Traction machine of self-aligning bearing structure

Abstract

The utility model discloses a traction machine with a self-aligning bearing structure, which comprises a machine base body, a cavity is arranged in the machine base body, a stator iron core with a winding and a rotor are arranged in the cavity, a traction wheel is arranged outside the rotor, the rotor is connected with a main shaft, and the main shaft is connected with the traction wheel. A self-aligning roller bearing is arranged between the rotor and the machine base body, and a deep groove ball bearing is arranged between the main shaft and the machine base body. The self-aligning roller bearing and the deep groove ball bearing are matched for use, so that the stability and the reliability of a bearing system can be further improved, and the operation stability of the traction machine is improved; according to the structure, the rotor and the main shaft can be machined at the same time, the machining cost is reduced, and the concentricity of the two bearings can be guaranteed. The turning holes are formed in the front side and the rear side of the machine base body respectively, the proper turning holes can be selected for operation according to the size of a use site, and more requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of traction machine, especially a traction machine of self-aligning bearing structure. BACKGROUND

[0002] In the manufacturing field of traction machine, the traditional traction machine bearing structure often adopts single bearing type, often faces the problems of main shaft misalignment, deflection and the like, these problems can cause local stress concentration and abnormal wear, seriously affect the service life and operation stability of the traction machine. In addition, the traditional processing mode often cannot guarantee the concentricity of the rotor and the main shaft, causing vibration and noise during the operation of the traction machine, and even causing serious problems such as bearing damage. In addition, when the traction machine is used in different places, the turning operation of the traction machine is often limited by the size of the place, so that the turning operation cannot be effectively carried out in some occasions, thereby affecting the use and maintenance efficiency of the traction machine. During the operation of the traction machine, the machine base body often bears a large stress and deformation, which not only affects the stability of the traction machine, but also accelerates the wear of the bearing and the machine base, further shortening the service life of the traction machine.

[0003] Therefore, it is necessary to design a traction machine of self-aligning bearing structure which can solve the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a traction machine of self-aligning roller bearing structure which can solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A traction machine of self-aligning bearing structure, comprising a machine base body, a cavity is arranged in the machine base body, a rotor and a stator core with winding are arranged in the cavity, the rotor is sleeved on the outside of the stator core with winding, a traction wheel is arranged on the outside of the rotor, the traction wheel is connected with the rotor, the traction wheel is arranged on one side of the machine base body, a main shaft is connected with the rotor, a first bearing cavity is arranged between the rotor and the machine base body, a self-aligning roller bearing is arranged in the first bearing cavity, a second bearing cavity is arranged between the main shaft and the machine base body, a deep groove ball bearing is arranged in the second bearing cavity, and the self-aligning roller bearing and the deep groove ball bearing are arranged on the same axis.

[0007] Preferably, support feet are arranged on both sides of the bottom of the machine base body, a support seat is arranged between the support feet and the machine base, a first end of the support seat is connected with the machine base body, a second end of the support seat is connected with the support feet, and the width of the first end is greater than the width of the second end.

[0008] Preferably, the main shaft is provided with an encoder at the end away from the traction wheel.

[0009] Preferably, the main shaft and the rotor are integrally connected.

[0010] Preferably, the front and rear sides of the base are respectively provided with turning holes for turning.

[0011] Preferably, the outer periphery of the rotor is provided with a gear hob for engaging with a turning gear.

[0012] The beneficial effects of the present application are: the present application uses the combination of the self-aligning roller bearing and the deep groove ball bearing, which can further increase the stability and reliability of the bearing system, and improve the operation stability of the traction machine; the structure of the present application can satisfy the simultaneous machining of the rotor and the main shaft, not only reduces the machining cost, but also ensures the concentricity of the two bearings, thereby improving the overall performance of the traction machine. The present application is provided with turning holes on the front and rear sides of the base body, which can select appropriate turning holes for operation according to the size of the used site, and meet more demands. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is the front view structural schematic diagram of the present application;

[0014] Fig. 2 is the rear view structural schematic diagram of the present application;

[0015] Fig. 3 is the side view structural schematic diagram of the present application;

[0016] Fig. 4 is the sectional view structural schematic diagram of the present application;

[0017] Among them: base body 1, cavity 2, with winding stator core 3, rotor 4, traction wheel 5, main shaft 6, first bearing cavity 7, self-aligning roller bearing 8, second bearing cavity 9, deep groove ball bearing 10, support foot 11, support seat 12, first end 121, second end 122, encoder 13, turning hole 14. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be further described in detail in combination with specific implementation manners.

[0019] In the description of the present application, it should be pointed out that the terms "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the present application.

[0020] As Figs. 1 to 4 The utility model provides a kind of traction machine of self-aligning bearing structure, it includes a base body 1, cavity 2 is provided in base body 1, cavity 2 inside is provided with banding winding stator core 3 and rotor 4, rotor 4 is set in the outside of banding winding stator core 3.Rotor 4 is provided with traction wheel 5 outside, traction wheel 5 is connected with rotor 4, and traction wheel 5 is arranged in the side of base body 1.Rotor 4 is connected with main shaft 6.The end of main shaft 6 away from traction wheel 5 is provided with encoder 13, to detect the rotational speed of main shaft 6.Rotor 4 and base body 1 between are provided with first bearing cavity 7, and first bearing cavity 7 inside is provided with self-aligning roller bearing 8, and main shaft 6 and base body between are provided with second bearing cavity 9, and the inside of second bearing cavity 9 is provided with deep groove ball bearing 10, and self-aligning roller bearing 8 and deep groove ball bearing 10 are arranged on the same axis.Self-aligning roller bearing 8 can reduce the local stress concentration and abnormal wear caused by misalignment or deflection of main shaft 6, guarantee the service life of traction machine.Deep groove ball bearing 10 is used in cooperation with self-aligning roller bearing 8, can assist to bear part radial and axial load on the basis that self-aligning roller bearing 8 bears main load, and with lower friction loss operation, help to maintain the stability and reliability of entire bearing system.

[0021] Further, the bottom of base body 1 is provided with support leg 11 on both sides, support leg 11 and base body 1 between are provided with support seat 12, the first end 121 of support seat is connected with base body 1, the second end 122 of support seat 12 is connected with support leg 11, and the width of first end 121 is greater than the width of second end 122.Support seat 11 connects base body 1 and support leg 12, can greatly reduce the stress and deformation of base body, increase the service life of traction machine.

[0022] Main shaft 6 and rotor 4 are integrally connected, and rotor 4 and main shaft 6 can be machined simultaneously during machining, thereby reducing machining cost, and ensuring the concentricity of the two self-aligning roller bearings 8 and deep groove ball bearings, thereby greatly increasing the stability and safety of the operation of the traction machine.

[0023] Further, the front and rear sides of base body 1 are respectively provided with turning hole 14 for turning. The outer periphery of rotor 4 is provided with a gear hob (not shown) for engaging with a turning gear (not shown). According to the size of the site, the turning hole 14 on the front side of base body 1 or the turning hole 14 on the rear side of base body 1 can be selected to engage the turning gear with the rotor 4 and drive the rotor 4 to rotate.

[0024] The utility model discloses a deep groove ball bearing 10 is used in cooperation with the self -aligning roller bearing 8, can further increase the stability and reliability of bearing system, improve the operation stability of tractor, the structure of the utility model can satisfy the machining of rotor 4 and main shaft 6 simultaneously, not only reduce the processing cost, can guarantee the concentricity of two bearings to improve the overall performance of tractor.

[0025] It will be apparent to those skilled in the art that the present application is not limited to the details of the above-exemplified embodiments but can be implemented in other specific forms without departing from the spirit or essential character of the application. The presently disclosed application, therefore, is to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No limitation is intended to the scope of the claims based on any embodiment illustrated in the drawings.

[0026] Furthermore, it should be understood that although the present specification has been described in language specific to structural features, the present application is not necessarily limited to the specific details described. Rather, the specific examples of the present specification are referred to illustrative only one of many specific embodiments of the application. Thus, the present specification is not to be considered limiting; rather, the scope of the application is to be afforded the broadest interpretation so as to encompass all equivalents thereof. Accordingly, any and all embodiments as can be fall within the scope of the application are intended to be encompassed by the appended claims.

Claims

1. A traction machine of a self-aligning bearing construction comprising a machine base body, characterized in that: The machine base body is internally provided with a cavity, the cavity is internally provided with a wound stator core and a rotor, the rotor is sleeved outside the wound stator core, the outside of the rotor is provided with a traction wheel, the traction wheel is connected with the rotor, the traction wheel is arranged on one side of the machine base body, the rotor is connected with a main shaft, a first bearing cavity is arranged between the rotor and the machine base body, a self-aligning roller bearing is arranged inside the first bearing cavity, a second bearing cavity is arranged between the main shaft and the machine base body, a deep groove ball bearing is arranged inside the second bearing cavity, and the self-aligning roller bearing and the deep groove ball bearing are arranged on the same axis.

2. The traction machine of the self-aligning bearing construction according to claim 1, characterized in that The bottom of the machine base body is provided with support feet on both sides, support seats are arranged between the support feet and the machine base body, the first end of the support seat is connected with the machine base body, the second end of the support seat is connected with the support feet, and the width of the first end is greater than the width of the second end.

3. The traction machine of the self-aligning bearing construction according to claim 1, characterized in that: The end of the main shaft away from the traction wheel is provided with an encoder.

4. The traction machine of the self-aligning bearing construction according to claim 1, characterized in that: The main shaft and the rotor are integrally connected.

5. The traction machine of the self-aligning bearing construction according to claim 1, characterized in that: The front and rear sides of the machine base are respectively provided with turning holes for turning.

6. The traction machine of the self-aligning bearing construction according to claim 1, characterized in that: The outer periphery of the rotor is provided with a gear for engaging with a turning gear.

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