CN210565710U

CN210565710U - Chain wheel shaft

Info

Publication number: CN210565710U
Application number: CN201921556500.8U
Authority: CN
Inventors: 韩昊; 贾成艳; 魏彩林
Original assignee: Gangsu Ronghe Laser Remanufacturing Technology Co ltd
Current assignee: Gangsu Ronghe Laser Remanufacturing Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-19
Anticipated expiration: 2029-09-19

Abstract

The utility model relates to a sprocket shaft, its characterized in that: a plurality of grooves (2) are uniformly formed in the shaft body (1) and used for mounting racks; the bottom of the groove (2) is provided with two threaded holes (3) for inserting bolts to fix the rack; the shaft body (1) is also provided with a chain groove (4), and two end faces of the shaft body (1) are provided with floating seal seats (6). Reasonable in design, simple structure is convenient for install fast and dismantle the rack, has reduced intensity of labour, has practiced thrift the coal mining cost. Because the axis body is thick, though process a plurality of grooves, the intensity of axle still strengthens to some extent, and processing groove is simple high-efficient compared with processing the spline.

Description

Chain wheel shaft

Technical Field

The utility model belongs to the technical field of coal mining machinery equips, concretely relates to sprocket shaft.

Background

At present, the service life of a sprocket shaft group for a coal mine underground conveyor is a key influencing coal mining efficiency, and sprocket teeth of the sprocket shaft group are easy to wear and need to be replaced in time. The equipment for mounting the chain wheel shaft group and the chain wheel shaft group need to be repeatedly disassembled during replacement, thereby wasting time and labor. And the whole sprocket body made of high-quality steel needs to be replaced only due to the abrasion of the sprocket teeth, so that great waste is caused. And the structure is that the inner hole of the chain wheel and the shaft transmit power by a spline or a flat key. The spline of the design has more processing procedures and low processing efficiency; the flat keys mostly adopt the butt keys, so that the strength of the shaft is weakened. The coal mine which aims at high yield and high efficiency is wasted by manpower and material resources.

Disclosure of Invention

The utility model aims at overcoming prior art's defect, providing a brand-new sprocket shaft structure to the problem that exists among the prior art has effectively been solved.

In order to achieve the purpose, the utility model adopts the technical proposal that: a sprocket shaft characterized by: a plurality of grooves are uniformly formed in the shaft body and used for mounting the racks; two threaded holes are formed in the bottom of the groove and used for inserting bolts to fix the rack; the shaft body is also provided with a chain groove, and two end faces of the shaft body are provided with floating seal seats.

And sealing grooves are arranged on the shaft body close to the excircle surfaces of two ends of the groove in the length direction.

The chain groove is matched with the chain groove on the rack.

The utility model has the advantages that: reasonable in design, simple structure is convenient for install fast and dismantle the rack. After the teeth of the chain wheel are worn, the equipment without disassembling the chain wheel shaft group and the chain wheel shaft group can be replaced without replacing the chain wheel body, thereby reducing the labor intensity and saving the coal mining cost. Because the axis body is thick, though process a plurality of grooves, the intensity of axle still strengthens to some extent, and processing groove is simple high-efficient compared with processing the spline.

Drawings

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

3 FIG. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 1 3; 3

In the figure: the sealing device comprises a shaft body 1, a groove 2, a threaded hole 3, a chain groove 4, a sealing groove 5 and a floating seal seat 6.

Detailed Description

The principles of the present invention are described below in conjunction with the appended drawings.

Embodiment 1, see fig. 1-2, a sprocket shaft, comprising: a plurality of grooves 2 are uniformly formed in the shaft body 1 and used for mounting racks; the bottom of the groove 2 is provided with two threaded holes 3 for inserting bolts to fix the rack; the shaft body 1 is further provided with a chain groove 4, and the chain groove 4 is matched with the chain groove on the rack. The two end surfaces of the shaft body 1 are provided with floating seal seats 6. And sealing grooves 5 are arranged on the excircle surfaces of two ends of the shaft body 1 close to the grooves 2 along the length direction.

Claims

1. A sprocket shaft characterized by: a plurality of grooves (2) are uniformly formed in the shaft body (1) and used for mounting racks; the bottom of the groove (2) is provided with two threaded holes (3) for inserting bolts to fix the rack; the shaft body (1) is also provided with a chain groove (4), and two end faces of the shaft body (1) are provided with floating seal seats (6).

2. A sprocket shaft according to claim 1, wherein: and sealing grooves (5) are arranged on the shaft body (1) close to the grooves (2) along the outer circular surfaces of the two ends of the length direction.

3. A sprocket shaft according to claim 1, wherein: the chain groove (4) is matched with the chain groove on the rack.