CN219198054U

CN219198054U - Anti-drop type center shaft structure with good anti-seismic performance

Info

Publication number: CN219198054U
Application number: CN202320066313.1U
Authority: CN
Inventors: 邢艮娣
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-16
Anticipated expiration: 2033-01-05

Abstract

The utility model relates to the technical field of center shafts, and particularly discloses an anti-drop center shaft structure with good anti-seismic performance. The utility model has simple structure and reasonable design, can effectively prolong the service life of the middle shaft, prevent the rotary shaft and the bearing from falling from the shaft sleeve, avoid the damage of the whole feeding structure and materials, prolong the service life of the feeding machine and meet the industrial requirements.

Description

Anti-drop type center shaft structure with good anti-seismic performance

Technical Field

The utility model relates to the technical field of center shafts, in particular to an anti-drop center shaft structure with good anti-seismic performance.

Background

In a full-automatic feeder, a center shaft is the most commonly used mechanical structure, and materials are pushed by connecting a material clamp; the axis includes pivot and axle sleeve, and the axle sleeve is used for spacing in order to restrict the axial displacement of pivot to the pivot, and the installation needs to wear to locate the inside of axle sleeve to the pivot, through inwards extrudeing the head of axle sleeve, makes the inner wall of axle sleeve inwards sunken, fixes the pivot in the axle sleeve.

When the existing middle shaft runs for a long time, the rotation speed of the middle shaft is high, the concave part of the shaft sleeve is prone to cracking, so that the connection between the rotating shaft and the shaft sleeve is loose, the head part connected with the material clamp starts to swing, vibration is caused at the concave part, cracks of the concave part of the shaft sleeve are further aggravated, the concave part of the shaft sleeve is further broken, the rotating shaft and the bearing fall from the shaft sleeve, the whole feeding structure and materials are prone to damage, the feeding machine cannot be used normally, and industrial requirements cannot be met.

Disclosure of Invention

Aiming at the defects in the prior art, the anti-drop center shaft structure with good anti-seismic performance is provided by the utility model, the structure is simple, the design is reasonable, the service life of the center shaft can be effectively prolonged, the rotating shaft and the bearing are prevented from falling from the shaft sleeve, the damage to the whole feeding structure and materials is avoided, the service life of the feeding machine is prolonged, and the industrial requirements can be met.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an anticreep formula axis structure with good shock resistance, including pivot and axle sleeve, install in the axle sleeve, be equipped with five bearings in the axle sleeve, the inner wall of axle sleeve is equipped with the step face, the step face stretches out by the inner wall of axle sleeve, and separate five bearings in the axle sleeve into first bearing group and second bearing group, first bearing group and second bearing group set up respectively in the left and right sides of step face, and the step face is located between first bearing group and the second bearing group, can effectively disperse the power that the axis received when rotating through setting up the step face, the afterbody of pivot passes first bearing group and second bearing group, and the afterbody of pivot is equipped with the screw, and through in the screw in screw, fix five bearings in the pivot, when the concave part fracture of axle sleeve, because the step face is located between first bearing group and the second bearing group, second bearing group supports on the step face, bearing and pivot all can't drop from the axle sleeve.

In the above description, preferably, the two step surfaces are disposed opposite to each other, an interval is disposed between the opposite surfaces of the two step surfaces, a first sleeve is disposed at the interval, and when the rotating shaft passes through the first bearing group and the second bearing group separated by the step surfaces, the rotating shaft passes through the first sleeve at the same time, so that friction collision between the rotating shaft and the step surfaces is avoided, and the rotating shaft rotates more smoothly.

In the above description, preferably, the right side of the first sleeve extends beyond the space, the right side of the first sleeve abuts against the second bearing group on the right side, the second bearing group is connected with the first sleeve by screwing the screw into the screw hole, and meanwhile, the second bearing group is arranged at intervals between the second bearing group and the step surface, so that the second bearing group is prevented from being attached to the step surface, and abrasion is avoided to the second bearing group.

In the above description, preferably, the rotating shaft is provided with a second sleeve, the second sleeve is mounted in the shaft sleeve, and the inner wall of the shaft sleeve is recessed inwards and abuts against the outer wall of the second sleeve, so that the rotating shaft is mounted in the shaft sleeve through the second sleeve.

The beneficial effects of the utility model are as follows: through setting up the step face, the step face is stretched out by the inner wall of axle sleeve, become first bearing group and second bearing group with five bearings in the axle sleeve, and the step face is located between first bearing group and the second bearing group, the power that receives when can effectively dispersing the axis rotation through setting up the step face, the bearing is passed to the one end of pivot, and fix five bearings in the pivot through the screw rod, when the concave part fracture of axle sleeve, because the step face is located between first bearing group and the second bearing group, the second bearing group supports on the step face, bearing and pivot all can't drop from the axle sleeve, can effectively prevent that pivot and bearing from dropping from the axle sleeve, avoid whole pay-off structure and material to appear damaging, the life of extension feeder, can satisfy industry demand.

Drawings

Fig. 1: an assembly structure of the embodiment of the utility model is shown schematically;

fig. 2: is a schematic diagram of an exploded structure of an embodiment of the utility model;

fig. 3: a schematic diagram of a connection structure between a rotating shaft and a bearing according to an embodiment of the present utility model;

fig. 4: a sleeve cross-sectional structure schematic diagram of an embodiment of the utility model;

fig. 5: a schematic sectional structure of an assembled state of the embodiment of the utility model;

fig. 6: a cross-sectional view of the mounting structure of the sleeve and the second sleeve according to an embodiment of the present utility model;

fig. 7: a first sleeve structure of an embodiment of the present utility model is shown schematically;

the attached drawings are used for identifying and describing: 10-rotating shaft, 11-shaft sleeve, 12-bearing, 13-step surface, 14-first sleeve, 15-screw, 16-second sleeve, 17-first bearing group and 18-second bearing group.

Detailed Description

For a clearer description of the structural features, technical means, and specific objects and functions achieved by the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments:

this embodiment: as shown in fig. 1 to 7, the anti-falling center shaft structure with good anti-seismic performance comprises a rotating shaft 10 and a shaft sleeve 11, and is arranged in the shaft sleeve 11, five bearings 12 are arranged in the shaft sleeve 11, a step surface 13 is arranged on the inner wall of the shaft sleeve 11, the step surface 13 extends out of the inner wall of the shaft sleeve 11 and separates the five bearings 12 in the shaft sleeve 11 into a first bearing group 17 and a second bearing group 18, the first bearing group 17 comprises four bearings 12, the second bearing group 18 is one bearing 12, the first bearing group 17 and the second bearing group 18 are respectively arranged on the left side and the right side of the step surface 13, the step surface 13 is positioned between the first bearing group 17 and the second bearing group 18, the tail of the rotating shaft 10 passes through the first bearing group 17 and the second bearing group 18, a screw hole is arranged at the tail of the rotating shaft 10, the five bearings 12 are fixed on the rotating shaft 10 through the screw 15 screwed into the screw hole, when the concave position of the shaft sleeve 11 is broken, since the step surface 13 is located between the first bearing group 17 and the second bearing group 18, the second bearing group 18 is abutted against the step surface 13, the bearing 12 and the rotating shaft 10 cannot fall from the shaft sleeve 11, the step surface 13 is provided with two, the two step surfaces 13 are oppositely arranged, a space is arranged between the opposite surfaces of the two step surfaces 13, a first sleeve 14 is arranged at the space, when the rotating shaft 10 passes through the first bearing group 17 and the second bearing group 18 separated by the step surface 13, and simultaneously passes through the first sleeve 14, the rotating shaft 10 and the step surface 13 are prevented from finding friction collision, so that the rotating shaft 10 rotates more smoothly, the right side of the first sleeve 14 extends out of the space, the right side of the first sleeve 14 is abutted against the right side of the second bearing group 18, the second bearing group 18 is connected with the first sleeve 14 through a screw 15 screwed into a screw hole, and meanwhile, the second bearing group 18 and the step surface 13 are arranged at the space, the second bearing group 18 is prevented from being attached to the step surface 13, so that abrasion is caused to the second bearing group 18, the second sleeve 16 is arranged on the rotating shaft 10, the second sleeve 16 is arranged in the shaft sleeve 11, the inner wall of the shaft sleeve 11 is recessed inwards and abutted against the outer wall of the second sleeve 16, and the rotating shaft 10 is arranged in the shaft sleeve 11 through the second sleeve 16.

When the feeding device is used, the head of the rotating shaft 10 is connected with the material clamp for pushing materials, four of the five bearings 12 are placed on the left side of the step surface 13, the other one is placed on the right side of the step surface 13, the tail of the rotating shaft 10 is inserted into the shaft sleeve 11 and penetrates through the five bearings 12 and the first sleeve 14 in the shaft sleeve 11, the tail of the rotating shaft 10 is connected with the screw 15, the positions of the five bearings 12 are limited by the screw 15, the bearings 12 are prevented from falling from the rotating shaft 10, when the rotating shaft 10 is used for conveying materials for a long time and at a high rotating speed, the force applied when the middle shaft rotates can be effectively dispersed by the step surface 13, the service life of the middle shaft is prolonged, when the concave part of the shaft sleeve 11 breaks, shaking and vibration are generated by the materials and the material clamp, and the force of vibration can be dispersed to the step surface 13, and even if the concave part of the step surface 13 is positioned between the two groups of bearings 12, one group of bearings 12 is propped against the step surface 13, the bearing 12 and the rotating shaft sleeve 11 cannot fall from the shaft sleeve 11, the bearing 12 and the bearing 12 can be effectively prevented from falling from the shaft sleeve 11, the whole feeding structure and the bearing 12 from falling from the shaft sleeve 11, the service life of the whole feeding structure can be effectively prevented, and the service life of the feeding machine can be prolonged, and the service life of the feeding machine can be met.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, so any modifications, equivalents, improvements, etc. of the above embodiments according to the present utility model are still within the scope of the present utility model.

Claims

1. The utility model provides an anticreep formula axis structure with good shock resistance, includes pivot and axle sleeve, is equipped with a plurality of bearings in the axle sleeve, and the afterbody of pivot passes the bearing, installs in the axle sleeve, its characterized in that: the inner wall of the shaft sleeve is provided with a step surface which separates a plurality of bearings in the shaft sleeve.

2. The anti-drop center shaft structure with good anti-seismic performance according to claim 1, wherein: the two step surfaces are arranged oppositely, a space is arranged between the opposite surfaces of the two step surfaces, and a first sleeve is arranged at the space.

3. The anti-drop center shaft structure with good anti-seismic performance according to claim 2, wherein: the right side of the first sleeve extends out of the interval.

4. The anti-drop center shaft structure with good anti-seismic performance according to claim 1, wherein: the rotating shaft is provided with a second sleeve, and the second sleeve is arranged in the shaft sleeve.