CN213479092U

CN213479092U - Cylinder body structure of electric cylinder

Info

Publication number: CN213479092U
Application number: CN202022009458.7U
Authority: CN
Inventors: 刘光华; 李泳斌; 潘志明
Original assignee: Foshan Opumai Machinery Technology Co ltd
Current assignee: Foshan Opumai Machinery Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-18
Anticipated expiration: 2030-09-14

Abstract

The utility model belongs to the technical field of the electric jar, it discloses a cylinder body structure of electric jar, including the cylinder liner, be equipped with piston rod, the lead screw that one end extends to outside the cylinder liner in the cylinder liner, be equipped with the lead screw nut who is used for driving the piston rod flexible on the lead screw, lead screw nut passes through a connecting seat and piston rod fixed connection, be equipped with the spout of at least a pair of symmetrical arrangement on the inner wall of cylinder liner, the spout is arranged along the flexible direction of piston rod, be equipped with on the connecting seat with spout complex slider corresponds to the slider central symmetry of a pair of spout and arranges, and the cylinder body structure of this electric jar has prolonged the cooperation length of slider with the spout under the circumstances that does not increase slider length, has improved the stability of slider when the direction is flexible.

Description

Cylinder body structure of electric cylinder

Technical Field

The utility model relates to an electric jar technical field specifically is a cylinder body structure of electric jar.

Background

The invention patent publication No. CN104964012A discloses a piston rod type electric cylinder, including: the cylinder body, the screw rod, the hollow tube, the front end device, the tail end device and the built-in device, the front end device comprises a front end cover, a guide bush, a shaft sleeve and a shaft outlet end, the tail end device comprises a first spacing ring, a first bearing, a rear end cover, a second spacing ring and the tail end device, and the built-in device comprises a screw cap, a guide key, a wear-resisting ring, a magnetic ring and a piston.

In the scheme of the piston rod type electric cylinder, the piston in the built-in device is matched with the inner wall of the cylinder body, so that the screw rod is prevented from rubbing the cylinder body when moving, and the service life of each part of the electric cylinder is prolonged;

the piston is provided with a guide key, and two ends of the piston are respectively connected with the hollow pipe and the nut, so that the hollow pipe and the nut can perform guide movement on the screw rod and the hollow rod.

The problem that prior art exists lies in, the direction key on the piston is symmetrical arrangement, and its length is shorter, and is shorter with cylinder body complex length, and stability is relatively poor.

Therefore, the technical problem to be solved by the application is as follows: how to improve the flexible stability of electricity jar piston rod direction, improve its sliding property.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cylinder body structure of electric jar, this cylinder body structure of electric jar have prolonged the cooperation length of slider with the spout under the condition that does not increase slider length, have improved the stability of slider when the direction is flexible effectively.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a cylinder body structure of electric cylinder, includes the cylinder liner, be equipped with piston rod, the lead screw that one end extends to outside the cylinder liner in the cylinder liner, be equipped with the screw-nut who is used for driving the piston rod flexible on the lead screw, screw-nut passes through a connecting seat and piston rod fixed connection, be equipped with the spout of at least a pair of symmetrical arrangement on the inner wall of cylinder liner, the spout is arranged along the flexible direction of piston rod, be equipped with on the connecting seat with spout complex slider corresponds to the slider central symmetry of a pair of spout and arranges.

In the above cylinder body structure of the electric cylinder, the sliding block is a fixed self-lubricating material.

In the cylinder body structure of the electric cylinder, the connecting seat is provided with a mounting groove for mounting the sliding block, and the sliding block is fixedly connected in the mounting groove.

In the cylinder body structure of the electric cylinder, the two ends of the connecting seat are respectively provided with a wear-resistant sheet which is in sliding connection with the inner wall of the cylinder sleeve, and the end part of the wear-resistant sheet extends to the mounting groove.

In the cylinder body structure of the electric cylinder, the connecting seat is further provided with a magnetic ring, and the magnetic ring is arranged between the wear-resistant pieces.

In the cylinder body structure of the electric cylinder, the cylinder sleeve is provided with a plurality of grease nipples communicated with the inner cavity of the cylinder sleeve.

In the cylinder body structure of the electric cylinder, one end of the cylinder sleeve is provided with a flange plate for sealing the cylinder sleeve, one side of the flange plate is provided with a first mounting plate, and two ends of the first mounting plate are provided with first mounting holes.

In the cylinder body structure of the electric cylinder, the other end of the cylinder sleeve is provided with a bearing seat, and a bearing matched with the screw rod is arranged in the bearing seat;

the bearing seat is provided with a second mounting plate which is arranged corresponding to the first mounting plate, and the two ends of the second mounting plate are provided with second mounting holes.

In the above cylinder body structure of the electric cylinder, the piston rod is a hollow piston rod, and the lead screw extends into the piston rod;

one end of the screw rod extending into the piston rod is provided with a sliding sleeve matched with the inner cavity of the piston rod.

In the cylinder body structure of the electric cylinder, one end of the piston rod extending out of the cylinder sleeve is provided with a connector, and the connector is provided with a fisheye joint used for connecting peripheral equipment.

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

in the utility model, at least one pair of symmetrically arranged 2 chutes is arranged in the cylinder sleeve, and the slide block moves along the chutes in the process of stretching the piston rod, thereby playing an auxiliary role in stretching the piston rod and improving the stability of the slide block in guiding stretching;

meanwhile, the sliding blocks are arranged in a central symmetrical mode, and compared with the sliding blocks arranged symmetrically, the length of the sliding blocks matched with the sliding grooves is effectively prolonged under the condition that the length of the sliding blocks is not increased, and the stability of the sliding blocks in guiding and stretching is further improved.

Drawings

Fig. 1 is a perspective view of embodiment 1 of the present invention;

fig. 2 is a sectional view of embodiment 1 of the present invention;

fig. 3 is a structural view of a cylinder liner according to embodiment 1 of the present invention;

fig. 4 is a structural diagram of a joint of the screw rod and the piston rod according to embodiment 1 of the present invention;

fig. 5 is an enlarged view of a in fig. 2 according to embodiment 1 of the present invention.

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.

Example 1

Referring to fig. 1 to 5, a cylinder body structure of an electric cylinder includes a cylinder sleeve 1, a piston rod 2 and a lead screw 3, one end of which extends out of the cylinder sleeve 1, are arranged in the cylinder sleeve 1, a lead screw nut 4 for driving the piston rod 2 to extend and retract is arranged on the lead screw 3, the lead screw nut 4 is fixedly connected with the piston rod 2 through a connecting seat 5, at least one pair of symmetrically arranged sliding grooves 11 is arranged on an inner wall of the cylinder sleeve 1, the sliding grooves 11 are arranged along the extending and retracting direction of the piston rod 2, and sliding blocks 51 matched with the sliding grooves 11 are arranged on the connecting seat 5 and are arranged symmetrically with the center of the sliding blocks 51 corresponding to;

in practical application, one end of the screw rod 3 extending out of the cylinder sleeve 1 is in transmission connection with an external driving device, and the external driving device drives the screw rod 3 to rotate, so that the screw rod nut 4 rises or falls, and the piston rod 2 is stretched;

in this embodiment, the sliding blocks 51 are arranged on the connecting seat 5 and are arranged in a centrosymmetric manner, so that the length of the sliding blocks 51 matched with the sliding groove 11 can be effectively increased without increasing the length of the sliding blocks 51, the material is saved, and the stability of the sliding blocks 51 in guiding and stretching is improved;

the feed screw nut 4 and the piston rod 2 are both arranged in the middle connecting seat 5 and are in interference fit with the inner cavity of the connecting seat 5, and the feed screw nut and the piston rod can also be welded or connected by bolts, which is not limited in the embodiment;

as a specific implementation of the present embodiment, the sliding grooves 11 are a pair symmetrically arranged.

Preferably, the sliding block 51 is a fixed self-lubricating material, a solid lubricating film is generated in the process of matching the sliding block 51 with the sliding groove 11 of the cylinder sleeve 1, friction and wear are reduced, the sliding performance of the piston rod 2 is further improved, the sliding performance can be plastic king, nylon and the like, and the embodiment is not limited to this.

As a preferred specific implementation of this embodiment, the connecting seat 5 is provided with an installation groove (not shown in the figure) for installing the sliding block 51, the sliding block 51 is fixedly connected in the installation groove, and as a specific implementation of this embodiment, the sliding block is fixedly connected in the installation groove by a bolt.

Preferably, referring to fig. 4, the two ends of the connecting seat 5 are both provided with wear-resistant pieces 52 slidably connected with the inner wall of the cylinder sleeve 1, the end portions of the wear-resistant pieces 52 extend to the mounting groove, the structure is simple, and when the piston rod 2 extends and retracts, the wear-resistant pieces 52 are matched with the inner wall of the cylinder sleeve 1, so that the service life of the connecting seat 5 is effectively prolonged.

More preferably, the connecting seat 5 is further provided with a magnetic ring 53, the magnetic ring 53 is disposed between the wear-resistant pieces 52, specifically, the connecting seat 5 is provided with a magnetic ring mounting groove (not shown in the figure), the magnetic ring 53 is disposed in the magnetic ring mounting groove, and the number of the magnetic rings 53 on the connecting seat 5 is 2, which are arranged side by side, so as to effectively enhance the anti-interference capability of the electric cylinder.

Preferably, referring to fig. 1-2, a plurality of grease nipples 12 communicated with the inner cavity of the cylinder sleeve 1 are arranged on the cylinder sleeve 1 and used for injecting grease into the cylinder sleeve 1 to ensure the sliding performance of the connecting seat 5;

the number of the grease nipples 12 may be 2, 3 or more, which is not limited in this embodiment, and as a specific implementation of this embodiment, the number of the grease nipples 12 is 2 that are arranged on one side of the cylinder liner 1.

In the embodiment, one end of the cylinder sleeve 1 is provided with a flange plate 6 for closing the cylinder sleeve 1, and one end of the piston rod 2 passes through the flange plate 6 and extends out of the cylinder sleeve 1; one side of flange plate 6 is equipped with first mounting panel 61, the both ends of first mounting panel 61 all are equipped with first mounting hole 62.

The other end of the cylinder sleeve 1 is provided with a bearing 71 seat 7, a bearing 71 matched with the screw rod 3 is arranged in the bearing 71 seat 7, and the bearing 71 plays a role in supporting the screw rod 3 and assisting the screw rod 3 to rotate for the screw rod 3;

the bearing 71 base 7 is provided with a second mounting plate 72 correspondingly arranged with the first mounting plate 61, and two ends of the second mounting plate 72 are provided with second mounting holes 73.

Specifically, the first mounting hole 62 and the second mounting hole 73 are both countersunk through holes, so that the flatness of the mounting surface is ensured; the cylinder sleeve 1 is fixed on the external equipment through the first mounting hole 62 and the second mounting hole 73, and the cylinder sleeve fixing device is simple in structure and convenient to mount and dismount.

In the present embodiment, the piston rod 2 is a hollow piston rod 2, and the screw rod 3 extends into the piston rod 2;

one end of the screw rod 3 extending into the piston rod 2 is provided with a sliding sleeve 31 matched with the inner cavity of the piston rod 2, and the piston rod 2 plays a supporting role in one end of the screw rod 3, so that the working stability of the screw rod 3 is ensured.

In this embodiment, a connector 8 is arranged at one end of the piston rod 2 extending out of the cylinder sleeve 1, and a fisheye joint 9 for connecting peripheral equipment is arranged on the connector 8;

the connector 8 and the piston rod 2 are in threaded connection, the fisheye joint 9 and the connector 8 are in threaded connection, connection modes such as bolt connection are not eliminated in the embodiment, and the threaded connection is only a specific implementation mode of the embodiment.

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 a cylinder body structure of electric cylinder, includes the cylinder liner, be equipped with piston rod, the lead screw that one end extends to outside the cylinder liner in the cylinder liner, be equipped with the screw-nut who is used for driving the piston rod flexible on the lead screw, screw-nut passes through a connecting seat and piston rod fixed connection, its characterized in that, be equipped with the spout of at least a pair of symmetrical arrangement on the inner wall of cylinder liner, the spout is arranged along the flexible direction of piston rod, be equipped with on the connecting seat with spout complex slider corresponds to the slider central symmetry of a pair of spout.

2. The cylinder structure of an electric cylinder according to claim 1, wherein the sliding block is a fixed self-lubricating material.

3. The cylinder structure of an electric cylinder according to claim 2, wherein the connecting base is provided with a mounting groove for mounting the sliding block, and the sliding block is fixedly connected in the mounting groove.

4. The cylinder body structure of an electric cylinder according to claim 3, characterized in that, the two ends of the connecting seat are both provided with wear-resistant pieces which are connected with the inner wall of the cylinder sleeve in a sliding way, and the end parts of the wear-resistant pieces extend to the mounting groove.

5. The cylinder structure of an electric cylinder as claimed in claim 4, wherein the connecting seat is further provided with a magnetic ring, and the magnetic ring is disposed between the wear-resistant pieces.

6. The cylinder body structure of an electric cylinder according to claim 1, wherein the cylinder liner is provided with a plurality of grease nipples communicating with the inner cavity of the cylinder liner.

7. The cylinder body structure of an electric cylinder according to claim 6, characterized in that one end of the cylinder sleeve is provided with a flange plate for closing the cylinder sleeve, one side of the flange plate is provided with a first mounting plate, and both ends of the first mounting plate are provided with first mounting holes.

8. The cylinder body structure of an electric cylinder according to claim 7, characterized in that the other end of the cylinder sleeve is provided with a bearing seat, and a bearing matched with the screw rod is arranged in the bearing seat;

9. The cylinder structure of an electric cylinder according to claim 1, wherein the piston rod is a hollow piston rod, and the lead screw extends into the piston rod;

10. The electric cylinder body structure of claim 9, wherein a connector is provided at one end of the piston rod extending out of the cylinder sleeve, and a fisheye joint for connecting peripheral equipment is provided on the connector.