CN217135304U

CN217135304U - Internal rotation-preventing mechanism of electric cylinder

Info

Publication number: CN217135304U
Application number: CN202122854866.7U
Authority: CN
Inventors: 钟习飞
Original assignee: Suzhou Feijinrui Precision Machinery Co ltd
Current assignee: Suzhou Feijinrui Precision Machinery Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-08-05
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses an interior rotation-proof mechanism of electric jar, including piston head, bearing housing and cylinder body overcoat, the electric jar main part is formed by cylinder body overcoat and piston rod combination, the inside wall both sides department placed in the middle of the cylinder body overcoat all are equipped with the guide slot, the piston head sets up the one end at the piston rod, the both sides middle part of piston head is equipped with prevents changeing the draw-in groove, prevent changeing draw-in groove and guide slot sliding connection. The utility model discloses an one end of piston rod is equipped with the piston head, and the both sides of piston head are equipped with prevents changeing the draw-in groove, department placed in the middle all is equipped with the guide slot in the inside both sides of cylinder body overcoat, and prevent changeing draw-in groove and the solid sliding connection of guide slot card, can be to the piston rod in flexible process through it, prevent changeing the protection, and this kind prevents that slewing mechanism is direct to set up to a body structure with the piston head, need not the independent design and prevents changeing the mechanism, high durability and convenient use, the both sides of bearing housing are equipped with the inlay dop, and be equipped with fixed side ear at the inside wall of cylinder body overcoat, through the installation dismantlement of fixed side ear convenience and bearing housing.

Description

Internal rotation-preventing mechanism of electric cylinder

Technical Field

The utility model relates to a prevent the relevant field of favourable turn, specifically be an interior favourable turn that prevents of electric jar constructs.

Background

The anti-rotation mechanism of the electric cylinder is used for anti-rotation protection of a piston rod in the electric cylinder, 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, and meanwhile, the optimal advantages of the servo motor, namely accurate rotation speed control, accurate rotation speed control and accurate torque control, are converted into accurate speed control, accurate position control and accurate thrust control, and a brand new revolutionary product of a high-precision linear motion series is realized.

The structure setting of the interior anti-rotation mechanism of the electric cylinder at the present stage is relatively complicated, the anti-rotation mechanism needs to be completed by matching more accessories, the installation and the disassembly are inconvenient, the piston rod stretching process is limited and not stable enough, and the maintenance and the replacement at the later stage are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an interior rotation-proof mechanism of electric jar to the structure setting of the interior rotation-proof mechanism of the electric jar that provides among the above-mentioned background art is comparatively complicated, needs the more accessory of collocation to accomplish and prevents rotation-proof mechanism, and the installation dismantlement is inconvenient, at the flexible process of piston rod, spacing stable inadequately, the maintenance in inconvenient later stage and the problem of change.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an interior rotation-proof mechanism of electric cylinder, includes piston head, bearing housing and cylinder body overcoat, the electric cylinder main part is formed by cylinder body overcoat and piston rod combination, the inside wall both sides department placed in the middle of the cylinder body overcoat all are equipped with the guide slot, the piston head sets up the one end at the piston rod, the both sides middle part of piston head is equipped with prevents changeing the draw-in groove, prevent changeing draw-in groove and guide slot sliding connection, the bearing housing sets up the inboard department of leaning on down at the cylinder body overcoat.

In a further embodiment, the hydraulic cylinder further comprises a screw rod, the screw rod is installed in an inner cavity of the piston rod, an inner thread is arranged in the inner cavity of the piston rod, the screw rod is in transmission connection with an inner cavity screw rod of the piston rod, and a transmission belt wheel is arranged at one end of the screw rod.

In a further embodiment, the device further comprises a transmission case, wherein a motor is arranged at the top of the transmission case, a driving belt wheel is arranged at the main shaft connecting end of the motor, and the driving belt wheel is in transmission connection with the transmission belt wheel through a transmission belt.

In a further embodiment, still include and connect the ear frame, the middle part of connecting the ear frame is equipped with the mounting hole, the one end of connecting the ear frame is equipped with the connector, the connector is inlayed fixedly with the one end of piston rod, it sets up to U type mouth structure to connect ear frame side.

In a further embodiment, the bearing housing comprises a collet chuck and a ball bearing;

the embedded chuck is of a special-shaped structure, clamping teeth are arranged on two sides of the end of the embedded chuck, a fixed side lug of an integrated structure is arranged on the inner side of the cylinder body outer sleeve, and an embedded groove capable of being meshed with the embedded chuck is formed in the inner side of the fixed side lug;

the ball bearing is arranged in the middle of the bearing sleeve, and the screw rod is rotatably connected with the ball bearing.

In a further embodiment, the middle part of the end surface of the piston head is provided with a screw hole, one end of the piston rod is provided with a screw head, and the screw head is fixed with the screw hole in the middle part of the piston head in a threaded manner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an one end of piston rod is equipped with the piston head, and the both sides of piston head are equipped with prevents changeing the draw-in groove, and the department placed in the middle in the inside both sides of cylinder body overcoat all is equipped with the guide slot, and prevents changeing draw-in groove and the solid sliding connection of guide slot card, can prevent changeing the protection to the piston rod through it in flexible process, and this kind prevents that slewing mechanism directly sets up to a body structure with the piston head, need not the independent design and prevents slewing mechanism, convenient to use.

2. The utility model discloses a both sides of bearing housing are equipped with inlays the dop, and are equipped with fixed side ear at the inside wall of cylinder body overcoat, and the installation through fixed side ear is convenient to be dismantled with the bearing housing, makes things convenient for the installation of screw rod.

Drawings

Fig. 1 is a schematic structural view of an internal rotation preventing mechanism of an electric cylinder according to the present invention;

FIG. 2 is a cross-sectional view of the piston head and cylinder jacket of the present invention;

fig. 3 is a top view of the bearing housing of the present invention;

fig. 4 is a schematic structural view of the part a of the present invention.

In the figure: 1. connecting the ear frames; 2. a connector; 3. an electric cylinder main body; 4. a piston rod; 5. a drive pulley; 6. a motor; 7. a driving pulley; 8. a transmission case; 9. a guide groove; 10. a piston head; 11. a bearing housing; 12. a screw; 13. fixing the side ear; 14. embedding a chuck; 15. the cylinder body is sleeved with a sleeve; 16. an anti-rotation clamping groove; 17. embedding a groove; 18. Ball bearings.

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.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides an interior anti-rotation mechanism of electric cylinder, includes piston head 10, bearing housing 11 and cylinder body overcoat 15, and electric cylinder main part 3 is formed by cylinder body overcoat 15 and the combination of piston rod 4, and the inside wall both sides department placed in the middle of cylinder body overcoat 15 all are equipped with guide slot 9, and piston head 10 sets up the one end at piston rod 4, and the both sides middle part of piston head 10 is equipped with prevents changeing draw-in groove 16, prevents changeing draw-in groove 16 and guide slot 9 sliding connection, and bearing housing 11 sets up the inboard department of leaning on the lower position of cylinder body overcoat 15.

The piston head 10 slides on the inner side of the cylinder body outer sleeve 15, so that the piston rod 4 can stretch and retract more stably, and can stably slide with the anti-rotation clamping grooves 16 on two sides of the piston head 10 through the guide grooves 9, so that the piston rod 4 can be prevented from rotating and extending.

Further, the telescopic cylinder further comprises a screw rod 12, the screw rod 12 is installed in the inner cavity of the piston rod 4, inner threads are arranged in the inner cavity of the piston rod 4, the screw rod 12 is in screw rod transmission connection with the inner cavity of the piston rod 4, a transmission belt wheel 5 is arranged at one end of the screw rod 12, and the piston rod 4 is automatically controlled to stretch out and draw back in the cylinder body outer sleeve 15 through the screw rod transmission relation between the screw rod 12 and the piston rod 4.

Further, still include transmission case 8, the top of transmission case 8 is equipped with motor 6, and the main shaft link of motor 6 is equipped with driving pulley 7, and driving pulley 7 passes through the drive belt to be connected with driving pulley 5 transmission, drives screw rod 12 through motor 6 by driving pulley 7 and driving pulley 5 and rotates.

Further, still including connecting ear rack 1, the middle part of connecting ear rack 1 is equipped with the mounting hole, and the one end of connecting ear rack 1 is equipped with connector 2, and connector 2 is inlayed fixedly with the one end of piston rod 4, and connecting ear rack 1 side sets up to U type mouth structure, is connected connecting ear rack 1 and the one end of piston rod 4 through connector 2 convenience.

Further, the bearing housing 11 includes an insert chuck 14 and a ball bearing 18;

the embedded chuck 14 is of a special-shaped structure, the two sides of the end of the embedded chuck 14 are provided with clamping teeth, the inner side of the cylinder body outer sleeve 15 is provided with a fixed side lug 13 of an integrated structure, the fixed side lug 13 is conveniently connected and fixed with the embedded chuck 14 on the two sides of the bearing sleeve 11, and the inner side of the fixed side lug 13 is provided with an embedded groove 17 which can be meshed with the embedded chuck 14;

a ball bearing 18 is provided in the middle of the bearing housing 11, and the screw 12 is rotatably connected with the ball bearing 18.

Furthermore, a screw hole is formed in the middle of the end face of the piston head 10, a screw head is arranged at one end of the piston rod 4, the screw head is fixed with the screw hole in the middle of the piston head 10 in a threaded mode, and the piston head 10 is conveniently and fixedly connected with the piston rod 4 through the screw hole.

The working principle is as follows: when the telescopic cylinder is used, the anti-rotation clamping grooves 16 on the two sides of the piston head 10 are connected with the guide grooves 9 in a sliding and clamping mode, when the piston rod 4 stretches in the cylinder outer sleeve 15, the motor 6 drives the driving belt wheel 7 to rotate, the driving belt wheel 7 and the driving belt wheel 5 are driven by a driving belt, the automatic control screw 12 is driven to rotate, the screw 12 is driven by a threaded cavity screw rod in an inner cavity of the piston rod 4, the automatic control piston rod 4 stretches in the cylinder outer sleeve 15, the piston rod 4 slides with the guide grooves 9 through the anti-rotation clamping grooves 16 on the two sides of the piston head 10, the stretching stability of the piston rod 4 is guaranteed, the connecting lug frame 1 is conveniently connected with a workpiece needing to be driven, the screw 12 can be rotatably installed through the bearing sleeve 11, and the embedding chucks 14 on the two sides of the bearing sleeve 11 are conveniently embedded and fixed with the fixed side lugs 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an interior anti-rotation mechanism of electric cylinder, includes piston head (10), bearing housing (11) and cylinder body overcoat (15), its characterized in that: electric cylinder main part (3) are formed by cylinder body overcoat (15) and piston rod (4) combination, the inside wall both sides department placed in the middle of cylinder body overcoat (15) all are equipped with guide slot (9), piston head (10) set up the one end at piston rod (4), the both sides middle part of piston head (10) is equipped with prevents changeing draw-in groove (16), prevent changeing draw-in groove (16) and guide slot (9) sliding connection, bearing housing (11) set up the inboard department of leaning on down in cylinder body overcoat (15).

2. The internal rotation preventing mechanism of an electric cylinder according to claim 1, characterized in that: the novel piston rod is characterized by further comprising a screw rod (12), the screw rod (12) is installed in an inner cavity of the piston rod (4), an inner thread is arranged in the inner cavity of the piston rod (4), the screw rod (12) is in transmission connection with an inner cavity screw rod of the piston rod (4), and a transmission belt wheel (5) is arranged at one end of the screw rod (12).

3. The internal rotation prevention mechanism of an electric cylinder according to claim 1, characterized in that: the automatic feeding device is characterized by further comprising a transmission case (8), wherein a motor (6) is arranged at the top of the transmission case (8), a driving belt wheel (7) is arranged at the main shaft connecting end of the motor (6), and the driving belt wheel (7) is in transmission connection with the transmission belt wheel (5) through a transmission belt.

4. The internal rotation preventing mechanism of an electric cylinder according to claim 1, characterized in that: still including connecting ear frame (1), the middle part of connecting ear frame (1) is equipped with the mounting hole, the one end of connecting ear frame (1) is equipped with connector (2), it is fixed that connector (2) are inlayed with the one end of piston rod (4), connecting ear frame (1) side sets up to U type mouth structure.

5. The internal rotation preventing mechanism of an electric cylinder according to claim 1, characterized in that: the bearing sleeve (11) comprises an embedded chuck (14) and a ball bearing (18);

the embedded clamping head (14) is in an irregular I shape, clamping teeth are arranged on two sides of the end of the embedded clamping head (14), a fixed side lug (13) of an integrated structure is arranged on the inner side of the cylinder body outer sleeve (15), and an embedded groove (17) which can be meshed with the embedded clamping head (14) is formed in the inner side of the fixed side lug (13);

the ball bearing (18) is arranged in the middle of the bearing sleeve (11), and the screw rod (12) is rotatably connected with the ball bearing (18).

6. The internal rotation preventing mechanism of an electric cylinder according to claim 1, characterized in that: the middle part of the end face of the piston head (10) is provided with a screw hole, one end of the piston rod (4) is provided with a screw head, and the screw head is fixed with the screw hole in the middle part of the piston head (10) through threads.