CN218387160U

CN218387160U - Servo electric cylinder

Info

Publication number: CN218387160U
Application number: CN202221369909.0U
Authority: CN
Inventors: 吴新宇; 刘富; 陈海生
Original assignee: Shanghai Shentuo Hydraulic Technology Co ltd
Current assignee: Shanghai Shentuo Intelligent Manufacturing Equipment Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-01-24
Anticipated expiration: 2032-06-02

Abstract

The utility model discloses a servo electronic jar relates to servo electronic jar's technical field, include: the servo motor is arranged on one side of the electric cylinder body, the transmission device is arranged in the electric cylinder body, and the feedback device is arranged on the transmission device; the feedback device comprises an encoder, the transmission device is provided with the encoder, and the encoder is connected with a man-machine monitoring device used for detecting and controlling the servo electric cylinder. Can real-time monitoring push rod position through setting up the encoder of being connected with human-computer monitoring interface, can be so that push rod motion position is more accurate, reduce the risk of push rod damage, simple structure, safe and reliable.

Description

Servo electric cylinder

Technical Field

The utility model relates to servo electronic jar's technical field especially involves a servo electronic jar.

Background

The servo electric cylinder is a modularized product which integrates a servo motor and a lead screw, converts the rotary motion of the servo motor into linear motion, has the characteristics of accurate rotating speed and position control, and is widely applied to the industry. The electric cylinder is generally composed of a motor, a synchronous conveyor belt, a screw rod, a cylinder body and the like, and can be divided into a linear electric cylinder and a folding electric cylinder. In the linear electric cylinder, a motor is directly connected with a transmission screw rod of the electric cylinder, so that the linear electric cylinder is compact in structure, small in inertia and consistent in axial direction; the folding electric cylinder has short overall length and is suitable for occasions with small installation positions.

However, the conventional servo motor cylinder cannot determine the position of the push rod, and thus cannot determine whether the desired position is reached, and sometimes the push rod is excessively fed, thereby causing damage to the push rod.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a servo electronic jar for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

a servo electric cylinder comprises a servo motor, an electric cylinder body, a transmission device and a feedback device, wherein the servo motor is arranged on one side of the electric cylinder body, the transmission device is arranged in the electric cylinder body, and the feedback device is arranged on the transmission device;

the feedback device comprises an encoder, the transmission device is provided with the encoder, and the encoder is connected with a man-machine monitoring device used for detecting and controlling the servo electric cylinder.

Preferably, the electric cylinder block includes a vertical housing and a horizontal housing, and the horizontal housing is provided at one side of the vertical housing.

As a further preference, the servo motor is arranged on one side of the vertical shell close to the horizontal shell and is positioned on one side of the horizontal shell.

Preferably, the transmission device comprises a transmission assembly and a pushing assembly, the transmission assembly is arranged in the vertical shell, the pushing assembly is arranged in the horizontal shell, the transmission assembly comprises a transmission belt and transmission wheels, one side of the servo motor and one side of the pushing assembly, which are close to the vertical shell, are both provided with one transmission wheel, and the transmission belt is sleeved between the two transmission wheels.

As a further preferred, the promotion subassembly includes lead screw and push rod, promote subassembly one side of drive wheel is equipped with the lead screw, be equipped with drive nut on the lead screw, still be equipped with the external screw thread on the lead screw, drive nut with the external screw thread cooperatees, drive nut's outside cover is equipped with the mounting bracket, the mounting bracket is kept away from one side of drive wheel is equipped with the push rod, the one end of push rod is equipped with the jack, the lead screw can be located in the jack.

Preferably, an opening is formed in one end, far away from the vertical shell, of the horizontal shell, a supporting sleeve used for sealing the opening is arranged at the opening, a through hole is formed in the supporting sleeve, and the other end of the push rod penetrates through the through hole and is located outside the horizontal shell.

As a further preference, a push rod sleeve is further arranged in the horizontal shell, and the push rod sleeve is attached to the inner wall of the horizontal shell.

The technical scheme has the following advantages or beneficial effects:

the utility model provides a servo electronic jar can real-time monitoring push rod position through setting up the encoder that is connected with man-machine supervisory equipment, can be so that push rod motion position is more accurate, reduces the risk of push rod damage, simple structure, safe and reliable.

Drawings

Fig. 1 is a schematic sectional view of the servo electric cylinder of the present invention.

In the figure: 1. a servo motor; 2. an electric cylinder; 21. a vertical housing; 22. a horizontal housing; 3. a transmission device; 31. a transmission assembly; 311. a driving wheel; 312. a transmission belt; 32. a pushing assembly; 321. a lead screw; 322. a push rod; 323. a drive nut, 324, external threads; 4. an encoder; 5. a support sleeve; 6. the push rod sleeve.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should 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.

Fig. 1 is a schematic cross-sectional view of the servo electric cylinder of the present invention, please refer to fig. 1, which shows a preferred embodiment, illustrating a servo electric cylinder, comprising: the electric power transmission device comprises a servo motor 1, an electric cylinder body 2, a transmission device 3 and a feedback device, wherein the servo motor 1 is arranged on one side of the electric cylinder body 2, the servo motor 1 is used as a power source to drive the transmission device 3 to carry out transmission, the servo motor 1 can be externally connected with a power supply and can also store electric quantity by itself, and can rotate forwards or reversely so as to realize the extension and shortening of the transmission device 3, the transmission device 3 is arranged in the electric cylinder body 2, and the feedback device is arranged on the transmission device 3; the feedback device comprises an encoder 4, the transmission device 3 is provided with the encoder 4, and the encoder 4 is connected with a man-machine monitoring device used for detecting and controlling the servo electric cylinder. The encoder 4 can check and feed back the position of the transmission device 3 in real time, read the feedback value of the encoder 4 on the servo electric cylinder in real time, obtain the actual position of the servo electric cylinder and upload the actual position to the human-machine monitoring equipment for display monitoring. The servo motor 1 is convenient for workers to adjust and close in time, so that damage to the transmission device 3 is reduced.

Further, as a preferred embodiment, the electric cylinder 2 includes a vertical housing 21 and a horizontal housing 22, and the horizontal housing 22 is disposed at one side of the vertical housing 21. The servo motor 1 is disposed on one side of the vertical casing 21 close to the horizontal casing 22 and on one side of the horizontal casing 22. The horizontal housing 22 and the vertical housing 21 are arranged in an L shape. The horizontal shell 22 is far away from the opening of one end of the vertical shell 21, a supporting sleeve 5 for sealing the opening is arranged at the opening, and the supporting sleeve 5 is matched with the transmission device 3. A push rod sleeve 6 is also arranged in the horizontal shell 22, and the push rod sleeve 6 is jointed with the inner wall of the horizontal shell 22.

Further, as a preferred embodiment, the transmission device 3 includes a transmission component 31 and a pushing component 32, the transmission component 31 is disposed in the vertical casing 21, the pushing component 32 is disposed in the horizontal casing 22, the transmission component 31 includes a transmission belt 312 and transmission wheels 311, one side of the servo motor 1 and one side of the pushing component 32 close to the vertical casing 21 are both provided with a transmission wheel 311, and the transmission belt 312 is sleeved between the two transmission wheels 311. When the servo motor 1 is started, the driving wheel 311 on the servo motor 1 rotates, and the driving belt 312 drives the driving wheel 311 on the other pushing assembly 32 to rotate together under the rotation of the driving wheel 311.

Further, as a preferred embodiment, the pushing assembly 32 includes a screw 321 and a push rod 322, one side of the driving wheel 311 on one side of the pushing assembly 32 is provided with the screw 321, the screw 321 is provided with a driving nut 323, the screw 321 is further provided with an external thread 324, the driving nut 323 is matched with the external thread 324, an installation frame is sleeved on the outer side of the driving nut 323, one side of the installation frame away from the driving wheel 311 is provided with the push rod 322, one end of the push rod 322 is provided with a jack, and the screw 321 can be arranged in the jack. The support sleeve 5 is provided with a through hole, and the other end of the push rod 322 passes through the through hole and is positioned outside the horizontal shell 22. The push rod 322 is connected with the mounting rack, when the driving wheel 311 on the screw rod 321 rotates clockwise, the screw rod 321 is synchronously driven to rotate clockwise, and the transmission nut 323 matched with the external thread 324 on the screw rod 321 and the mounting rack move upwards according to the rotation of the screw rod 321, so that the push rod 322 connected with the mounting rack is driven to move upwards. And the depth of the jack is greater than the length of the external thread 324, and the jack is used for preventing the push rod 322 and the lead screw 321 from being limited when the push rod 322 moves. The length of the part of the push rod 322 outside the horizontal shell 22 to the position where the encoder 4 is arranged is larger than the depth of the insertion hole, so that when the push rod 322 moves, the encoder 4 and the support sleeve 5 are interfered and cannot be shortened, and the push rod 322 is prevented from being damaged.

Further, as a preferred embodiment, a control command signal is input to the servo motor 1 through a human-computer monitoring device, and then a command is sent to the servo motor 1 through setting a motion command, an interpolation algorithm, a path planning, and the like, the servo motor 1 drives the servo motor 1 to operate according to the command, and the transmission belt 312 drives the screw 321 and the external thread 324 thereon to rotate; the transmission nut 323 is radially limited, the mounting frame is driven by the rotating force of the lead screw 321 to reciprocate linearly together with the push rod 322, the encoder 4 is mounted at the end part of the push rod 322, and the position of the push rod 322 is fed back in real time. And the feedback value of the encoder 4 on the servo electric cylinder is read in real time, the actual position of the servo electric cylinder is obtained, and the actual position is uploaded to the human-machine monitoring equipment for display monitoring.

The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.

Claims

1. A servo electric cylinder is characterized by comprising a servo motor, an electric cylinder body, a transmission device and a feedback device, wherein the servo motor is arranged on one side of the electric cylinder body;

2. A servo electric cylinder as claimed in claim 1, wherein the electric cylinder block comprises a vertical housing and a horizontal housing, the horizontal housing being provided at one side of the vertical housing.

3. A servo electric cylinder as claimed in claim 2, wherein the servo motor is provided on one side of the vertical housing adjacent to the horizontal housing and on one side of the horizontal housing.

4. A servo electric cylinder as claimed in claim 2, wherein said transmission means comprises a transmission assembly and a pushing assembly, said transmission assembly is disposed in said vertical housing, said pushing assembly is disposed in said horizontal housing, said transmission assembly comprises a transmission belt and transmission wheels, said servo motor and said pushing assembly are disposed on a side of said vertical housing, and said transmission belt is disposed between said transmission wheels.

5. The servo electric cylinder as recited in claim 4, wherein the pushing assembly comprises a lead screw and a push rod, the lead screw is disposed on one side of the driving wheel on one side of the pushing assembly, a driving nut is disposed on the lead screw, an external thread is further disposed on the lead screw, the driving nut is matched with the external thread, a mounting frame is sleeved on an outer side of the driving nut, the push rod is disposed on a side of the mounting frame away from the driving wheel, a jack is disposed at one end of the push rod, and the lead screw can be inserted into the jack.

6. A servo electric cylinder as claimed in claim 5 wherein the horizontal housing is open at one end remote from the vertical housing, a support sleeve for sealing the opening is provided at the opening, a through hole is provided in the support sleeve, and the other end of the push rod passes through the through hole and is located outside the horizontal housing.

7. A servo electric cylinder as claimed in claim 6 wherein a push rod sleeve is further provided in the horizontal housing, the push rod sleeve engaging the inner wall of the horizontal housing.