CN211474703U

CN211474703U - Coupling with two wheels

Info

Publication number: CN211474703U
Application number: CN201821700693.5U
Authority: CN
Inventors: 杨学东; 赵海林; 李海
Original assignee: Yinchuan Yixiang Mining Machinery Manufacturing Co ltd
Current assignee: Yinchuan Yixiang Mining Machinery Manufacturing Co ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-09-11
Anticipated expiration: 2028-10-19

Abstract

A coupling for two wheels is composed of a first coupling, a second coupling and a connecting roller; the first coupling is of a shaft cylinder structure, a first connecting shaft hole is formed along the axis, the connecting end is provided with a connecting plug, and inner roller grooves are uniformly formed in the axial direction of the outer axial surface of the connecting plug; the second coupler is of a shaft cylinder-shaped structure, a second mounting shaft hole is formed along the shaft center, the connecting end is provided with a connecting bearing hole, and outer roller grooves are uniformly formed in the axial direction of the shaft surface in the connecting bearing hole; the first coupler and the second coupler are installed in a matched mode through the connecting plug connector and the connecting bearing hole, and the inner roller grooves in the connecting plug connector and the outer roller grooves in the connecting bearing hole are matched in a one-to-one corresponding mode to form roller grooves; the axial surface of the connecting roller is of an arc-shaped structure and is arranged in a roller groove formed by the inner roller groove and the outer roller groove. Has the advantages that: the installation and the use are convenient, the resistance strength of the transmission torque is improved, the service cycle is prolonged, and the loss of the coupler is reduced.

Description

Coupling with two wheels

Technical Field

The utility model particularly relates to a power plant oil purification device pump and connection wheel of motor.

Background

The motor and the oil pump of the oil purification device of the existing power plant are arranged on an irregular shell, and because the connection of the space limitation of the pair wheels (the diameter of the mounting space of the pair wheels is only phi 48), the friction between the large-point pair wheels and the shell is easy to occur, the existing elastic coupling, pin coupling and diaphragm coupling do not meet the requirements, so that the connection of the small pair wheels of the body type structure can only be selected. Because the power of the used driving motor is 4-level 15 kilowatts, the small-pair wheel coupling device belongs to a high-power motor, and the existing small-pair wheel coupling device is connected by adopting a cylindrical pin and is relatively large in torque during working, the existing small-pair wheel coupling device is very serious in loss, the service life is about one week, the replacement and maintenance are very frequent, the normal production work is seriously influenced, and the equipment maintenance cost is improved.

In view of the above, it is necessary to design a coupling for a pair wheel with a small size, which meets the installation and connection requirements of a motor and an oil pump of an oil purification device, so that the coupling not only has a size meeting the requirement of small space limitation, but also can resist the problem of large torque stress caused by a high-power motor.

Disclosure of Invention

The utility model aims at providing a less novel structure wheel coupling of volume in order to solve the problem that the small-size wheel coupling of the oily purifier motor of power plant and oil pump connection use low enough can't deal with big torque motor of coupling intensity.

In order to realize the purpose, the technical scheme adopted by the coupling of the utility model is that the coupling consists of a first coupling, a second coupling and a connecting roller; the first coupling is of a shaft cylinder-shaped structure, a first mounting shaft hole is formed along the shaft center, the connecting end is provided with a connecting plug, and inner roller grooves are uniformly arranged along the axial direction of the outer shaft surface of the connecting plug; the second coupler is of a shaft cylinder-shaped structure, a second mounting shaft hole is formed along the shaft center, the connecting end is provided with a connecting bearing hole, and outer roller grooves are uniformly formed in the axial direction of the shaft surface in the connecting bearing hole; the first coupler and the second coupler are installed in a matched mode through the connecting plug connector and the connecting bearing hole, and the inner roller grooves in the connecting plug connector and the outer roller grooves in the connecting bearing hole are matched in a one-to-one corresponding mode to form roller grooves; the axial surface of the connecting roller is of an arc-shaped structure and is arranged in a roller groove formed by the inner roller groove and the outer roller groove.

And a positioning key groove, a pre-tightening screw hole and a positioning shaft shoulder structure are respectively arranged on the first mounting shaft hole of the first coupler and the second mounting shaft hole of the second coupler.

The inner roller groove on the connecting plug and the outer roller groove on the connecting bearing hole are respectively half cylindrical roller grooves which are cut along the axial direction and are butted together to form an integral cylindrical roller groove.

The connecting rollers are centrosymmetric along the axis, the connecting rollers are axially symmetrically arranged along two ends of the central position, and the diameter of the central axial surface is the largest.

The beneficial effects of the utility model reside in that: the two parts of structures are respectively installed and adjusted, and the connecting roller can be automatically centered and adjusted, so that the installation and the use are convenient; the resistance strength of the transmission torque is improved by utilizing the uniformly distributed roller groove structure, and the loss of the coupler is reduced; the service cycle is long, and the maintenance cost is reduced, so that the production cost is reduced, and the comprehensive economic benefit is improved.

Drawings

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

fig. 2 is a schematic structural view of a first coupling of the present invention;

fig. 3 is a schematic structural view of a second coupling of the present invention;

FIG. 4 is a schematic view of the structure of the connecting roller of the present invention;

in the drawings: the coupling comprises a first coupling 1, a first mounting shaft hole 11, a connecting plug 12, an inner roller groove 13, a second coupling 2, a second mounting shaft hole 21, a connecting bearing hole 22, an outer roller groove 23, a connecting roller 3 and a shaft surface 31.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

with the attached drawings, the coupling of the utility model consists of a first coupling 1, a second coupling 2 and a connecting roller 3; the first coupling 1 is of a shaft cylinder structure, a first installation shaft hole 11 is formed along the shaft center, a connecting plug 12 is arranged at the connecting end, and inner roller grooves 13 are uniformly arranged along the axial direction of the outer shaft surface of the connecting plug 12; the second coupler 2 is of a shaft cylinder-shaped structure, a second mounting shaft hole 21 is formed along the shaft center, a connecting end is provided with a connecting bearing hole 22, and outer roller grooves 23 are uniformly arranged along the axial direction of the inner shaft surface of the connecting bearing hole 22; the first coupler 1 and the second coupler 2 are installed in a matched mode through the connecting plug-in connector 12 and the connecting bearing hole 22, and the inner roller grooves 13 in the connecting plug-in connector 12 are matched with the outer roller grooves 23 in the connecting bearing hole 22 in a one-to-one corresponding mode to form roller grooves; the axial surface 31 of the connecting roller 3 is of an arc structure and is arranged in a roller groove formed by the inner roller groove 13 and the outer roller groove 23.

And a positioning key groove, a pre-tightening screw hole and a positioning shaft shoulder structure are respectively arranged on the first mounting shaft hole 11 of the first coupler 1 and the second mounting shaft hole 21 of the second coupler 2.

The inner roller groove 13 on the connecting plug 12 and the outer roller groove 23 on the connecting bearing hole 22 are respectively half cylindrical roller grooves cut along the axial direction and are butted together to form an integral cylindrical roller groove.

The connecting rollers 3 are symmetrical along the center of the axis, the two ends of the connecting rollers are symmetrically arranged along the center of the connecting rollers in the axial direction, and the diameter of the central axial surface is the largest.

Examples

As shown in the attached figure 1, the utility model discloses the wheel coupling, first shaft coupling 1 and second shaft coupling 2 are installed on the output shaft and the input shaft of oil purifier motor and oil pump through first installation shaft hole 11 and second installation shaft hole 21 respectively. When the first coupler 1 and the second coupler 2 are installed and connected, firstly, one connecting roller 3 is respectively installed in the inner roller groove 13 of the connecting plug 12, then the connecting bearing hole 22 of the second coupler 2 is aligned with the connecting plug 12 of the first coupler 1, the outer roller grooves 23 on the connecting bearing hole 22 are aligned with the inner roller grooves 13 one by one through rotation, and the outer roller grooves 23 are assembled and connected in place along the connecting rollers 3 installed on the inner roller grooves 13. And finally, the motor of the oil purification device and the output shaft and the input shaft of the oil pump are respectively and axially connected and fixed with the first coupler 1 and the second coupler 2 through pretightening bolts after the first coupler 1 and the second coupler 2 are installed and connected.

During operation, the motor output shaft drives the oil pump operation through the coupling, namely the first coupling 1 drives the second coupling 2 to rotate, and the inner roller groove 13 of the first coupling 1 transmits torque on the outer roller groove 23 of the second coupling 2 through the uniformly arranged connecting rollers 3. The roller structure that evenly sets up in the operation process has increased the area of action of moment through the cooperation in interior roller groove 13 and outer roller groove 23, has reduced stress injury, and the arc axial plane structure of connecting roller 3 can the automatic adjustment centering.

Claims

1. A coupling for a pair of wheels, characterized in that: the device is composed of a first coupling (1), a second coupling (2) and a connecting roller (3); the first coupling (1) is of a shaft cylinder structure, a first mounting shaft hole (11) is formed along the axis, the connecting end is provided with a connecting plug (12), and inner roller grooves (13) are uniformly arranged along the axial direction of the outer axial surface of the connecting plug (12); the second coupler (2) is of a shaft cylinder-shaped structure, a second mounting shaft hole (21) is formed along the shaft center, the connecting end is provided with a connecting bearing hole (22), and outer roller grooves (23) are uniformly arranged along the axial direction of the inner shaft surface of the connecting bearing hole (22); the first coupler (1) and the second coupler (2) are installed in a matched mode through the connecting plug connector (12) and the connecting bearing hole (22), and the inner roller grooves (13) in the connecting plug connector (12) are matched with the outer roller grooves (23) in the connecting bearing hole (22) in a one-to-one corresponding mode to form roller grooves; the axial surface (31) of the connecting roller (3) is of an arc structure and is arranged in a roller groove formed by the inner roller groove (13) and the outer roller groove (23).

2. The wheel coupling of claim 1, wherein: and a positioning key groove, a pre-tightening screw hole and a positioning shaft shoulder structure are respectively arranged on a first mounting shaft hole (11) of the first coupler (1) and a second mounting shaft hole (21) of the second coupler (2).

3. The wheel coupling of claim 1, wherein: the inner roller groove (13) on the connecting plug (12) and the outer roller groove (23) on the connecting bearing hole (22) are respectively half cylindrical roller grooves which are cut along the axial direction and are butted together to form a whole cylindrical roller groove.

4. The wheel coupling of claim 1, wherein: the connecting rollers (3) are symmetrical along the center of the axis, the two ends of the connecting rollers are symmetrically arranged along the center of the connecting rollers in the axial direction, and the diameter of the central axial plane is the largest.