A rolling motion conversion mechanism

Abstract

The present invention discloses a rolling motion conversion mechanism, including a conversion seat, wherein both sides of the conversion seat are provided with linear rolling parts, a through hole is provided in the middle of the conversion seat, a spiral rolling part is embedded and connected in the through hole, a through groove with an upward arch in the middle is provided on the top of the conversion seat, a pair of linear raceways are provided on the outer side of the lower end of the conversion seat, the linear raceways are parallel to the through hole, two reverse channels are provided in parallel between the linear raceways and the through hole, a main lubricating oil path is provided between the two sides of the top of the conversion seat and the middle two ends, a dustproof device is provided above the conversion seat, the dustproof device includes a dustproof steel belt, an elastic tension adjustment mechanism, a friction-reducing sticker and a protective cover, and a lubrication device is provided on the conversion seat. Compared with the prior art, the advantages of the present invention are: it can efficiently complete the conversion between rotational motion and linear motion, has low noise, long service life, and can adapt to different application occasions.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mechanism equipment, in particular to a rolling motion conversion mechanism. Background Art

[0002] The rolling motion conversion mechanism is a widely used rolling functional component. The rolling motion conversion mechanism integrates the functions of three major functional components: a conventional ball nut, a ball nut mounting seat, and a rolling linear slider. The existing rolling conversion mechanism and magnetic conversion mechanism have problems such as high noise, uneven force on the steel belt, and easy damage, so improvements are needed. Summary of the invention

[0003] The purpose of the present invention is to overcome the above technical defects and provide a rolling motion conversion mechanism that can efficiently complete the conversion between rotational motion and linear motion, has low noise, uniform steel belt indentation, uniform force, long service life, and can adapt to different application occasions.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is: a rolling motion conversion mechanism, including a conversion seat, linear rolling parts are arranged on both sides of the conversion seat, a through hole is arranged in the middle of the conversion seat, a spiral rolling part is embedded in the through hole, a through groove with an upward arch in the middle is arranged on the top of the conversion seat, a pair of linear raceways are arranged on the outer side of the lower end of the conversion seat, the linear raceways are parallel to the through hole, two reverse channels are arranged in parallel between the linear raceways and the through hole, a main lubricating oil path is arranged between the two sides of the top of the conversion seat and the middle two ends, a dustproof device is arranged above the conversion seat, the dustproof device includes a dustproof steel belt, an elastic tension adjustment mechanism, a friction-reducing sticker and a shield, a lubrication device is arranged on the conversion seat, and the lubrication device includes It includes a main lubricating oil circuit, a distribution oil circuit, a spiral rolling oil circuit, a linear rolling oil circuit, an oil quantity adjusting screw, a sealing adjusting block, an oil plug, an oil reservoir and an oil felt strip. The oil quantity adjusting screw is installed in the main oil circuit opening in the spiral rolling part flange near the end face of the conversion seat. The sealing adjusting block is clamped between the end reversers at both ends of the spiral rolling part and the linear rolling part. A notch is provided on the sealing adjusting block to connect the linear rolling oil circuit. The oil reservoir is symmetrically arranged with the spiral rolling part and is connected to the threaded hole in the middle of the end face of the conversion seat by screws. The oil reservoir is a hollow structure and is provided with a flange. A number of small holes are provided inside and outside the flange. Most of the length of the oil felt strip is coiled in the oil reservoir, and the ends of the oil felt strip extend out from the small holes in the oil reservoir and are respectively connected to the linear rolling oil circuit and the spiral rolling oil circuit.

[0005] The advantages of the present invention compared with the prior art are that the present invention can efficiently complete the conversion between rotational motion and linear motion, and at the same time has a unique dustproof and lubrication design, and can adapt to low-noise, high-rigidity, high-precision, non-magnetic and other transmission applications.

[0006] As an improvement, the spiral rolling part is a cylinder connected to a flange, the shape of the flange matches the conversion seat and the linear rolling part, and the flange is provided with a plurality of through holes, which correspond to the threaded holes in the middle of the end face of the conversion seat and are connected by screws.

[0007] As an improvement, a spiral raceway 1 is provided around the through hole, an external screw rod passes through the middle of the through hole, a spiral raceway 2 is provided around the outer periphery of the screw rod, balls are provided between spiral raceway 1 and spiral raceway 2, an internal reverser and a ball reverse channel are provided inside the cylindrical body of the spiral rolling part, so that the balls of the spiral rolling part can roll in an infinite cycle, and a distribution oil circuit is integrated in the spiral rolling part.

[0008] As an improvement, the elastic tension adjustment mechanism is symmetrically arranged at the two ends of the top of the conversion seat, and the elastic tension adjustment mechanism includes a tension adjustment part, a locking part, and an action part. The locking part is connected to the threaded hole on the upper end face of the conversion seat through a screw, and the action part is in contact with the surface of the dustproof steel belt. The contact surface between the action part and the dustproof steel belt is pasted with a friction-reducing sticker.

[0009] As an improvement, the tension adjustment part includes a rotating fulcrum, an adjustment screw and a swing fulcrum. The adjustment screw is installed in a threaded hole on the conversion seat. Rotating the adjustment screw can cause the swing fulcrum to swing and the action part to swing at the same time, thereby adjusting the pressure of the action part on the dustproof steel belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the use structure of the present invention.

[0011] Figure 2 It is a schematic diagram of the conversion seat structure of the present invention.

[0012] Figure 3 It is a schematic diagram of the cross-sectional structure of the conversion seat of the present invention.

[0013] Figure 4 It is a schematic diagram of the structure of the spiral rolling part of the present invention.

[0014] Figure 5 It is a structural schematic diagram of the tension adjustment part of the present invention.

[0015] Figure 6 It is a structural schematic diagram of the elastic tension adjustment mechanism of the present invention.

[0016] Figure 7 It is a schematic diagram of the application structure of the single-pass lubricating oil circuit of the present invention.

[0017] Figure 8 It is a schematic diagram of the application structure of the double-pass lubricating oil circuit of the present invention.

[0018] Fig. 9It is a schematic diagram of the application structure of the lubricating oil circuit of the oil reservoir of the present invention.

[0019] As shown in the figure: 1. conversion seat, 3. through hole, 4. spiral rolling part, 5. through groove, 6. linear raceway, 7. reverse channel, 8. main lubricating oil circuit, 9. dustproof steel belt, 10. elastic tension adjustment mechanism, 11. wear-reducing sticker, 12. protective cover, 13. distribution oil circuit, 14. spiral rolling oil circuit, 15. linear rolling oil circuit, 16. oil quantity adjustment screw, 17. sealing adjustment block, 18. oil plug, 19. oil reservoir, 20. felt strip, 21. main oil circuit opening, 24. spiral raceway 1, 25. ball, 26. internal reverser, 27. ball reverse channel, 28. tension adjustment part, 29. locking part, 30. action part, 32. swivel fulcrum, 33. adjustment screw, 34. swing fulcrum. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0021] A rolling motion conversion mechanism comprises a conversion seat 1, wherein both sides of the conversion seat 1 are provided with linear rolling parts, a through hole 3 is provided in the middle of the conversion seat 1, a spiral rolling part 4 is embedded and connected in the through hole 3, a through groove 5 with an upward arch in the middle is provided on the top of the conversion seat 1, a pair of linear raceways 6 are provided on the outer side of the lower end of the conversion seat, the linear raceways 6 are parallel to the through hole 3, two reverse channels 7 are provided in parallel between the linear raceways 6 and the through hole 3, a main lubricating oil path 8 is provided between the two sides of the top of the conversion seat 1 and the middle two ends, a dustproof device is provided above the conversion seat 1, the dustproof device comprises a dustproof steel belt 9, an elastic tension adjustment mechanism 10, a friction reducing sticker 11 and a shield 12, a lubricating device is provided on the conversion seat 1, the lubricating device comprises a main lubricating oil path 8, a distribution oil path 13, a spiral rolling oil path 14, a distribution oil path 15, a spiral rolling oil path 16, a distribution oil path 17, a spiral rolling oil path 18, a distribution oil path 19, a spiral rolling oil path 20, a spiral rolling oil path 21, a spiral rolling oil path 22, a spiral rolling oil path 23, a spiral rolling oil path 24, a spiral rolling oil path 25, a spiral rolling oil path 26, a spiral rolling oil path 27, a spiral rolling oil path 28, a spiral rolling oil path 29, a spiral rolling oil path 30, a spiral rolling oil path 31, a spiral rolling oil path 32, a spiral rolling oil path 33, a spiral rolling oil path 34, a spiral rolling oil path 35, a spiral rolling oil path 36, a spiral rolling oil path 37, a spiral rolling oil path 38, a spiral rolling oil path 39, a spiral rolling oil path 40, a spiral rolling The oil volume adjusting screw 16 is installed in the main oil passage 21 near the end face of the conversion seat 1 in the flange of the spiral rolling part 4, and the sealing adjusting block 17 is clamped between the two ends of the spiral rolling part 4 and the linear rolling part. A notch is provided on the sealing adjusting block 17 to connect the linear rolling oil passage 15. The oil reservoir 19 is symmetrically arranged with the spiral rolling part 4 and connected with the threaded hole in the middle of the end face of the conversion seat 1 by screws. The oil reservoir 19 is a hollow structure and is provided with a flange. A plurality of small holes are provided inside and outside the flange. Most of the length of the oil felt strip 20 is coiled in the oil reservoir 19, and the ends of the oil felt strip 20 extend out from the small holes of the oil reservoir 19 and are respectively connected with the linear rolling oil passage 15 and the spiral rolling oil passage 14.

[0022] The spiral rolling part 4 is a cylinder connected to a flange, the shape of the flange matches the conversion seat 1 and the linear rolling part, and a plurality of through holes are provided on the flange, which correspond to the threaded holes in the middle of the end face of the conversion seat 1 and are connected by screws.

[0023] A spiral raceway 1 24 is provided around the through hole 3, an external screw rod passes through the middle of the through hole 3, a spiral raceway 2 is provided around the outer periphery of the screw rod, a ball 25 is provided between the spiral raceway 1 and the spiral raceway 2, an internal deflector 26 and a ball reversal channel 27 are provided inside the cylindrical body of the spiral rolling part 4, so that the ball 25 of the spiral rolling part 4 can roll in an infinite cycle, and a distribution oil circuit 13 is integrated in the spiral rolling part 4.

[0024] The elastic tension adjustment mechanism 10 is symmetrically arranged at the two ends of the top of the conversion seat 1. The elastic tension adjustment mechanism 10 includes a tension adjustment part 28, a locking part 29, and an action part 30. The locking part 29 is connected to the threaded hole on the upper end surface of the conversion seat 1 through a screw. The action part 30 is in contact with the surface of the dustproof steel belt 9. The contact surface between the action part 30 and the dustproof steel belt 9 is pasted with a friction-reducing sticker 11.

[0025] The tension adjustment part 28 includes a rotary fulcrum 32, an adjustment screw 33 and a swing fulcrum 34. The adjustment screw 33 is installed in a threaded hole on the conversion seat 1. Rotating the adjustment screw 33 can swing the swing fulcrum 34 and simultaneously swing the action part 30, thereby adjusting the pressure of the action part 30 on the dustproof steel belt 9.

[0026] When the present invention is implemented, the lubrication device can use different lubricating oil circuits for different usage occasions. Commonly used ones include single-pass lubricating oil circuits, double-pass lubricating oil circuits and oil reservoir lubricating oil circuits. The single-pass lubricating oil circuit is suitable for general applications, the double-pass lubricating oil circuit is suitable for heavy-load and high-precision applications, and the oil reservoir lubricating oil circuit is suitable for high-speed applications where lubricating oil must be used. In such occasions, grease lubrication cannot be used, and an external oil pump lubrication system cannot be connected.

[0027] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A rolling motion conversion mechanism, characterized in that: The invention comprises a conversion seat (1), wherein both sides of the conversion seat (1) are provided with linear rolling parts, a through hole (3) is provided in the middle of the conversion seat (1), a spiral rolling part (4) is embedded in the through hole (3), a through groove (5) with an upward arch in the middle is provided on the top of the conversion seat (1), a pair of linear raceways (6) are provided on the outer side of the lower end of the conversion seat, the linear raceways (6) are parallel to the through hole (3), two reverse channels (7) are provided in parallel between the linear raceways (6) and the through hole (3), a main lubricating oil path (8) is provided between the two sides of the top of the conversion seat (1) and the middle two ends, a dustproof device is provided above the conversion seat (1), and the dustproof device comprises a dustproof steel belt (9), an elastic tension adjustment mechanism (10), The conversion seat (1) is provided with a lubricating device, which includes a main lubricating oil circuit (8), a distribution oil circuit (13), a spiral rolling oil circuit (14), a linear rolling oil circuit (15), an oil quantity adjustment screw (16), a sealing adjustment block (17), an oil plug (18), an oil reservoir (19) and an oil felt strip (20). The oil quantity adjustment screw (16) is installed in the main oil circuit opening (21) near the end surface of the conversion seat (1) in the flange of the spiral rolling part (4). The sealing adjustment block (17) is clamped between the end deflectors at both ends of the spiral rolling part (4) and the linear rolling part. A notch is opened on the sealing adjustment block (17) to connect the linear rolling oil circuit (15). The oil reservoir (19) The oil reservoir (19) is symmetrically arranged with the spiral rolling part (4) and connected with the threaded hole in the middle of the end face of the conversion seat (1) by screws. The oil reservoir (19) is a hollow structure and is provided with a flange. A plurality of small holes are opened inside and outside the flange. Most of the length of the oil felt strip (20) is coiled in the oil reservoir (19). The ends of the oil felt strip (20) extend out from the small holes of the oil reservoir (19) and are respectively connected with the linear rolling oil circuit (15) and the spiral rolling oil circuit (14). The through hole (3) is provided with a spiral raceway 1 (24) around the hole. The middle of the through hole (3) is for the external screw to pass through. The outer periphery of the screw is provided with a spiral raceway 2. A ball (25) is provided between the spiral raceway 1 and the spiral raceway 2. The cylindrical body of the spiral rolling part (4) is provided with an internal deflector (26) and a ball deflector. The spiral rolling part (4) has a distribution oil path (13) integrated therein. The elastic tension adjustment mechanism (10) is symmetrically arranged at the two ends of the top of the conversion seat (1). The elastic tension adjustment mechanism (10) comprises a tension adjustment part (28), a locking part (29), and an action part (30). The locking part (29) is connected to the threaded hole on the upper end surface of the conversion seat (1) by a screw. The action part (30) contacts the surface of the dustproof steel belt (9). The contact surface between the action part (30) and the dustproof steel belt (9) is pasted with a friction-reducing sticker (11). The tension adjustment part (28) comprises a rotation fulcrum (32), an adjustment screw (33), and a swing fulcrum (34).The adjusting screw (33) is installed in the threaded hole on the conversion seat (1). Rotating the adjusting screw (33) can make the swing fulcrum (34) swing, and at the same time make the action part (30) swing, so as to adjust the pressure of the action part (30) on the dustproof steel belt (9).

2. A rolling motion conversion mechanism according to claim 1, characterized in that: The spiral rolling part (4) is a cylindrical body connected to a flange, the shape of the flange matches the conversion seat (1) and the linear rolling part, and a plurality of through holes are provided on the flange, which correspond to the threaded holes in the middle of the end face of the conversion seat (1) and are connected by screws.

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