CN213072335U

CN213072335U - Heavy-load type electric cylinder with planetary roller screw rod

Info

Publication number: CN213072335U
Application number: CN202022111579.2U
Authority: CN
Inventors: 施翠鸣
Original assignee: Suzhou Yuancheng Mingchuang Electromechanical Equipment Co ltd
Current assignee: Suzhou Yuancheng Mingchuang Electromechanical Equipment Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-04-27
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses an with electronic jar of planet roller lead screw heavy load type, including piston cylinder shell, synchronizing wheel shell, motor housing, the right flank fixed connection piston rod shell of piston cylinder shell, the inner wall sliding connection of piston rod shell has the piston rod, the inner wall of piston rod shell is provided with the dust ring, the inner wall fixedly connected with of piston cylinder shell prevents the bull stick, the lower surface sliding connection of preventing the bull stick has screw-nut, screw-nut's internal surface threaded connection has planet roller bearing lead screw, the surface of planet roller bearing lead screw and the left that is located screw-nut rotate and be connected with the bearing. The utility model discloses in, set up planet roller lead screw, prevent the bull stick, numerous contact wires make planet roller lead screw's bearing capacity very strong, have set up the dust ring in the position of piston rod, and the dust ring can effectually be with isolated the opening in the jar with external to guarantee the clean in the jar, durable.

Description

Heavy-load type electric cylinder with planetary roller screw rod

Technical Field

The utility model relates to an electronic jar technical field especially relates to an electronic jar of heavy load type with planet roller lead screw.

Background

The electric cylinder is a modularized product which is designed by integrating a servo motor and a lead screw, the rotary motion of the servo motor is converted into linear motion, meanwhile, the best advantage of the servo motor is controlled by accurate rotating speed, the accurate rotating speed is controlled, accurate torque control is converted into accurate speed control, accurate position control and accurate thrust control, a brand new revolutionary product of a high-precision linear motion series is realized, the planetary roller lead screw is a mechanism which converts the rotary motion into the linear motion, a rolling element between a nut and the lead screw is a threaded roller, and a plurality of contact wires enable the bearing capacity of the planetary roller lead screw to be very strong.

In the prior art, because the existing electric cylinder has a complex structure and has higher requirements on the processing precision and the installation precision of parts, the electric cylinder cannot meet the design and use requirements, particularly the contact position of an electric push rod and the outside, and the use of the electric cylinder is influenced if the electric push rod is not well treated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a heavy-load electric cylinder with a planet roller screw rod.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a heavy-load electric cylinder with a planetary roller screw rod comprises a piston cylinder shell, a synchronizing wheel shell and a motor shell, wherein the right side face of the piston cylinder shell is fixedly connected with the piston rod shell, the inner wall of the piston rod shell is connected with a piston rod in a sliding mode, the inner wall of the piston rod shell is provided with a dust ring, the inner wall of the piston cylinder shell is fixedly connected with an anti-rotation rod, the lower surface of the anti-rotation rod is connected with a screw nut in a sliding mode, the inner surface of the screw nut is connected with a planetary roller screw rod in a threaded mode, the outer surface of the planetary roller screw rod is rotatably connected with a bearing in the left side of the screw nut, a first buffer block is arranged on the inner wall of the piston cylinder shell and in the left side;

a first synchronizing wheel, a second synchronizing wheel and a synchronous belt are arranged in the synchronizing wheel shell, the synchronous belt is positioned between the outer surface of the second synchronizing wheel and the outer surface of the second synchronizing wheel, and the right side surface of the second synchronizing wheel is fixedly connected with a connecting rod;

the motor is arranged in the motor shell, and the output end of the motor is provided with a speed reducer.

As a further description of the above technical solution:

the left side face of the piston cylinder shell is fixedly connected with the synchronizing wheel shell, the right side face of the synchronizing wheel shell is fixedly connected with the motor shell, and the piston cylinder shell is located below the motor shell.

As a further description of the above technical solution:

the left end of the planetary roller lead screw is fixedly connected with the connecting rod.

As a further description of the above technical solution:

one side of the speed reducer, which is far away from the motor, is fixedly connected with the first synchronizing wheel.

As a further description of the above technical solution:

the inner surface of the dust ring is connected with the piston rod in a sliding mode.

As a further description of the above technical solution:

the outer surface of the connecting rod is rotatably connected with the shell of the synchronizing wheel.

As a further description of the above technical solution:

and an output shaft of the speed reducer is rotationally connected with the shell of the synchronizing wheel.

The utility model discloses following beneficial effect has:

1. compared with the prior art, the heavy-load electric cylinder with the planet roller screw rod is provided with the planet roller screw rod and the anti-rotation rod, the rotary motion is converted into the linear motion mechanism, the rolling element between the nut and the screw rod is a threaded roller, and the planet roller screw rod has very strong bearing capacity due to a plurality of contact lines.

2. Compared with the prior art, the planetary roller screw heavy-load type electric cylinder is provided with the dustproof ring through the position of the piston rod, and the dustproof ring can effectively isolate the interior of the cylinder from the outside, so that the cleanness of the interior of the cylinder is ensured, and the electric cylinder is durable.

Drawings

Fig. 1 is a front view of a heavy-load electric cylinder using a planetary roller screw 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 in fig. 1.

Illustration of the drawings:

1. a piston cylinder housing; 2. a synchronizing wheel housing; 3. a motor housing; 4. a piston rod; 5. a piston rod housing; 6. a rotation prevention lever; 7. a motor; 8. a first synchronizing wheel; 9. a speed reducer; 10. a synchronous belt; 11. a second synchronizing wheel; 12. a connecting rod; 13. a bearing; 14. a first buffer block; 15. a feed screw nut; 16. a planetary roller screw; 17. a second buffer block; 18. a dust ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a heavy-load electric cylinder with a planetary roller screw rod comprises a piston cylinder shell 1, a synchronizing wheel shell 2 and a motor shell 3, wherein the right side face of the piston cylinder shell 1 is fixedly connected with a piston rod shell 5, the inner wall of the piston rod shell 5 is slidably connected with a piston rod 4, the inner wall of the piston rod shell 5 is provided with a dust ring 18, the inner surface of the dust ring 18 is slidably connected with the piston rod 4, the inner wall of the piston cylinder shell 1 is fixedly connected with an anti-rotation rod 6, the lower surface of the anti-rotation rod 6 is slidably connected with a screw rod nut 15, the inner surface of the screw rod nut 15 is in threaded connection with a planetary roller screw rod 16, the left end of the planetary roller screw rod 16 is fixedly connected with a connecting rod 12, the outer surface of the planetary roller screw rod 16 is rotatably connected with a bearing 13 positioned at the left side of the screw rod nut 15, the inner wall of the piston cylinder shell 1, the left side surface of the piston cylinder shell 1 is fixedly connected with the synchronizing wheel shell 2, the right side surface of the synchronizing wheel shell 2 is fixedly connected with the motor shell 3, and the piston cylinder shell 1 is positioned below the motor shell 3;

a first synchronizing wheel 8, a second synchronizing wheel 11 and a synchronous belt 10 are arranged in the synchronizing wheel shell 2, the synchronous belt 10 is positioned between the outer surface of the second synchronizing wheel 8 and the outer surface of the second synchronizing wheel 11, the right side surface of the second synchronizing wheel 11 is fixedly connected with a connecting rod 12, and the outer surface of the connecting rod 12 is rotatably connected with the synchronizing wheel shell 2;

the motor 7 is arranged in the motor shell 3, the speed reducer 9 is arranged at the output end of the motor 7, one side, far away from the motor 7, of the speed reducer 9 is fixedly connected with the first synchronizing wheel 8, and the output shaft of the speed reducer 9 is rotatably connected with the synchronizing wheel shell 2.

The working principle is as follows: when the heavy-load type electric cylinder with the planetary roller screw rod is used, the heavy-load type electric cylinder with the planetary roller screw rod is placed at a proper position, the motor 7 is started, the motor 7 decelerates under the action of the speed reducer 9 to drive the first synchronizing wheel 8 to rotate, the first synchronizing wheel 8 drives the second synchronizing wheel 11 to rotate through the synchronous belt 10, the second synchronizing wheel drives the connecting rod 12 to rotate, the connecting rod 12 drives the planetary roller screw rod 16 to rotate, at the moment, the outer surface screw nut 15 of the planetary roller screw rod 16 pushes rightwards, the piston rod 4 is further pushed rightwards, and pushing of the heavy-load type is finished.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides an with electronic jar of planet roller lead screw heavy load type, includes piston cylinder shell (1), synchronizing wheel shell (2), motor housing (3), its characterized in that: the right side surface of the piston cylinder shell (1) is fixedly connected with a piston rod shell (5), the inner wall of the piston rod shell (5) is connected with a piston rod (4) in a sliding way, the inner wall of the piston rod shell (5) is provided with a dustproof ring (18), the inner wall of the piston cylinder shell (1) is fixedly connected with an anti-rotation rod (6), the lower surface of the anti-rotation rod (6) is connected with a screw rod nut (15) in a sliding way, the inner surface of the screw nut (15) is connected with a planetary roller screw (16) in a threaded manner, the outer surface of the planetary roller lead screw (16) is rotatably connected with a bearing (13) on the left of the lead screw nut (15), a first buffer block (14) is arranged on the inner wall of the piston cylinder shell (1) and on the left side of the screw rod nut (15), a second buffer block (17) is arranged on the left side surface of the piston rod shell (5);

a first synchronous wheel (8), a second synchronous wheel (11) and a synchronous belt (10) are arranged in the synchronous wheel shell (2), the synchronous belt (10) is positioned between the outer surface of the second synchronous wheel (11) and the outer surface of the second synchronous wheel (11), and the right side surface of the second synchronous wheel (11) is fixedly connected with a connecting rod (12);

the motor is characterized in that a motor (7) is arranged inside the motor shell (3), and a speed reducer (9) is arranged at the output end of the motor (7).

2. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: the left side face of the piston cylinder shell (1) is fixedly connected with the synchronizing wheel shell (2), the right side face of the synchronizing wheel shell (2) is fixedly connected with the motor shell (3), and the piston cylinder shell (1) is located below the motor shell (3).

3. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: the left end of the planetary roller lead screw (16) is fixedly connected with the connecting rod (12).

4. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: one side of the speed reducer (9) far away from the motor (7) is fixedly connected with the first synchronous wheel (8).

5. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: the inner surface of the dust ring (18) is connected with the piston rod (4) in a sliding way.

6. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: the outer surface of the connecting rod (12) is rotationally connected with the synchronizing wheel shell (2).

7. The heavy-load electric cylinder with the planetary roller screw according to claim 1, wherein: and an output shaft of the speed reducer (9) is rotationally connected with the synchronizing wheel shell (2).