CN220245225U - A kind of traction machine and its rotor - Google Patents

Abstract

Provided herein is a traction machine and a rotor thereof. The rotor includes: a stop ring; a rotor shaft located inside the stop ring and extending in an axial direction of the stop ring; the connecting wall is positioned at the same end of the rotor shaft and the stop ring and is connected with the rotor shaft and the stop ring, and the connecting wall, the rotor shaft and the stop ring are encircled to form a groove; and the reinforcing ribs are positioned in the grooves and arranged on the connecting wall and are arranged to improve the structural strength of the connecting wall. The rotor is characterized in that the reinforcing ribs are positioned in the grooves and arranged on the connecting wall, and the reinforcing ribs are used for improving the structural strength of the connecting wall, so that the connecting wall is not easy to deform in the use process; the rotor is applied to the traction machine, and can keep the running stability of the traction machine for a long time, so that the lifting process of the elevator is more stable.

Description

A kind of traction machine and its rotor

Technical field

This application relates to but is not limited to the technical field of elevator equipment, and specifically refers to a traction machine and its rotor.

Background technique

The external rotor traction machine is a type of traction machine that is currently used more frequently. It includes a machine base, a winding stator, a rotor and a traction wheel located on the machine base. The winding stator includes a stator core and coil windings, and the coil windings are wound around the stator core. The rotor includes a stop ring, a connecting wall and a rotor shaft. The rotor shaft is located inside the stop ring. One end of the rotor shaft and one end of the stop ring are connected through the connecting wall. The traction sheave is drivingly connected to the rotor, and the permanent magnets are evenly distributed on the stop ring according to the number of poles of the motor. Connect the traction wire rope to the traction sheave, the rotor drives the traction sheave to rotate forward to drive the car up, and the rotor drives the traction sheave to rotate reversely to drive the car down.

The connecting wall of the existing rotor is easily deformed after being used for a period of time, which will reduce the running stability of the traction machine and cause instability in the elevator lifting process.

Utility model content

The present application provides a rotor of a traction machine with higher structural strength.

This application also provides a traction machine.

The rotor of the traction machine proposed in the embodiment of the present invention includes: a stop ring; a rotor shaft located inside the stop ring and extending along the axial direction of the stop ring; a connecting wall located on the rotor The same end of the shaft and the stop ring connects the rotor shaft and the stop ring, and the connecting wall, the rotor shaft and the stop ring form a groove; and a reinforcing rib located at The groove is disposed in the groove and is arranged on the connecting wall to enhance the structural strength of the connecting wall.

In some exemplary embodiments, the reinforcing ribs include a plurality of reinforcing ribs, which are sequentially arranged in the circumferential direction of the rotor shaft and configured to drive air movement in the groove based on the rotation of the rotor. .

In some exemplary embodiments, reinforcement grooves are provided on the sides of the connecting wall.

In some exemplary embodiments, the reinforcing grooves include a plurality of first reinforcing grooves and a plurality of second reinforcing grooves arranged sequentially in the circumferential direction of the rotor shaft, and the plurality of first reinforcing grooves are located at the On the side of the connecting wall outside the groove, a plurality of second reinforcing grooves are located on the side of the connecting wall inside the groove.

In some exemplary embodiments, the connecting wall is provided with connecting pin holes and mounting screw holes.

In some exemplary embodiments, each of the connecting pin holes and the mounting screw holes includes multiple, and the multiple connecting pin holes and the multiple mounting screw holes are evenly distributed on the same circumference.

In some exemplary embodiments, the connecting wall includes a first annular wall and a third annular wall extending in a radial direction of the rotor shaft and a second annular wall extending in an axial direction of the rotor shaft, the The rotor shaft, the first annular wall, the second annular wall, the third annular wall and the stop ring are connected in sequence, and the reinforcing ribs connect the first annular wall and the second annular wall. .

In some exemplary embodiments, the second annular wall further extends in a radial direction of the rotor shaft from an end connected to the first annular wall to an end connected to the third annular wall. External extension.

In some exemplary embodiments, the rotor shaft is provided with a shaft hole inside, and the outer circumferential surface of the rotor shaft includes a first annular surface, a conical surface, and a second annular surface arranged in sequence, and the conical surface The diameter of the surface tapers from an end adjacent to the connecting wall to an end far away from the connecting wall.

The traction machine provided by the embodiment of the present invention includes the rotor of the traction machine described in any of the above embodiments.

In the rotor of the traction machine proposed in the embodiment of the present utility model, the reinforcing ribs are located in the groove and are provided on the connecting wall. The reinforcing ribs are used to increase the structural strength of the connecting wall, so that the connecting wall is less likely to deform during use; The rotor is used in the traction machine, which can maintain the smooth operation of the traction machine for a long time, so the elevator lifting process is more stable.

Description of drawings

Figure 1 is a schematic three-dimensional structural diagram of a rotor provided by some embodiments;

Figure 2 is a schematic three-dimensional structural diagram of the rotor shown in Figure 1 from another perspective;

Figure 3 is a schematic cross-sectional view of the right structure of the rotor shown in Figure 1;

Figure 4 is a right structural diagram of the rotor shown in Figure 1;

Figure 5 is a schematic rear structural view of the rotor shown in Figure 1.

In the drawings, the parts represented by each number are listed as follows:

100 stop ring, 200 rotor shaft, 210 first annular surface, 220 tapered surface, 230 second annular surface, 240 shaft hole, 300 connecting wall, 310 first reinforced groove, 320 second reinforced groove, 330 connection Pin hole, 340 mounting screw hole, 350 first ring wall, 360 second ring wall, 370 third ring wall, 400 groove, 500 reinforcement rib.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between various components in a specific posture (as shown in the accompanying drawings). The relative position relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, descriptions such as "first", "second", etc. in the present invention are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

In this utility model, unless otherwise expressly stipulated and limited, the terms "connection" and "fixing" should be understood in a broad sense. For example, "fixing" can be a fixed connection, a detachable connection, or an integral body; It can be a mechanical connection or an electrical connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. It can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly defined. . For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but they must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such technical solutions are The combination does not exist and is not within the protection scope required by the present utility model.

The rotor of the traction machine proposed by the embodiment of the present invention, as shown in Figures 1 to 5, includes: a stop ring 100; a rotor shaft 200. The rotor shaft 200 is located inside the stop ring 100 and along the stop ring 100 axial extension; the connecting wall 300 is located at the same end of the rotor shaft 200 and the stop ring 100, and connects the rotor shaft 200 and the stop ring 100, and is surrounded by the connecting wall 300, the rotor shaft 200 and the stop ring 100 into a groove 400; and a reinforcing rib 500. The reinforcing rib 500 is located in the groove 400 and is provided on the connecting wall 300. The reinforcing rib 500 is arranged to enhance the structural strength of the connecting wall 300.

In the rotor of the traction machine, the reinforcing ribs 500 are located in the groove 400 and are provided on the connecting wall 300. The reinforcing ribs 500 are used to increase the structural strength of the connecting wall 300, so that the connecting wall 300 is less likely to deform during use; The rotor is used in the traction machine, which can maintain the smooth operation of the traction machine for a long time, so the elevator lifting process is more stable.

In some exemplary embodiments, as shown in FIGS. 1 , 3 and 5 , the reinforcing ribs 500 include a plurality of reinforcing ribs 500 that are sequentially arranged in the circumferential direction of the rotor shaft 200 , and the multiple reinforcing ribs 500 are arranged based on The rotation of the rotor drives the air movement within the groove 400. This rotor is used in a traction machine. When the traction machine is running, the multiple reinforcing ribs 500 drive the air movement in the groove 400, which can improve the heat dissipation effect inside the traction machine. In this way, the temperature of the winding stator and permanent magnets is lower, and the motor The operating performance is better. The plurality of reinforcing ribs 500 may be set as 12 reinforcing ribs; or the plurality of reinforcing ribs 500 may be set as 24 reinforcing ribs; or the plurality of reinforcing ribs 500 may be set as 36 reinforcing ribs, etc.; it may be , the reinforcing ribs 500 are set as triangular ribs; or the reinforcing ribs 500 are set as special-shaped ribs, etc.; the above can achieve the purpose of the present application, and its purpose does not deviate from the design idea of the present utility model, so it will not be repeated here. All should fall within the protection scope of this application.

In some exemplary embodiments, as shown in FIGS. 1 to 3 and 5 , reinforcement grooves are provided on the sides of the connecting wall 300 . The reinforcing grooves include a plurality of first reinforcing grooves 310 sequentially disposed in the circumferential direction of the rotor shaft 200 and a plurality of second reinforcing grooves 320 sequentially disposed in the circumferential direction of the rotor shaft 200. The plurality of first reinforcing grooves 310 are located in the recess. On the side of the connecting wall 300 outside the groove 400, a plurality of first reinforcing grooves 310 are used to improve the structural strength of the connecting wall 300, reduce the weight of the connecting wall 300, and improve the heat dissipation effect of the connecting wall 300. A plurality of second reinforcing grooves 320 are located at On the side of the connecting wall 300 inside the groove 400, a plurality of second reinforcing grooves 320 are used to improve the structural strength of the connecting wall 300 and reduce the weight of the connecting wall 300. The plurality of first reinforcement grooves 310 may be configured as 4 first reinforcement grooves, 6 first reinforcement grooves, or 8 first reinforcement grooves, etc.; the plurality of second reinforcement grooves 320 may be configured as 6 second reinforcement grooves. Reinforcing grooves, 8 second reinforcing grooves or 10 second reinforcing grooves, etc.; the above can achieve the purpose of the present application, and its purpose does not deviate from the design idea of the present utility model. It will not be repeated here, and all should belong to the present application. within the scope of protection.

In some exemplary embodiments, as shown in Figure 2, the connecting wall 300 is provided with a connecting pin hole 330 and a mounting screw hole 340. The connecting pin hole 330 and the mounting screw hole 340 are used to fix the connecting wall 300 and the traction wheel. . Thereinto, there are multiple connecting pin holes 330 and multiple mounting screw holes 340 , and the multiple connecting pin holes 330 and the multiple mounting screw holes 340 are evenly distributed around the same circumference. The connecting pin passes through the traction wheel and the connecting pin hole 330, and the threaded section of the bolt passes through the traction wheel and is screwed into the mounting screw hole 340. The shear resistance of the connecting pin is better than that of the bolt, so that the rotor and the traction wheel The connection position has better shear resistance, and the connecting pin hole 330 is easier to process than the mounting screw hole 340 . It may be that the plurality of connection pin holes 330 are set as 2 connection pin holes, 4 connection pin holes or 6 connection pin holes, etc.; it may be that the plurality of installation screw holes 340 are set as 4 installation screw holes or 6 installation screw holes. screw holes or 8 mounting screw holes, etc.; the above can achieve the purpose of the present application, and the purpose does not deviate from the design idea of the present utility model. It will not be described in detail here, and all should fall within the protection scope of the present application.

In some exemplary embodiments, as shown in FIGS. 2 to 4 , the connecting wall 300 includes a first annular wall 350 extending in the radial direction of the rotor shaft 200 and a third annular wall 370 extending in the radial direction of the rotor shaft 200 . and a second annular wall 360 extending along the axial direction of the rotor shaft 200. The rotor shaft 200, the first annular wall 350, the second annular wall 360, the third annular wall 370 and the stop ring 100 are connected in sequence, and the reinforcing rib 500 connects the second annular wall 360 with the stop ring 100. An annular wall 350 and a second annular wall 360 . Among them, the first reinforcing groove 310 is opened on the side of the first annular wall 350 located outside the groove 400, and the second reinforcing groove 320 is opened on the side of the third annular wall 370 located inside the groove 400, connecting the pin hole 330 and the installation The screw holes 340 are located on the first annular wall 350 and outside the first reinforcing groove 310 in the radial direction of the rotor shaft 200 .

In some examples, as shown in FIGS. 2 to 4 , the second annular wall 360 also extends from an end thereof (ie, the second annular wall 360 ) connected to the first annular wall 350 to the second annular wall 360 (ie, the second annular wall 360 ). One end connected to the third annular wall 370 extends outward in the radial direction of the rotor shaft 200 . Wherein, as shown in FIG. 4 , the central angle A of the second ring wall 360 is set in the range of 20 degrees to 40 degrees. As shown in Figure 4, the central angle A of the second ring wall 360 can be set to 20 degrees, 30 degrees, or 40 degrees, etc., which can achieve the purpose of the present application, and its purpose does not deviate from the design idea of the present utility model. This will not be described again as they all fall within the protection scope of this application.

In some exemplary embodiments, as shown in FIG. 3 , the outer circumferential surface of the rotor shaft 200 includes a first annular surface 210 , a conical surface 220 and a second annular surface 230 arranged in sequence. The diameter of the conical surface 220 is from The end adjacent to the connecting wall 300 is tapered to the end far away from the connecting wall 300 . The first bearing is installed on the first annular surface 210 and the second bearing is installed on the second annular surface 230 . In this solution, the rotor shaft 200 has an integrated structure, and the coaxiality of the first annular surface 210 and the second annular surface 230 is higher. The diameter of the tapered surface 220 gradually decreases from the end adjacent to the connecting wall 300 to the end far away from the connecting wall 300, which can reduce the stress on the rotor shaft 200.

In some exemplary embodiments, as shown in FIGS. 2 and 3 , a shaft hole 240 is provided inside the rotor shaft 200 , and the shaft hole 240 can effectively reduce the weight of the rotor shaft 200 . The shaft hole 240 may be a blind hole, the opening of the blind hole has an opposite direction to the notch of the groove, and the opening of the blind hole is covered with a cover plate.

In some exemplary embodiments, as shown in FIGS. 1 to 3 , the rotor shaft 200 , the connecting wall 300 and the stop ring 100 are an integral structure, and the rotor can be made by a casting process.

The traction machine (not shown in the figure) proposed by the embodiment of the present invention includes the rotor of the traction machine described in any of the above embodiments.

This traction machine has all the advantages of the rotor of the traction machine provided by any of the above embodiments, and will not be described again here.

To sum up, in the rotor of the traction machine proposed in the embodiment of the present invention, the reinforcing ribs are located in the groove and are provided on the connecting wall. The reinforcing ribs are used to enhance the structural strength of the connecting wall, so that the connecting wall is more durable during use. Not easy to deform; this rotor is used in traction machines, which can maintain the smooth operation of the traction machine for a long time, so the elevator lifting process is more stable.

In the description of this application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply the device or element to which it refers. Must have a specific orientation, be constructed and operate in a specific orientation and therefore should not be construed as a limitation on this application.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In this application, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise specified restrictions. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In this application, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and cannot be understood as limitations of the present application. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present application. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. A rotor of a traction machine, comprising:

a stop ring;

a rotor shaft located inside the stop ring and extending in an axial direction of the stop ring;

the connecting wall is positioned at the same end of the rotor shaft and the stop ring and is used for connecting the rotor shaft and the stop ring, and the connecting wall, the rotor shaft and the stop ring are encircled to form a groove; and

the reinforcing ribs are positioned in the grooves and arranged on the connecting wall and are arranged to improve the structural strength of the connecting wall.

2. The rotor of the traction machine according to claim 1, wherein the reinforcing ribs include a plurality of the reinforcing ribs, which are sequentially provided in a circumferential direction of the rotor shaft, configured to drive air movement in the groove based on rotation of the rotor.

3. The rotor of the traction machine as claimed in claim 1, wherein the side of the connection wall is provided with a reinforcing groove.

4. The rotor of the traction machine according to claim 3, wherein the reinforcing grooves include a plurality of first reinforcing grooves and a plurality of second reinforcing grooves which are sequentially disposed in a circumferential direction of the rotor shaft, the plurality of first reinforcing grooves being located at a side of the connection wall located outside the groove, the plurality of second reinforcing grooves being located at a side of the connection wall located inside the groove.

5. The rotor of the traction machine as set forth in claim 1, wherein the connection wall is provided with a connection pin hole and a mounting screw hole.

6. The rotor of the traction machine according to claim 5, wherein the connection pin holes and the installation screw holes each comprise a plurality of connection pin holes and a plurality of installation screw holes uniformly distributed on the same circumference.

7. The rotor of a hoisting machine according to any one of claims 1 to 6, characterized in that the connecting wall includes a first annular wall and a third annular wall extending in a radial direction of the rotor shaft and a second annular wall extending in an axial direction of the rotor shaft, the first annular wall, the second annular wall, the third annular wall, and the stop ring being connected in this order, the reinforcing rib connecting the first annular wall and the second annular wall.

8. The rotor of the traction machine as set forth in claim 7, wherein the second annular wall further extends outwardly in a radial direction of the rotor shaft from an end thereof connected to the first annular wall to an end thereof connected to the third annular wall.

9. The rotor of a traction machine according to any one of claims 1 to 6, wherein an axial hole is provided in an inside of the rotor shaft, an outer circumferential surface of the rotor shaft includes a first annular surface, a tapered surface, and a second annular surface which are sequentially provided, and a caliber of the tapered surface tapers from an end adjacent to the connecting wall to an end distant from the connecting wall.

10. A traction machine comprising the rotor of the traction machine of any one of claims 1 to 9.