CN216306025U - Rotor machine with axial positioning function and power equipment - Google Patents

Abstract

The utility model belongs to the technical field of engines, and provides a rotor machine with axial positioning and power equipment. The rotor machine with the axial positioning function comprises a positioning disc, a positioning disc and a positioning disc, wherein the positioning disc is arranged at one end of a gear at the position of a front end cover of the rotor machine; the first needle bearing and the second needle bearing are respectively arranged at two ends of the positioning disc; the first needle bearing is also contacted with a shaft shoulder of the eccentric shaft through a first gasket; the second needle bearing is also contacted with the balance weight through a second gasket; and the locking nut is used for locking and positioning the eccentric shaft in the axial direction.

Description

A kind of rotor machine and power equipment with axial positioning

technical field

The utility model belongs to the technical field of engines, in particular to a rotor machine with axial positioning and power equipment.

Background technique

The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

For the structure and positioning of the eccentric shaft of the rotor machine, most of the eccentric shafts adopt a multi-step structure, and the axial positioning mostly adopts standard cylindrical roller bearings. Due to the structural requirements of cylindrical roller bearings, there must be a positioning shoulder and bearing end cover, which increases the axial length of the eccentric shaft and the whole machine, and at the same time increases the weight of the whole machine.

Utility model content

In order to solve the technical problems existing in the above-mentioned background art, the present invention provides a rotor machine and power equipment with axial positioning, which can reduce the volume of the rotor machine and increase the specific power of the rotor machine.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A first aspect of the present invention provides a rotor machine with axial positioning, comprising:

A positioning plate, which is installed at one end of the gear at the position of the front end cover of the rotor machine;

The first needle roller bearing and the second needle roller bearing are respectively installed on both ends of the positioning plate; the first needle roller bearing is also in contact with the shoulder of the eccentric shaft through the first washer; the second needle roller bearing Also in contact with the counterweight through the second spacer;

The lock nut is used for the axial locking and positioning of the eccentric shaft.

As an embodiment, the shafts of the first needle roller bearing, the second needle roller bearing, the positioning plate and the second spacer are all in axial contact with the spacer.

As an embodiment, the thickness of the spacer is the gap between the first needle roller bearing and the second needle roller bearing.

As an embodiment, the balance weight is also in contact with the sprocket.

As an embodiment, the sprocket is also in contact with the pulley.

As an embodiment, the outer side of the eccentric shaft is further provided with a bearing bush.

As an embodiment, the outer side of the rotor machine with axial positioning is further provided with a cover.

A second aspect of the present invention provides a power plant comprising a rotor machine with axial positioning as described above.

As an embodiment, the rotor machine is arranged outside the stator.

As an embodiment, a casing is further provided outside the power equipment.

Compared with the prior art, the beneficial effects of the present utility model are:

In the utility model, a positioning plate is installed at the position of the front end cover of the rotor machine, a first needle roller bearing and a second needle roller bearing are respectively installed at both ends of the positioning plate, and the first needle roller bearing also passes through the first gasket and the shaft of the eccentric shaft. Shoulder contact, the second needle roller bearing is also in contact with the balance weight through the second washer, and the axial locking and positioning of the eccentric shaft by the lock nut completes the axial positioning of the eccentric shaft, so that the entire eccentric shaft is in the axial length. The reduction is obvious, the volume of the whole machine is reduced, and the weight is reduced.

The shafts of the first needle roller bearing, the second needle roller bearing, the positioning plate and the second gasket of the utility model are all in axial contact with the spacer sleeve, and the needle roller bearing clearance can be adjusted by adjusting the thickness of the spacer sleeve to ensure that good exercise condition.

Advantages of additional aspects of the invention will be set forth in part in the description that follows, and parts will be apparent from the description below, or learned by practice of the invention.

Description of drawings

The accompanying drawings, which form a part of the present invention, are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

1 is a schematic structural diagram of a rotor machine with axial positioning according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a conventional rotor machine with axial positioning.

Among them, 1 eccentric shaft, 2 bearing bush, 3 gear, 4 front end cover, 5 positioning plate, 6 first gasket, 7 first needle bearing, 8 spacer, 9 second needle bearing, 10 second gasket, 11 Counterweight, 12 Sprocket, 13 Pulley, 14 Lock Nut, 15 Cover, 16 Rotor, 17 First Cylindrical Roller Bearing, 18 First Cylindrical Roller Bearing End Cover, 19 Front Cover, 20 Copper Sleeve, 21 Second cylindrical roller bearing, 22 second cylindrical roller bearing end cap.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

It should be noted that the following detailed descriptions are all exemplary and are intended to provide further explanation of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It should be noted that the terminology used herein is for describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

Example 1

Figure 2 shows a schematic structural diagram of a conventional rotor machine with axial positioning. In FIG. 2, the eccentric shaft 1 in the rotor 16 has a multi-step structure, and the cylindrical roller bearings used are the first cylindrical roller bearing 17 and the second cylindrical roller bearing 21, respectively. The use structure requires a positioning shoulder and a bearing end cover. Therefore, end covers are installed on the end surfaces of the first cylindrical roller bearing 17 and the second cylindrical roller bearing 21. The end surface of the first cylindrical roller bearing 17 is installed on the end surface. There is a first cylindrical roller bearing end cover 18 , and a second cylindrical roller bearing end cover 22 is mounted on the end face of the second cylindrical roller bearing 21 . The axial positioning structure in Fig. 2 increases the axial length of the eccentric shaft and the whole machine, and at the same time increases the weight of the whole machine.

In order to solve the above-mentioned technical problems existing in FIG. 2 , the present embodiment provides a rotor machine with axial positioning, referring to FIG. 1 , which includes:

A positioning plate 5, which is installed at one end of the gear 3 at the position of the front end cover 4 of the rotor machine;

The first needle roller bearing 7 and the second needle roller bearing 9 are respectively installed on both ends of the positioning plate 5; the first needle roller bearing 7 is also in contact with the shoulder of the eccentric shaft 1 through the first washer 6; The second needle bearing 9 is also in contact with the counterweight 11 through the second washer 10;

The lock nut 14 is used for the axial locking and positioning of the eccentric shaft 4 .

As a specific embodiment, the shafts of the first needle roller bearing 7 , the second needle roller bearing 9 , the positioning plate 5 and the second washer 10 are all in axial contact with the spacer 8 . The thickness of the spacer 8 is the gap between the first needle bearing 7 and the second needle bearing 9. In this way, the needle roller bearing clearance can be adjusted by adjusting the thickness of the spacer to ensure a good movement state.

In FIG. 1 , the counterweight 11 is also in contact with the sprocket 12 . The sprocket 12 also pulls in contact with the belt 13 .

In a specific implementation, a bearing bush 2 is also provided outside the eccentric shaft 1 . The outer side of the rotor machine with axial positioning is also provided with a cover 15 .

In this embodiment, a positioning plate is installed at the position of the front end cover of the rotor machine, and a first needle roller bearing and a second needle roller bearing are respectively installed at both ends of the positioning plate. The first needle roller bearing also passes through the first washer and the shaft of the eccentric shaft. Shoulder contact, the second needle roller bearing is also in contact with the balance weight through the second washer, and the axial locking and positioning of the eccentric shaft by the lock nut completes the axial positioning of the eccentric shaft, so that the entire eccentric shaft is in the axial length. The reduction is obvious, the volume of the whole machine is reduced, and the weight is reduced.

Embodiment 2

This embodiment provides a power plant comprising a rotor machine with axial positioning as described above.

In some embodiments, the rotor machine is arranged outside the stator.

In other embodiments, a casing is further provided outside the power equipment.

It should be noted here that the other structures of the power equipment are all existing structures, which will not be described here.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A rotor machine with axial positioning is characterized in that, comprising: A positioning plate, which is installed at one end of the gear at the position of the front end cover of the rotor machine; The first needle roller bearing and the second needle roller bearing are respectively installed on both ends of the positioning plate; the first needle roller bearing is also in contact with the shoulder of the eccentric shaft through the first washer; the second needle roller bearing Also in contact with the counterweight through the second spacer; The lock nut is used for the axial locking and positioning of the eccentric shaft. 2 . The rotor machine with axial positioning according to claim 1 , wherein the shafts of the first needle roller bearing, the second needle roller bearing, the positioning plate and the second spacer are all connected with the spacer shaft. 3 . to contact. 3 . The rotor machine with axial positioning according to claim 2 , wherein the thickness of the spacer is the gap between the first needle roller bearing and the second needle roller bearing. 4 . 4. The rotor machine with axial positioning of claim 1, wherein the counterweight is also in contact with the sprocket. 5. The rotor machine with axial positioning of claim 4, wherein the sprocket is also in contact with the pulley. 6 . The rotor machine with axial positioning according to claim 1 , wherein a bearing bush is further provided outside the eccentric shaft. 7 . 7 . The rotor machine with axial positioning according to claim 1 , wherein a cover is further provided on the outer side of the rotor machine with axial positioning. 8 . 8. A power plant, characterized by comprising a rotor machine with axial positioning as claimed in any one of claims 1-7. 9. The power plant of claim 8, wherein the rotor machine is disposed outside the stator. 10 . The power plant according to claim 8 , wherein a casing is further provided outside the power plant. 11 .

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