Mining explosion-proof cavity for motor

Abstract

The utility model provides a mining explosion-proof cavity for a motor, which comprises a motor cavity shell and a wiring cavity cover plate, the top of the motor cavity shell is provided with the motor cavity cover plate, and the motor is fixed inside the motor cavity shell through an inner hexagon screw; an output shaft cover plate is arranged at the bottom of the motor cavity shell, an output shaft is arranged at the bottom of the motor, the output shaft of the motor is connected with a motor connecting shaft, and the motor connecting shaft is connected with the output shaft cover plate through a deep groove ball bearing. The weight of the mining explosion-proof cavity for the motor is reduced, the volume of the mining explosion-proof cavity for the motor is reduced, and the safety and the stability of the servo motor in normal work are ensured.

Description

Technical Field

[0001] The utility model belongs to the field of explosion-proof motor equipment for mining, and particularly relates to an explosion-proof cavity for a motor for mining. Background Art

[0002] With the changes of the times and the development of science and technology, more and more inspection sites use rail inspection robots to replace manual inspections, especially in dangerous areas such as coal mines, underground mine tunnels, and drainage pipes. The motor is the core power source for the normal operation of the rail inspection robot. However, the mining explosion-proof motors on the market are large in size and heavy in weight, and cannot be used for rail inspection robots.

[0003] To address the above problems, many explosion-proof chambers for ordinary motors have appeared on the market. However, most explosion-proof chambers have poor sealing, heavy weight, low stability, low safety, and overall unsightly appearance, and cannot operate safely and reliably in methane and explosive gas or humid environments. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an explosion-proof cavity for a motor for mining, so as to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: an explosion-proof cavity for a motor for mining, comprising: a motor cavity shell and a wiring cavity cover plate, a motor cavity cover plate is arranged on the top of the motor cavity shell, and the motor is fixed inside the motor cavity shell by hexagon socket screws;

[0006] An output shaft cover is arranged at the bottom of the motor cavity housing, and an output shaft is provided at the bottom of the motor, the output shaft of the motor is connected to the motor connecting shaft, and the motor connecting shaft is connected to the output shaft cover through a deep groove ball bearing;

[0007] The wiring cavity cover is fixed to the motor cavity housing by means of hexagon socket screws to form a fourth flameproof joint surface, and the wiring row is fixed inside the wiring cavity by means of hexagon socket screws.

[0008] As a preferred embodiment, the motor cavity housing has a motor cavity inside, the wiring cavity cover has a wiring cavity inside, and the motor cavity and the wiring cavity together constitute a flameproof cavity.

[0009] As a preferred implementation, the motor cavity cover is fixed to the top of the motor cavity housing by means of hexagon socket screws, and a third flameproof joint surface is formed between the motor cavity cover and the motor cavity housing.

[0010] As a preferred embodiment, the motor connecting shaft and the deep groove ball bearing are fixed by shaft stops and hole stops, and an oil seal is also arranged between the motor connecting shaft and the deep groove ball bearing. After one end of the motor connecting shaft is inserted into the output shaft of the motor, the output shaft cover is fixed to the outside of the motor cavity housing by hexagon socket screws, the motor cavity housing and the output shaft cover form a first explosion-proof joint surface, and the output shaft cover and the motor connecting shaft form a second explosion-proof joint surface.

[0011] As a preferred embodiment, the connecting section of the first cable lead-in device and the second cable lead-in device is welded to the motor cavity housing, and the plug is fixed in the connecting section of the first cable lead-in device and the second cable lead-in device by means of threads.

[0012] As a preferred embodiment, the first flameproof wall terminal and the second flameproof wall terminal are fixed between the motor cavity and the wiring cavity by means of threads and nuts.

[0013] As a preferred embodiment, sealing grooves are provided on the mounting surfaces where the motor cavity housing, the motor cavity cover, the wiring cavity cover and the output shaft cover contact each other, and the wiring cavity sealing ring, the motor cavity sealing ring and the motor output sealing ring are installed respectively to make the explosion-proof cavity sealed.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are: simple structure, reduced weight of the motor mining explosion-proof cavity, reduced volume of the motor mining explosion-proof cavity, and guaranteed safety and stability of the servo motor in normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The utility model is a schematic diagram of the overall structure of an explosion-proof cavity for a motor used in mining.

[0017] Figure 2 This is an AA cross-sectional view of an explosion-proof cavity for a motor for mining according to the utility model.

[0018] Figure 3 This is a BB cross-sectional view of an explosion-proof cavity for a motor for mining according to the utility model.

[0019] In the figure, 1. motor cavity housing; 2. motor; 3. motor connecting shaft; 4. output shaft cover; 5. oil seal; 6. deep groove ball bearing; 7. motor cavity cover; 8. wiring cavity cover; 9. first flameproof through-wall terminal; 10. second flameproof through-wall terminal; 11. hole stopper; 12. shaft stopper; 13. first cable introduction device; 14. second cable introduction device; 15. terminal block; 16. wiring cavity sealing ring; 17. motor cavity sealing ring; 18. motor output sealing ring; 19. hexagon socket head screw; 20. hexagon socket head screw; 21-motor cavity; 22-wiring cavity. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 2 The utility model provides a technical solution: a motor 2 mining explosion-proof cavity, comprising: a motor cavity housing 1 and a wiring cavity cover plate 8, a motor cavity cover plate 7 is arranged on the top of the motor cavity housing 1, and the motor 2 is fixed inside the motor cavity housing 1 by hexagon socket screws;

[0022] An output shaft cover plate 4 is arranged at the bottom of the motor cavity housing 1, and an output shaft is provided at the bottom of the motor 2. The output shaft of the motor 2 is connected to the motor connecting shaft 3, and the motor connecting shaft 3 is connected to the output shaft cover plate 4 through a deep groove ball bearing 6;

[0023] The wiring cavity cover plate 8 is fixed to the motor cavity housing 1 by means of hexagon socket screws to form a fourth flameproof joint surface, and the wiring row 15 is fixed inside the wiring cavity 22 by means of hexagon socket screws.

[0024] The motor cavity housing 1 has a motor cavity 21 inside, and the wiring cavity cover 8 has a wiring cavity 22 inside. The motor cavity 21 and the wiring cavity 22 together form a flameproof cavity.

[0025] The motor cavity cover plate 7 is fixed to the top of the motor cavity housing 1 by means of hexagon socket screws, and a third flameproof joint surface is formed between the motor cavity cover plate 7 and the motor cavity housing 1 .

[0026] The motor connecting shaft 3 and the deep groove ball bearing 6 are fixed by a shaft stopper 12 and a hole stopper 11. An oil seal 16 is also arranged between the motor connecting shaft 3 and the deep groove ball bearing 6. After one end of the motor connecting shaft 3 is inserted into the output shaft of the motor 2, the output shaft cover 4 is fixed to the outside of the motor cavity housing 1 by a hexagon socket screw. The motor cavity housing 1 and the output shaft cover 4 form a first explosion-proof joint surface, and the output shaft cover 4 and the motor connecting shaft 3 form a second explosion-proof joint surface.

[0027] The connecting section of the first cable lead-in device 13 and the second cable lead-in device 14 is welded to the motor cavity housing 1 , and the plug is fixed in the connecting section of the first cable lead-in device 13 and the second cable lead-in device 14 by means of threads.

[0028] The first flameproof wall terminal 9 and the second flameproof wall terminal 10 are fixed between the motor cavity 21 and the wiring cavity 22 by means of threads and nuts.

[0029] The mounting surfaces where the motor cavity housing 1, the motor cavity cover 7, the wiring cavity cover 8 and the output shaft cover 4 contact each other are provided with sealing grooves, and the wiring cavity sealing ring 16, the motor cavity sealing ring 17 and the motor output sealing ring 18 are respectively installed to make the flameproof cavity sealed.

[0030] As an embodiment of the present utility model, Figure 1 , Figure 2 , Figure 3 It can be seen that the entire explosion-proof chamber consists of two parts, namely the motor chamber 21 and the wiring chamber 22.

[0031] Motor cavity 21:

[0032] like Figure 2 and Figure 3 As shown, the motor 2 is fixed inside the motor cavity housing 1 by means of hexagon socket screws; the output shaft cover plate 4 is loaded with the deep groove ball bearing 6 and the motor connecting shaft 3, and fixed by means of the shaft stop 12 and the hole stop 11, and finally the oil seal 5 is loaded; one end of the motor connecting shaft 3 is inserted into the output shaft of the motor 2, and the output shaft cover plate 4 is fixed to the outside of the motor cavity housing 1 by means of the hexagon socket screws 19; the motor cavity housing 1 and the output shaft cover plate 4 form a flameproof joint surface 1, and the output shaft cover plate 4 and the motor connecting shaft 3 form a flameproof joint surface 2. The motor cavity cover plate 7 is fixed to the motor cavity housing 1 by means of the hexagon socket screws to form a flameproof joint surface 3.

[0033] Wiring cavity 22:

[0034] like Figure 1 , Figure 2 and Figure 3 As shown, the wiring cavity cover plate 8 is fixed to the motor cavity housing 1 by means of hexagon socket screws to form a flameproof joint surface 4. The wiring row 15 is fixed inside the wiring cavity 22 by means of hexagon socket screws.

[0035] The first cable lead-in device 13 and the second cable lead-in device 14 are respectively an A0 ordinary cable lead-in device 13 and an A1 ordinary cable lead-in device 14. The connecting joints of the first cable lead-in device 13 and the second cable lead-in device 14 are welded on the motor cavity housing 1, and a complete set of ordinary plugs are fixed in the connecting joints by threads.

[0036] like Figure 1 , Figure 2 and Figure 3 As shown, the first flameproof through-wall terminal 9 and the second flameproof through-wall terminal 10 are respectively M33 flameproof through-wall terminal 9 and M22 flameproof through-wall terminal 10, and the first flameproof through-wall terminal 9 and the second flameproof through-wall terminal 10 are fixed between the motor cavity 21 and the wiring cavity 22 by means of threads and nuts. The mounting surfaces where the motor cavity housing 1, the motor cavity cover plate 7, the wiring cavity cover plate 8 and the output shaft cover plate 4 contact each other are provided with sealing grooves, and the wiring cavity sealing ring 16, the motor cavity sealing ring 17 and the motor output sealing ring 18 are respectively installed to make the flameproof cavity sealed.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof chamber for a motor for mining, comprising: The motor cavity housing and the wiring cavity cover plate are characterized in that a motor cavity cover plate is arranged on the top of the motor cavity housing, and the motor is fixed inside the motor cavity housing by hexagon socket screws; An output shaft cover is arranged at the bottom of the motor cavity housing, and an output shaft is provided at the bottom of the motor, the output shaft of the motor is connected to the motor connecting shaft, and the motor connecting shaft is connected to the output shaft cover through a deep groove ball bearing; The wiring cavity cover is fixed to the motor cavity housing by means of hexagon socket screws to form a fourth flameproof joint surface, and the wiring row is fixed inside the wiring cavity by means of hexagon socket screws.

2. The explosion-proof chamber for motor used in mining as claimed in claim 1, characterized in that: The motor cavity housing has a motor cavity inside, the wiring cavity cover has a wiring cavity inside, and the motor cavity and the wiring cavity together form an explosion-proof cavity.

3. The explosion-proof chamber for motor used in mining as claimed in claim 1, characterized in that: The motor cavity cover plate is fixed to the top of the motor cavity housing by means of hexagon socket screws, and a third flameproof joint surface is formed between the motor cavity cover plate and the motor cavity housing.

4. The explosion-proof chamber for motor used in mining as claimed in claim 3, characterized in that: The motor connecting shaft and the deep groove ball bearing are fixed by shaft stops and hole stops. An oil seal is also arranged between the motor connecting shaft and the deep groove ball bearing. After one end of the motor connecting shaft is inserted into the output shaft of the motor, the output shaft cover is fixed to the outside of the motor cavity housing by hexagon socket screws. The motor cavity housing and the output shaft cover form a first explosion-proof joint surface, and the output shaft cover and the motor connecting shaft form a second explosion-proof joint surface.

5. The explosion-proof chamber for motor used in mining as claimed in claim 4, characterized in that: The connecting joint of the first cable lead-in device and the second cable lead-in device is welded on the motor cavity housing, and the plug is fixed in the connecting joint of the first cable lead-in device and the second cable lead-in device by means of threads.

6. The explosion-proof chamber for motor used in mining as claimed in claim 2, characterized in that: The first flameproof through-wall terminal and the second flameproof through-wall terminal are fixed between the motor cavity and the wiring cavity through threads and nuts.

7. The explosion-proof chamber for motor used in mining as claimed in claim 6, characterized in that: The mounting surfaces where the motor cavity shell, the motor cavity cover, the wiring cavity cover and the output shaft cover contact each other are provided with sealing grooves, and the wiring cavity sealing ring, the motor cavity sealing ring and the motor output sealing ring are respectively installed to make the explosion-proof cavity sealed.

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