Coupling and connecting structure of motor output shaft and main shaft

Abstract

The utility model discloses a coupling and a connecting structure of a motor output shaft and a main shaft. The coupling comprises a connecting shaft, a first shaft sleeve, a first expansion ring, a first flange, a first diaphragm, a second shaft sleeve, a second expansion ring, a second flange, a second diaphragm and a first limiting piece. According to the coupler, through the design of the first limiting piece, it can be guaranteed that the depth of the motor output shaft inserted into the first shaft sleeve is fixed, and therefore it is guaranteed that the shaft sticking amount is a fixed value, and the installation precision and reliability of the coupler can be improved. In addition, due to the fact that the journal sticking amount is fixed, repeated measurement and calibration are not needed in the installation process, the installation process is greatly simplified, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a connection structure of a coupling, a motor output shaft and a main shaft. Background Art

[0002] In production practice, when the motor output shaft and the main shaft are connected through a coupling, the depth of the motor output shaft or the main shaft inserted into the coupling sleeve must be fixed, that is, the shaft holding amount of the sleeve must be a fixed value. However, when installing the coupling in the prior art, it is necessary to repeatedly measure and calibrate the depth of the main shaft inserted into the coupling sleeve and the depth of the motor output shaft inserted into the coupling sleeve, which is very inconvenient.

[0003] Therefore, whether it is possible to improve an improved coupling, a connection structure between the motor output shaft and the main shaft based on the deficiencies of the existing technology has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art and provide a connection structure of a coupling, a motor output shaft and a main shaft.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] A coupling comprising:

[0007] connecting shaft;

[0008] A first sleeve includes a first connecting portion and a first collar provided at one end of the first connecting portion, wherein a first mounting channel is provided in the first connecting portion;

[0009] A first expansion ring is sleeved on the first connecting portion and is coaxially arranged with the first shaft ring;

[0010] a first flange mounted on one end of the connecting shaft and coaxially arranged with the first collar;

[0011] a first diaphragm mounted between the first flange and the first collar;

[0012] The second sleeve includes a second connecting portion and a second collar provided at one end of the second connecting portion; a second mounting channel is provided in the second connecting portion;

[0013] A second expansion ring is sleeved on the second connecting portion and is coaxially arranged with the second shaft ring;

[0014] a second flange mounted on the other end of the connecting shaft and coaxially arranged with the second shaft collar;

[0015] a second diaphragm mounted between the second flange and the second collar;

[0016] One end of the first limiting member is connected to the end of the first shaft ring facing away from the first expansion ring, and a part of the first limiting member extends into the first installation channel.

[0017] In some embodiments, further comprising:

[0018] One end of the second limiting member is connected to the end of the second shaft ring away from the second expansion ring, and a part of the second limiting member extends into the second installation channel.

[0019] In some embodiments, the other end of the first limiting member is connected to the first flange, and there is no overlapping portion between the first limiting member and the first diaphragm in the axial direction of the connecting shaft;

[0020] And / or, the other end of the second limiting member is connected to the second flange, and there is no overlapping portion between the second limiting member and the second diaphragm in the axial direction of the connecting shaft.

[0021] In some embodiments, the first stopper and the first collar are detachably connected;

[0022] And / or, the second limiting member and the second shaft ring are detachably connected.

[0023] In some embodiments, the first sleeve is used to connect to the motor output shaft, and the second sleeve is used to connect to the main shaft.

[0024] A connection structure between a motor output shaft and a main shaft includes the above-mentioned coupling, wherein the motor output shaft is installed in the first installation channel, and one end of the motor output shaft close to the main shaft abuts against the first limiting member.

[0025] In some embodiments, the distance from the end surface of the first limit member in contact with the motor output shaft to the end surface of the second shaft ring facing away from the second expansion ring is the same as the distance between the motor output shaft and the main shaft.

[0026] A connection structure between a motor output shaft and a main shaft, comprising the above-mentioned coupling, wherein the motor output shaft is mounted in the first mounting channel, and one end of the motor output shaft close to the main shaft abuts against the first limit member, and the main shaft is mounted in the second mounting channel, and one end of the main shaft close to the motor output shaft abuts against the second limit member.

[0027] In some embodiments, the distance from the end surface of the first limiter in contact with the motor output shaft to the end surface of the second limiter in contact with the main shaft is the same as the spacing between the motor output shaft and the main shaft.

[0028] In some embodiments, the motor output shaft is located at the upper end of the main shaft, the motor output shaft, the coupling, and the main shaft are arranged in sequence from top to bottom, and the first bushing is located above the second bushing.

[0029] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0030] The positive effect of this invention lies in that, through the design of the first stopper, the depth of the motor output shaft inserted into the first sleeve is fixed, thereby ensuring a constant shaft clamping amount, which helps to improve the installation accuracy and reliability of the coupling. Furthermore, since the shaft clamping amount is fixed, repeated measurement and calibration are not required during installation, which greatly simplifies the installation process and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a cross-sectional view of a coupling according to a preferred embodiment of the present invention.

[0032] Figure 2 This is a three-dimensional diagram of a coupling according to a preferred embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the connection relationship between the first limiting member and the first shaft sleeve in a preferred embodiment of the present utility model.

[0034] Figure 4 This is a schematic diagram of the connection relationship between the first limiting member and the first sleeve from another perspective of a preferred embodiment of the present utility model.

[0035] Description of reference numerals:

[0036] Connecting shaft 1

[0037] First bushing 2

[0038] First collar 21

[0039] First connecting portion 22

[0040] First expansion ring 3

[0041] First flange 4

[0042] First diaphragm 5

[0043] Second sleeve 6

[0044] Second collar 61

[0045] Second connecting portion 62

[0046] Second expansion ring 7

[0047] Second flange 8

[0048] Second diaphragm 9

[0049] The first limiting member 10 DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the process, method, article or apparatus comprising the element.

[0052] like Figure 1-Figure 4 As shown, this embodiment discloses a coupling, which includes a connecting shaft 1, a first sleeve 2, a first expansion ring 3, a first flange 4, a first diaphragm 5, a second sleeve 6, a second expansion ring 7, a second flange 8, a second diaphragm 9, and a first limiter 10.

[0053] The connecting shaft 1 is made of carbon fiber, and a first flange 4 and a second flange 8 are respectively provided at both ends of the connecting shaft 1 .

[0054] The first sleeve 2 is used to connect to the motor output shaft, and includes a first connecting portion 22 and a first shaft ring 21 arranged at one end of the first connecting portion 22, and a first mounting channel is provided in the first connecting portion 22. The first expansion ring 3 is sleeved on the first connecting portion 22 and is coaxially arranged with the first shaft ring 21. The first flange 4 is installed at one end of the connecting shaft 1 and is coaxially arranged with the first shaft ring 21. The first diaphragm 5 is installed between the first flange 4 and the first shaft ring 21. The second sleeve 6 is used to connect to the main shaft, and includes a second connecting portion 62 and a second shaft ring 61 arranged at one end of the second connecting portion 62; a second mounting channel is provided in the second connecting portion 62. The second expansion ring 7 is sleeved on the second connecting portion 62 and is coaxially arranged with the second shaft ring 61. The second flange 8 is installed at the other end of the connecting shaft 1 and is coaxially arranged with the second shaft ring 61. The second diaphragm 9 is installed between the second flange 8 and the second shaft ring 61.

[0055] One end of the first position-limiting member 10 is connected to an end of the first shaft ring 21 facing away from the first expansion ring 3 , and a portion of the first position-limiting member 10 extends into the first installation channel.

[0056] In this embodiment, the design of the first stopper 10 ensures that the motor output shaft is inserted into the first sleeve 2 to a fixed depth, thereby ensuring a constant shaft clamping amount, which helps improve the installation accuracy and reliability of the coupling. Furthermore, since the shaft clamping amount is fixed, repeated measurement and calibration are not required during installation, which greatly simplifies the installation process and improves installation efficiency.

[0057] Furthermore, the coupling of this embodiment also includes a second limit member (not shown in the figure), one end of which is connected to the end of the second shaft ring 61 away from the second expansion ring 7, and a part of the second limit member extends into the second installation channel.

[0058] In this embodiment, through the design of the second limiter, when the motor output shaft is limited by the first limiter 10, the main shaft can be further limited by the second limiter. The double limit can further simplify the installation process and improve the installation efficiency.

[0059] Furthermore, the other end of the first stopper 10 of the coupling of this embodiment is connected to the first flange 4, and the first stopper 10 and the first diaphragm 5 do not overlap in the axial direction of the connecting shaft 1. The other end of the second stopper is connected to the second flange 8, and the second stopper and the second diaphragm 9 do not overlap in the axial direction of the connecting shaft 1.

[0060] In this embodiment, the above structural form can ensure that the first limit member 10 and the second limit member not only have a limiting function, but also have a supporting and spacing function, which can prevent the first diaphragm 5 and the second diaphragm 9 from being squeezed by the corresponding shaft ring and flange, thereby improving the service life.

[0061] Furthermore, in order to facilitate the repair and replacement of the first limit member 10 and the second limit member, the first limit member 10 and the first shaft ring 21 of the coupling of this embodiment are detachably connected, and the second limit member and the second shaft ring 61 are detachably connected, specifically by screws, but not limited to this.

[0062] In production practice, there is a structure in which the motor output shaft and the main shaft are vertically connected, that is, the motor output shaft is located at the upper end of the main shaft, and the motor output shaft, coupling, and main shaft are arranged in sequence from top to bottom. For the coupling itself, the first sleeve 2 is located above the second sleeve 6. When installing this vertical connection structure, the method often used is to first connect the main shaft to the second sleeve 6 at the lower end of the coupling, then hoist the motor to the upper end of the coupling, and connect the motor output shaft to the first sleeve 2 at the upper end of the coupling. This embodiment discloses a connection structure between the motor output shaft and the main shaft, including the aforementioned coupling, the motor output shaft is installed in the first mounting channel, and the end of the motor output shaft close to the main shaft abuts against the first limit member 10. In this embodiment, the distance from the end face of the first limit member 10 in contact with the motor output shaft to the end face of the second shaft ring 61 facing away from the second expansion ring 7 is the same as the spacing between the motor output shaft and the main shaft.

[0063] By adopting the connection structure between the motor output shaft and the main shaft of this embodiment, the output shaft of the motor can be quickly assembled with the first sleeve 2 of the coupling. There is no need to measure and calibrate the shaft holding amount of the motor output shaft, which simplifies the installation process and improves installation efficiency.

[0064] This embodiment discloses another connection structure between a motor output shaft and a main shaft, comprising the aforementioned coupling. The motor output shaft is mounted in a first mounting channel, with the motor output shaft end proximal to the main shaft abutting against a first stopper 10. The main shaft is mounted in a second mounting channel, with the spindle end proximal to the motor output shaft abutting against a second stopper. The distance from the end face of the first stopper 10 contacting the motor output shaft to the end face of the second stopper contacting the main shaft is the same as the spacing between the motor output shaft and the main shaft.

[0065] By adopting the connection structure between the motor output shaft and the main shaft of this embodiment, the main shaft and the second sleeve 6 of the coupling can be quickly assembled together, and the motor output shaft and the first sleeve 2 of the coupling can also be quickly assembled together. There is no need to measure and calibrate the shaft holding amount of the main shaft and the motor output shaft, which simplifies the installation process and improves installation efficiency.

Claims

1. A coupling, characterized in that: include: connecting shaft; A first sleeve includes a first connecting portion and a first collar provided at one end of the first connecting portion, wherein a first mounting channel is provided in the first connecting portion; A first expansion ring is sleeved on the first connecting portion and is coaxially arranged with the first shaft ring; a first flange mounted on one end of the connecting shaft and coaxially arranged with the first collar; a first diaphragm mounted between the first flange and the first collar; The second sleeve includes a second connecting portion and a second collar provided at one end of the second connecting portion; a second mounting channel is provided in the second connecting portion; A second expansion ring is sleeved on the second connecting portion and is coaxially arranged with the second shaft ring; a second flange mounted on the other end of the connecting shaft and coaxially arranged with the second shaft collar; a second diaphragm mounted between the second flange and the second collar; One end of the first limiting member is connected to the end of the first shaft ring facing away from the first expansion ring, and a part of the first limiting member extends into the first installation channel.

2. The coupling according to claim 1, wherein: Also includes: One end of the second limiting member is connected to the end of the second shaft ring away from the second expansion ring, and a part of the second limiting member extends into the second installation channel.

3. The coupling according to claim 2, wherein: The other end of the first limiting member is connected to the first flange, and there is no overlapping portion between the first limiting member and the first diaphragm in the axial direction of the connecting shaft; And / or, the other end of the second limiting member is connected to the second flange, and there is no overlapping portion between the second limiting member and the second diaphragm in the axial direction of the connecting shaft.

4. The coupling according to claim 2, wherein: The first limiting member and the first shaft collar are detachably connected; And / or, the second limiting member and the second shaft ring are detachably connected.

5. The coupling according to claim 1, wherein: The first shaft sleeve is used to connect to the motor output shaft, and the second shaft sleeve is used to connect to the main shaft.

6. A connection structure between a motor output shaft and a main shaft, characterized in that: It comprises the coupling according to any one of claims 1 to 5, wherein the motor output shaft is installed in the first installation channel, and one end of the motor output shaft close to the main shaft abuts against the first limit member.

7. The connection structure between the motor output shaft and the main shaft according to claim 6, characterized in that: The distance from the end surface of the first limiting member in contact with the motor output shaft to the end surface of the second shaft ring facing away from the second expansion ring is the same as the distance between the motor output shaft and the main shaft.

8. A connection structure between a motor output shaft and a main shaft, characterized in that: Including the coupling as described in claim 2, the motor output shaft is installed in the first installation channel, and the end of the motor output shaft close to the main shaft abuts against the first limit member, the main shaft is installed in the second installation channel, and the end of the main shaft close to the motor output shaft abuts against the second limit member.

9. The connection structure between the motor output shaft and the main shaft according to claim 8, characterized in that: The distance from the end surface of the first limiting member in contact with the motor output shaft to the end surface of the second limiting member in contact with the main shaft is the same as the spacing between the motor output shaft and the main shaft.

10. The connection structure between the motor output shaft and the main shaft according to claim 6 or 8, characterized in that: The motor output shaft is located at the upper end of the main shaft. The motor output shaft, the coupling, and the main shaft are arranged in sequence from top to bottom, and the first shaft sleeve is located above the second shaft sleeve.

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