Explosion-proof and waterproof slip ring suitable for mining

Abstract

The utility model is applicable to the technical field of explosion-proof slip rings, and provides an explosion-proof waterproof slip ring applicable to mining, which comprises a rotor and a stator, a copper ring and an insulating layer are fixedly mounted on a rotating shaft, a high-temperature-resistant waterproof ring is further mounted on the rotating shaft, an explosion-proof joint I is arranged at the end part of the rotating shaft, an inner shell is arranged on the outer side of the rotating shaft, and an outer shell II is arranged on the outer side of the rotating shaft. A rear end cover is arranged on the side face of the inner shell, an outer shell is installed on the outer side of the rear end cover and the outer side of the inner shell, a damping ring is further installed between the outer shell and the rear end cover, and an annular space among the rear end cover, the outer shell and the inner shell is filled with anti-seismic high-temperature elastic glue. The rotor adopts an integrated forming process, the size precision and the sealing performance of the rotating shaft are guaranteed, the friction coefficient can be reduced, the service life of the slip ring is prolonged, and meanwhile, the reliability of conduction between a loop and equipment can be improved through an intercommunication connection structure of the anti-vibration high-temperature elastic glue and the outer shell.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof slip rings, and in particular relates to an explosion-proof and waterproof slip ring suitable for mining. Background Art

[0002] Explosion-proof slip ring is a highly safe and reliable conductive slip ring, which realizes conductivity through relative friction between conductive contact materials. In the tunneling system of deep-well mining locomotives, the equipment works for a long time under explosion shock waves and high humidity environment, which has high requirements on the life, stability and precision of transmission parts. It must maintain normal operation in the explosion-proof grade EXDIIBT3, IP67 environment. The existing slip ring is only suitable for EXDIIBT4, IP65 environment. Once the protection is not up to standard, the electrical signal transmission will be unstable and fail, which is easy to cause great safety hazards to the tunneling equipment of mining locomotives.

[0003] To this end, the slip ring proposed in this application adopts a multi-brush structure, and uses an explosion-proof joint to protect the outlet. It also uses high-strength stainless steel and imported temperature-resistant materials, plus a special lubrication process, which can ensure the normal operation of the slip ring in an explosion-proof grade EXDIIBT3, IP67 environment. At the same time, it can also extend the life of ordinary products by more than 5 times, meeting the long-term stable use requirements of electrical signals of tunneling equipment of deep-well mining locomotives. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide an explosion-proof and waterproof slip ring suitable for mining, aiming to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is implemented as follows: an explosion-proof and waterproof slip ring suitable for mining, including a rotor and a stator, and also including:

[0006] The rotor comprises a copper ring, an insulating layer, a high temperature resistant waterproof ring, a rotating shaft and an explosion-proof joint 1. The rotating shaft is arranged transversely in the slip ring. The copper ring and the insulating layer are fixedly mounted on the rotating shaft. A high temperature resistant waterproof ring is also mounted on the rotating shaft to keep the copper ring and the insulating layer dry. The explosion-proof joint 1 is arranged at the end of the rotating shaft to protect the internal wire from external impact.

[0007] A joint base is installed on the rotating shaft and the explosion-proof joint;

[0008] The stator comprises an outer shell, an inner shell, a shock-absorbing ring, shock-resistant high-temperature elastic rubber and explosion-proof joint No. 2; the inner shell is arranged on the outer side of the rotating shaft; a rear end cover is provided on the side of the inner shell, and explosion-proof joint No. 2 is installed on the rear end cover; an outer shell is installed on the outer side of the rear end cover and the inner shell, a shock-absorbing ring is also installed between the outer shell and the rear end cover, and the annular space between the rear end cover, the outer shell and the inner shell is filled with shock-resistant high-temperature elastic rubber, and the shock-absorbing ring cooperates with the shock-resistant high-temperature elastic rubber to buffer external impact force and waterproof flushing.

[0009] Preferably, the copper ring, the insulating layer and the cable arranged in the connector base are formed into an integrated structure by an injection molding process, so as to ensure dimensional accuracy and sealing performance.

[0010] Preferably, a spring sheet is arranged on the copper ring, and the spring sheet is located between adjacent insulating layers;

[0011] The copper ring and the spring are made of copper material;

[0012] The surface of the copper ring is processed by gold plating.

[0013] Preferably, one side of the outer shell abuts against the front end cover, and one end of the outer shell abuts against the rear end cover;

[0014] The outer shell and the front end cover, the outer shell and the rear end cover, and the outer shell and the inner shell are all fixed by screws.

[0015] Preferably, the rotating shaft is also rotatably connected to a shock-resistant high-temperature bearing installed in the inner shell, so as to reduce friction during rotation.

[0016] The utility model provides an explosion-proof and waterproof slip ring suitable for mining, which has the following advantages compared with the prior art:

[0017] 1. It adopts high temperature wear-resistant and waterproof structure, explosion-proof joint 1 and explosion-proof joint 2 cooperate with shock-resistant high temperature elastic rubber, and can operate normally in the explosion-proof grade EXDIIBT3 and IP67 environment;

[0018] 2. The rotor adopts an integrated molding process to ensure the dimensional accuracy and sealing of the rotating shaft;

[0019] 3. The double-layer smooth structure of the ring channel and the insulation layer between the copper ring and the inner shell can reduce the friction coefficient and extend the life of the slip ring;

[0020] 4. The interconnection structure between the anti-seismic high-temperature elastic rubber and the outer shell can improve the reliability of the conduction between the loop and the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a structural example of an explosion-proof and waterproof slip ring suitable for mining provided by an embodiment of the utility model;

[0022] Figure 2 A front view of an explosion-proof and waterproof slip ring suitable for mining provided by an embodiment of the utility model;

[0023] Figure 3 A left view of an explosion-proof and waterproof slip ring suitable for mining provided in an embodiment of the utility model.

[0024] In the attached figure: 1-rotor; 11-copper ring; 12-insulating layer; 13-high temperature resistant waterproof ring; 14-rotating shaft; 15-explosion-proof joint 1; 2-stator; 21-outer shell; 22-inner shell; 23-shock-absorbing ring; 24-vibration-resistant high temperature elastic rubber; 25-explosion-proof joint 2; 3-joint base; 4-front end cover; 5-vibration-resistant high temperature bearing; 6-rear end cover; 7-shrapnel. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] like Figure 1-Figure 3As shown, a structural diagram of an explosion-proof and waterproof slip ring suitable for mining provided by an embodiment of the utility model includes a rotor 1 and a stator 2. The rotor 1 includes a copper ring 11, an insulating layer 12, a high-temperature resistant waterproof ring 13, a rotating shaft 14 and an explosion-proof joint 15. The rotating shaft 14 is arranged horizontally in the slip ring. The copper ring 11 and the insulating layer 12 are fixedly mounted on the rotating shaft 14. The rotating shaft 14 is also equipped with a high-temperature resistant waterproof ring 13 to keep the copper ring 11 and the insulating layer 12 dry. The explosion-proof joint 15 is arranged at the end of the rotating shaft 14 to protect the internal wire from external impact; the rotating shaft 14 and the explosion-proof joint 15 are equipped with a joint base 3; the stator 2 includes an outer shell 21, an inner The inner shell 22 is arranged on the outer side of the rotating shaft 14, and a rear end cover 6 is provided on the side of the inner shell 22. The rear end cover 6 is installed with a second explosion-proof joint 25 for protecting the stator wire from damage by external impact; an outer shell 21 is installed on the outer side of the rear end cover 6 and the inner shell 22, and a shock absorbing ring 23 is also installed between the outer shell 21 and the rear end cover 6. The annular space between the rear end cover 6, the outer shell 21 and the inner shell 22 is filled with a shock resistant high temperature elastic rubber 24, and the shock resistant high temperature elastic rubber 24 has high-density fiber and high temperature resistance, and the shock absorbing ring 23 cooperates with the shock resistant high temperature elastic rubber 24 to buffer external impact and waterproof flushing.

[0028] The present application provides an explosion-proof and waterproof slip ring suitable for mining, which adopts a high-temperature wear-resistant and waterproof structure. The explosion-proof joint 15, the explosion-proof joint 25 and the shock-resistant high-temperature elastic rubber 24 cooperate to operate normally under the explosion-proof grade EXDIIBT3 and IP67 environment; the rotor 1 adopts an integrated molding process to ensure the dimensional accuracy and sealing of the rotating shaft 14; the double-layer formed smooth structure of the ring channel and the insulating layer 12 between the copper ring 11 and the inner shell 22 can reduce the friction coefficient and extend the life of the slip ring; the shock-resistant high-temperature elastic rubber 24 and the outer shell 21 are interconnected and connected, which can improve the reliability of the conduction between the ring channel and the equipment.

[0029] In one example of the present invention, the rotating shaft 14 is also rotatably connected to the shock-resistant high-temperature bearing 5 installed in the inner shell 22, and is assisted by high-temperature lubricating oil to reduce the friction during rotation, thereby further enhancing the reliability of the slip ring; in addition, during use, strict requirements are placed on the surface finish and coaxiality of the copper ring 11 on the rotating shaft 14 to ensure smooth and reliable signal transmission during product operation.

[0030] like Figure 1 As shown, as a preferred embodiment of the present utility model, the copper ring 11, the insulating layer 12 and the cable arranged in the connector base 3 are formed into an integrated structure through an injection molding process.

[0031] During the specific implementation of this embodiment, multiple components are formed into one piece by injection molding, which can improve the stability of the structure, avoid loosening during operation, and effectively ensure dimensional accuracy and sealing.

[0032] like Figure 1 As shown, as another preferred embodiment of the utility model, a spring sheet 7 is arranged on the copper ring 11, and the spring sheet 7 is located between adjacent insulating layers 12;

[0033] The copper ring 11 and the spring piece 7 are made of copper material, and imported copper material is selected as needed. Its high hardness ensures the wear resistance of the slip ring and increases the service life of the slip ring;

[0034] The surface of the copper ring 11 is processed by gold plating.

[0035] In the specific implementation of this embodiment, it is known that gold is the metal with the best electrical conductivity among solid metals, and the copper ring 11 treated by the gold plating process further improves its surface smoothness, electrical conductivity and contact performance.

[0036] like Figure 1 As shown, as another preferred embodiment of the utility model, one side of the outer shell 21 abuts against the front cover 4, and one end of the outer shell 21 abuts against the rear cover 6;

[0037] The outer shell 21 and the front end cover 4, the outer shell 21 and the rear end cover 6, and the outer shell 21 and the inner shell 22 are all fixed by screws.

[0038] In the present application, the thickness of the outer shell 21 and the inner shell 22 can be adjusted as needed, and the outer shell 21 and the inner shell 22 have high strength limit, elastic limit, yield limit and fatigue resistance limit comparable to special steel, and at the same time have high electrical conductivity, thermal conductivity, high strength, corrosion resistance, wear resistance, good casting performance, non-magnetic and impact-free spark characteristics.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An explosion-proof and waterproof slip ring suitable for mining, including a rotor and a stator, It is characterized in that Also includes: The rotor comprises a copper ring, an insulating layer, a high temperature resistant waterproof ring, a rotating shaft and an explosion-proof joint 1. The rotating shaft is arranged transversely in the slip ring. The copper ring and the insulating layer are fixedly mounted on the rotating shaft. A high temperature resistant waterproof ring is also mounted on the rotating shaft to keep the copper ring and the insulating layer dry. The explosion-proof joint 1 is arranged at the end of the rotating shaft to protect the internal wire from external impact. A joint base is installed on the rotating shaft and the explosion-proof joint; The stator comprises an outer shell, an inner shell, a shock-absorbing ring, shock-resistant high-temperature elastic rubber and explosion-proof joint No. 2; the inner shell is arranged on the outer side of the rotating shaft; a rear end cover is provided on the side of the inner shell, and explosion-proof joint No. 2 is installed on the rear end cover; an outer shell is installed on the outer side of the rear end cover and the inner shell, a shock-absorbing ring is also installed between the outer shell and the rear end cover, and the annular space between the rear end cover, the outer shell and the inner shell is filled with shock-resistant high-temperature elastic rubber, and the shock-absorbing ring cooperates with the shock-resistant high-temperature elastic rubber to buffer external impact force and waterproof flushing.

2. According to claim 1, a slip ring suitable for explosion-proof and waterproof mining, It is characterized in that The copper ring, the insulating layer and the cable arranged in the joint base are formed into an integrated structure through an injection molding process, so as to ensure dimensional accuracy and sealing performance.

3. The explosion-proof and waterproof slip ring suitable for mining according to claim 1, It is characterized in that The copper ring is provided with a spring sheet, and the spring sheet is located between adjacent insulating layers; The copper ring and the spring are made of copper material; The surface of the copper ring is processed by gold plating.

4. The explosion-proof and waterproof slip ring for mining according to claim 1, It is characterized in that One side of the outer shell abuts against the front end cover, and one end of the outer shell abuts against the rear end cover; The outer shell and the front end cover, the outer shell and the rear end cover, and the outer shell and the inner shell are all fixed by screws.

5. The explosion-proof and waterproof slip ring for mining according to claim 1, It is characterized in that The rotating shaft is also rotatably connected to a shock-resistant high-temperature bearing installed in the inner shell so as to reduce friction during rotation.

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