CN215419830U

CN215419830U - Explosion-proof motor with sealing structure

Info

Publication number: CN215419830U
Application number: CN202121302677.2U
Authority: CN
Inventors: 徐丽婷
Original assignee: Shaanxi Deshili Hydraulic Technology Co ltd
Current assignee: Shaanxi Deshili Hydraulic Technology Co ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2022-01-04
Anticipated expiration: 2031-06-10

Abstract

The utility model belongs to the technical field of motors, and particularly relates to an explosion-proof motor with a sealing structure, aiming at the problems that a motor in the prior art is poor in end cover sealing effect, water vapor and dust easily enter an inner cavity of the motor to cause bearing damage and short circuit of a motor winding, the explosion-proof motor comprises a shell and a cover plate, wherein transverse grooves are formed in two sides of the cover plate, clamping plates are slidably arranged in the two transverse grooves, compression springs are fixedly arranged on the sides, close to each other, of the two clamping plates, one ends, close to each other, of the two compression springs are fixedly connected with the inner wall of one side of the corresponding transverse groove, and clamping grooves are formed in the inner walls of the two sides of the shell. The motor shell is sealed by the tight abutting of the sealing gasket and the retainer ring, so that water vapor and dust are prevented from entering the motor shell to damage a motor component, and the cover plate is convenient to disassemble, so that the interior of the motor shell is maintained.

Description

Explosion-proof motor with sealing structure

Technical Field

The utility model relates to the technical field of motors, in particular to an explosion-proof motor with a sealing structure.

Background

The three-phase asynchronous motor is the most important electrical equipment in an electric traction system, is widely applied to industrial and agricultural production due to simple structure, reliable operation and low price, and is indispensable power equipment for realizing electrification. The three-phase asynchronous motor mainly comprises a motor stator and a motor rotor, wherein the motor stator is fixed on a motor base, the motor rotor is fixedly connected with a motor rotating shaft, and the motor rotating shaft is rotatably supported on the motor base through a motor end cover and a bearing.

In the motor in the prior art, because the end cover sealing effect is poor, water vapor and dust easily enter the inner cavity of the motor to cause bearing damage, short circuit of a motor winding, increase or overheating of copper consumption of the winding, and aggravate aging and even burning of an insulating layer of the winding; particularly, the explosion-proof motor with a sealing structure is particularly serious in the environment with moisture and more dust, so that the explosion-proof motor with the sealing structure is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the sealing effect of an end cover of a motor in the prior art is poor, water vapor and dust easily enter the inner cavity of the motor to cause bearing damage, the winding of the motor is short-circuited, the copper consumption of the winding is increased or overheated, and the aging and even burning of the insulating layer of the winding are aggravated; the explosion-proof motor with the sealing structure has the serious defects especially in the environment with moisture and more dust.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a flameproof motor with a sealing structure comprises a machine shell and a cover plate, wherein both sides of the cover plate are provided with transverse grooves, clamping plates are arranged in the two transverse grooves in a sliding manner, compression springs are fixedly arranged on the mutually close sides of the two clamping plates, the mutually close ends of the two compression springs are fixedly connected with the inner wall of one side of the corresponding transverse groove respectively, clamping grooves are arranged on the inner walls of both sides of the machine shell respectively, the two clamping plates are movably clamped with the corresponding clamping grooves respectively, the bottom of the cover plate is provided with a vertical groove, two connecting plates are arranged in the vertical groove in a sliding manner, the bottoms of the two connecting plates are fixedly provided with the same pressing plate, a sealing gasket is fixedly arranged at the bottom of the pressing plate, a retaining ring is fixedly arranged in the machine shell and is movably connected with the inside of the retaining ring, transverse plates are fixedly arranged on the mutually close sides of the two connecting plates, and two circular grooves are arranged on the inner wall of the top of the vertical groove, all rotate in two circular recesses and install the lead screw, two diaphragms are respectively the screw thread cup joint in the outside of the lead screw that corresponds, and equal fixed mounting has the gear wheel on two lead screws, vertical hole has been seted up at the top of apron, and vertical downthehole rotation installs the vertical axis, and the bottom fixed mounting of vertical axis has the pinion, and the pinion meshes with two gear wheels mutually, and the top fixed mounting of vertical axis has a square plate, and the outside of square plate slides and has cup jointed the framework, the top fixed mounting of apron has two locating plates, the bottom both sides of framework are all seted up flutedly, and two locating plates respectively with the recess activity joint that corresponds, the equal fixedly connected with reset spring in bottom both sides of square plate, reset spring's bottom and the bottom inner wall fixed connection of framework.

Preferably, the top fixed mounting of cardboard has the connecting rod, and the top fixed mounting of connecting rod has the push pedal, is convenient for promote the cardboard and removes.

Preferably, two fixing rods are fixedly mounted on the inner wall of the top of the vertical groove, and the two transverse plates are respectively sleeved on the outer sides of the corresponding fixing rods in a sliding manner.

Preferably, the bottom end of the fixed rod is fixedly provided with a bottom plate, and the two bottom plates are respectively rotatably sleeved on the outer sides of the corresponding screw rods to rotatably position the screw rods.

Preferably, two vertical rods are fixedly mounted on the inner wall of the top of the vertical groove, and the two connecting plates are respectively sleeved on the outer sides of the corresponding vertical rods in a sliding mode to guide the connecting plates.

Preferably, the top both sides of retaining ring equal fixed mounting have the locating lever, the inserting groove has all been seted up to the bottom both sides of apron, two locating levers respectively with the inserting groove swing joint that corresponds, install the location to the apron.

In the utility model, the flame-proof type motor with the sealing structure ensures that two positioning plates are separated from the connection with the corresponding grooves and the reset spring is compressed by pulling the frame body to move upwards, then the frame body is rotated and drives the vertical shaft to synchronously rotate through the matching of the frame body and the square plate, the vertical shaft drives two lead screws to slowly rotate through the meshing of a small gear and two big gears, the two lead screws respectively drive two connecting plates to move downwards through the threaded matching with the corresponding transverse plates, the two connecting plates drive the pressing plate and the sealing gasket to move downwards, the machine shell is sealed through the tight abutting between the sealing gasket and the retainer ring, then the frame body is loosened, the frame body is enabled to move downwards in a resetting way under the action of the reset spring, the two positioning plates are clamped into the corresponding grooves again, the rotation of the frame body is limited, and the sealing stability of the machine shell is ensured, prevent water vapor and dust from entering the shell to damage the motor components;

according to the explosion-proof motor with the sealing structure, the two clamping plates are driven to move towards one side away from each other by pushing the two push plates to move towards one side close to each other, so that the two clamping plates are separated from being connected with the corresponding clamping grooves, the cover plate is separated from being fixed, the cover plate is convenient to disassemble, and the interior of the shell is maintained;

the motor casing is sealed by the tight abutting of the sealing gasket and the retainer ring, so that water vapor and dust are prevented from entering the motor casing to damage a motor component, the cover plate is convenient to disassemble, the interior of the motor casing is maintained, and the reliability is high.

Drawings

FIG. 1 is a schematic structural diagram of an explosion-proof motor with a sealing structure according to the present invention;

FIG. 2 is a schematic structural diagram of a part A of an explosion-proof motor with a sealing structure, which is provided by the utility model;

fig. 3 is a schematic structural diagram of a part B of an explosion-proof motor with a sealing structure according to the present invention.

In the figure: 1. a housing; 2. a cover plate; 3. a vertical axis; 4. a square plate; 5. a frame body; 6. positioning a plate; 7. a vertical groove; 8. a connecting plate; 9. pressing a plate; 10. a gasket; 11. a base plate; 12. a transverse plate; 13. fixing the rod; 14. a bull gear; 15. a pinion gear; 16. a screw rod; 17. clamping a plate; 18. a card slot; 19. a pressure spring; 20. Pushing the plate; 21. positioning a rod; 22. and a retainer ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a flameproof motor with a sealing structure comprises a casing 1 and a cover plate 2, wherein both sides of the cover plate 2 are respectively provided with a transverse groove, clamping plates 17 are respectively and slidably mounted in the two transverse grooves, one side of each clamping plate 17, which is close to each other, is fixedly provided with a pressure spring 19, one end of each pressure spring 19, which is close to each other, is respectively and fixedly connected with the inner wall of one side of the corresponding transverse groove, the inner walls of both sides of the casing 1 are respectively provided with a clamping groove 18, the two clamping plates 17 are respectively and movably clamped with the corresponding clamping grooves 18, the bottom of the cover plate 2 is provided with a vertical groove 7, the vertical groove 7 is slidably provided with two connecting plates 8, the bottoms of the two connecting plates 8 are fixedly provided with a same pressure plate 9, the bottom of the pressure plate 9 is fixedly provided with a sealing gasket 10, a retaining ring 22 is fixedly mounted in the casing 1, the sealing gasket 10 is movably and hermetically connected with the inside of the retaining ring 22, and one side of each connecting plate 8, which is close to each other, is fixedly provided with a transverse plate 12, two circular grooves are arranged on the inner wall of the top of the vertical groove 7, screw rods 16 are rotatably arranged in the two circular grooves, two transverse plates 12 are respectively sleeved on the outer sides of the corresponding screw rods 16 in a threaded manner, and the two screw rods 16 are both fixedly provided with big gears 14, the top of the cover plate 2 is provided with a vertical hole, a vertical shaft 3 is rotatably arranged in the vertical hole, the bottom end of the vertical shaft 3 is fixedly provided with a small gear 15, the small gear 15 is meshed with the two big gears 14, and the top fixed mounting of vertical axis 3 has square slab 4, and the outside of square slab 4 slides and has cup jointed framework 5, and the top fixed mounting of apron 2 has two locating plates 6, and the bottom both sides of framework 5 are all seted up flutedly, and two locating plates 6 respectively with the recess activity joint that corresponds, the equal fixedly connected with reset spring in bottom both sides of square slab 4, reset spring's bottom and framework 5's bottom inner wall fixed connection.

In the utility model, the top of the clamping plate 17 is fixedly provided with a connecting rod, and the top end of the connecting rod is fixedly provided with a push plate 20, so that the clamping plate 17 can be conveniently pushed to move.

In the utility model, two fixing rods 13 are fixedly arranged on the inner wall of the top of the vertical groove 7, and two transverse plates 12 are respectively sleeved on the outer sides of the corresponding fixing rods 13 in a sliding manner.

In the utility model, the bottom ends of the fixed rods 13 are fixedly provided with the bottom plates 11, and the two bottom plates 11 are respectively rotatably sleeved on the outer sides of the corresponding screw rods 16 to rotatably position the screw rods 16.

In the utility model, two vertical rods are fixedly arranged on the inner wall of the top of the vertical groove 7, and two connecting plates 8 are respectively sleeved on the outer sides of the corresponding vertical rods in a sliding manner to guide the connecting plates 8.

In the utility model, positioning rods 21 are fixedly arranged on both sides of the top of the retainer ring 22, insertion grooves are formed in both sides of the bottom of the cover plate 2, and the two positioning rods 21 are respectively movably connected with the corresponding insertion grooves to install and position the cover plate 2.

In the utility model, when in use, the frame body 5 is pulled to move upwards to separate the two positioning plates from the connection with the corresponding grooves and compress the return springs, then the frame body 5 is rotated, the vertical shaft 3 is driven to synchronously rotate through the matching of the frame body 5 and the square plate 4, the vertical shaft 3 drives the two screw rods 16 to rotate slowly through the meshing of the pinion 15 and the two bull gears 14, the two screw rods 16 respectively drive the two connecting plates 8 to move downwards through the thread matching with the corresponding transverse plates 12, the two connecting plates 8 together drive the pressing plate 9 and the sealing gasket 10 to move downwards, the machine shell 1 is sealed through the tight abutting of the sealing gasket 10 and the check ring 22, then the frame body 5 is loosened to enable the frame body 5 to move downwards in a return manner under the action of the return springs, so that the two positioning plates 6 are clamped into the corresponding grooves again to limit the rotation of the frame body 5, thereby guarantee to casing 1's stability of seal, prevent steam, in the dirt got into casing 1, cause the harm to motor element, and can be through promoting two push pedal 20 to the one side motion that is close to each other, in order to drive two cardboard 17 to the one side motion of keeping away from each other, thereby make two cardboard 17 break away from with the draw-in groove 18's that corresponds connection, thereby break away from the fixed to apron 2, in order to dismantle apron 2, thereby maintain the inside of casing 1.

Claims

1. The flameproof motor with the sealing structure comprises a machine shell (1) and a cover plate (2), and is characterized in that transverse grooves are formed in two sides of the cover plate (2), clamping plates (17) are slidably mounted in the two transverse grooves, a pressure spring (19) is fixedly mounted on one side, close to each other, of the two clamping plates (17), one end, close to each other, of the two pressure springs (19) is fixedly connected with the inner wall of one side of the corresponding transverse groove, clamping grooves (18) are formed in the inner walls of two sides of the machine shell (1), the two clamping plates (17) are movably clamped with the corresponding clamping grooves (18), a vertical groove (7) is formed in the bottom of the cover plate (2), two connecting plates (8) are slidably mounted in the vertical groove (7), the same pressing plate (9) is fixedly mounted at the bottoms of the two connecting plates (8), and a sealing gasket (10) is fixedly mounted at the bottoms of the pressing plates (9), the sealing structure is characterized in that a retainer ring (22) is fixedly arranged in the casing (1), a sealing gasket (10) is connected with the inner movable seal of the retainer ring (22), transverse plates (12) are fixedly arranged on one sides, close to each other, of the two connecting plates (8), two circular grooves are formed in the inner wall of the top of each vertical groove (7), screw rods (16) are rotatably arranged in the two circular grooves, the two transverse plates (12) are respectively sleeved on the outer sides of the corresponding screw rods (16) in a threaded manner, large gears (14) are fixedly arranged on the two screw rods (16), vertical holes are formed in the top of the cover plate (2), vertical shafts (3) are rotatably arranged in the vertical holes, small gears (15) are fixedly arranged at the bottom ends of the vertical shafts (3), the small gears (15) are meshed with the two large gears (14), square plates (4) are fixedly arranged at the top ends of the vertical shafts (3), a frame body (5) is slidably sleeved on the outer sides of the square plates (4), the top fixed mounting of apron (2) has two locating plates (6), the bottom both sides of framework (5) are all seted up flutedly, two locating plates (6) respectively with the recess activity joint that corresponds, the equal fixedly connected with reset spring in bottom both sides of square slab (4), reset spring's bottom and the bottom inner wall fixed connection of framework (5).

2. The flameproof motor with the sealing structure according to claim 1, wherein the top of the clamping plate (17) is fixedly provided with a connecting rod, and the top end of the connecting rod is fixedly provided with a push plate (20).

3. The flameproof motor with the sealing structure according to claim 1, wherein two fixing rods (13) are fixedly mounted on the inner wall of the top of the vertical groove (7), and the two transverse plates (12) are respectively sleeved on the outer sides of the corresponding fixing rods (13) in a sliding manner.

4. The flameproof motor with the sealing structure according to claim 3, wherein the bottom end of the fixing rod (13) is fixedly provided with a bottom plate (11), and the two bottom plates (11) are respectively rotatably sleeved on the outer sides of the corresponding screw rods (16).

5. The flameproof motor with the sealing structure according to claim 1, wherein two vertical rods are fixedly mounted on the inner wall of the top of the vertical groove (7), and the two connecting plates (8) are respectively sleeved on the outer sides of the corresponding vertical rods in a sliding manner.

6. The flameproof motor with the sealing structure according to claim 1, wherein the positioning rods (21) are fixedly mounted on both sides of the top of the retainer ring (22), the insertion grooves are formed in both sides of the bottom of the cover plate (2), and the two positioning rods (21) are movably connected with the corresponding insertion grooves respectively.