Disc type motor with braking function for spinning machine

Abstract

The utility model discloses a spinning machine disc type motor with a brake function, which comprises a shell, a main shaft, a rotor, a stator, a front end cover, a rear end cover and a brake assembly, the brake assembly is arranged in the shell and positioned on the outer side of the main shaft, and the brake assembly comprises annular brake grooves and friction blocks which are symmetrically arranged on two sides of the main shaft. The friction block is embedded in the side wall of the side, close to the main shaft, of the annular brake groove, the position, corresponding to the friction block, of the main shaft is of a conical structure, an annular guide plate is arranged at the position, corresponding to the annular brake groove, of the inner side of the rear end cover, and the annular brake groove is in sliding and sealing connection with the annular guide plate. The fluid with certain pressure is injected into the annular braking groove, the friction block can be pushed to tightly hold the outer wall of the main shaft, and therefore the braking effect of the main shaft is achieved, the situation that due to continuous inertia rotation of the main shaft, yarn is excessively pulled or broken is avoided, and the yarn is protected.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a disc motor for a spinning machine with braking function. Background Technology

[0002] In spinning machinery, the drive motor is used to precisely control the speed and position of key components such as rollers and drafting devices to ensure stable yarn tension, thereby reducing breakage rate and improving yarn uniformity.

[0003] Existing drive motors for spinning machines, such as the low-inertia, low-power servo motor for high-speed spinning machines disclosed in patent CN209001715U, utilize the rotor magnetic ring and the interaction between the stator with auxiliary slots, the ultra-low inertia rotor, and the rotor magnetic ring to increase the rotational speed during operation, achieving the characteristics of low inertia and high speed. However, they lack braking functionality. An additional brake is required to prevent the motor from continuing to run due to its own inertia or the inertia of its connected transmission structure when the machine stops, which could cause excessive pulling or even breakage of the yarn. Therefore, the existing drive motor structure for spinning machines needs improvement. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model discloses a disc motor for a spinning machine with braking function, including a housing, a main shaft, a rotor, a stator, a front cover, a rear cover, and a braking assembly. The main shaft is axially disposed inside the housing, and the rotor is coaxially disposed outside the main shaft. Several magnets are provided on the circumferential surface of the rotor. The stator is disposed on the inner wall of the housing and located outside the rotor. The front cover and the rear cover are respectively disposed at the front and rear ends of the housing. The braking assembly is disposed inside the housing and located outside the main shaft. The braking assembly includes annular braking grooves and friction blocks symmetrically disposed on both sides of the main shaft. The friction blocks are embedded in the side wall of the annular braking grooves near the main shaft, and the position of the main shaft corresponding to the friction blocks is a conical structure. An annular guide plate is provided on the inner side of the rear cover at the position corresponding to the annular braking grooves. The annular braking grooves and the annular guide plate are slidably and sealingly connected.

[0005] Furthermore, multiple sliding sealing rings are provided between the inner wall of the annular brake groove and the outer wall of the annular guide plate.

[0006] Furthermore, the rear end cover is provided with a fluid inlet / outlet at a position corresponding to the annular brake groove.

[0007] Furthermore, a bearing is provided at the rotatable connection between the main shaft and the front end cover, and a sealing cover is provided on both the inner and outer sides of the bearing. A rotating sealing ring is provided between the inner side of the sealing cover and the outer wall of the main shaft.

[0008] Furthermore, the rotor is fixedly connected to the main shaft by a first bolt, and the magnet is fixedly connected to the rotor by a second bolt.

[0009] Furthermore, a protective plate is provided on the outer side of the front end cover. The protective plate is located on the outer side of the end of the main shaft, and the protective plate is fixedly connected to the front end cover by a bolt assembly.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention injects a fluid with a certain pressure into the annular braking groove, which pushes the friction block to grip the outer wall of the main shaft, thereby achieving the braking effect of the main shaft and preventing the yarn from being overstretched or broken due to the continuous rotation of the main shaft due to inertia, thus protecting the yarn. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is an axial structural cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the end face structure of the annular brake groove in this utility model;

[0016] Figure 4 for Figure 2 Enlarged view of the local structure at point A;

[0017] Figure 5 for Figure 2 Enlarged view of the local structure at point B.

[0018] Figure label:

[0019] 1-Housing, 2-Main shaft, 3-Rotor, 4-Stator, 5-Front end cover, 6-Rear end cover, 7-First bolt, 8-Magnet, 9-Second bolt, 10-Third bolt, 11-Protective plate, 12-Bolt assembly, 13-Annular brake groove, 14-Friction block, 15-Annular guide plate, 16-Sliding seal ring, 17-Fluid inlet / outlet, 18-Bearing, 19-Sealing cover, 20-Rotary seal ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0023] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. 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 a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1-2 As shown, the disc motor for a spinning machine with braking function in this embodiment includes a housing 1, a main shaft 2, a rotor 3, a stator 4, a front end cover 5, a rear end cover 6, and a braking assembly. The main shaft 2 is axially arranged inside the housing 1, and the rotor 3 is coaxially arranged outside the main shaft 2 and the two are fixedly connected by a first bolt 7. Several magnets 8 are provided on the circumferential surface of the rotor 4, and each magnet 8 is fixedly connected to the rotor 3 by a second bolt 9. The stator 4 is arranged on the inner wall of the housing 1 and located outside the rotor 3.

[0025] The front cover 5 and the rear cover 6 are fixed to the front and rear ends of the housing 1 respectively by the third bolt 10. The braking assembly is located inside the housing 1 and outside the main shaft 2.

[0026] A protective plate 11 is provided on the outer side of the front cover 5. The protective plate 11 is located on the outer side of the end of the main shaft 2. The protective plate 11 and the front cover 5 are fixedly connected by a bolt assembly 12.

[0027] like Figure 3As shown, the braking assembly includes annular brake grooves 13 symmetrically arranged on both sides of the main shaft 2 and friction blocks 14. The friction blocks 14 are embedded in the side wall of the annular brake grooves 13 near the main shaft 2, and the position of the main shaft 2 corresponding to the friction blocks 14 is a conical structure. The friction blocks 14 are made of materials similar to automotive brake pads, such as rubber, composite ceramics, and carbon fiber.

[0028] like Figure 4 As shown, an annular guide plate 15 is provided on the inner side of the rear end cover 6 at a position corresponding to the annular brake groove 13. The annular brake groove 13 and the annular guide plate 15 are slidably connected, and multiple sliding sealing rings 16 are provided between the inner wall of the annular brake groove 13 and the outer wall of the annular guide plate 15. A fluid inlet / outlet 17 is provided on the rear end cover 6 at a position corresponding to the annular brake groove 13.

[0029] like Figure 5 As shown, a bearing 18 is provided at the rotatable connection between the main shaft 2 and the front cover 5. A sealing cover 19 is provided on both the inner and outer sides of the bearing 18. A rotating sealing ring 20 is provided between the inner side of the sealing cover 19 and the outer wall of the main shaft 2 to achieve the sealing between the main shaft 2 and the front cover 5.

[0030] In the initial state, the brake assembly is located near the rear cover 6, and the annular brake groove 13 is filled with an appropriate amount of fluid (such as hydraulic oil or inert gas), and the fluid inlet / outlet 17 is connected to the corresponding fluid supply equipment (such as a hydraulic station or air compressor) through a pipe.

[0031] When braking of the spindle 2 is required, high-pressure fluid is introduced into the annular brake groove 13 through the fluid inlet / outlet 17. The high-pressure fluid pushes the annular brake groove 13 upward, forming a... Figure 4 As shown in the diagram, the conical surfaces of the friction block 14 and the main shaft 2 are tightly pressed together, locking the main shaft 2 in place. This achieves the braking effect of the main shaft 2, preventing the yarn from being excessively stretched or broken due to the continuous rotation of the main shaft 2 due to inertia, thus protecting the yarn.

[0032] When it is necessary to release the brake, fluid is drawn out through the fluid inlet / outlet 17, the pressure in the annular brake groove 13 decreases and forms a negative pressure, the annular brake groove 13 falls back and resets along the annular guide plate 15, causing the friction block 14 to disengage from the main shaft 2 and reset, thereby releasing the brake on the main shaft 2.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A disc motor for a spinning machine with braking function, comprising a housing, a main shaft, a rotor, a stator, a front cover, a rear cover, and a braking assembly, wherein the main shaft is axially disposed within the housing, the rotor is coaxially disposed outside the main shaft, a plurality of magnets are disposed on the circumferential surface of the rotor, the stator is disposed on the inner wall of the housing and located outside the rotor, and the front cover and the rear cover are respectively disposed at the front and rear ends of the housing, characterized in that: The braking assembly is disposed inside the housing and located outside the main shaft. The braking assembly includes annular braking grooves and friction blocks symmetrically arranged on both sides of the main shaft. The friction blocks are embedded in the side wall of the annular braking grooves near the main shaft. The position of the main shaft corresponding to the friction blocks is a conical structure. An annular guide plate is provided on the inner side of the rear end cover at the position corresponding to the annular braking grooves. The annular braking grooves and the annular guide plate are slidably and sealed together.

2. The disc motor for a spinning machine with braking function according to claim 1, characterized in that: Multiple sliding sealing rings are provided between the inner wall of the annular brake groove and the outer wall of the annular guide plate.

3. The disc motor for a spinning machine with braking function according to claim 2, characterized in that: The rear end cover is provided with a fluid inlet / outlet at a position corresponding to the annular brake groove.

4. The disc motor for a spinning machine with braking function according to claim 1, characterized in that: A bearing is provided at the rotatable connection between the main shaft and the front end cover. A sealing cover is provided on both the inner and outer sides of the bearing. A rotary sealing ring is provided between the inner side of the sealing cover and the outer wall of the main shaft.

5. The disc motor for a spinning machine with braking function according to claim 1, characterized in that: The rotor is fixedly connected to the main shaft by a first bolt, and the magnet is fixedly connected to the rotor by a second bolt.

6. The disc motor for a spinning machine with braking function according to claim 1, characterized in that: A protective plate is provided on the outer side of the front cover. The protective plate is located on the outer side of the end of the main shaft, and the protective plate is fixedly connected to the front cover by a bolt assembly.

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