CN220754493U - Explosion-proof three-phase asynchronous motor - Google Patents
Explosion-proof three-phase asynchronous motor Download PDFInfo
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- CN220754493U CN220754493U CN202322117388.0U CN202322117388U CN220754493U CN 220754493 U CN220754493 U CN 220754493U CN 202322117388 U CN202322117388 U CN 202322117388U CN 220754493 U CN220754493 U CN 220754493U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 239000000428 dust Substances 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims description 25
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 239000002360 explosive Substances 0.000 abstract description 8
- 230000006837 decompression Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an explosion-proof three-phase asynchronous motor, which comprises a mounting seat, wherein a motor is fixedly arranged on the upper surface of the mounting seat, a transmission gear is fixedly connected with the outer surface of an output shaft of the motor, a pressure cylinder is fixedly arranged on the upper surface of one end of the mounting seat, an air inlet pipe is fixedly connected with the upper end side surface of the pressure cylinder, one end of a transmission pipe is fixedly connected with the upper end surface of the pressure cylinder, the other end of the transmission pipe penetrates through a shell of the motor, and a first one-way valve is arranged at the joint of the transmission pipe and the pressure cylinder and the joint of the air inlet pipe and the pressure cylinder. This explosion-proof three-phase asynchronous motor through the mode that sets up self-supply mechanism in the mount pad inside for self-supply mechanism can initiatively draw in external air and filter through the dust removal filter core through external pipeline when outside air supply decompression, in order to guarantee that outside inflammable and explosive gas and dust can not get into the inside of the casing of motor.
Description
Technical Field
The utility model relates to the technical field of explosion-proof motors, in particular to an explosion-proof three-phase asynchronous motor.
Background
The explosion-proof motor is a motor which can be used in flammable and explosive places, does not generate electric sparks during operation, can be divided into an explosion-proof motor, an safety-increasing motor, a positive pressure motor, a spark-free motor, a dust explosion-proof motor and the like according to an explosion-proof principle, wherein the positive pressure type explosion-proof motor adopts a mode of ventilating the inside of a motor shell to keep a certain pressure to prevent external powder or flammable and explosive gas from entering the inside of the motor, such as the explosion-proof motor with the publication number of CN218733575U, and the motor inputs dry air or inert gas into an inner cavity of the motor through a ventilating device to prevent the explosive mixed gas from entering the inner cavity of the motor so as to ensure safe operation of the motor, but once the ventilating device fails or an external air source loses pressure source, the positive pressure cannot be provided for the motor shell, so that the external flammable and explosive gas can infiltrate into the inside of the motor shell, and a certain potential safety hazard exists.
Disclosure of Invention
The utility model aims to provide an explosion-proof three-phase asynchronous motor, which solves the problem that the motor shell provided in the background art cannot prevent inflammable and explosive gas from entering the interior of the motor shell when a ventilation device fails or an external gas source loses pressure.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the explosion-proof three-phase asynchronous motor comprises a mounting seat, wherein a motor is fixedly arranged on the upper surface of the mounting seat, a transmission gear is fixedly connected with the outer surface of an output shaft of the motor, a pressure cylinder is fixedly arranged on the upper surface of one end of the mounting seat, an air inlet pipe is fixedly connected with the upper end side surface of the pressure cylinder, one end of a transmission pipe is fixedly connected with the upper end surface of the pressure cylinder, the other end of the transmission pipe penetrates through a shell of the motor, and a first one-way valve is arranged at the joint of the transmission pipe and the pressure cylinder and the joint of the air inlet pipe and the pressure cylinder;
the self-adjusting switching mechanism is arranged on the upper surface of the mounting seat and is used for switching the gas source of the transmission pipe after the gas supply of the gas inlet pipe is stopped;
the self-adjusting switching mechanism includes: the piston block is arranged in the pressure cylinder, the piston cylinder is fixedly arranged on the upper surface of the mounting seat, the two ends of the piston cylinder respectively penetrate through the piston cylinder and the pressure tube, the piston frame penetrates through one end of the pressure tube, and the displacement gear arranged at one end of the piston frame is rotated;
the self-air supply mechanism is arranged in the mounting seat and used for stably injecting air into the transmission pipe when the air inlet pipe stops supplying air;
the self-air supply mechanism comprises: the device comprises a mounting seat, a bearing gear, a reversing gear, a central gear, a mounting rod, a contact wheel, a piston slide rod, an air bag, an air outlet pipe, a transmission pipe, a dust removing filter element, a second check valve and an external pipeline, wherein the bearing gear is rotatably mounted inside the mounting seat, the reversing gear is fixedly arranged at one end of a rotary shaft of the bearing gear, the central gear is rotatably mounted on the inner bottom surface of the mounting seat, the mounting rod is fixedly arranged on the outer surface of the upper end of the rotary shaft of the central gear, the contact wheel is rotatably mounted at one end of the mounting rod, the piston slide rod is slidably mounted inside the mounting seat, the pressure cavity is formed in the side surface of the mounting seat, the air bag is connected with the air bag, the air outlet pipe is connected with the air bag, the upper end of the air outlet pipe penetrates through the outer surface of the transmission pipe, the dust removing filter element is embedded in the side surface of the mounting seat, the mounting cover is fixedly mounted on the side surface of the mounting seat, the second check valve is fixedly arranged at the lower end of a cavity where the dust removing filter element is located, the pressure cavity is connected with the air bag, and the second check valve is fixedly connected with the air outlet pipe at the lower end of the cavity where the dust removing filter element is located.
Preferably, the piston block is in sliding friction connection with the pressure cylinder, the piston block is located above the pressure pipe, one end of the piston frame located inside the piston cylinder is in sliding friction connection with the piston cylinder, and a spring is connected between the piston frame and the piston cylinder.
Preferably, the receiving gear is meshed with the displacement gear, the displacement gear and the transmission gear are in dislocation design, and the displacement gear is positioned on one side of the transmission gear far away from the motor.
Preferably, the reversing gear is in meshed connection with the central gear, and the reversing gear and the receiving gear are coaxially designed.
Preferably, one end of the piston slide rod penetrates through the inner side surface of the pressure cavity, the piston slide rod is in sliding friction connection with the pressure cavity, a spring is connected between the piston slide rod and the pressure cavity, and one end of the piston slide rod, which is located outside the pressure cavity, is in an arc-shaped design.
Preferably, the lower end of the inner cavity of the installation seat where the dust removing filter element is located penetrates through the lower surface of the installation seat, and the upper end of the inner cavity of the installation seat where the dust removing filter element is located is communicated with the pressure cavity.
Compared with the prior art, the utility model has the beneficial effects that: the explosion-proof three-phase asynchronous motor comprises:
1. by arranging the self-air supply mechanism in the mounting seat, the self-air supply mechanism can actively suck external air into the mounting seat through an external pipeline and filter the external air through a dust removal filter element when an external air source loses pressure, so that the external flammable and explosive gas and dust can not enter the shell of the motor;
2. the self-adjusting switching mechanism is used for automatically switching the gas source of the transmission pipe when the external gas source is out of pressure, so that the internal positive pressure of the motor can be kept all the time, and flammable and explosive gas and dust cannot enter the shell of the motor because the external gas source is out of pressure and the pressure is not timely supplemented;
3. the air bag can keep the continuous pressure for the motor shell through the shrinkage pressure generated by the deformation of the material of the air bag in a mode of expanding after the air bag is flushed with the air, and the air bag is continuously supplemented with the air through the reciprocating sliding of the piston sliding rod, so that the stable supply of the air pressure is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall front view of the present utility model;
FIG. 2 is a schematic diagram of the overall cross-sectional structure of the present utility model;
FIG. 3 is a schematic overall cross-sectional view of the present utility model;
FIG. 4 is a schematic diagram showing a cross-sectional structure of a piston rod and a pressure chamber of the present utility model.
In the figure: 1. a mounting base; 2. a motor; 3. a transmission gear; 4. a pressure cylinder; 5. an air inlet pipe; 6. a transmission tube; 7. a first one-way valve;
self-adjusting switching mechanism: 801. a piston block; 802. a piston cylinder; 803. a pressure pipe; 804. a piston holder; 805. a displacement gear;
self-air supply mechanism: 901. a receiving gear; 902. a reversing gear; 903. a sun gear; 904. a mounting rod; 905. a contact wheel; 906. a piston slide bar; 907. a pressure chamber; 908. an air bag; 909. an air outlet pipe; 910. a dust removal filter element; 911. a mounting cover; 912. a second one-way valve; 913. and (5) connecting a pipeline externally.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The embodiment of the application provides an explosion-proof three-phase asynchronous motor, this explosion-proof three-phase asynchronous motor guarantees in time to switch the air feed source of transmission pipe 6 and guarantees the inside malleation state of motor 2 casing when external air supply decompression that intake pipe 5 is connected through self-adjusting shifter and self-air feed mechanism.
The explosion-proof three-phase asynchronous motor will be described in detail below. The following description of the embodiments is not intended to limit the preferred embodiments.
The present application is described in detail below with reference to the attached drawings and detailed description.
Referring to fig. 1 to 4, an explosion-proof three-phase asynchronous motor provided in this embodiment includes: the motor 2 is fixedly mounted on the upper surface of the mounting seat 1, the transmission gear 3 is fixedly connected to the outer surface of an output shaft of the motor 2, the pressure cylinder 4 is fixedly arranged on the upper surface of one end of the mounting seat 1, the air inlet pipe 5 is fixedly connected to the upper end side surface of the pressure cylinder 4, one end of the transmission pipe 6 is fixedly connected to the upper end surface of the pressure cylinder 4, the other end of the transmission pipe 6 penetrates through the shell of the motor 2, and a first one-way valve 7 is arranged at the joint of the transmission pipe 6 and the pressure cylinder 4 and the joint of the air inlet pipe 5 and the pressure cylinder 4;
the explosion-proof three-phase asynchronous motor mainly comprises a mounting seat 1, a motor 2, a transmission gear 3, a pressure cylinder 4, an air inlet pipe 5, a transmission pipe 6, a first one-way valve 7, a self-adjusting switching mechanism and an air self-supplying mechanism, wherein the explosion-proof three-phase asynchronous motor provided by the scheme drives a displacement gear 805 to be meshed with the transmission gear 3 when the air inlet pipe 5 loses pressure through the self-adjusting switching mechanism, the purpose that external air is pumped in through an external pipeline 913 and injected into the shell of the motor 2 through the transmission pipe 6 by the operation of the rotation driving air self-supplying mechanism of an output shaft of the motor 2 is achieved, and when the air inlet pipe 5 supplies air normally, air is injected into the shell of the motor 2 through the transmission pipe 6 after pushing a piston block 801 to slide downwards through the air inlet pipe 5, and is discharged through a shell mounting gap of the motor 2, so that the purpose of positive pressure explosion prevention is achieved.
In some embodiments, the self-adjusting switching mechanism includes: a piston block 801 provided in the pressure cylinder 4, a piston cylinder 802 fixedly provided on the upper surface of the mounting base 1, a pressure tube 803 having both ends penetrating the piston cylinder 802 and the outer surface of the pressure cylinder 4, respectively, a piston frame 804 penetrating one end of the pressure tube 803, and a displacement gear 805 rotatably mounted on one end of the piston frame 804. When the air inlet pipe 5 loses air supply pressure, the piston block 801 loses downward pressure, the piston frame 804 and the displacement gear 805 are pulled by the piston cylinder 802 through the spring to slide, the displacement gear 805 is meshed with the transmission gear 3 through sliding, when the air inlet pipe 5 recovers air supply pressure, the pressure inside the pressure cylinder 4 is increased to push the piston block 801 to slide downwards, and the piston block 801 applies pressure to the interior of the piston cylinder 802 through the pressure pipe 803, so that the piston frame 804 can be pushed to drive the displacement gear 805 to be out of meshing with the transmission gear 3.
In some embodiments, the self-powered mechanism comprises: a receiving gear 901 rotatably installed inside the installation base 1, a reversing gear 902 fixedly arranged at one end of a rotating shaft of the receiving gear 901, a sun gear 903 rotatably installed at the inner bottom surface of the installation base 1, an installation rod 904 fixedly arranged at the outer surface of the rotating shaft of the sun gear 903, a contact wheel 905 rotatably installed at one end of the installation rod 904, a piston slide rod 906 slidably installed inside the installation base 1, a pressure cavity 907 formed inside the side surface of the installation base 1, an air bag 908 connected at one end of the pressure cavity 907, an air outlet pipe 909 with one end connected with the air bag 908, and the upper end of the air outlet pipe 909 penetrating the outer surface of the transmission pipe 6, a dust removing filter element 910 embedded inside the side surface of the installation base 1, an installation cover 911 fixedly installed on the side surface of the installation base 1 by bolts, a second one-way valve 912 fixedly arranged at the lower end of the cavity where the dust removing filter element 910 is positioned, at the connection part of the pressure cavity 907 and the air bag 908 and at the connection part of the air outlet pipe 909 and the air bag 908, an external pipeline 913 fixedly connected at the lower end of the cavity where the dust removing filter element 910 is positioned, after the displacement gear 805 is meshed with the displacement gear 805 to be driven to rotate, the displacement gear 805 drives the sun gear 903 to rotate through the receiving gear 901 and the reversing gear 902, the sun gear 903 drives the contact wheel 905 to rotate through the mounting rod 904 and presses the piston slide bar 906, the piston slide bar 906 slides into the air bag 908, then after the contact wheel 905 rotates away from the piston slide bar 906, the piston slide bar 906 slides and resets under the support of a spring, external air is pumped into the cavity where the dust removing filter element 910 and is filtered through the dust removing filter element 910 and then is sucked into the pressure cavity 907, in-process second check valve 912 plays the effect of preventing air in gasbag 908 by reverse suction and prevent air in pressure chamber 907 from being discharged through external pipeline 913, gasbag 908 pours into transmission pipe 6 with the air through outlet duct 909, and first check valve 7 between transmission pipe 6 and the pressure section of thick bamboo 4 plays the effect of preventing air entering pressure section of thick bamboo 4 inside, and the casing that the air pours into motor 2 through transmission pipe 6 reaches the purpose of guaranteeing motor 2 casing inside malleation this moment, changes mount pad 1 internally mounted's dust removal filter core 910 through dismantling mounting lid 911.
In some embodiments, piston block 801 is in sliding friction connection with pressure tube 4, and piston block 801 is located above pressure tube 803, one end of piston frame 804 located inside piston tube 802 is in sliding friction connection with piston tube 802, and a spring is connected between piston frame 804 and piston tube 802, so that when pressure inside piston tube 802 is lost, piston frame 804 can be pulled by the spring to slide so that displacement gear 805 meshes with drive gear 3.
In some embodiments, the receiving gear 901 is engaged with the displacement gear 805, the displacement gear 805 and the transmission gear 3 are in a dislocation design, and the displacement gear 805 is located on a side of the transmission gear 3 away from the motor 2, so that the transmission gear 3 can drive the receiving gear 901 to slide when engaged with the sliding displacement gear 805.
In some embodiments, the reversing gear 902 is in meshed connection with the sun gear 903, and the reversing gear 902 and the receiving gear 901 are of coaxial design such that the receiving gear 901 is capable of rotating the sun gear 903 through the reversing gear 902.
In some embodiments, one end of the piston rod 906 extends through the inside surface of the pressure chamber 907, the piston rod 906 is in sliding friction connection with the pressure chamber 907, and a spring is connected between the piston rod 906 and the pressure chamber 907, and one end of the piston rod 906 located outside the pressure chamber 907 is of an arc-shaped design, so that the piston rod 906 can return under the support of the spring when no force is applied.
In some embodiments, the lower end of the inner cavity of the installation seat 1 where the dust removing filter element 910 is located penetrates through the lower surface of the installation seat 1, and the upper end of the inner cavity of the installation seat 1 where the dust removing filter element 910 is located is communicated with the pressure cavity 907, so that the dust removing filter element 910 can perform dust filtration on air inhaled in the external connection pipe 913.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An explosion-proof three-phase asynchronous motor, comprising: mount pad (1), its characterized in that:
the mounting seat (1), the upper surface of mounting seat (1) is fixedly provided with motor (2), and the output shaft surface fixedly connected with drive gear (3) of motor (2), the one end upper surface fixedly provided with pressure cylinder (4) of mounting seat (1), and the upper end side surface fixedly connected with intake pipe (5) of pressure cylinder (4), the one end of transmission pipe (6) is fixedly connected with to the up end of pressure cylinder (4), and the casing of motor (2) is run through to the other end of transmission pipe (6), the junction of transmission pipe (6) and pressure cylinder (4) and the junction of intake pipe (5) and pressure cylinder (4) all are provided with first check valve (7);
the self-adjusting switching mechanism is arranged on the upper surface of the mounting seat (1) and is used for switching the gas source of the transmission pipe (6) after the gas inlet pipe (5) stops supplying gas;
the self-adjusting switching mechanism includes: a piston block (801) arranged in the pressure cylinder (4), a piston cylinder (802) fixedly arranged on the upper surface of the mounting seat (1), a pressure pipe (803) with two ends penetrating through the outer surfaces of the piston cylinder (802) and the pressure cylinder (4) respectively, a piston frame (804) penetrating through one end of the pressure pipe (803), and a displacement gear (805) rotatably arranged at one end of the piston frame (804);
the self-air supply mechanism is arranged in the mounting seat (1) and is used for stably injecting air into the transmission pipe (6) when the air inlet pipe (5) stops supplying air;
the self-air supply mechanism comprises: the dust removal filter element (910) is fixedly arranged on the inner bottom surface of the installation seat (1) through bolts, the installation cover (911) is fixedly arranged on the side surface of the installation seat (1), the contact wheel (905) is fixedly arranged on the end of the installation rod (904), the piston slide rod (906) is slidably arranged inside the installation seat (1), the pressure cavity (907) is formed in the side surface of the installation seat (1), the air bag (908) is connected to one end of the pressure cavity (907), the air outlet pipe (909) is connected to one end of the air bag (908), the upper end of the air outlet pipe (909) penetrates through the outer surface of the transmission pipe (6), the dust removal filter element (910) is embedded in the side surface of the installation seat (1), and the second valve (912) is fixedly arranged on the lower end of the cavity where the filter element (910) is located, the connection position of the pressure cavity (907) and the air outlet pipe (908) is connected to the second air bag (912) and is connected to the air bag (913) through the bolts.
2. An explosion-proof three-phase asynchronous motor according to claim 1, wherein: the piston block (801) is in sliding friction connection with the pressure cylinder (4), the piston block (801) is located above the pressure tube (803), one end of the piston frame (804) located inside the piston cylinder (802) is in sliding friction connection with the piston cylinder (802), and a spring is connected between the piston frame (804) and the piston cylinder (802).
3. An explosion-proof three-phase asynchronous motor according to claim 1, wherein: the bearing gear (901) is in meshed connection with the displacement gear (805), the displacement gear (805) and the transmission gear (3) are in dislocation design, and the displacement gear (805) is located at one side of the transmission gear (3) far away from the motor (2).
4. An explosion-proof three-phase asynchronous motor according to claim 1, wherein: the reversing gear (902) is in meshed connection with the sun gear (903), and the reversing gear (902) and the receiving gear (901) are of coaxial design.
5. An explosion-proof three-phase asynchronous motor according to claim 1, wherein: one end of the piston slide rod (906) penetrates through the inner side surface of the pressure cavity (907), the piston slide rod (906) is in sliding friction connection with the pressure cavity (907), a spring is connected between the piston slide rod (906) and the pressure cavity (907), and one end of the piston slide rod (906) located outside the pressure cavity (907) is of an arc-shaped design.
6. An explosion-proof three-phase asynchronous motor according to claim 1, wherein: the lower end of the inner cavity of the installation seat (1) where the dust removing filter element (910) is located penetrates through the lower surface of the installation seat (1), and the upper end of the inner cavity of the installation seat (1) where the dust removing filter element (910) is located is communicated with the pressure cavity (907).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117388.0U CN220754493U (en) | 2023-08-08 | 2023-08-08 | Explosion-proof three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117388.0U CN220754493U (en) | 2023-08-08 | 2023-08-08 | Explosion-proof three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754493U true CN220754493U (en) | 2024-04-09 |
Family
ID=90550572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322117388.0U Active CN220754493U (en) | 2023-08-08 | 2023-08-08 | Explosion-proof three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754493U (en) |
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2023
- 2023-08-08 CN CN202322117388.0U patent/CN220754493U/en active Active
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