CN216200239U

CN216200239U - Ball of aviation high accuracy

Info

Publication number: CN216200239U
Application number: CN202122424505.9U
Authority: CN
Inventors: 司久芝
Original assignee: Anhui Yinlei Linear Guide Manufacturing Co ltd
Current assignee: Anhui Yinlei Linear Guide Manufacturing Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model provides a high-precision ball screw with a novel structural design for aviation, which comprises a screw body, wherein a nut is sleeved outside the screw body, rolling grooves are formed in the outer wall of the screw body and the inner wall of the nut, balls roll in the rolling grooves, an oil filling groove is formed in the outer wall of the top of the nut, a sealing gasket is clamped in the oil filling groove, a sealing cover is connected to the inner wall of the oil filling groove in a threaded mode, a clamping groove is formed in the outer wall of the top of the sealing gasket, and a clamping block inserted in the clamping groove is arranged on the outer wall of the bottom of the sealing cover. According to the utility model, lubricating oil can be added into the cavity through the oil filling groove, the ball can be stained with the lubricating oil when contacting with the sponge, the function of adding the lubricating oil is realized, the problem that the ball and the screw rod body are easy to wear under long-time work is avoided, the service life of the ball screw is prolonged, the sealing gasket can prevent the lubricating oil from leaking from the inside of the oil filling groove, and the sealing gasket can be reinforced by the sealing cover and the clamping block.

Description

Ball of aviation high accuracy

Technical Field

The utility model relates to the technical field of ball screws, in particular to a high-precision ball screw for aviation.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Because of its small frictional resistance, the ball screw is widely used in various industrial equipments and precision instruments, and is composed of a screw, a nut, a steel ball, a preforming piece, a reverser, and a dust-proof device. Its function is to convert the rotary motion into a linear motion, which is a further extension and development of the acme screw, the important meaning of this development is to change the bearing from sliding motion to rolling motion.

The conventional high-precision ball screw for aviation does not have a function of adding lubricating oil, easily causes abrasion between balls and a screw body in long-time operation, does not have a function of cleaning a rolling groove, and causes resistance to sliding of the balls due to adhesion of dust in the rolling groove, so that a nut cannot slide smoothly.

Disclosure of Invention

The utility model aims to solve the defects that the prior art does not have the function of adding lubricating oil and the function of cleaning a rolling groove, and provides a high-precision ball screw for aviation.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an aviation is with ball of high accuracy, includes the lead screw body, the nut has been cup jointed to the outside of lead screw body, the rolling groove has all been seted up on the outer wall of lead screw body and on the inner wall of nut, and the inside of rolling groove rolls there is the ball, oil feeding groove has been seted up on the outer wall at nut top, and oil feeding groove's inside card has put sealed the pad, threaded connection has sealed lid on oil feeding groove's the inner wall, seted up the draw-in groove on the outer wall at sealed pad top, and be provided with the fixture block of grafting in the inside of draw-in groove on the outer wall of sealed lid bottom, the cavity that is linked together with oil feeding groove is seted up to the inside of nut, and is provided with the sponge on the inner wall of cavity bottom, set up the through-hole that is equidistance structural distribution on the inner wall of nut, and the sponge joint is in the inside of through-hole.

Furthermore, the outer walls of the two sides of the nut are welded with extension rings, and the inner walls of the extension rings are provided with a plurality of movable grooves.

Furthermore, the inside sliding connection in activity groove has the movable block, and the welding has the cleaning brush on the outer wall of movable block bottom.

Furthermore, the inner wall of the movable groove is welded with a guide rod, and the guide rod is inserted in the movable block in a sliding manner.

Furthermore, a spring is welded on the outer wall of the top of the movable block and sleeved outside the guide rod.

Furthermore, a cooling groove is formed in the nut in a clamped mode, and a cold guide plate is arranged on the inner wall of the cooling groove.

Furthermore, all set up logical groove on the outer wall of nut top and bottom, and the welding has the condenser pipe of being connected with the cooling bath on the inner wall that leads to the groove, the top threaded connection of condenser pipe has the tube cap.

The utility model has the beneficial effects that:

1. through cavity, sponge, through-hole, slot rolling, ball and the tank filler that sets up, can add the inside of cavity with lubricating oil through the tank filler, lubricating oil can be stained with when ball and the sponge contact, has realized the function of adding lubricating oil, has avoided making ball and lead screw body wearing and tearing problem appear under long-time work easily, has prolonged ball's life.

2. Through the sealing gasket, the sealing cover, the clamping groove and the clamping block which are arranged, the sealing gasket can prevent lubricating oil from leaking from the inside of the oil feeding groove, the sealing cover and the clamping block can reinforce the sealing gasket, the phenomenon that the sealing gasket slides is prevented, and the sealing performance of the oil feeding groove is guaranteed.

3. Through extension ring, movable slot, guide bar, movable block, clearance brush and the spring that sets up, the clearance brush can clear up the slot rolling, avoids the inside adnexed dust of slot rolling to cause the influence to the roll of ball, has solved the dust and has attached to the problem that causes the resistance dust for the slip of ball in the inside of slot rolling, and more smooth and easy when messenger's ball rolls.

4. Through the cooling tank that sets up, lead groove, condenser pipe, lead cold plate and tube cap, can add the condensate to leading to inslot portion through the cooling tank, lead cold plate can be with between air conditioning leading nut and the lead screw body, can cool off the lead screw body, prevent that the lead screw body from working under the high temperature always.

Drawings

FIG. 1 is a schematic perspective view of a high-precision ball screw for aviation according to the present invention;

FIG. 2 is a schematic cross-sectional view of a high-precision ball screw for aviation according to the present invention;

FIG. 3 is a schematic structural view of a sealing cover of a high-precision ball screw for aviation according to the present invention;

fig. 4 is a schematic diagram of a rolling groove cleaning structure of an aviation high-precision ball screw according to the present invention.

In the figure: the structure comprises a screw rod body 1, a nut 2, a cavity 3, sponge 4, a through hole 5, a rolling groove 6, a ball 7, an oil filling groove 8, a sealing gasket 9, a sealing cover 10, a clamping groove 11, a clamping block 12, an extension ring 13, a movable groove 14, a guide rod 15, a movable block 16, a cleaning brush 17, a spring 18, a cooling groove 19, a through groove 20, a condenser pipe 21, a cold guide plate 22 and a pipe cover 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a high-precision ball screw for aviation comprises a screw body 1, a nut 2 is sleeved outside the screw body 1, rolling grooves 6 are formed in the outer wall of the screw body 1 and the inner wall of the nut 2, balls 7 roll in the rolling grooves 6, an oil filling groove 8 is formed in the outer wall of the top of the nut 2, a sealing gasket 9 is clamped in the oil filling groove 8, a sealing cover 10 is connected to the inner wall of the oil filling groove 8 through threads, a clamping groove 11 is formed in the outer wall of the top of the sealing gasket 9, a clamping block 12 is arranged on the outer wall of the bottom of the sealing cover 10 and is inserted in the clamping groove 11, a cavity 3 communicated with the oil filling groove 8 is formed in the nut 2, sponges 4 are arranged on the inner wall of the bottom of the cavity 3 at equal intervals, through holes 5 distributed in a structural manner are formed in the inner wall of the nut 2, and the sponges 4 are clamped in the through holes 5, can add the inside of cavity 3 with lubricating oil through oiling groove 8, can be stained with the lubricating oil on the sponge 4 when ball 7 rolls, can play lubricated effect to lead screw body 1 and ball 7, prevent to make ball 7 and lead screw body 1 the problem that wearing and tearing appear easily under the long-time work.

Further, all weld on the outer wall of nut 2 both sides and have extended ring 13, and seted up a plurality of movable groove 14 on extended ring 13's the inner wall, a plurality of movable groove 14 can install a plurality of cleaning brushes 17.

Further, the inside sliding connection of activity groove 14 has movable block 16, and the welding has cleaning brush 17 on the outer wall of movable block 16 bottom, and a plurality of cleaning brush 17 can be to the more thorough of rolling slot 6 clearance.

Furthermore, the guide rod 15 is welded on the inner wall of the movable groove 14, and the guide rod 15 is inserted in the movable block 16 in a sliding manner, so that the movable block 16 can be prevented from deviating.

Further, a spring 18 is welded on the outer wall of the top of the movable block 16, the spring 18 is sleeved outside the guide rod 15, and the cleaning brush 17 can be always attached to the rolling groove 6 by the elastic stretching force of the spring 18.

Further, the inside card of nut 2 has seted up cooling bath 19, and is provided with on the inner wall of cooling bath 19 and leads cold plate 22, leads cold plate 22 and can conduct the cold air of coolant liquid between lead screw body 1 and nut 2, cools off lead screw body 1 and nut 2.

Further, all seted up logical groove 20 on the outer wall of nut 2 top and bottom, and the welding has the condenser pipe 21 that is connected with cooling bath 19 on leading to the inner wall of groove 20, and the top threaded connection of condenser pipe 21 has a tube cap 23, can add the inside of cooling bath 19 with the condensate through condenser pipe 21.

The working principle is as follows: when the high-precision ball screw for aviation is used, lubricating oil is added into the cavity 3 through the oil filling groove 8, the sealing gasket 10 is clamped in the oil filling groove 8, the sealing cover 10 is screwed in the oil filling groove 8, the lubricating oil can be prevented from seeping out through the oil filling groove 8, when the nut 2 and the ball 7 roll, the ball 7 can be adhered to the lubricating oil on the sponge 4, the lubricating oil can lubricate the ball 7 and the screw body 1, the problem that the ball 7 and the screw body 1 are easily abraded under the long-time work of the ball screw 1 is avoided, when the nut 2 rotates, the extension ring 13 also rotates along with the rotation, the elastic stretching force of the spring 18 can enable the cleaning brush 17 to be always attached to the inside of the rolling groove 6, the rolling groove 6 can be cleaned, the phenomenon that the sliding of the ball 7 is resisted by dust attached to the rolling groove 6 is avoided, the rolling ball 7 can roll more smoothly, condensate is added into the cooling groove 19 through the condensation pipe 21, with tube cap 23 screw thread to condenser pipe 21 on, lead cold plate 22 and can be with leading-in to between lead screw body 1 and nut 2 of air conditioning, can play refrigerated effect to lead screw body 1, prevent that lead screw body 1 and nut 2 from being in work under the high temperature always and leading to the damage, prolonged ball 1 and nut 2's life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A high-precision ball screw for aviation comprises a screw body (1) and is characterized in that a nut (2) is sleeved outside the screw body (1), rolling grooves (6) are formed in the outer wall of the screw body (1) and the inner wall of the nut (2), balls (7) roll in the rolling grooves (6), an oil filling groove (8) is formed in the outer wall of the top of the nut (2), a sealing gasket (9) is clamped in the oil filling groove (8), a sealing cover (10) is in threaded connection with the inner wall of the oil filling groove (8), a clamping groove (11) is formed in the outer wall of the top of the sealing gasket (9), a clamping block (12) inserted in the clamping groove (11) is arranged on the outer wall of the bottom of the sealing cover (10), a cavity (3) communicated with the oil filling groove (8) is formed in the nut (2), and the inner wall of the bottom of the cavity (3) is provided with a sponge (4), the inner wall of the nut (2) is provided with through holes (5) which are distributed in an equidistant structure, and the sponge (4) is clamped inside the through holes (5).

2. The high-precision ball screw for aviation according to claim 1, wherein the outer walls of two sides of the nut (2) are welded with extension rings (13), and the inner wall of each extension ring (13) is provided with a plurality of movable grooves (14).

3. The ball screw with high precision for aviation according to claim 2, characterized in that the movable block (16) is connected inside the movable groove (14) in a sliding manner, and a cleaning brush (17) is welded on the outer wall of the bottom of the movable block (16).

4. The ball screw with high precision for aviation according to claim 2, wherein the guide rod (15) is welded on the inner wall of the movable groove (14), and the guide rod (15) is inserted in the movable block (16) in a sliding manner.

5. The ball screw with high precision for aviation according to claim 3, characterized in that the spring (18) is welded on the outer wall of the top of the movable block (16), and the spring (18) is sleeved outside the guide rod (15).

6. The ball screw with high precision for aviation according to claim 1, wherein the nut (2) is provided with a cooling groove (19) inside in a clamped manner, and a cold guide plate (22) is arranged on the inner wall of the cooling groove (19).

7. The ball screw of claim 1, characterized in that the outer walls of the top and the bottom of the nut (2) are provided with through grooves (20), the inner wall of each through groove (20) is welded with a condenser pipe (21) connected with the cooling groove (19), and the top end of each condenser pipe (21) is connected with a pipe cover (23) in a threaded manner.