CN206302250U

CN206302250U - A kind of torque motor structure

Info

Publication number: CN206302250U
Application number: CN201621271512.2U
Authority: CN
Inventors: 赵庆; 陈伟; 邓晴莺; 吴晓娟
Original assignee: BEIJING MOREGET INNOVATION TECHNOLOGY Co Ltd
Current assignee: BEIJING MOREGET INNOVATION TECHNOLOGY Co Ltd
Priority date: 2016-11-21
Filing date: 2016-11-21
Publication date: 2017-07-04
Anticipated expiration: 2026-11-21

Abstract

The utility model proposes a kind of torque motor structure, including shell body, motor shaft, motor stator and rotor, bearing block is installed on the shell body front end face, bearing spider is installed on the rear end face of the shell body, it is characterized in that, the bearing block bottom is installed by angular contact ball bearing in groups, the motor stator is fixed in shell body by stator end cap, rotor is installed on the motor shaft, rotor fixed cover and rotor fix end cap, the endoporus of the bearing spider is built with deep groove ball bearing, annular groove is provided with the bearing spider endoporus, groove is built with rubber ring, the inner ring of the deep groove ball bearing is equipped with taper sheath, encoder is fixedly mounted on the outer section of the bearing spider.The utility model is above started with from torque motor structure design and the selection of standard parts and components, simple and reliable for structure, is a kind of electric machine structure for not needing special technique and frock to complete assembling, and the motor for being adapted to single and mini-batch production is produced.

Description

A kind of torque motor structure

Technical field

The utility model is related to torque motor technical field, more particularly to a kind of torque motor structure.

Background technology

At present, motor has obtained extensive development as power source.Meanwhile, in the market occurred in that various standardization, The packing part product such as rotor of seriation is available for user to select, and is used to meet the requirement under different industries and special operation condition. Finished product motor currently on the market is generally production line assembling, it is desirable to have perfect tooling device completes some complicated assemblers Skill, such as avoid stator with rotor assembling process because magnetic force inhale together with, while the adjustment of the clearance and pretightning force of bearing with plus Load needs reliable data and implementation.

But, for meet special operation condition or it is cost-effective and select packing motor user, it is necessary to designed, designed turns surely The installation frame structure of son.And motor frame structure design has to the adjustment and loading of the clearance and pretightning force for considering bearing, The problems such as assembly technology and special tooling are designed, it is relatively difficult for the motor manufacturer of single and mini-batch production.

Utility model content

In order to solve the above problems, the utility model proposes a kind of torque motor structure, including shell body, motor shaft, Motor stator and rotor, install bearing block on the shell body front end face, bearing is installed on the rear end face of the shell body Bearing, it is characterised in that angular contact ball bearing in groups is installed in the bearing block bottom, the motor stator is solid by stator end cap It is scheduled in shell body, rotor, rotor fixed cover and rotor is installed on the motor shaft and fixes end cap, the bearing spider Endoporus is provided with annular groove built with deep groove ball bearing on the bearing spider endoporus, groove built with rubber ring, in the rubber ring On deep groove ball bearing outer ring, the inner ring of the deep groove ball bearing is equipped with taper sheath to ring set, and the conical surface covers inner ring in motor shaft Taper shaft part on, fixedly mount encoder on the outer section of the bearing spider.

Further, bearing inner end cap, interior felt seal ring, bearing outer end cap and outer are installed on the shell body front end face Felt seal ring.

Further, the angular contact ball bearing inner ring is fixed on motor shaft.

Further, the rotor is fixed end cap and is fixed on rotor fixed cover by rotor.

Further, the annular groove depth on the bearing spider endoporus is 0.8 times of rubber ring thickness, and width is rubber 1.4 times of circle width.

Further, encoder cover is installed on the bearing spider.

The electric machine structure that the utility model is provided both ensure that the axiality and axially position precision of motor shaft and shell body, Simply and effectively solve relatively difficult design and assembly problem for the motor manufacturer of single and mini-batch production again.

Brief description of the drawings

Fig. 1 is a kind of structural representation of torque motor structure of the utility model.

In figure：In 1- shell bodies, 2- bearing blocks, 3- bearings inner end cap, 4- outside felt seal ring, 5- bearings outer end cap, 6- Felt seal ring, 7- angular contact ball bearings, 8- motor shafts, 9- motor stators, 10- stators end cap, 11- rotors, 12- rotors Fixed cover, 13- rotors fix end cap, 14- bearing spiders, 15- rubber rings, 16- deep groove ball bearings, 17- taper sheaths, 18- codings Device, 19- encoder covers.

Specific embodiment

A kind of specific embodiment of torque motor structure of the utility model is described in detail below in conjunction with the accompanying drawings, should Embodiment is merely to illustrate the utility model rather than limits scope of the present utility model, and those skilled in the art are to this practicality The modification of the new various equivalent form of values falls within the application appended claims limited range.

Such as Fig. 1, a kind of torque motor structure, including aluminum shell body 1 install bearing chamber, bearing on the front end face of shell body 1 Room includes bearing block 2, bearing inner end cap 3, interior felt seal ring 4, bearing outer end cap 5 and outer felt seal ring 6, groups of corner connection Touch ball bearing 7 to be installed in bearing chamber back-to-back, Internal and external cycle face size has been adjusted when angular contact ball bearing 7 dispatches from the factory in groups Difference, two Internal and external cycles of bearing need to be only adjacent to when using can reach suitable pretightning force and clearance, this group of bearing inner race connection Motor shaft 8 is simultaneously fixed by round nut, and outer ring is fixed by bearing inner end cap 3 and bearing outer end cap 5, is installed groups of Angular contact ball bearing 7 ensure that the axiality and axially position precision of motor shaft 8 and shell body 1, reduce the He of motor stator 9 The assembly difficulty of rotor assembly, can effective limiting motor axle 8 axial float；Motor stator 9 is mounted in shell body 1, by spiral shell The end-face friction that nail compresses the generation of stator end cap 10 makes it be fixed on shell body 1, and rotor assembly is arranged on electricity by screw On arbor 8, rotor assembly includes that rotor 11, rotor fixed cover 12 and rotor fix end cap 13, and rotor 11 is mounted in and turns On sub- fixed cover 12, the end-face friction realization fixation that end cap 13 is produced is fixed by screw in compression rotor；Aluminum bearing spider 14 be arranged on shell body 1 rear end face on, the endoporus of bearing spider 14 built with deep groove ball bearing 16, on the endoporus of bearing spider 18 Annular groove is provided with, groove can prevent bearing built with rubber ring 15, the inner ring sleeve of rubber ring 15 on the outer ring of deep groove ball bearing 16 Act as a travelling agent circle, the annular groove depth on the endoporus of bearing spider 18 is 0.8 times of the thickness of rubber ring 15, and width is the width of rubber ring 15 1.4 times；The outer ring of taper sheath 17 coordinates with the inner ring of deep groove ball bearing 16, and the rear portion of taper sheath 17 is equipped with round nut, by circle spiral shell Be fixed on taper sheath 17 on the taper shaft part of motor shaft 8 by female thrust, while being realized by the tensioner deformation of taper sheath 17 deep The inner ring interference of ditch ball bearing 16 is fixed, and brought assembly difficulty is required this configuration reduces because bearing internal external face coordinates.

Encoder 18 is fixed on the outer face of bearing spider 14, and its rotary shaft is fixed on motor shaft 8 by clasping structure Rear end, encoder 18 is used for the measurement of motor speed and position and control, and encoder cover 19 is arranged on bearing spider 14, Can be every the damage of absolute encoder 18 and pollution.

The supporting form that the utility model motor shaft front end is installed back-to-back using angular contact ball bearing in groups so that motor It is ensured that motor shaft and the axiality and axially position precision of shell body, simply and effectively solve motor after the assembling of front end Rotor inhales the problem on motor stator because of magnetic force when installing.Meanwhile, adjusted by producer before angular contact ball bearing dispatches from the factory in groups Whole good clearance and pretightning force, the Internal and external cycle end face that two bearings need only be adjacent to during user installation can just reach design requirement.This structure The selection of bearing clearance and pretension force parameter is simplified, the axial movement value of motor is effectively limited.

The motor rear end spring bearing of the utility model electric machine structure is arranged on motor shaft by the way of taper sheath tensioner On, that is, the interference fit of bearing inner race and axle is realized, also reduce and require that brought assembling is difficult because bearing internal external face coordinates Degree.

Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.

Claims

1. a kind of torque motor structure, including shell body (1), motor shaft (8), motor stator (9) and rotor (11), it is described Bearing block (2) is installed on shell body (1) front end face, bearing spider (14), its feature are installed on the rear end face of the shell body (1) It is that angular contact ball bearing (7) in groups are installed in bearing block (2) bottom, and the motor stator (9) is by stator end cap (10) It is fixed in shell body (1), rotor (11), rotor fixed cover (12) and rotor fixing end is installed on the motor shaft (8) Lid (13), the endoporus of the bearing spider (14) is provided with built with deep groove ball bearing (16) on bearing spider (14) endoporus Annular groove, groove built with rubber ring (15), rubber ring (15) inner ring sleeve on deep groove ball bearing (16) outer ring, the zanjon The inner ring of ball bearing (16) is equipped with taper sheath (17), and taper sheath (17) inner ring is described on the taper shaft part of motor shaft (8) Encoder (18) is fixedly mounted on the outer section of bearing spider (14).

2. torque motor structure according to claim 1, it is characterised in that installation axle on shell body (1) front end face Hold inner end cap (3), interior felt seal ring (4), bearing outer end cap (5) and outer felt seal ring (6).

3. torque motor structure according to claim 1, it is characterised in that angular contact ball bearing (7) inner ring is fixed On motor shaft (8).

4. torque motor structure according to claim 1, it is characterised in that the rotor (11) is fixed by rotor End cap (13) is fixed on rotor fixed cover (12).

5. torque motor structure according to claim 1, it is characterised in that the annular on bearing spider (14) endoporus Groove depth is 0.8 times of rubber ring (15) thickness, and width is 1.4 times of rubber ring (15) width.

6. torque motor structure according to claim 1, it is characterised in that install encoder on the bearing spider (14) Cover (19).