CN216279247U

CN216279247U - Fixed mounting structure of lead screw fixed at two ends

Info

Publication number: CN216279247U
Application number: CN202122703578.1U
Authority: CN
Inventors: 周国灿; 白辉明; 赖安业; 曹先强
Original assignee: FUJIAN CHENGGONG MACHINE TOOL CO LTD
Current assignee: FUJIAN CHENGGONG MACHINE TOOL CO LTD
Priority date: 2021-11-07
Filing date: 2021-11-07
Publication date: 2022-04-12
Anticipated expiration: 2031-11-07

Abstract

The utility model discloses a lead screw fixing and mounting structure with two fixed ends, which comprises a ball lead screw, wherein a box body is arranged in the middle of the outer diameter of the ball lead screw close to the bottom, a lead screw nut is connected to the ball lead screw in a threaded manner and is positioned in the box body, a transmission gear is fixedly connected to the outer diameter of the lead screw nut, and a second plane bearing is fixedly connected in the middle of the outer diameter of the transmission gear close to the bottom. According to the ball screw and the lead screw nut device, the transmission gear is arranged outside the lead screw nut, the lead screw nut inside the lead screw nut is driven by the bearings and the transmission gear to move up and down, the lead screw nut works on the ball screw, the cover plate is arranged at the top of the box body, the cover plate ensures absolute sealing inside the box body, the service lives of the ball screw and the lead screw nut can be greatly prolonged, the device is simple to operate, the working efficiency can be greatly improved, and the ball screw and the lead screw nut device are worth of being widely popularized.

Description

Fixed mounting structure of lead screw fixed at two ends

Technical Field

The utility model relates to the technical field of screw rod installation, in particular to a screw rod fixing and installing structure with two fixed ends.

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. 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.

Chinese patent 201310613176.X discloses a mounting structure, in particular a lead screw transmission mounting structure, specifically a transmission mounting structure for a lead screw in a vertical lathe. According to the technical scheme provided by the utility model, the screw rod transmission mounting structure comprises a cross beam; a bracket is fixedly arranged at one end of the cross beam, and an installation through hole is formed in the cross beam; a screw rod is arranged on the cross beam, and the screw rod is provided with a first screw rod end and a second screw rod end corresponding to the first screw rod end; a first screw rod end of the screw rod is arranged in the bracket, the screw rod penetrates through the mounting through hole of the cross beam, and a second screw rod end of the screw rod is positioned on the outer side of the other end of the cross beam; the screw rod can rotate relative to the cross beam and the bracket. This patent screw-nut does not possess sealed effect, and long-term use can cause inside ash and the rusty condition that falls, and life shortens greatly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a screw rod fixing and mounting structure with two fixed ends.

In order to achieve the purpose, the utility model adopts the following technical scheme: a screw rod fixing and mounting structure with two fixed ends comprises a ball screw, wherein a first flange is fixedly connected to the top of the outer diameter of the ball screw, a first locking nut is fixedly connected to the top of the right side of the first flange and rotatably connected with the ball screw, a first fixing support is fixedly connected to the outer diameter of the first flange, a first pad is fixedly connected to the bottom of the first fixing support and rotatably connected with the ball screw, a box body is arranged in the middle of the outer diameter of the ball screw close to the bottom, a screw nut is in threaded connection with the ball screw and positioned in the box body, a transmission gear is fixedly connected to the outer diameter of the screw nut, a second flat bearing is fixedly connected to the middle of the outer diameter of the transmission gear close to the bottom, a second pad is fixedly connected to the top of the second flat bearing and rotatably connected with the transmission gear, the adjusting device comprises a box body, a first flat bearing, a first cushion, a second cushion, a first flange plate, a second fixing support, a third cushion, a second key and a transmission gear, wherein the top of the second cushion is fixedly connected with the second needle bearing, the second needle bearing is rotatably connected with the transmission gear, the middle of the outer diameter of the transmission gear is rotatably connected with the first needle bearing by the top, the top of the first needle bearing is fixedly connected with a spacer bush and the spacer bush is rotatably connected with the transmission gear, the top of the outer diameter of the transmission gear is rotatably connected with the first flat bearing, the top of the lead screw nut is fixedly connected with the third locking nut, the top of the box body is fixedly connected with an adjusting cushion, the top of the adjusting cushion is fixedly connected with the second flange plate, the bottom of the outer diameter of the ball screw is slidably connected with the second fixing support, the right side of the bottom of the second fixing support is fixedly connected with the third cushion and the third cushion is positioned on the outer diameter of the ball screw, and the middle position of the inner wall of the transmission gear on the left side is provided with the second key.

As a further description of the above technical solution:

and a first key is arranged on the inner diameter of the right side of the first flange plate.

As a further description of the above technical solution:

and a second locking nut is fixedly connected to the bottom of the first pad and is in sliding connection with the ball screw.

As a further description of the above technical solution:

the two ends of the ball screw penetrate through the box body and are connected with the box body in a sliding mode.

As a further description of the above technical solution:

the bottom of the outer diameter of the transmission gear is fixedly connected with an oil seal, and the oil seal is fixedly connected with the box body.

As a further description of the above technical solution:

and a cover plate is arranged at the top of the second flange plate.

As a further description of the above technical solution:

and the bottom of the third pad is rotatably connected with a fourth locking nut which is connected with the ball screw in a sliding manner.

As a further description of the above technical solution:

and a tensioning inclined block is arranged in the middle of the inner wall of the left side of the second fixed support and close to the bottom.

The utility model has the following beneficial effects:

1. according to the utility model, the first fixing support and the second fixing support are arranged at the top and the bottom of the ball screw, the fixing supports can limit the ball screw with the inner diameter, the falling-off phenomenon of the ball screw with the inner diameter can be effectively prevented, the first locking nut is arranged at the top of the first flange, the fourth locking nut is arranged at the bottom of the third flange, the ball screw with the inner diameter can be locked, the screw nut is connected onto the ball screw in a threaded manner, the outer diameter of the screw nut is provided with the box body, the bottom of the box body is provided with the oil seal, the oil seal can guarantee the sealing property inside the box body, and the use condition that the inner screw nut is affected by dust falling and dirt after long-term use can be prevented.

2. According to the ball screw and the lead screw nut device, the transmission gear is arranged outside the lead screw nut, the lead screw nut inside the lead screw nut is driven by the bearings and the transmission gear to move up and down, the lead screw nut works on the ball screw, the cover plate is arranged at the top of the box body, the cover plate ensures absolute sealing inside the box body, the service lives of the ball screw and the lead screw nut can be greatly prolonged, the device is simple to operate, the working efficiency can be greatly improved, and the ball screw and the lead screw nut device are worth of being widely popularized.

Drawings

FIG. 1 is a structural diagram of a screw rod fixing and mounting structure with two fixed ends according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1;

fig. 4 is an enlarged view at C in fig. 1.

Illustration of the drawings:

1. a ball screw; 2. a first lock nut; 3. a first flange plate; 4. a first key; 5. a first fixed bracket; 6. a first pad; 7. a second lock nut; 8. a third lock nut; 9. a cover plate; 10. a second flange plate; 11. an adjustment pad; 12. a first planar bearing; 13. a spacer sleeve; 14. a first needle bearing; 15. a transmission gear; 16. a second needle bearing; 17. a second pad; 18. a second planar bearing; 19. Oil sealing; 20. a box body; 21. a second fixed bracket; 22. a third pad; 23. a fourth lock nut; 24. Tensioning the oblique block; 25. a second key; 26. and a screw nut.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: a screw rod fixing and mounting structure with two fixed ends comprises a ball screw rod 1, a first flange 3 is fixedly connected to the top of the outer diameter of the ball screw rod 1, a first locking nut 2 is fixedly connected to the top of the right side of the first flange 3, the first locking nut 2 is rotatably connected with the ball screw rod 1, a first fixing bracket 5 is fixedly connected to the outer diameter of the first flange 3, a first pad 6 is fixedly connected to the bottom of the first fixing bracket 5, the first pad 6 is rotatably connected with the ball screw rod 1, a box body 20 is arranged at the position close to the bottom of the outer diameter of the ball screw rod 1, a screw nut 26 is in threaded connection with the ball screw rod 1, the screw nut 26 is positioned inside the box body 20, a transmission gear 15 is fixedly connected to the outer diameter of the screw nut 26, a second plane bearing 18 is fixedly connected to the position close to the bottom of the outer diameter of the transmission gear 15, a second pad 17 is fixedly connected to the top of the second plane bearing 18, and the second pad 17 is rotatably connected with the transmission gear 15, the top of the second pad 17 is fixedly connected with a second needle bearing 16, the second needle bearing 16 is rotationally connected with a transmission gear 15, the middle of the outer diameter of the transmission gear 15 close to the top is rotationally connected with a first needle bearing 14, the top of the first needle bearing 14 is fixedly connected with a spacer 13, the spacer 13 is rotationally connected with the transmission gear 15, the top of the outer diameter of the transmission gear 15 is rotationally connected with a first plane bearing 12, the top of a screw nut 26 is fixedly connected with a third locking nut 8, the top of a box body 20 is fixedly connected with an adjusting pad 11, the top of the adjusting pad 11 is fixedly connected with a second flange 10, the bottom of the outer diameter of the ball screw 1 is slidably connected with a second fixed support 21, the right side of the bottom of the second fixed support 21 is fixedly connected with a third pad 22, the third pad 22 is positioned on the outer diameter of the ball screw 1, the middle position of the inner wall of the transmission gear 15 on the left side is provided with a second key 25, the top and the bottom of the ball screw 1 are provided with a first fixing support 5 and a second fixing support 21, the fixing supports can prevent the ball screw 1 with the inner diameter from being limited, the phenomenon that the ball screw 1 with the inner diameter can be effectively prevented from falling off is avoided, the top of the first flange plate 3 is provided with a first locking nut 2, the bottom of the third pad 22 is provided with a fourth locking nut 23, the ball screw 1 with the inner diameter can be locked, the ball screw 1 is connected with a screw nut 26 through threads, the outer diameter of the screw nut 26 is provided with a box body 20, the bottom of the box body 20 is provided with an oil seal 19, the oil seal 19 can ensure the sealing performance inside the box body 20, and the use condition that the internal screw nut 26 is affected by falling ash and stains in long-term use can be prevented.

The right inner diameter of the first flange 3 is provided with a first key 4, the bottom of the first pad 6 is fixedly connected with a second locking nut 7, the second locking nut 7 is connected with a ball screw 1 in a sliding way, two ends of the ball screw 1 penetrate through a box body 20 and are connected with the box body 20 in a sliding way, the bottom of the outer diameter of the transmission gear 15 is fixedly connected with an oil seal 19, the oil seal 19 is fixedly connected with the box body 20, the top of the second flange 10 is provided with a cover plate 9, the bottom of the third pad 22 is rotatably connected with a fourth locking nut 23, the fourth locking nut 23 is connected with the ball screw 1 in a sliding way, the middle of the left inner wall of the second fixed support 21 is provided with a tensioning inclined block 24 close to the bottom, the transmission gear 15 is arranged outside the screw nut 26, the internal screw nut 26 moves up and down under the driving of each bearing and the transmission gear 15, the screw nut 26 works on the ball screw 1, the top of the box body 20 is provided with the cover plate 9, the cover plate 9 ensures the absolute sealing inside the box body 20, the service lives of the ball screw 1 and the screw nut 26 can be greatly prolonged, the equipment is simple to operate, and the working efficiency can be greatly improved.

The working principle is as follows: the top and the bottom of the ball screw 1 are both provided with a first fixing support 5 and a second fixing support 21, the fixing supports can limit the ball screw 1 with the inner diameter, and can effectively prevent the ball screw 1 with the inner diameter from falling off, the top of the first flange 3 is provided with a first locking nut 2, the bottom of the third gasket 22 is provided with a fourth locking nut 23 which can lock the ball screw 1 with the inner diameter, the ball screw 1 is in threaded connection with a screw nut 26, the outer diameter of the screw nut 26 is provided with a box body 20, the bottom of the box body 20 is provided with an oil seal 19, the oil seal 19 can ensure the sealing property in the box body 20, can prevent the use condition of the screw nut 26 in the box body 20 from being influenced by dust falling and dirt after long-term use, the transmission gear 15 is arranged outside the screw nut 26, and the screw nut 26 in the box body can move up and down under the driving of each bearing and the transmission gear 15, realize that screw-nut 26 carries out work on ball screw 1, box 20 top is provided with apron 9, and the inside absolute sealed of box 20 is ensured to apron 9, can prolong ball screw 1 and screw-nut 26 life greatly, and this equipment easy operation can promote work efficiency greatly.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a fixed mounting structure of lead screw of both ends is fixed, includes ball screw (1), its characterized in that: the ball screw is characterized in that a first flange plate (3) is fixedly connected to the top of the outer diameter of the ball screw (1), a first locking nut (2) is fixedly connected to the top of the right side of the first flange plate (3), the first locking nut (2) is rotatably connected with the ball screw (1), a first fixing support (5) is fixedly connected to the outer diameter of the first flange plate (3), a first pad (6) is fixedly connected to the bottom of the first fixing support (5), the first pad (6) is rotatably connected with the ball screw (1), a box body (20) is arranged in the middle of the outer diameter of the ball screw (1) near the bottom, a screw nut (26) is in threaded connection with the ball screw (1), the screw nut (26) is located inside the box body (20), a transmission gear (15) is fixedly connected to the outer diameter of the screw nut (26), a second plane bearing (18) is fixedly connected to the middle of the outer diameter of the transmission gear (15) near the bottom, the top of the second plane bearing (18) is fixedly connected with a second pad (17), the second pad (17) is rotatably connected with the transmission gear (15), the top of the second pad (17) is fixedly connected with a second needle bearing (16), the second needle bearing (16) is rotatably connected with the transmission gear (15), the middle of the outer diameter of the transmission gear (15) close to the top is rotatably connected with a first needle bearing (14), the top of the first needle bearing (14) is fixedly connected with a spacer bush (13), the spacer bush (13) is rotatably connected with the transmission gear (15), the top of the outer diameter of the transmission gear (15) is rotatably connected with a first plane bearing (12), the top of the lead screw nut (26) is fixedly connected with a third locking nut (8), the top of the box body (20) is fixedly connected with an adjusting pad (11), the top of the adjusting pad (11) is fixedly connected with a second flange plate (10), ball screw (1) external diameter bottom position sliding connection has second fixed bolster (21), second fixed bolster (21) bottom right side fixedly connected with third pad (22) and third pad (22) are located ball screw (1) external diameter, and the left side drive gear (15) inner wall intermediate position is provided with second key (25).

2. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: and a first key (4) is arranged on the inner diameter of the right side of the first flange plate (3).

3. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: the bottom of the first pad (6) is fixedly connected with a second locking nut (7), and the second locking nut (7) is connected with the ball screw (1) in a sliding mode.

4. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: both ends of the ball screw (1) penetrate through the box body (20) and are connected with the box body (20) in a sliding mode.

5. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: the bottom of the outer diameter of the transmission gear (15) is fixedly connected with an oil seal (19), and the oil seal (19) is fixedly connected with a box body (20).

6. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: and a cover plate (9) is arranged at the top of the second flange plate (10).

7. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: the bottom of the third pad (22) is rotatably connected with a fourth locking nut (23), and the fourth locking nut (23) is connected with the ball screw (1) in a sliding manner.

8. The fixed mounting structure of lead screw of both ends fixed according to claim 1, characterized in that: and a tensioning inclined block (24) is arranged in the middle of the inner wall of the left side of the second fixing support (21) close to the bottom.