CN210265775U

CN210265775U - Roller belt pulley connecting piece

Info

Publication number: CN210265775U
Application number: CN201921145011.3U
Authority: CN
Inventors: 蔡友根
Original assignee: Jiangsu Runfu Mechanical Roll Manufacturing Co ltd
Current assignee: Jiangsu Runfu Mechanical Roll Manufacturing Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-07
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a roller belt pulley connecting piece, which comprises a rotating shaft, a locking pin, a fixed pin and a belt pulley arranged on the rotating shaft, wherein the rotating shaft comprises a main part and a connecting part, a spline is circumferentially arranged on the connecting part, and a through mounting hole for mounting the locking pin is arranged in the radial direction of the connecting part; the inner ring of the belt pulley is provided with a spline groove matched with the spline, the two radial ends of the inner wall of the belt pulley are provided with a groove and an inclined plane, and the two ends of the locking pin are correspondingly provided with a lug and a concave inclined plane; the pivot axial sets up first fixed orifices, sets up the second fixed orifices that runs through on the stop pin lateral wall, and when belt pulley and pivot were fixed, first fixed orifices aligns with the second fixed orifices, utilizes the fixed pin to be connected first fixed orifices and second fixed orifices. The utility model disperses the torsion through spline fit, thereby prolonging the service life of the connection part of the belt pulley and the rotating shaft; the locking pin is added to prevent the belt pulley from moving axially, and the ingenious inclined planes are matched with each other, so that the belt pulley can be conveniently locked axially by the locking pin.

Description

Roller belt pulley connecting piece

Technical Field

The utility model relates to a belt pulley connecting piece, in particular to roll belt pulley connecting piece.

Background

When the roller is processed and rotated, a strong torque is needed to drive the roller, and the looseness is easily generated at the interface of the belt pulley and the rotating shaft, thereby causing scrapping.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects of the prior art, the utility model discloses a roller belt pulley connecting piece which comprises a rotating shaft, a locking pin, a fixed pin and a belt pulley arranged on the rotating shaft,

the rotating shaft comprises a base part and a connecting part, wherein a spline is circumferentially arranged on the connecting part, and a through mounting hole for mounting the locking pin is arranged in the radial direction of the connecting part;

the inner ring of the belt pulley is provided with a spline groove matched with the spline, two radial ends of the inner wall of the belt pulley are provided with a groove and an inclined plane, and two ends of the locking pin are correspondingly provided with a convex block and a concave inclined plane;

the pivot axial sets up first fixed orifices, set up the second fixed orifices that runs through on the stop pin lateral wall, work as the belt pulley with when the pivot is fixed, first fixed orifices with the second fixed orifices aligns, utilizes the fixed pin will first fixed orifices with the second fixed orifices is connected.

Further, the mounting hole has a stepped configuration therein and a mating stepped configuration is also provided on the locking pin.

Further, the mounting hole is flat, and the locking pin is also flat.

Further, the fixing pin is in threaded fit with the first fixing hole.

Furthermore, a limiting block for limiting the belt pulley to move towards the base is arranged at the joint of the base and the connecting part.

Further, the end of the fixing pin is provided with a chamfer.

The utility model discloses the beneficial effect who gains:

the utility model disperses the torsion through spline fit, thereby prolonging the service life of the connection part of the belt pulley and the rotating shaft; the locking pin is added to prevent the belt pulley from moving axially, and the inclined planes are skillfully matched with each other, so that the belt pulley can be conveniently locked axially by the locking pin; in addition, the installation holes are additionally formed to form a stepped structure, so that the belt pulley is convenient and fast to install.

Drawings

Fig. 1 is a perspective view of a roller pulley connecting piece of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the spindle;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

FIG. 5 is a schematic view of the locking pin;

FIG. 6 is a schematic view of a retainer pin;

FIG. 7 is a schematic view of a pulley;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a cross-sectional view A-A of FIG. 8;

FIG. 10 is a right side view of FIG. 1;

FIG. 11 is a cross-sectional view B-B of FIG. 10;

the reference numbers are as follows:

1. the fixing device comprises a rotating shaft, 2, a locking pin, 3, a fixing pin, 4, a belt pulley, 11, a base part, 12, a connecting part, 13, a first fixing hole, 14, a limiting part, 21, a convex block, 22, a concave inclined plane, 43, an inclined plane, 23, a second fixing hole, 31, a guide angle, 41, a spline, 42, a groove, 43, an inclined plane, 121, a spline groove, 122 and a mounting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

A roller pulley coupling, as shown in FIGS. 1 to 11, comprises a rotating shaft 1, a locking pin 2, a fixing pin 3, and a pulley 4 mounted on the rotating shaft 1,

the rotating shaft 1 comprises a base 11 and a connecting part 12, and the connecting part 12 is used for being connected and fixed with the belt pulley 4. Specifically, the connecting portion 12 is circumferentially provided with spline grooves 121, and the inner wall of the pulley 4 is provided with splines 41 that match the spline grooves 121. When the pulley 4 is mounted on the rotating shaft 1, the spline 41 corresponds to the spline groove 121. Through spline groove 121 and spline 41 cooperation, make torsion dispersion, and then improve the life of pivot 1 and belt pulley 4 junction. A through mounting hole 122 is arranged in the radial direction of the connecting part 12, and the locking pin 2 is arranged in the mounting hole 122; a groove 42 and a slope 43 are provided at corresponding positions on both ends in the radial direction of the inner wall of the pulley 4, and a projection 21 and a concave slope 22 are provided at both ends of the lock pin 2. When the pulley 4 moves axially, the inclined surface 43 is matched with the concave inclined surface 22, so that the end of the locking pin 2 with the projection 21 moves into the groove 42, the rotating shaft 1 is connected with the pulley 4 through the locking pin 2, and the pulley 4 is prevented from moving axially through the locking pin 2. The axial of pivot 1 sets up first fixed orifices 13, sets up the second fixed orifices 23 that runs through on the lateral wall of stop pin 2, and when belt pulley 4 was fixed with pivot 1, first fixed orifices 13 aligns with second fixed orifices 23, utilizes fixed pin 3 to be connected first fixed orifices 13 and second fixed orifices 23. Alternatively, the protrusions 21 and the grooves 42 may be provided with matching slopes, so that when the pulley 4 is removed, the slopes of the protrusions 21 and the grooves 42 cooperate to drive the protrusions 21 of the locking pin 2 out of the grooves 42.

In one embodiment, the mounting hole 122 has a stepped configuration therein and a matching stepped configuration is also provided on the locking pin 2. Through the cooperation of the stepped structure, when the locking pin 2 is installed, the locking pin 2 can only enter from one end of the installation hole 122 and cannot move out from the other end; thereby facilitating the installation of the belt pulley 4 and the rotating shaft 1; compared with the case where the stepped structure is not provided, if the mounting hole 122 is vertically provided, the absence of the stepped structure causes the locking pin 2 to enter from the upper end and exit from the lower end; when the installation is carried out, an operator is required to drag the locking pin to install the lock, so that the installation efficiency is low, and quick installation cannot be carried out.

In one embodiment, the mounting hole 122 is flat, and the locking pin 2 is also flat. Through this kind of structure, fix a position the installation square of locking pin.

In one embodiment, the fixing pin 3 is screw-fitted to the first fixing hole 13. When the fixing device is installed, after the first fixing hole 13 is aligned with the second fixing hole 23, the fixing pin 3 is inserted and then rotated, so that the fixing pin 4 is fixedly connected with the rotating shaft 1, and further the fixing pin 3 is prevented from moving axially.

In one embodiment, a position limiting portion 14 for limiting the movement of the pulley 4 to the base portion 11 is disposed at the connection portion of the base portion 11 and the connecting portion 12.

In one embodiment, the end of the retaining pin 3 is provided with a chamfer 31. By the chamfer 31, it is avoided that the first fixing hole 13 and the second fixing hole 23 are slightly misaligned so that the fixing pin 3 cannot be inserted into the second fixing pin 23.

When the fixing device is used, as shown in fig. 1 to 11, the rotating shaft 1 is rotated to enable the wider end of the mounting hole 122 to be upward, the locking pin 2 is placed in the mounting hole 122, the concave inclined surface 22 protrudes out of the mounting hole 122, then the belt pulley 4 is mounted, the inclined surface 43 pushes the concave inclined surface 22 to enable the locking pin 2 to move upward, then the protruding block 21 is inserted into the groove 42, then the fixing pin 3 is inserted into the first fixing hole 13, and then the fixing pin passes through the second fixing hole 23 and then is fixed with the first fixing hole 13. The belt pulley can be quickly installed.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1. A roller belt pulley connecting piece is characterized by comprising a rotating shaft, a locking pin, a fixing pin and a belt pulley arranged on the rotating shaft,

2. The roll pulley coupling as claimed in claim 1, wherein said mounting hole has a stepped configuration therein and a mating stepped configuration is also provided on said locking pin.

3. The roll pulley coupling as claimed in claim 1, wherein said mounting holes are flat and said locking pins are also flat.

4. The roll pulley coupling as claimed in claim 1, wherein said retaining pin is threadably engaged with said first retaining hole.

5. The roll pulley coupling of claim 1, wherein a stop block is provided at the junction of the base and the coupling portion to limit movement of the pulley toward the base.

6. The roll pulley coupling as claimed in claim 1, wherein the end of the fixing pin is chamfered.