Portal crane driving and controlling all-in-one machine with double-bearing structure

Abstract

The utility model relates to a portal crane driving and controlling all-in-one machine with a double-bearing structure. The portal crane driving and controlling all-in-one machine comprises a shell, a main shaft, a first bearing, a stator, a rotor, a control panel and a bearing seat. An annular fixing base is arranged on the inner side wall of the shell. The spindle is arranged in the shell, and the front end of the spindle extends out of the side wall of the shell. And the first bearing is arranged between the annular fixed seat and the main shaft. And the stator is arranged in the shell and is in contact with the inner top wall of the shell. The rotor sleeves the main shaft and is located between the main shaft and the stator. And the control panel is arranged in the shell and is far away from the side wall of the shell. The bearing seat is arranged between the stator and the control panel, and a second bearing is arranged between the bearing seat and the main shaft. The first bearing and the second bearing are matched to completely position the main shaft in the axial direction. The bearing seat is additionally arranged between the stator and the control panel, the second bearing is arranged on the bearing seat, and the main shaft is completely positioned in the axial direction by matching the first bearing with the second bearing, so that the main shaft is prevented from axial movement.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator door machines, in particular to a door machine drive-control integrated machine with a double-bearing structure. Background Art

[0002] In theory, the main shaft of a door operator's integrated drive and control system is subject only to radial forces. However, due to the layout of the control board, the current design of the integrated door operator drive and control system uses a single-bearing structure. This structure can cause axial movement when the main shaft is subjected to a certain axial force. Although theoretically, the main shaft of the integrated door operator drive and control system is subject only to radial forces, in actual use, the main shaft may be subjected to axial forces due to various factors such as assembly, packaging, transportation, and installation in the door operator, resulting in axial movement. Utility Model Content

[0003] The purpose of the present utility model is to provide a door machine drive and control integrated machine with a dual-bearing structure, which can add a bearing seat between the stator and the control board, and set a second bearing on the bearing seat. The first bearing cooperates with the second bearing to fully position the main shaft in the axial direction, thereby ensuring that the main shaft will not move axially when subjected to axial force.

[0004] To achieve the above-mentioned purpose, the present invention provides a door operator drive-control integrated machine with a dual-bearing structure, comprising:

[0005] A housing, wherein an annular fixing seat is provided on the inner side wall of the housing;

[0006] A main shaft is arranged in the housing, and a front end of the main shaft extends out of the side wall of the housing;

[0007] a first bearing, disposed between the annular fixing seat and the main shaft;

[0008] a stator, disposed in the housing and in contact with an inner top wall of the housing;

[0009] a rotor, sleeved on the main shaft and located between the main shaft and the stator;

[0010] a control panel, disposed in the housing and away from a side wall of the housing;

[0011] a bearing seat, disposed between the stator and the control board, with a second bearing disposed between the bearing seat and the main shaft;

[0012] The first bearing cooperates with the second bearing to completely position the main shaft in the axial direction.

[0013] Optionally, a surface of the stator in contact with the inner top wall of the housing is a stator mounting surface, and the mounting surface of the bearing seat is consistent with the stator mounting surface.

[0014] Optionally, a portion of the housing side wall close to the main shaft is a supporting portion, and a washer is provided between the supporting portion and the first bearing.

[0015] Optionally, there is a gap between the abutting portion and the main shaft.

[0016] Optionally, an annular mounting seat is provided at the center of the bearing seat, and the second bearing is provided between the annular mounting seat and the main shaft.

[0017] Optionally, the second bearing is arranged at the end of the main shaft.

[0018] Optionally, the door operator drive and control integrated machine with a dual-bearing structure further includes:

[0019] a rear cover, provided on the housing, for protecting the internal structure of the housing;

[0020] A synchronous pulley is arranged at the front end of the main shaft.

[0021] The beneficial effects of the present invention are as follows: a bearing seat is added between the stator and the control board, and a second bearing is provided on the bearing seat. The first bearing cooperates with the second bearing to completely position the main shaft in the axial direction, thereby ensuring that the main shaft will not move axially when subjected to axial force;

[0022] The mounting surface of the bearing seat is consistent with the mounting surface of the stator, thereby ensuring the coaxiality of the second bearing;

[0023] A supporting portion is provided on the side wall of the shell near the main shaft, which can change the installation method of the first bearing. The first bearing can be installed from the direction of the control board and other components can be installed in the same direction in sequence. At the same time, the supporting portion can support the first bearing, increase the installation stability of the first bearing, and further prevent axial movement of the main shaft.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a door operator drive-control integrated machine with a dual-bearing structure shown in one embodiment of the present utility model;

[0026] Figure 2 This is a schematic partial structural diagram of a door operator drive-control integrated machine with a dual-bearing structure shown in one embodiment of the present utility model;

[0027] In the figure: 1. Housing; 11. Annular fixing seat; 12. Supporting portion; 2. Main shaft; 3. First bearing; 31. Washer; 4. Stator; 41. Stator mounting surface; 5. Rotor; 6. Control board; 7. Bearing seat; 71. Annular mounting seat; 8. Second bearing; 9. Rear cover; 10. Synchronous pulley. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] See Figure 1 and Figure 2A door machine drive and control integrated machine with a dual-bearing structure shown in a preferred embodiment of the present application includes a housing 1, a main shaft 2, a first bearing 3, a stator 4, a rotor 5, a control board 6 and a bearing seat 7. An annular fixing seat 11 is provided on the inner side wall of the housing 1. The main shaft 2 is arranged in the housing 1, and the front end of the main shaft 2 extends out of the side wall of the housing 1. The first bearing 3 is arranged between the annular fixing seat 11 and the main shaft 2. The stator 4 is arranged in the housing 1 and the stator 4 is in contact with the inner top wall of the housing 1. The rotor 5 is sleeved on the main shaft 2 and is located between the main shaft 2 and the stator 4. The control board 6 is arranged in the housing 1 and the control board 6 is away from the side wall of the housing 1. The bearing seat 7 is arranged between the stator 4 and the control board 6, and a second bearing is provided between the bearing seat 7 and the main shaft 2. The first bearing 3 cooperates with the second bearing to completely position the main shaft 2 in the axial direction.

[0032] In actual use, the main shaft 2 of the door operator drive and control system may be subjected to axial forces due to factors such as assembly, packaging, transportation, and installation in the door operator. This may cause axial movement. Therefore, according to the solution of the embodiment of the utility model, a bearing seat 7 is added between the stator 4 and the control board 6, and a second bearing is provided on the bearing seat 7. The first bearing 3 cooperates with the second bearing to fully position the main shaft 2 in the axial direction, thereby ensuring that the main shaft 2 does not experience axial movement when subjected to axial forces.

[0033] The following is a detailed description with specific embodiments:

[0034] See Figure 1 The dual-bearing door operator drive and control integrated machine further includes a rear cover and a synchronous pulley. The rear cover is provided on the housing 1 to protect the internal structure of the housing 1. The synchronous pulley is provided at the front end of the main shaft 2.

[0035] See Figure 1 The side of the stator 4 that contacts the inner top wall of the housing 1 is the mounting surface of the stator 4, and the mounting surface of the bearing seat 7 is consistent with the stator mounting surface. The coaxiality of the second bearing is ensured by the matching of the mounting surface of the bearing seat 7 and the stator 4.

[0036] See Figure 2The side wall of the housing 1 near the main shaft 2 is a supporting portion 12, and a washer 31 is provided between the supporting portion 12 and the first bearing 3. It should be noted that in the existing single-bearing door machine drive and control integrated machine, there is a large gap between the side wall of the housing 1 and the main shaft 2, and the single bearing is installed through the gap from the side wall of the housing 1. However, if the main shaft 2 is subjected to axial force, the side of the single bearing facing the synchronous pulley has no structural support, and axial movement is more likely to occur. Therefore, a supporting portion 12 is provided on the side wall of the housing 1 near the main shaft 2, and the installation method of the first bearing 3 is changed. The first bearing 3 is installed from the direction of the control board 6 and other components are installed in the same direction in sequence. At the same time, the supporting portion 12 can support the first bearing 3, increase the installation stability of the first bearing 3, and further prevent the main shaft 2 from axial movement. The washer 31 between the supporting portion 12 and the first bearing 3 can play a protective role and prevent large-scale friction damage between them.

[0037] See Figure 2 , there is a gap between the abutting portion 12 and the main shaft 2. Since the main shaft 2 needs to rotate, there is a gap between the abutting portion 12 and the main shaft 2, which can prevent contact friction between the main shaft 2 and the abutting portion 12.

[0038] See Figure 2 The bearing seat 7 has an annular mounting seat at its center, with a second bearing disposed between the annular mounting seat and the main shaft 2. This second bearing is disposed at the end of the main shaft 2. In this embodiment, the first bearing 3 is disposed in the middle of the main shaft 2, and the second bearing is disposed at the end of the main shaft 2. The two bearings cooperate to fully position the main shaft 2 in the axial direction.

[0039] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A door operator drive and control integrated machine with a dual-bearing structure, characterized in that: include: A housing, wherein an annular fixing seat is provided on the inner side wall of the housing; A main shaft is arranged in the housing, and a front end of the main shaft extends out of the side wall of the housing; a first bearing, disposed between the annular fixing seat and the main shaft; a stator, disposed in the housing and in contact with an inner top wall of the housing; a rotor, sleeved on the main shaft and located between the main shaft and the stator; a control panel, disposed in the housing and away from a side wall of the housing; a bearing seat, disposed between the stator and the control board, with a second bearing disposed between the bearing seat and the main shaft; The first bearing cooperates with the second bearing to completely position the main shaft in the axial direction.

2. The door operator drive and control integrated machine with a dual-bearing structure according to claim 1, characterized in that: The surface of the stator that contacts the inner top wall of the housing is the stator mounting surface, and the mounting surface of the bearing seat is consistent with the stator mounting surface.

3. The door operator drive and control integrated machine with a dual-bearing structure according to claim 1, characterized in that: The side wall of the housing close to the main shaft is a supporting portion, and a washer is provided between the supporting portion and the first bearing.

4. The door operator drive and control integrated machine with a dual-bearing structure according to claim 3, characterized in that: There is a gap between the abutting portion and the main shaft.

5. The door operator drive and control integrated machine with a dual-bearing structure according to claim 1, characterized in that: An annular mounting seat is provided at the center of the bearing seat, and the second bearing is provided between the annular mounting seat and the main shaft.

6. The door operator drive and control integrated machine with a dual-bearing structure according to claim 5, characterized in that: The second bearing is disposed at the end of the main shaft.

7. The door operator drive and control integrated machine with a dual-bearing structure according to claim 1, characterized in that: Also includes: a rear cover, provided on the housing, for protecting the internal structure of the housing; A synchronous pulley is arranged at the front end of the main shaft.

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