CN215897487U

CN215897487U - Heavy-load electric cylinder structure

Info

Publication number: CN215897487U
Application number: CN202121837293.0U
Authority: CN
Inventors: 孙作成
Original assignee: Shanghai Honghe Automation Technology Co ltd
Current assignee: Shanghai Honghe Automation Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-02-22
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a heavy-load electric cylinder structure, and belongs to the technical field of electric cylinders. Including drive arrangement, the transmission case, the bearing frame, the lead screw group, the nut cover, piston rod and cylinder body, drive arrangement includes driving motor and motor wheel, driving motor sets up the one end at the transmission case, the other end of transmission case is provided with the transmission shaft, the motor wheel sets up on the transmission shaft, lead screw group includes many lead screws, the one end of each lead screw all is provided with the gear, gear and motor wheel meshing, be provided with the bearing frame between transmission case and the cylinder body, the lead screw passes the bearing frame, the nut slides and sets up on the lead screw group, the piston rod sets up the other end at the lead screw group, the piston rod passes through the nut cover and can dismantle with the nut and be connected, the one end of cylinder body is provided with the front end housing. Through providing an electronic jar structure of heavy load, realize super heavy load's environmental application, be not restricted in the restriction of single lead screw rated dynamic load or dead load to realize the needs of arbitrary load.

Description

Heavy-load electric cylinder structure

Technical Field

The utility model relates to a heavy-load electric cylinder structure, and belongs to the technical field of electric cylinders.

Background

The electric cylinder drives various screw rods to rotate by various motors, converts the screw rods into linear motion through nuts, and pushes the sliding table to do reciprocating linear motion along various guide rails like a cylinder.

The electric cylinder in the existing market adopts a lead screw to convert kinetic energy, the rated push-pull force of the electric cylinder depends on the technical indexes of the rated dynamic load and the rated static load of the lead screw, is limited by the lead screw, and cannot be applied to occasions with heavy push-pull force.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a heavy load electronic jar structure, it has solved among the prior art electronic jar and has been subject to the reason of lead screw, can't realize the problem of the occasion application at great push-pull power.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a heavy-load electric cylinder structure comprises a driving device, a transmission case, a bearing seat, a screw rod group, a nut sleeve, a piston rod and a cylinder body;

the driving device comprises a driving motor and a motor wheel, the driving motor is arranged at one end of the transmission case, the other end of the transmission case is provided with a transmission shaft, and the motor wheel is arranged on the transmission shaft;

the screw rod group comprises a plurality of screw rods, one end of each screw rod is provided with a gear, the gear is meshed with the motor wheel, a bearing seat is arranged between the transmission box and the cylinder body, the screw rods penetrate through the bearing seats, and nuts are arranged on the screw rod group in a sliding manner;

the piston rod is arranged at the other end of the screw rod group, the piston rod is detachably connected with the nut through the nut sleeve, and a front end cover is arranged at one end of the cylinder body.

As a preferable example, the piston rod is provided with a cavity, and one end of the screw rod group penetrates through the nut and then is inserted into the cavity.

The utility model has the beneficial effects that:

1. through the synchronous transmission motion of a plurality of lead screws and the transmission of the driving motor and the transmission case, the environment application of super heavy load is realized, and the environment application is not limited by the limitation of the rated dynamic load or static load of a single lead screw, so that the requirement of any load is realized.

2. A planetary gear is formed between the motor wheel and the gear, so that the bearing capacity of the gear is increased, and the work is stable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a driving device;

FIG. 3 is a schematic structural view of a lead screw assembly;

fig. 4 is a schematic structural view of the cavity.

In the figure: 1. a drive device; 11. a drive motor; 12. a motor wheel; 13. a gear; 2. a transmission case; 21. a drive shaft; 3. a bearing seat; 4. a screw rod group; 41. a first lead screw; 42. a second lead screw; 43. a third screw rod; 5. a nut; 6. a nut sleeve; 7. a piston rod; 71. a cavity; 8. a cylinder body; 9. a front end cap.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the utility model easy to understand, the utility model is further described with reference to the specific drawings.

As shown in fig. 1-4, a heavy-duty electric cylinder structure includes a driving device 1, a transmission case 2, a bearing seat 3, a lead screw group 4, a nut 5, a nut sleeve 6, a piston rod 7 and a cylinder body 8.

The driving device 1 comprises a driving motor 11 and a motor wheel 12, wherein the driving motor 11 comprises a motor shaft, and the motor shaft is connected with one end of the transmission case 2. The other end of the transmission case 2 is provided with a transmission shaft 21, and the motor wheel 12 is fixedly arranged on the transmission shaft 21.

The screw group 4 includes a first screw 41, a second screw 42, and a third screw 43. The first screw rod 41, the second screw rod 42 and the third screw rod are evenly and symmetrically distributed on the transmission case 2, one end of each screw rod is provided with a gear 13, and the gear 13 is meshed with the motor wheel 12.

A bearing seat 3 is arranged between the transmission case 2 and the cylinder body 8, the screw rod penetrates through the bearing seat 3, and the nut 5 is arranged on the screw rod group 4 in a sliding mode. The bearing has the inner supporting point as the shaft and the outer supporting point as the bearing seat.

The piston rod 7 is arranged at the other end of the screw rod group 4, a cavity 71 is formed in the piston rod 7, one end of the screw rod group 4 penetrates through the nut 5 and then is inserted into the cavity 71, and two ends of the nut sleeve 6 are respectively in threaded connection with the cylinder body 8 and the nut 5, so that the cylinder body 8 and the nut 5 are connected together.

One end of the cylinder body 8 is provided with a front end cover 9, and the diameter of the front end cover 9 is larger than that of the cylinder body 8. The driving device 1 drives the screw rod group 4 to drive the piston rod 7 to do telescopic motion along the axial direction of the cylinder body 8.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A heavy-load electric cylinder structure is characterized by comprising a driving device (1), a transmission case (2), a bearing seat (3), a screw rod group (4), a nut (5), a nut sleeve (6), a piston rod (7) and a cylinder body (8);

the driving device (1) comprises a driving motor (11) and a motor wheel (12), the driving motor (11) is arranged at one end of the transmission case (2), the other end of the transmission case (2) is provided with a transmission shaft (21), and the motor wheel (12) is arranged on the transmission shaft (21);

the screw rod group (4) comprises a plurality of screw rods, one end of each screw rod is provided with a gear (13), the gear (13) is meshed with a motor wheel (12), a bearing seat (3) is arranged between the transmission case (2) and the cylinder body (8), the screw rods penetrate through the bearing seats (3), and nuts (5) are arranged on the screw rod group (4) in a sliding manner;

the piston rod (7) is arranged at the other end of the screw rod group (4), the piston rod (7) is detachably connected with the nut (5) through the nut sleeve (6), and a front end cover (9) is arranged at one end of the cylinder body (8).

2. The heavy-duty electric cylinder structure according to claim 1, wherein the piston rod (7) is provided with a cavity (71), and one end of the lead screw group (4) is inserted into the cavity (71) after passing through the nut (5).