving along the longitudinal component active chamber in the interior of the longitudinal component active chamber, a coil spring is provided at the edge of the upper end surface of the piston plate, the bottom of the piston plate is provided with a hollow tube body which is an integral structure with it and passes through the rod body through hole, the bottom end of the hollow tube body is provided with a resistance plate which is an integral structure with it and is located directly above the screw rod, the bottom of the resistance plate is embedded with an annular sponge brush, and the interior of the hollow tube body is provided with gas flow holes with both the top and the bottom being open.

[0011] Preferably, the initial length of the coil spring is greater than the depth of the movable cavity of the longitudinal component.

[0012] Preferably, it also includes a longitudinal threaded pressure regulating mechanism, which is internally provided with a No. 1 externally threaded rod and a No. 2 externally threaded rod connected to the ends of the bottom mounting substrate and the top mounting substrate, a longitudinal threaded sleeve which is threadedly connected to the No. 1 externally threaded rod and the No. 2 externally threaded rod and can change the distance between the No. 1 externally threaded rod and the No. 2 externally threaded rod when rotating, and a polygonal limiting rod which is inserted into the axis of the No. 1 externally threaded rod and the No. 2 externally threaded rod and can prevent the No. 1 externally threaded rod and the No. 2 externally threaded rod from rotating relative to each other.

[0013] Preferably, the longitudinal threaded pressure regulating mechanism comprises a longitudinal threaded sleeve, a No. 1 externally threaded rod and a No. 2 externally threaded rod, one end of the longitudinal threaded sleeve is provided with a No. 1 internally threaded cavity with an inner concave structure, and the other end of the longitudinal threaded sleeve is provided with a No. 2 internally threaded cavity with an inner concave structure, the rod body of the No. 1 externally threaded rod is installed inside the No. 1 internally threaded cavity through the No. 1 threaded structure, and the rod body of the No. 2 externally threaded rod is installed inside the No. 2 internally threaded cavity through the No. 2 threaded structure, the No. 1 externally threaded rod and the No. 2 externally threaded rod are provided with polygonal limiting cavities with inner concave structures at opposite ends, a polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed at the center of the longitudinal threaded sleeve, one end of the No. 1 externally threaded rod is provided with a No. 1 connecting plate which is integrally structured with it and fixedly connected to the bottom mounting substrate, one end of the No. 2 externally threaded rod is provided with a No. 2 connecting plate which is integrally structured with it and fixedly connected to the top mounting substrate, and the outer circumferential surface of the longitudinal threaded sleeve is provided with a polygonal knob structure which is integrally structured with it and is easy to rotate.

[0014] Preferably, the structural shape of the polygonal limit cavity cross section is consistent with the structural shape of the polygonal limit rod cross section, both are polygonal structures, and the structural dimensions of the polygonal limit cavity cross section match the structural dimensions of the polygonal limit rod cross section.

[0015] Preferably, the No. 1 thread structure includes an internal thread structure arranged inside the No. 1 internal thread cavity and an external thread structure arranged on the No. 1 external thread rod body, and the No. 2 thread structure includes an internal thread structure arranged inside the No. 2 internal thread cavity and an external thread structure arranged on the No. 2 external thread rod body, and the spiral direction of the No. 1 thread structure is opposite to the spiral direction of the No. 2 thread structure.

[0016] Compared with the prior art, the present invention provides a screw surface dust removal and cleaning device, which has the following beneficial effects: The elasticity of the coil spring is used to achieve an elastic pressure-type resistance effect on the surface of the screw rod, so that the sponge brush can act on the surface of the screw rod with a certain force, thereby improving the cleaning effect of the screw rod. In addition, the device can adjust the working pressure according to actual conditions, thereby increasing the adjustment range of the equipment for the cleaning pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 is a three-dimensional cross-sectional view of the present invention; Figure 3 is a three-dimensional diagram of the threaded bracket mechanism of the present invention; Figure 4 A three-dimensional diagram of the elastic telescopic cleaning mechanism of the present invention; Figure 5 It is a three-dimensional cross-sectional view of the elastic telescopic cleaning mechanism of the present invention; Figure 6 It is a three-dimensional diagram of the longitudinal threaded pressure regulating mechanism of the present invention; Figure 7 It is a three-dimensional cross-sectional view of the longitudinal threaded pressure regulating mechanism of the present invention.

[0018] Among them: 1. bottom support base plate; 2. top mounting base plate; 3. component fixing port; 4. bottom mounting base plate; 5. screw rod; 6. threaded bracket mechanism; 61. sleeve bracket; 62. No. 1 fixing plate; 63. internal thread hole; 7. elastic telescopic cleaning mechanism; 71. longitudinal hollow shell; 72. fixing ring port; 73. longitudinal component active cavity; 74. gas docking channel; 75. rod body perforation; 76. piston plate; 77. hollow tube body; 78. contact plate; 79 , annular sponge brush; 710, gas flow hole; 711, coil spring; 8, longitudinal threaded pressure regulating mechanism; 81, longitudinal threaded sleeve; 82, No. 1 internal thread cavity; 83, No. 2 internal thread cavity; 84, No. 1 thread structure; 85, No. 2 thread structure; 86, No. 1 external thread rod; 87, No. 2 external thread rod; 88, No. 1 connecting plate; 89, No. 2 connecting plate; 810, polygonal limit cavity; 811, polygonal limit rod; 812, polygonal knob structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 and Figure 2A lead screw surface dust removal and cleaning device includes a bottom support base plate 1, two bottom mounting base plates 4 symmetrically fixedly mounted on the upper surface of the bottom support base plate 1, a top mounting base plate 2 located directly above the bottom mounting base plate 4, and a component fixing port 3 arranged at the center of the top mounting base plate 2. First, the gas docking channel 74 is docked with an air pump that provides high-pressure gas, and then the lead screw 5 is screwed into the sleeve bracket 61, and the annular sponge brush 79 is pressed against the top area of ​​the lead screw 5.

[0021] In order to realize the movable support function of the screw rod 5, please refer to Figure 1 , Figure 2 and Figure 3 , it is necessary to set up two threaded bracket mechanisms 6, inside which a sleeve bracket 61 is fixedly installed on the upper surface of the bottom supporting base plate 1 and can cooperate with the cleaned screw rod 5 so that the screw rod 5 can move laterally when rotating. Through the specific screw rod 5, a suitable sleeve bracket 61 is selected, and then the screw rod 5 is screwed into one of the internal threaded holes 63, and then the screw rod 5 is rotated in a certain direction. Due to the connection relationship of the threaded structure, the screw rod 5 will move laterally during the rotation process, thereby realizing the movable support function of the screw rod 5.

[0022] For the specific structure of the threaded bracket mechanism 6, please refer to Figure 3 , including a sleeve bracket 61, a No. 1 fixing plate 62 fixedly mounted on the upper surface of the bottom supporting substrate 1 is provided at the bottom of the sleeve bracket 61, an internal threaded hole 63 is provided at the center of the sleeve bracket 61, and an internal thread structure is provided at the circumferential inner wall of the sleeve bracket 61 located at the internal threaded hole 63, the two sleeve brackets 61 are symmetrically arranged about the coplanar axis of the two bottom mounting substrates 4, and the internal thread structure matches the external thread structure on the rod body of the screw rod 5.

[0023] In order to achieve elastic pressure wiping and gas cleaning effect on the screw 5, please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5, it is necessary to set up an elastic telescopic cleaning mechanism 7, which is provided with a longitudinal hollow shell 71 fixedly installed in the component fixing port 3 and in a hollow state, a hollow tube body 77 placed in the longitudinal hollow shell 71 and capable of axially moving along the longitudinal hollow shell 71, an annular sponge brush 79 that can move longitudinally with the hollow tube body 77 and can abut on the surface of the screw rod 5 to clean the screw rod 5, and a spiral spring 711 that generates downward elastic pressure on the hollow tube body 77. The annular sponge brush 79 abuts on the surface of the screw rod 5. Due to the action of the spiral spring 711, the annular sponge brush 79 will form elastic pressure on the screw rod 5, thereby performing elastic pressure wiping on the threaded rod 5 during the rotational movement of the screw rod 5. The operation of the air pump will allow the gas to enter the interior of the longitudinal component active cavity 73, and then blow to the threaded rod through the gas flow hole 710, thereby achieving a gas cleaning effect.

[0024] For the specific structure of the elastic telescopic cleaning mechanism 7, please refer to Figure 4 and Figure 5 , comprising a longitudinal hollow shell 71, wherein the outer circumferential surface of the longitudinal hollow shell 71 is provided with a fixing ring opening 72 fixedly installed in the component fixing opening 3, wherein the interior of the longitudinal hollow shell 71 is provided with a longitudinal component movable cavity 73, wherein the top of the longitudinal hollow shell 71 is provided with a gas docking channel 74 connecting the external space and the top of the longitudinal component movable cavity 73, wherein the bottom of the longitudinal hollow shell 71 is provided with a rod body through hole 75 connecting the external space and the bottom of the longitudinal component movable cavity 73, wherein ... 73 is a piston plate 76 that moves axially, and a coil spring 711 is placed on the edge of the upper end surface of the piston plate 76. The bottom of the piston plate 76 is provided with a hollow tube body 77 that is an integral structure with it and passes through the rod body through hole 75. The bottom end of the hollow tube body 77 is provided with a resistance plate 78 that is an integral structure with it and is located directly above the screw rod 5. An annular sponge brush 79 is embedded in the bottom of the resistance plate 78. The interior of the hollow tube body 77 is provided with a gas flow hole 710 with both the top and the bottom being open. The initial length of the coil spring 711 is greater than the depth of the longitudinal component active cavity 73.

[0025] To adjust the working pressure, please refer to Figure 1 , Figure 2 , Figure 6 and Figure 7, it is necessary to set up a longitudinal threaded pressure regulating mechanism 8, which is provided with a No. 1 external threaded rod 86 and a No. 2 external threaded rod 87 connected to the ends of the bottom mounting substrate 4 and the top mounting substrate 2, a longitudinal threaded sleeve 81 which is threadedly connected to the No. 1 external threaded rod 86 and the No. 2 external threaded rod 87 and can change the distance between the No. 1 external threaded rod 86 and the No. 2 external threaded rod 87 when rotating, and a polygonal limiting rod 811 which is inserted into the axis of the No. 1 external threaded rod 86 and the No. 2 external threaded rod 87 and can prevent the No. 1 external threaded rod 86 and the No. 2 external threaded rod 87 from rotating relative to each other. The longitudinal threaded sleeve 81 is rotated in a directional manner. Due to the No. 1 threaded structure 84 The spiral direction is opposite to the spiral direction of the No. 2 threaded structure 85, and during the rotation process, the existence of the polygonal limit rod 811 prevents the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 from relative rotation. Therefore, the distance between the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 will change, thereby driving the top mounting base plate 2 to move longitudinally to change the distance between the lead screw 5 and the top of the coil spring 711, thereby changing the compression stroke of the coil spring 711, and ultimately changing the elastic strength of the coil spring 711 during operation, thereby changing the elastic pressure of the annular sponge brush 79 on the lead screw 5, thereby realizing the function of adjusting the working pressure.

[0026] For the specific structure of the longitudinal threaded pressure regulating mechanism 8, please refer to Figure 6 and Figure 7, including a longitudinal threaded sleeve 81, a No. 1 externally threaded rod 86 and a No. 2 externally threaded rod 87, one end of the longitudinal threaded sleeve 81 is provided with a No. 1 internally threaded cavity 82 with an inner concave structure, and the other end of the longitudinal threaded sleeve 81 is provided with a No. 2 internally threaded cavity 83 with an inner concave structure, the rod body of the No. 1 externally threaded rod 86 is installed in the interior of the No. 1 internally threaded cavity 82 through a No. 1 threaded structure 84, and the rod body of the No. 2 externally threaded rod 87 is installed in the interior of the No. 2 internally threaded cavity 83 through a No. 2 threaded structure 85, the No. 1 externally threaded rod 86 and the No. 2 externally threaded rod 87 are provided with a polygonal limiting cavity 810 with an inner concave structure at the opposite ends, a polygonal limiting rod 811 inserted into the polygonal limiting cavity 810 is fixedly installed in the center of the longitudinal threaded sleeve 81, one end of the No. 1 externally threaded rod 86 is provided with a No. 1 connecting plate 88 with its integral structure and fixedly connected to the bottom mounting base plate 4, the No. 2 externally threaded rod 87 A No. 2 connecting plate 89 is provided at one end, which is an integral structure with it and fixedly connected to the top mounting base plate 2. The outer circumferential surface of the longitudinal threaded sleeve 81 is provided with a polygonal knob structure 812, which is an integral structure with it and is easy to rotate. The structural shape of the cross section of the polygonal limit cavity 810 is consistent with the structural shape of the cross section of the polygonal limit rod 811, both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal limit cavity 810 match the structural dimensions of the cross section of the polygonal limit rod 811. The No. 1 threaded structure 84 includes an internal threaded structure arranged inside the No. 1 internal threaded cavity 82 and an external threaded structure arranged on the rod body of the No. 1 external threaded rod 86. The No. 2 threaded structure 85 includes an internal threaded structure arranged inside the No. 2 internal threaded cavity 83 and an external threaded structure arranged on the rod body of the No. 2 external threaded rod 87, and the spiral direction of the No. 1 threaded structure 84 is opposite to the spiral direction of the No. 2 threaded structure 85.

[0027] When in use, through the specific screw rod 5, a suitable sleeve bracket 61 is selected to connect the gas docking channel 74 with an air pump providing high-pressure gas, and then the screw rod 5 is screwed into the sleeve bracket 61, and the annular sponge brush 79 is pressed against the top area of ​​the screw rod 5, and the longitudinal threaded sleeve 81 is rotated in a directional manner. The distance between the No. 1 external thread rod 86 and the No. 2 external thread rod 87 will change, thereby driving the top mounting base plate 2 to move longitudinally, so as to change the distance between the screw rod 5 and the top of the coil spring 711, thereby changing the coil spring 711. The compression stroke will always change the elastic strength of the coil spring 711 during operation, thereby changing the elastic pressure of the annular sponge brush 79 on the screw rod 5. The annular sponge brush 79 contacts the surface of the screw rod 5. Due to the action of the coil spring 711, the annular sponge brush 79 will form elastic pressure on the screw rod 5, thereby wiping the thread teeth with elastic pressure during the rotational movement of the screw rod 5. The operation of the air pump will allow the gas to enter the interior of the longitudinal component active cavity 73, and then blow toward the thread teeth through the gas flow hole 710, thereby achieving a gas cleaning effect.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw surface dust removal and cleaning device, comprising a bottom support base plate (1), two bottom mounting base plates (4) symmetrically fixedly mounted on the upper surface of the bottom support base plate (1), a top mounting base plate (2) located directly above the bottom mounting base plates (4), and a component fixing opening (3) arranged at the center of the top mounting base plate (2), characterized in that: Also includes, Two threaded bracket mechanisms (6), each of which has a sleeve bracket (61) fixedly mounted on the upper surface of the bottom support base plate (1) and capable of cooperating with the screw rod (5) to be cleaned so that the screw rod (5) can produce a lateral movement effect when rotating; and an elastic telescopic cleaning mechanism (7), wherein a longitudinal hollow shell (71) is provided inside the mechanism and is fixedly mounted in the component fixing opening (3) and is in a hollow state inside; a hollow tube (77) is placed inside the longitudinal hollow shell (71) and is capable of axial movement along the longitudinal hollow shell (71); an annular sponge brush (79) is capable of longitudinal movement with the hollow tube (77) and is capable of contacting the surface of the screw rod (5) to clean the screw rod (5); and a spiral spring (711) is provided to generate downward elastic pressure on the hollow tube (77).

2. A screw surface dust removal and cleaning device according to claim 1, characterized in that: The threaded bracket mechanism (6) comprises a sleeve bracket (61), the bottom of the sleeve bracket (61) is provided with a No. 1 fixing plate (62) fixedly mounted on the upper surface of the bottom supporting base plate (1), the center of the sleeve bracket (61) is provided with an internal thread hole (63), and the sleeve bracket (61) is provided with an internal thread structure at the circumferential inner wall of the internal thread hole (63).

3. A screw surface dust removal and cleaning device according to claim 2, characterized in that: The two sleeve brackets (61) are arranged coplanarly and symmetrically with respect to the axis lines of the two bottom mounting substrates (4).

4. A screw surface dust removal and cleaning device according to claim 3, characterized in that: The internal thread structure matches the external thread structure on the rod body of the screw rod (5).

5. A screw surface dust removal and cleaning device according to claim 4, characterized in that: The elastic telescopic cleaning mechanism (7) comprises a longitudinal hollow shell (71), the outer circumferential surface of the longitudinal hollow shell (71) is provided with a fixing ring opening (72) fixedly mounted in the component fixing opening (3), the interior of the longitudinal hollow shell (71) is provided with a longitudinal component movable cavity (73), the top end of the longitudinal hollow shell (71) is provided with a gas docking channel (74) connecting the external space and the top end of the longitudinal component movable cavity (73), the bottom end of the longitudinal hollow shell (71) is provided with a rod body through hole (75) connecting the external space and the bottom end of the longitudinal component movable cavity (73), and the longitudinal hollow shell (71) is provided with a gas docking channel (74) connecting the external space and the bottom end of the longitudinal component movable cavity (73). A piston plate (76) capable of axially moving along the longitudinal component movable chamber (73) is arranged inside the movable chamber (73), a coil spring (711) is arranged on the edge of the upper end surface of the piston plate (76), a hollow tube (77) which is an integral structure with the piston plate (76) and passes through the rod body through hole (75) is arranged at the bottom of the piston plate (76), a resistance plate (78) which is an integral structure with the piston plate (76) and is located directly above the screw rod (5) is arranged at the bottom end of the hollow tube (77), an annular sponge brush (79) is embedded in the bottom of the resistance plate (78), and a gas flow hole (710) with both the top and bottom ends being open is arranged inside the hollow tube (77).

6. A screw surface dust removal and cleaning device according to claim 5, characterized in that: The initial length of the coil spring (711) is greater than the depth of the longitudinal component active cavity (73).

7. A screw surface dust removal and cleaning device according to any one of claims 1 to 6, characterized in that: The invention also comprises a longitudinal threaded pressure regulating mechanism (8), the interior of which is provided with a No. 1 externally threaded rod (86) and a No. 2 externally threaded rod (87) connected to the ends of the bottom mounting substrate (4) and the top mounting substrate (2), a longitudinal threaded sleeve (81) threadedly connected to the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of changing the distance between the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) when rotating, and a polygonal limiting rod (811) inserted at the axis of the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) and capable of preventing the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) from rotating relative to each other.

8. A screw surface dust removal and cleaning device according to claim 7, characterized in that: The longitudinal threaded pressure regulating mechanism (8) comprises a longitudinal threaded sleeve (81), a No. 1 externally threaded rod (86) and a No. 2 externally threaded rod (87); one end of the longitudinal threaded sleeve (81) is provided with a No. 1 internally threaded cavity (82) with an inner concave structure; the other end of the longitudinal threaded sleeve (81) is provided with a No. 2 internally threaded cavity (83) with an inner concave structure; the rod body of the No. 1 externally threaded rod (86) is installed inside the No. 1 internally threaded cavity (82) via a No. 1 threaded structure (84); the rod body of the No. 2 externally threaded rod (87) is installed inside the No. 2 internally threaded cavity (83) via a No. 2 threaded structure (85); the No. 1 externally threaded rod (86) and the No. 2 externally threaded rod (87) are installed inside the No. 2 internally threaded cavity (83) via a No. 2 threaded structure (85); The threaded rod (87) is provided with a polygonal limiting cavity (810) with an inwardly concave structure at the opposite end; a polygonal limiting rod (811) inserted into the polygonal limiting cavity (810) is fixedly installed at the center of the longitudinal threaded sleeve (81); one end of the No. 1 external threaded rod (86) is provided with a No. 1 connecting plate (88) which is integrally formed with the rod and fixedly connected to the bottom mounting substrate (4); one end of the No. 2 external threaded rod (87) is provided with a No. 2 connecting plate (89) which is integrally formed with the rod and fixedly connected to the top mounting substrate (2); and the outer circumferential surface of the longitudinal threaded sleeve (81) is provided with a polygonal knob structure (812) which is integrally formed with the rod and convenient for rotation.

9. A screw surface dust removal and cleaning device according to claim 8, characterized in that: The structural shape of the cross section of the polygonal limiting cavity (810) is consistent with the structural shape of the cross section of the polygonal limiting rod (811), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal limiting cavity (810) match the structural dimensions of the cross section of the polygonal limiting rod (811).

10. A screw surface dust removal and cleaning device according to claim 9, characterized in that: The No. 1 thread structure (84) comprises an internal thread structure arranged inside the No. 1 internal thread cavity (82) and an external thread structure arranged on the rod body of the No. 1 external thread rod (86); the No. 2 thread structure (85) comprises an internal thread structure arranged inside the No. 2 internal thread cavity (83) and an external thread structure arranged on the rod body of the No. 2 external thread rod (87); and the spiral direction of the No. 1 thread structure (84) is opposite to the spiral direction of the No. 2 thread structure (85).

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