Novel mining scraper driving system cushion frame

By designing a new type of drive system pad for mining scraper conveyors, the problem of large radial force on the output shaft of the internal spline of the permanent magnet synchronous motor was solved, extending the motor's lifespan, reducing maintenance costs, and enabling convenient assembly.

CN224083309UActive Publication Date: 2026-04-03QIANSHUN PERMANENT MAGNET (TIANJIN) TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The existing drive system pad frame for mining scraper conveyors suffers from a large radial force on the spline output shaft of the permanent magnet synchronous motor during use, which affects its service life and makes assembly inconvenient.

Method used

A novel drive system pad frame for mining scraper conveyors has been designed, comprising a welded frame body, a labyrinth seal cover, a bearing housing, a bearing, and an external spline connecting shaft. The components are fixedly connected by screws. The labyrinth seal cover is replaceable. The bearing supports the weight of the external spline connecting shaft, reducing radial force, extending the life of the motor, and facilitating assembly through through holes.

Benefits of technology

It reduces the radial force on the splined output shaft of the permanent magnet synchronous motor, extends the motor's service life, reduces maintenance costs, and improves assembly convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel mining scraper machine driving system cushion frame which comprises an assembly welding frame body, one end of the assembly welding frame body is fixedly connected with a labyrinth sealing cover through a screw, a bearing seat is arranged in the labyrinth sealing cover, a bearing is arranged in the bearing seat, a spacer bush is arranged at the top end of the bearing, and the spacer bush is connected with the labyrinth sealing cover through a screw. An external spline connecting shaft is arranged in the bearing, and the top end of the external spline connecting shaft is connected with a mining flame-proof speed reduction permanent magnet synchronous motor. According to the utility model, the radial force of the internal spline output shaft of the permanent-magnet synchronous motor is reduced, the service life of the speed-reducing permanent-magnet synchronous motor is prolonged, the weight of the external spline connecting shaft is borne by the bearing with a self-aligning function, and the coaxiality of the permanent-magnet synchronous motor and the transmission shaft of the scraper is widened, so that the assembly is more convenient.
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Description

Technical Field

[0001] This utility model belongs to the technical field of mining scraper conveyors, and in particular relates to a new type of drive system pad for mining scraper conveyors. Background Technology

[0002] The drive system pad frame of a mining scraper conveyor is an important component of the scraper conveyor drive system. The mining explosion-proof geared permanent magnet synchronous motor drives the scraper conveyor to rotate through the external spline connecting shaft, realizing the function of the scraper conveyor conveying materials.

[0003] The existing support frame has a large radial force on the spline output shaft of the permanent magnet synchronous motor during use, which greatly affects the service life of the geared permanent magnet synchronous motor. It is also inconvenient to assemble and has poor practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of drive system pad for mining scraper conveyors to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A novel drive system pad frame for a mining scraper conveyor includes a welded frame body. One end of the welded frame body is fixedly connected to a labyrinth sealing cover by screws. A bearing seat is provided inside the labyrinth sealing cover. A bearing is provided inside the bearing seat. A spacer is provided at the top of the bearing. An external spline connecting shaft is provided inside the bearing. A mining explosion-proof geared permanent magnet synchronous motor is connected to the top of the external spline connecting shaft, and a scraper conveyor is connected to the bottom of the external spline connecting shaft. The mining explosion-proof geared permanent magnet synchronous motor is mounted on the welded frame body.

[0006] Preferably, an elastic retaining ring for the hole is provided between the spacer and the bearing housing.

[0007] Preferably, the screw is an internal hexagon head screw.

[0008] Preferably, the screw is provided with a spring washer.

[0009] Preferably, the surface of the welding frame is provided with a through hole for the external spline connecting shaft to pass through.

[0010] The novel drive system pad frame for a mining scraper conveyor of this utility model has the following advantages:

[0011] 1. The pad frame of this utility model serves as both a fixing component for the explosion-proof geared permanent magnet synchronous motor used in mining and a support component for the external spline connecting shaft. It reduces the radial force on the internal spline output shaft of the permanent magnet synchronous motor, extending the service life of the geared permanent magnet synchronous motor. At the same time, the bearing with self-aligning function bears the weight of the external spline connecting shaft and relaxes the coaxiality between the permanent magnet synchronous motor and the scraper conveyor drive shaft, making assembly more convenient.

[0012] 2. This utility model uses a maze sealing cover connected to the welded frame body by screws. When the maze sealing cover wears down and affects the seal, it can be directly replaced, and the welded frame body can continue to be used, which greatly reduces maintenance costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure when the present invention is applied.

[0016] The markings in the diagram are as follows: 1. Labyrinth seal cover; 2. Bearing; 3. Screw; 4. Spring washer; 5. Welded frame; 6. Bearing housing; 7. Spacer; 8. Elastic retaining ring for the hole. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0018] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0021] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0022] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a novel drive system pad for a mining scraper conveyor.

[0023] like Figure 1-2As shown, this utility model discloses a novel drive system support frame for a mining scraper conveyor, comprising a welded frame body 5. One end of the welded frame body 5 is fixedly connected to a labyrinth seal cover 1 by screws 3. Screws 3 are hexagonal socket head cap screws, and spring washers 4 are provided on screws 3. The labyrinth seal cover 1 is connected to the welded frame body 5 by screws 3. When the labyrinth seal cover 1 wears and affects the seal, it can be directly replaced, and the welded frame body 5 can continue to be used, greatly reducing maintenance costs. A bearing seat 6 is provided inside the labyrinth seal cover 1, and a bearing 2 is provided inside the bearing seat 6. A spacer 7 is provided at the top of the bearing 2, and an elastic retaining ring 8 is provided between the spacer 7 and the bearing seat 6. An external spline connecting shaft is provided inside the bearing 2. A mining explosion-proof geared permanent magnet synchronous motor is connected to the top of the external spline connecting shaft, and a scraper conveyor is connected to the bottom of the external spline connecting shaft. The mining explosion-proof geared permanent magnet synchronous motor is mounted on the welded frame body 5, and the surface of the welded frame body 5 is provided with through holes for the external spline connecting shaft to pass through.

[0024] The working principle of this new type of mining scraper conveyor drive system pad frame is as follows: Compared with the old structure, this pad frame reduces the radial force on the spline output shaft of the permanent magnet synchronous motor, extends the service life of the reduction permanent magnet synchronous motor, and the bearing with self-aligning function bears the weight of the external spline connecting shaft. It also relaxes the coaxiality between the permanent magnet synchronous motor and the scraper conveyor drive shaft, making assembly more convenient.

[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A novel mine scraper drive system mat frame characterized by: The utility model relates to a kind of mine explosion-proof reduction permanent magnet synchronous motor, including group welding frame body (5), one end of the group welding frame body (5) is fixedly connected with labyrinth seal cover (1) by screw (3), bearing seat (6) is provided in the labyrinth seal cover (1), bearing (2) is provided in the bearing seat (6), the top of the bearing (2) is provided with spacer sleeve (7), outer spline connecting shaft is provided in the bearing (2), mine explosion-proof reduction permanent magnet synchronous motor is connected to the top of the outer spline connecting shaft, and scraper machine is connected to the bottom of the outer spline connecting shaft, and the mine explosion-proof reduction permanent magnet synchronous motor is installed on group welding frame body (5).

2. A novel mine scraper drive system mat support according to claim 1, characterized in that: Elastic ring (8) is provided between the spacer sleeve (7) and the bearing seat (6).

3. A novel mine scraper drive system mat support according to claim 1, characterized in that: The screw (3) is a hexagonal cylindrical head screw.

4. A novel mine scraper drive system mat support according to claim 1, characterized in that: Spring washer (4) is provided on the screw (3).

5. A novel mine scraper drive system mat support according to claim 1, characterized in that: The surface of the group welding frame body (5) is provided with a through hole for penetrating the outer spline connecting shaft.