CN215521885U

CN215521885U - Short shaft output shaft structure of three-shaft transmission system of co-directional extruder

Info

Publication number: CN215521885U
Application number: CN202121362845.7U
Authority: CN
Inventors: 孙茂镇
Original assignee: Nanjing Changxin Intelligent Equipment Co ltd
Current assignee: Nanjing Changxin Intelligent Equipment Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2022-01-14
Anticipated expiration: 2031-06-19

Abstract

The utility model discloses a short shaft output shaft structure of a triaxial transmission system of a co-directional extruder, which comprises a thrust bearing, wherein one end of the thrust bearing is provided with a needle bearing, one end of the needle bearing is provided with a limit bearing, the end part of the limit bearing is connected with a first shaft body, a connecting cylinder is sleeved outside the first shaft body, a second shaft body is arranged inside one end of the connecting cylinder, and the end surfaces of the first shaft body and the second shaft body are respectively provided with a first mounting groove and a second mounting groove; according to the utility model, the movable block is slidably arranged in the first shaft body through the designed sleeve column and the sleeve, and the inclined surfaces of the transmission block and the movable block are mutually attached through the designed transmission block and the designed movable block, so that power transmission is realized, and the synchronous rotation of the first shaft body and the second shaft body is further ensured.

Description

Short shaft output shaft structure of three-shaft transmission system of co-directional extruder

Technical Field

The utility model belongs to the technical field of short shaft output shaft structures, and particularly relates to a short shaft output shaft structure of a three-shaft transmission system of a co-directional extruder.

Background

The short shaft output shaft of the triaxial transmission system of the homodromous extruder transmission case is supported by two groups of needle roller bearings, the tail part of the minor shaft output shaft bears axial thrust by virtue of the tandem thrust bearing, and the shaft end of the tandem thrust bearing the axial thrust is connected with the short shaft output shaft by virtue of the flat key.

The existing short shaft output shaft is put into a three-shaft transmission system of a transmission box of a co-rotating extruder to transmit power, and the output shaft is a shaft body, so that the output shaft cannot timely break away from rotation when being subjected to a large rotation load effect, damage is caused, and the service life is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a short shaft output shaft structure of a three-shaft transmission system of a co-rotating extruder, so as to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a short shaft output shaft structure of a three-shaft transmission system of a co-directional extruder comprises a thrust bearing, wherein one end of the thrust bearing is provided with a needle roller bearing, one end of the needle bearing is provided with a limit bearing, the end part of the limit bearing is connected with a first shaft body, a connecting cylinder is sleeved outside the first shaft body, a second shaft body is arranged inside one end of the connecting cylinder, the end surfaces of the first shaft body and the second shaft body are respectively provided with a first mounting groove and a second mounting groove, a movable block is arranged in the first mounting groove, a sleeve is fixed at one end of the movable block, a sleeve column is arranged in the sleeve and fixed on the end surface of the first mounting groove, a transmission block is fixed in the second mounting groove, the terminal surface of transmission piece and movable block laminates each other, just the terminal surface of transmission piece and movable block all be provided with the inclined plane of the same inclination.

Preferably, the sleeve is externally sleeved with a top spring, and the top spring is positioned inside the first mounting groove.

Preferably, the outer walls of the first shaft body and the second shaft body are provided with rotating grooves, the outer wall of the connecting cylinder penetrates through and is fixed with a connecting column, and one end of the connecting column is arranged inside the rotating grooves.

Preferably, the longitudinal sections of the movable block and the transmission block are both circular structures, and the outer diameters of the movable block and the transmission block are equal.

Preferably, the first shaft body and the second shaft body have the same outer diameter, and the connecting cylinder is in clearance fit connection with the first shaft body and the second shaft body.

Preferably, the connecting columns are two groups, and the two groups of connecting columns are symmetrical about the vertical central line of the connecting cylinder.

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

(1) through the cover post and the sleeve of design, with movable block slidable mounting in the primary shaft body, transmission block and movable block through the design, transmission block and movable block inclined plane between them are laminated each other, realize power transmission, and then guarantee that first axis body and secondary shaft body rotate in step, top spring through the design, exert the spring action to the movable block, when making its axis body loading capacity be less than elasticity, the terminal surface of movable block and transmission block is laminated each other, realize power transmission, when its axis body loading capacity is greater than elasticity, the terminal surface of movable block and transmission block produces the interact power, make it promote the movable block and slide in first mounting groove, and then stop with the laminating power transmission of transmission block, make two axis bodies break away from the rotation fast, avoid it to take place to damage.

(2) Through the spliced pole and the connecting cylinder of design, the connecting cylinder is all established first axis body and the equal cover of second axis body at both ends, and realizes rotating the connection through the spliced pole, guarantees that two axis body mutual rotations do not influence each other.

Drawings

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

FIG. 2 is an assembled cross-sectional view of the first shaft body, the second shaft body and the connecting cylinder of the present invention;

FIG. 3 is an enlarged view of the utility model at A;

in the figure: 1. a thrust bearing; 2. a needle bearing; 3. a limit bearing; 4. a first shaft body; 5. connecting columns; 6. a connecting cylinder; 7. a second shaft body; 8. a spring is supported; 9. a first mounting groove; 10. a second mounting groove; 11. a movable block; 12. a transmission block; 13. rotating the groove; 14. sleeving a column; 15. a sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1 to 3, the present invention provides a technical solution: a short shaft output shaft structure of a three-shaft transmission system of a co-directional extruder comprises a thrust bearing 1, one end of the thrust bearing 1 is provided with a needle roller bearing 2, one end of the needle roller bearing 2 is provided with a limit bearing 3, the end part of the limit bearing 3 is connected with a first shaft body 4, the outer part of the first shaft body 4 is sleeved with a connecting cylinder 6, one end of the connecting cylinder 6 is internally provided with a second shaft body 7, the end surfaces of the first shaft body 4 and the second shaft body 7 are respectively provided with a first mounting groove 9 and a second mounting groove 10, a movable block 11 is arranged inside the first mounting groove 9, one end of the movable block 11 is fixed with a sleeve 15, the sleeve 15 is internally provided with a sleeve column 14, the movable block 11 is slidably mounted in the first shaft body 4 through a designed sleeve column 14 and a sleeve 15, the sleeve column 14 is fixed on the end surface of the first mounting groove 9, a transmission block 12 is fixed inside the second mounting groove 10, and through a designed transmission block 12 and a movable block 11, the inclined surfaces of the transmission block 12 and the movable block 11 are mutually attached to realize power transmission, so as to ensure that the first shaft body 4 and the second shaft body 7 synchronously rotate, the end surfaces of the transmission block 12 and the movable block 11 are mutually attached, the end surfaces of the transmission block 12 and the movable block 11 are provided with inclined surfaces with the same inclination, the sleeve 15 is sleeved with a top spring 8, and through the designed top spring 8, the movable block 11 is applied with elastic force, when the shaft body load force is smaller than the elastic force, the end surfaces of the movable block 11 and the transmission block 12 are mutually jointed to realize power transmission, when the load force of the shaft body is larger than the elastic force, the end surfaces of the movable block 11 and the transmission block 12 generate an interaction force to push the movable block 11 to slide in the first mounting groove 9, and then stop and the laminating power transmission of transmission piece 12, make two axostylus axostyles break away from the rotation fast, avoid it to take place to damage, top spring 8 is located the inside of first mounting groove 9.

In this embodiment, it is preferred, the turn trough 13 has all been seted up to the outer wall of the primary shaft body 4 and the secondary shaft body 7, the outer wall of connecting cylinder 6 runs through and is fixed with spliced pole 5, spliced pole 5 and connecting cylinder 6 through the design, connecting cylinder 6 is all established at both ends with the equal cover of the primary shaft body 4 and the secondary shaft body 7, and realize rotating the connection through spliced pole 5, guarantee that two axis body intercommunications do not influence each other, the inside of turn trough 13 is arranged in to spliced pole 5's one end, movable block 11 is circular structure with the longitudinal section of driving block 12, and movable block 11 equals with the external diameter of driving block 12, the external diameter of the primary shaft body 4 and the secondary shaft body 7 equals, connecting cylinder 6 is clearance fit with the primary shaft body 4 and the secondary shaft body 7 and is connected, spliced pole 5 is two sets of, and two sets of spliced pole 5 are symmetrical about the vertical central line of connecting cylinder 6.

The working principle and the using process of the utility model are as follows: when the utility model is put into use, the top spring 8 arranged in the first shaft body 4 exerts an elastic action on the movable block 11, so that the shaft body load force is smaller than the elastic force, the end surfaces of the movable block 11 and the transmission block 12 are mutually attached, power transmission is realized, and the synchronous rotation of the first shaft body 4 and the second shaft body 7 is ensured.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a minor axis output shaft structure of syntropy extruder triaxial transmission system, includes thrust bearing (1), the one end of thrust bearing (1) is provided with needle bearing (2), the one end of needle bearing (2) is provided with spacing bearing (3), the end connection of spacing bearing (3) has first axis body (4), its characterized in that: the outside cover of first axis body (4) is equipped with connecting cylinder (6), the inside second shaft body (7) that is provided with of one end of connecting cylinder (6), first mounting groove (9) and second mounting groove (10) have been seted up respectively to first axis body (4) and the terminal surface of second shaft body (7), the inside of first mounting groove (9) is provided with movable block (11), the one end of movable block (11) is fixed with sleeve (15), the inside of sleeve (15) is provided with set post (14), the terminal surface at first mounting groove (9) is fixed in set post (14), the inside of second mounting groove (10) is fixed with drive block (12), the terminal surface of drive block (12) and movable block (11) is laminated each other, just the terminal surface of drive block (12) and movable block (11) all be provided with the inclined plane of the same inclination.

2. The short shaft output shaft structure of the triaxial transmission system of the co-rotating extruder as set forth in claim 1, wherein: the outer portion of the sleeve (15) is sleeved with a top spring (8), and the top spring (8) is located inside the first installation groove (9).

3. The short shaft output shaft structure of the triaxial transmission system of the co-rotating extruder as set forth in claim 1, wherein: the outer wall of the first shaft body (4) and the outer wall of the second shaft body (7) are both provided with a rotating groove (13), the outer wall of the connecting cylinder (6) penetrates through and is fixed with a connecting column (5), and one end of the connecting column (5) is arranged in the rotating groove (13).

4. The short shaft output shaft structure of the triaxial transmission system of the co-rotating extruder as set forth in claim 1, wherein: the longitudinal sections of the movable block (11) and the transmission block (12) are both circular structures, and the outer diameters of the movable block (11) and the transmission block (12) are equal.

5. The short shaft output shaft structure of the triaxial transmission system of the co-rotating extruder as set forth in claim 3, wherein: the outer diameters of the first shaft body (4) and the second shaft body (7) are equal, and the connecting cylinder (6) is in clearance fit connection with the first shaft body (4) and the second shaft body (7).

6. The short shaft output shaft structure of the triaxial transmission system of the co-rotating extruder as set forth in claim 3, wherein: the connecting columns (5) are divided into two groups, and the two groups of connecting columns (5) are symmetrical about the vertical central line of the connecting cylinder (6).