CN104300733B - The coupling arrangement that a kind of motor is loaded with connection - Google Patents

Abstract

The invention relates to a coupling device for connecting a motor to a load. In order to solve the problem that the non-shaft end of the traditional motor can only be equipped with an impeller, and the power transmission device of the shaft extension and the load has a complex structure and a large space occupied by the transmission, it includes a motor base , rotating shaft, end cover, bearing, bearing cover and load input shaft, which are characterized in that: the bearing cover at the non-shaft extension end of the rotating shaft is arranged inside the end cover, and a connecting bracket is arranged outside the end cover, and the bearing cover and the connecting bracket are composed of The connecting piece is fixed on both sides of the end cover; the far end of the connecting bracket is connected with the load casing; the non-shaft extension end of the rotating shaft and the load input shaft extend into the inside of the connecting bracket, and a coupling is non-rotatably connected between the two. The invention has the advantages of compact structure, simple assembly and disassembly, few components and low manufacturing cost.

Description

A coupling device for an electric motor and a coupled load

technical field

The invention relates to a motor structurally connected to a mechanical load, in particular to a coupling device for connecting a motor to a load.

Background technique

We know that the rotating shaft of a traditional motor is supported by bearings on the end covers at both ends of the machine base. The non-extending end of the rotating shaft is used to install the impeller to reduce the temperature of the motor; power transmission. The power transmission coupling device mainly includes a conventional pulley transmission, a chain transmission, a gear transmission, etc. The conventional transmission disclosed above has a complex structure and a large transmission space, and is not suitable for specific occasions where the transmission space is small.

Contents of the invention

In order to overcome the disadvantages in the prior art that the non-shaft extension end of the motor can only be equipped with an impeller, and the power transmission device between the shaft extension end and the load has a complex structure and a large space for the transmission, the present invention provides a compact structure, low manufacturing cost, dismantling Install a simple motor and a coupling device that connects the load.

The technical scheme adopted by the present invention to solve the technical problem is: a coupling device for connecting a motor to a load, including a motor base, a rotating shaft, two end covers, two bearings, two bearing covers and a load input shaft, two ends The covers are respectively assembled on both ends of the motor base, and the two bearings are respectively assembled in the bearing chambers of the end covers. The shaft extension end and the non-shaft extension end of the rotating shaft are respectively supported by the bearings. The bearing cover at the shaft extension end of the rotating shaft The outer positioning is on one end cover, and it is characterized in that: the bearing cover at the non-shaft extension end of the rotating shaft is arranged inside the other end cover, and a connecting bracket is arranged outside the end cover, and the bearing cover and the connecting bracket are fixed on the connecting piece. On both sides of the end cover, and axially position the bearing in the bearing chamber of the end cover; the far end of the coupling bracket is connected with the load housing; the non-shaft extension end of the rotating shaft and the load input shaft extend into the coupling bracket Inside, a coupling is non-rotatably connected between the non-shaft extension end of the rotating shaft and the load input shaft.

A skeleton sealing ring is arranged between the non-shaft extension end of the rotating shaft and the coupling bracket.

The connection between the distal end of the connection bracket and the load casing is flange connection.

The non-rotational connection between the non-extension end of the rotating shaft and the coupling is a screw stop connection, and an assembly hole is opened on the coupling bracket corresponding to the screw stop connection.

The non-rotational connection between the load input shaft and the coupling is a keyed connection.

In the present invention, a coupling bracket is provided outside the end cover of the non-shaft extension end of the motor, and the far end of the coupling bracket is fixedly connected with the load casing. The non-shaft extension end of the rotating shaft and the load input shaft are non-rotating using a coupling connect. The coupling device of the present invention makes the structure of the motor and the load transmission compact, and the transmission takes up less space; the bearing cover and the coupling bracket are assembled on both sides of the end cover by the same connecting piece, the coupling bracket and the load shell are connected by the connecting piece, and the rotating shaft The non-shaft extension end and the load input shaft are connected by a coupling, which is easy to disassemble and easy to replace and repair; the invention uses few parts and low manufacturing cost.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is a kind of structural representation of the present invention.

Marks in the figure: 1. Connecting bracket, 101. Assembly hole, 2. Connecting bolt, 3. Screw, 4. Load shell, 5. Load input shaft, 6. Coupling, 7. Skeleton sealing ring, 8. End cover , 9. Shaft, 901. Non-shaft end, 10. Bearing, 11. Bearing cover, 12. Motor base.

detailed description

As shown in FIG. 1 , a coupling device for connecting a motor to a load includes a motor base 12 , a rotating shaft 9 , an end cover, a bearing, a bearing cover, and a load input shaft 5 .

The end covers are installed on both ends of the motor base 12 respectively, and the bearings are respectively assembled in the bearing chambers of the end covers. The shaft extension end and non-shaft extension end 901 of the rotating shaft 9 are respectively supported by the bearings. The cover is positioned circumstantially on one end cover. Wherein, the assembly relationship between the shaft extension end of the rotating shaft 9, the shaft extension end cover, and the shaft extension end bearing is the same as that of the prior art (not shown in the figure).

In Fig. 1, the bearing cover 11 at the non-shaft extension end 901 of the rotating shaft 9 is arranged inside the other end cover 8, and a coupling bracket 1 is arranged outside the end cover 8, and the bearing cover 11 and the coupling bracket 1 are connected by corresponding connecting bolts 2 It is fixed on both sides of the end cover 8 and axially locates the bearing 10 in the bearing chamber of the end cover 8 .

As shown in FIG. 1 , the distal end of the connecting bracket 1 and the load housing 4 are fixed by flange connection.

In FIG. 1 , the non-extending end 901 of the rotating shaft 9 and the load input shaft 5 extend into the coupling bracket 1 , and a shaft coupling 6 is non-rotatably connected between the non-extending end 901 of the rotating shaft 9 and the load input shaft 5 . Wherein, the non-rotational connection between the load input shaft 5 and the coupling 6 is a key connection; the non-rotational connection between the non-shaft extension end 901 of the rotating shaft 9 and the coupling 6 is a stop connection with the screw 3 .

As shown in FIG. 1 , in order to facilitate disassembly and assembly of the shaft coupling 6 , an assembly hole 101 is opened on the coupling bracket 1 corresponding to the screw stop joint.

The shaft coupling 6 adopts a conventional self-aligning type coupling to ensure the coaxiality requirements of the non-shaft extension end 901 of the rotating shaft 9 and the load input shaft 5 .

In order to improve the sealing performance of the non-shaft extension end 901 of the motor, as shown in FIG. 1 , a skeleton sealing ring 7 is provided between the coupling bracket 1 and the non-shaft extension end 901 of the rotating shaft 9 .

The invention makes the electric motor and the load transmission structure compact, the transmission takes up little space, is easy to assemble and disassemble, uses few parts, and has low manufacturing cost.

Claims (1)

1. a kind of motor with connection load coupling arrangement, including a motor bed-plate, a rotating shaft, two end cap, two bearings, two Bearing cap and a load input shaft, two end cap is respectively assembled at the two ends of motor bed-plate, and correspondence is assemblied in end to two bearings respectively The bearing of lid is indoor, and the described axle stretch end of rotating shaft, non-shaft stretching end are respectively by bearing rotational support, the bearing at rotating shaft axle stretch end Lid outside fix cover at one end it is characterised in that：Bearing cap at rotating shaft non-shaft stretching end is arranged on inside another end cap, at this end Outer side of lid is provided with a connecting rack, and described bearing cap is fixed on this end cap both sides with connecting rack by connector, and by this end The indoor bearing axially position of lid bearing；The far-end of described connecting rack and load shell are connected；Described rotating shaft non- Axle stretch end, load input shaft stretch into inside connecting rack, nonrotationally couple between the non-shaft stretching end and load input shaft of rotating shaft There is a shaft coupling；It is provided with a backbone sealing ring between the non-shaft stretching end and connecting rack of described rotating shaft；Wherein, described negative Carry input shaft to couple for key connecting with the nonrotational of shaft coupling；The non-shaft stretching end of described rotating shaft is coupled with the nonrotational of shaft coupling For screw stop connection, to a pilot hole should be had on the connecting rack of screw stop connection place.