CN215071991U

CN215071991U - Driving part structure of underground speed reducer

Info

Publication number: CN215071991U
Application number: CN202121623921.5U
Authority: CN
Inventors: 胡炜
Original assignee: Ward Transmission Technology Tianjin Co ltd
Current assignee: Ward Transmission Technology Tianjin Co ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-07
Anticipated expiration: 2031-07-16

Abstract

The utility model provides a drive division structure of speed reducer in pit, axis of rotation both ends activity respectively cup joint to shell both ends inner wall, and the axis of rotation lateral wall cup joints the rotor, and the stator cup joints with shell inner wall is fixed, and the stator is in the rotor periphery, and axis of rotation one end passes the one end of shell one end inner wall rear rigid coupling spline, the other end rigid coupling of spline to planetary reducer's input shaft, a drive division structure of speed reducer in pit, spline rigid coupling to planetary reducer's input shaft for the axis of rotation drives the spline and rotates, and the input shaft that the spline drove planetary reducer rotates, compares prior art, a drive division structure of speed reducer in pit, weight is lighter, and the price is lower, and convenient transportation installation and convenient maintenance have improved the flexibility ratio, and first bearing and second bearing have improved the degree of stability of axis of rotation.

Description

Driving part structure of underground speed reducer

Technical Field

The utility model belongs to the technical field of speed reducer in the pit, especially, relate to a drive division structure of speed reducer in the pit.

Background

In the prior art, a driving part structure of the underground speed reducer is composed of a motor, a coupler and the speed reducer, so that the volume of the underground speed reducer is overlarge, the overall mass of the underground speed reducer is overlarge, and the underground small-space environment is greatly restricted, so that a new structure needs to be designed.

Disclosure of Invention

In view of this, the utility model aims at providing a drive part structure of speed reducer in pit to solve the problem that the prior art flexibility is low and the quality is overweight.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a drive division structure of speed reducer in pit, includes permanent-magnet machine and planetary reducer, and permanent-magnet machine includes axis of rotation, rotor, stator, spline and shell, and the activity is cup jointed respectively to shell both ends inner wall at axis of rotation both ends, and the axis of rotation lateral wall cup joints the rotor, and the stator cup joints with the shell inner wall is fixed, and the stator is in the rotor periphery, and axis of rotation one end passes the one end of shell one end inner wall back rigid coupling spline, and the other end rigid coupling of spline is to planetary reducer's input shaft.

Furthermore, one end of the rotating shaft is movably sleeved on the inner wall of one end of the shell through a first bearing, and the other end of the rotating shaft is movably sleeved on the inner wall of the other end of the shell through a second bearing.

Furthermore, the periphery of the input shaft of the planetary speed reducer is movably sleeved with a connecting plate through a mounting bearing, and the connecting plate is fixedly connected to one end, close to the spline, of the shell through a plurality of bolts.

Compared with the prior art, a drive division structure of speed reducer in pit have following beneficial effect:

(1) a drive division structure of speed reducer in pit, spline rigid coupling to planetary reducer's input shaft for the axis of rotation drives the spline and rotates, and the spline drives planetary reducer's input shaft and rotates, compares prior art, a drive division structure of speed reducer in pit, weight is lighter, and the price is lower, convenient transportation installation and convenient maintenance have improved the flexibility ratio, first bearing and second bearing have improved the degree of stability of axis of rotation.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic half-section view of a driving portion structure of an underground speed reducer according to an embodiment of the present invention.

Description of reference numerals:

1-a permanent magnet motor; 11-a rotating shaft; 12-a rotor; 13-a stator; 14-splines; 15-a housing; 16-a first bearing; 17-a second bearing; 2-a planetary reducer; 21-an input shaft; and 3, connecting plates.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, a driving part structure of a downhole reducer includes: compared with the prior art, the permanent magnet motor 1 and the planetary reducer 2 are characterized in that the permanent magnet motor 1 comprises a rotating shaft 11, a rotor 12, a stator 13, a spline 14 and a shell 15, two ends of the rotating shaft 11 are respectively movably sleeved on inner walls of two ends of the shell 15, the outer side wall of the rotating shaft 11 is sleeved with the rotor 12, the stator 13 is fixedly sleeved with the inner wall of the shell 15, the stator 13 is positioned on the periphery of the rotor 12, one end of the rotating shaft 11 penetrates through the inner wall of one end of the shell 15 and then is fixedly connected with one end of the spline 14, the other end of the spline 14 is fixedly connected to an input shaft 21 of the planetary reducer 2, the spline 14 is fixedly connected to the input shaft 21 of the planetary reducer 2, so that the rotating shaft 11 drives the spline 14 to rotate, the spline 14 drives the input shaft 21 of the planetary reducer 2 to rotate, and the driving part structure of the underground reducer is lighter in weight and lower in price, convenient to transport, convenient to maintain and improve the flexibility and a gap is arranged between the stator 13 and the rotor 12, the stator 13 cuts the magnetic induction lines to drive the rotor 12 to rotate (the transmission principle between the stator 13 and the rotor 12 is the prior art and is not described herein), the rotor 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the input shaft 21 of the planetary reducer 2 to rotate;

one end of the rotating shaft 11 is movably sleeved to the inner wall of one end of the housing 15 through a first bearing 16, the other end is movably sleeved to the inner wall of the other end of the housing 15 through a second bearing 17 (the first bearing 16 is installed to the inner wall of one end of the housing 15 through a first bearing installation seat, the outer ring outer side wall of the first bearing 16 is fixedly connected to the inner wall of the first bearing installation seat, the inner ring inner side wall of the first bearing 16 is fixedly connected to the outer side wall of one end of the rotating shaft 11, the second bearing 17 is installed to the inner wall of the other end of the housing 15 through a second bearing installation seat, the outer ring outer side wall of the second bearing 17 is fixedly connected to the inner wall of the second bearing installation seat, the inner ring inner side wall of the second bearing 17 is fixedly connected to the outer side wall of the other end of the rotating shaft 11), the periphery of the input shaft 21 of the planetary reducer 2 is installed through a bearing (the outer ring outer side wall of the installation bearing is fixedly connected to the inner wall of a reserved hole of the connecting plate 3, because the connecting plate 3 is provided with a reserved hole for passing through the input shaft 21, the inner side wall of the inner ring of the mounting bearing is fixedly connected to the outer wall of the input shaft 21), the connecting plate 3 is movably sleeved, the connecting plate 3 is fixedly connected to one end, close to the spline 14, of the shell 15 through a plurality of bolts, and the first bearing 16 and the second bearing 17 improve the stability of the rotating shaft.

The utility model discloses a theory of operation: the permanent magnet motor in the prior art is of a type TYJVFT1-630/24, the output power can exceed 500KW, but the volume is too large to meet the use of working conditions, the permanent magnet motor 2 (the model is TYJVFT1-500/24) of the utility model can directly output at low rotating speed below 500KW, and the volume is smaller than the permanent magnet motor of the prior art, the planetary reducer 2 has small volume and can bear low rotating speed and large torque, the output rotating speed of the rotor of the permanent magnet motor 1 is increased and the torque is reduced, through the rotation transmission of the input shaft 21 of the planetary reducer 2, the output shaft of the planetary reducer 2 finally reaches low rotation speed to meet the requirement of larger torque, therefore, the condition that the prior art cannot meet the use requirements of working conditions is overcome, and compared with the prior art, the volume of the driving mechanism suitable for the high-power underground three-machine driving mechanism is greatly reduced, and the cost is saved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a drive division structure of speed reducer in pit which characterized in that: including permanent-magnet machine (1) and planetary reducer (2), permanent-magnet machine (1) is including axis of rotation (11), rotor (12), stator (13), spline (14) and shell (15), axis of rotation (11) both ends activity cup joint respectively to shell (15) both ends inner wall, axis of rotation (11) lateral wall cup joints rotor (12), stator (13) and shell (15) inner wall are fixed to be cup jointed, and stator (13) are in rotor (12) periphery, the one end of rigid coupling spline (14) behind shell (15) one end inner wall is passed to axis of rotation (11) one end, the other end rigid coupling of spline (14) is to input shaft (21) of planetary reducer (2).

2. The structure of the driving part of the downhole reducer according to claim 1, wherein: one end of the rotating shaft (11) is movably sleeved on the inner wall of one end of the shell (15) through a first bearing (16), and the other end of the rotating shaft is movably sleeved on the inner wall of the other end of the shell (15) through a second bearing (17).

3. The structure of the driving part of the downhole reducer according to claim 1, wherein: the periphery of an input shaft (21) of the planetary speed reducer (2) is movably sleeved with a connecting plate (3) through a mounting bearing, and the connecting plate (3) is fixedly connected to one end, close to the spline (14), of the shell (15) through a plurality of bolts.