CN212210718U

CN212210718U - Prevent changeing servo electronic jar

Info

Publication number: CN212210718U
Application number: CN202021290228.6U
Authority: CN
Inventors: 宋杰
Original assignee: Shanghai Ruikui Machinery Equipment Co ltd
Current assignee: Shanghai Ruikui Machinery Equipment Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2020-12-22
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses an prevent changeing servo electric cylinder, its technical scheme main points are: the turning device comprises a turning seat and a servo motor fixed on the turning seat, wherein a motor end driving wheel is fixed at the end part of a motor shaft of the servo motor, a lead screw end driven wheel is connected in the turning seat in a rotating mode, the motor end driving wheel and the lead screw end driven wheel are connected through an arc tooth synchronous belt in a transmission mode, a ball screw is fixed on the lead screw end driven wheel, the ball screw is connected in a cylinder body in a rotating mode, a piston is connected in the cylinder body in a sliding mode, an anti-rotation key is embedded outside the piston, the anti-rotation key and the piston are connected and fixed through an inner hexagonal bolt, a plurality of wear-resisting rings are further embedded outside the piston, and a front cover and a rear cover are fixed at two ends; this prevent changeing servo electric cylinder has good function, good structural stability and longer life of preventing changeing when using.

Description

Prevent changeing servo electronic jar

Technical Field

The utility model relates to an electric jar field, in particular to prevent changeing servo electric jar.

Background

The servo electric cylinder is a modularized product which is integrally designed with a servo motor and a ball screw, converts the rotary motion of the servo motor into linear motion, and simultaneously optimizes the servo motor, controls the number of accurate revolutions, controls the accurate rotating speed and controls the accurate torque, so that the servo electric cylinder is widely used.

The current chinese patent that bulletin number is CN105207406B discloses an electric jar, including electric jar cylinder body, electric jar lead screw, the fixed cover an of lead screw nut and electric jar mobile jib, electric jar cylinder body both ends are equipped with front end fixed block and tail end fixed block, and electric jar lead screw cover is equipped with the fixed cover a of lead screw nut, and the fixed cover a middle part outer wall of lead screw nut is equipped with the fixed cover guide block of lead screw nut, and the fixed cover guide block card of lead screw nut is established on the vertical draw-in groove of electric jar cylinder body, and electric jar mobile jib one end is connected with the fixed cover a of lead screw nut, and the electric jar mobile jib other end passes the front end fixed block.

The electric cylinder has the advantage of low noise; however, the above-mentioned electric cylinder still has some disadvantages, such as: its piston often has slight deflection when the lead screw stall, can cause the piston rod to have slight deflection, in addition, comparatively inconvenient when lubricating to electric jar inside, moreover, electric jar's life often is shorter.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing a prevent changeing servo electric cylinder to solve the problem of mentioning in the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions:

an anti-rotation servo electric cylinder comprises a rotation seat and a servo motor fixed on the rotation seat, wherein a motor end driving wheel is fixed at the end part of a motor shaft of the servo motor, a lead screw end driven wheel is connected in the rotation seat, the motor end driving wheel and the lead screw end driven wheel are connected through arc tooth synchronous belt transmission, a ball screw is fixed on the lead screw end driven wheel, the ball screw is connected in a cylinder body in a rotating way, a piston is connected in the cylinder body in a sliding way, an anti-rotation key is embedded outside the piston, the anti-rotation key and the piston are connected and fixed through an inner hexagonal bolt, a plurality of wear-resisting rings are further embedded and fixed outside the piston, a front cover and a rear cover are respectively fixed at two ends of the cylinder body, the ball screw is connected in the rear cover in a rotating way through two conical roller bearings, an oil nozzle is arranged in the rear cover, a piston rod is fixed in the piston.

Through adopting the above-mentioned technical scheme, this prevent changeing servo electric cylinder drives motor end action wheel through utilizing servo motor when using and rotates, and then drive lead screw end driven wheel rotation through the circular arc tooth hold-in range, thereby can drive ball and rotate, it slides to drive piston and piston rod flexible in the cylinder body, owing to prevent the setting of commentaries on classics key, so can prevent effectively that piston and piston rod from taking place to rotate, in addition owing to be provided with the glib talker in back lid department, so can conveniently lubricate the oiling operation through the glib talker, and because ball passes through tapered roller bearing and rotates in the back lid, and be provided with wear ring in the piston outside, so structural stability and life when can increase ball and rotate.

Preferably, the end of the piston rod is connected with a joint in a threaded manner, and the outer part of the joint is connected with a locking nut in a threaded manner.

Through adopting above-mentioned technical scheme, utilize to connect and lock nut can make things convenient for piston rod and external output interconnect.

Preferably, an adjusting ring is arranged between the ball screw and the rear cover, and a framework oil seal is arranged between the adjusting ring and the ball screw.

Through adopting above-mentioned technical scheme, adjustable ring and skeleton oil blanket can increase ball pivoted stability to can realize the oil blanket effect.

Preferably, the cylinder body is fixedly connected with the front cover and the rear cover through hexagon socket head cap bolts respectively.

Through adopting above-mentioned technical scheme, utilize hexagon socket head cap screw can conveniently realize that the dismantlement between cylinder body and protecgulum and the back lid is fixed.

Preferably, the end part of the ball screw is fixed in the screw end driven wheel through an expansion sleeve.

Through adopting above-mentioned technical scheme, the tight cover that expands can increase ball and fix the stability on the screw end follows the driving wheel.

Preferably, a shaft seal ring is arranged between the piston rod and the front cover.

Through adopting above-mentioned technical scheme, the shaft seal circle can increase the dynamic seal effect when the piston rod slides.

Preferably, a self-lubricating bearing is arranged between the piston rod and the front cover.

Through adopting above-mentioned technical scheme, from lubricated bearing can improve the dynamic seal effect between piston rod and the protecgulum.

Preferably, a buffer gasket is fixed at one end of the front cover close to the piston.

Through adopting above-mentioned technical scheme, the buffer spacer can carry out spacing and buffering when the piston slides to the maximum stroke.

To sum up, the utility model discloses mainly have following beneficial effect:

this prevent changeing servo electric cylinder drives motor end action wheel and rotates when using through utilizing servo motor, and then drive lead screw end through circular arc tooth hold-in range and rotate from the driving wheel, thereby can drive ball and rotate, it slides to drive piston and piston rod flexible in the cylinder body, owing to prevent the setting of commentaries on classics key, the event can prevent effectively that piston and piston rod from taking place to rotate, in addition owing to be provided with the glib talker in back lid department, the event can conveniently lubricate the oiling operation through the glib talker, and because ball passes through tapered roller bearing and rotates in the back lid, and be provided with wear ring in the piston outside, the event can increase structural stability and life when ball rotates.

Drawings

FIG. 1 is a schematic structural view of an anti-rotation servo electric cylinder;

fig. 2 is a structural sectional view of an anti-rotation servo electric cylinder;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

fig. 5 is an enlarged view at C in fig. 2.

Reference numerals: 1. a turning seat; 2. a servo motor; 3. a motor end driving wheel; 4. a screw end driven wheel; 5. a circular arc tooth synchronous belt; 6. a ball screw; 7. a cylinder body; 8. a piston; 9. a rotation prevention key; 10. a hexagon socket head cap screw; 11. a wear ring; 12. a front cover; 13. a rear cover; 14. a tapered roller bearing; 15. a nozzle tip; 16. a piston rod; 17. a joint; 18. locking the nut; 19. an adjusting ring; 20. framework oil seal; 21. expanding and tightening the sleeve; 22. a shaft seal ring; 23. self-lubricating the bearing; 24. and a buffer gasket.

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.

Referring to fig. 1, 2 and 3, an anti-rotation servo electric cylinder comprises a rotation seat 1 and a servo motor 2 fixed on the rotation seat 1, wherein a motor end driving wheel 3 is fixed at the end of a motor shaft of the servo motor 2, a screw end driven wheel 4 is rotatably connected in the rotation seat 1, the motor end driving wheel 3 and the screw end driven wheel 4 are in transmission connection through an arc tooth synchronous belt 5, a ball screw 6 is fixed on the screw end driven wheel 4, the ball screw 6 is rotatably connected in a cylinder body 7, a piston 8 is slidably connected in the cylinder body 7, an anti-rotation key 9 is embedded outside the piston 8, the anti-rotation key 9 and the piston 8 are fixedly connected through an inner hexagonal bolt 10, when the anti-rotation servo electric cylinder is used, the servo motor 2 is used for driving the motor end driving wheel 3 to rotate, and the screw end driven wheel 4 is further driven to rotate through the arc tooth synchronous belt 5, thereby can drive ball 6 and rotate, drive piston 8 and piston rod 16 and stretch out and draw back the slip in cylinder body 7, owing to prevent the setting of commentaries on classics key 9, so can prevent effectively that piston 8 and piston rod 16 from taking place to rotate.

Referring to fig. 2, 4 and 5, two wear-resistant rings 11 are further embedded and fixed outside the piston 8, a front cover 12 and a rear cover 13 are respectively fixed at two ends of the cylinder 7, the ball screw 6 is rotatably connected in the rear cover 13 through two tapered roller bearings 14, an oil nozzle 15 is arranged in the rear cover 13, and a piston rod 16 is fixed in the piston 8; since the oil nipple 15 is provided at the rear cap 13, the lubricating and oiling operation can be conveniently performed through the oil nipple 15, and since the ball screw 6 is rotated in the rear cap 13 through the tapered roller bearing 14 and the wear ring 11 is provided outside the piston 8, the structural stability and the service life of the ball screw 6 when rotated can be increased.

Referring to fig. 1 and 2, in which a joint 17 is threadedly coupled to an end of a piston rod 16, and a lock nut 18 is threadedly coupled to an outer portion of the joint 17, the connection of the piston rod 16 to an external output can be facilitated by the joint 17 and the lock nut 18.

Referring to fig. 2 and 4, an adjusting ring 19 is disposed between the ball screw 6 and the rear cover 13, a frame oil seal 20 is disposed between the adjusting ring 19 and the ball screw 6, and the adjusting ring 19 and the frame oil seal 20 can increase the stability of the rotation of the ball screw 6 and can achieve an oil seal effect; and the cylinder body 7, the front cover 12 and the rear cover 13 are respectively connected and fixed through the hexagon socket head cap bolts 10, and the cylinder body 7, the front cover 12 and the rear cover 13 can be conveniently detached and fixed by the hexagon socket head cap bolts 10.

Referring to fig. 2 and 5, in which the end of the ball screw 6 is fixed in the screw-end driven wheel 4 by the expansion sleeve 21, the expansion sleeve 21 can increase the stability of the ball screw 6 fixed on the screw-end driven wheel 4; wherein, a shaft seal ring 22 is arranged between the piston rod 16 and the front cover 12, and the shaft seal ring 22 can increase the dynamic sealing effect when the piston rod 16 slides; wherein, a self-lubricating bearing 23 is arranged between the piston rod 16 and the front cover 12, and the self-lubricating bearing 23 can improve the dynamic sealing effect between the piston rod 16 and the front cover 12; wherein, the front cover 12 is fixed with a buffer gasket 24 at one end close to the piston 8, and the buffer gasket 24 can limit and buffer when the piston 8 slides to the maximum stroke.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an prevent changeing servo electric cylinder, includes turning seat (1) and fixes servo motor (2) on turning seat (1), its characterized in that: a motor end driving wheel (3) is fixed at the end part of a motor shaft of the servo motor (2), a lead screw end driven wheel (4) is connected in the turning seat (1) in a rotating mode, the motor end driving wheel (3) and the lead screw end driven wheel (4) are in transmission connection through an arc tooth synchronous belt (5), a ball screw (6) is fixed on the lead screw end driven wheel (4), the ball screw (6) is connected in a cylinder body (7) in a rotating mode, a piston (8) is connected in the cylinder body (7) in a sliding mode, an anti-rotation key (9) is embedded and arranged on the outer portion of the piston (8), the anti-rotation key (9) and the piston (8) are fixedly connected through an inner hexagonal bolt (10), a plurality of wear-resisting rings (11) are further embedded and fixed on the outer portion of the piston (8), a front cover (12) and a rear cover (13) are respectively fixed at the two ends of, the ball screw (6) is rotatably connected in the rear cover (13) through two tapered roller bearings (14), an oil nozzle (15) is arranged in the rear cover (13), and a piston rod (16) is fixed in the piston (8).

2. An anti-rotation servo electric cylinder according to claim 1, characterized in that: the end part of the piston rod (16) is connected with a joint (17) in a threaded manner, and the outer thread of the joint (17) is connected with a locking nut (18).

3. An anti-rotation servo electric cylinder according to claim 1, characterized in that: the ball screw (6) with be provided with between back lid (13) adjustable ring (19), adjustable ring (19) with be provided with skeleton oil blanket (20) between ball screw (6).

4. An anti-rotation servo electric cylinder according to claim 1, characterized in that: the cylinder body (7) is fixedly connected with the front cover (12) and the rear cover (13) through hexagon socket head cap bolts (10).

5. An anti-rotation servo electric cylinder according to claim 1, characterized in that: the end part of the ball screw (6) is fixed in the screw end driven wheel (4) through an expansion sleeve (21).

6. An anti-rotation servo electric cylinder according to claim 1, characterized in that: a shaft sealing ring (22) is arranged between the piston rod (16) and the front cover (12).

7. An anti-rotation servo electric cylinder according to claim 1, characterized in that: and a self-lubricating bearing (23) is arranged between the piston rod (16) and the front cover (12).

8. An anti-rotation servo electric cylinder according to claim 1, characterized in that: and a buffer gasket (24) is fixed at one end of the front cover (12) close to the piston (8).