CN88202634U - Explosion-proof electric machine for a liquid pump - Google Patents
Explosion-proof electric machine for a liquid pump Download PDFInfo
- Publication number
- CN88202634U CN88202634U CN 88202634 CN88202634U CN88202634U CN 88202634 U CN88202634 U CN 88202634U CN 88202634 CN88202634 CN 88202634 CN 88202634 U CN88202634 U CN 88202634U CN 88202634 U CN88202634 U CN 88202634U
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- CN
- China
- Prior art keywords
- explosion
- proof
- casing
- brush
- liquid pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a single-phase series excitation explosion-proof electric machine for a liquid pump, comprising a casing, a stator, a rotor, an electric brush, a wiring part, a switch box, etc., and in addition, explosion-proof pieces such as an electric brush outer cover, a switch box cover, an explosion-proof ring, a junction block, etc., are additionally arranged. Explosion-proof joining faces are arranged on the correlative places of the explosion-proof pieces. The adoption of the explosion-proof pieces and the explosion-proof joining faces can prevent the explosion of the explosive gas mixture of the inner part of the casing, which is caused by the sparks or electron charge when the electric machine operates, from transmitting to the outer part of the casing, and therefore, the liquid pump driven the electric machine can safely be used to suck apyrous fluid and (or) flammable liquid.
Description
The utility model relates to a kind of drawing liquid electric motor for pump, particularly a kind of drawing liquid pump explosion-proof motor.
The drawing liquid electric motor for pump of prior art is a kind of non-explosion-proof electric machine, and it partly is made up of casing, stator, rotor, brush, wiring part, switch enclosure and fan etc., and wherein switch is a tumbler switch, is positioned at the wiring part.Owing to do not adopt the flame proof design, so can not be with this driven by motor drawing liquid pump suction as flammable liquids such as gasoline, benzene in above-mentioned region of interest.
The purpose of this utility model provides a kind of drawing liquid pump explosion-proof motor, drives drawing liquid pump with it, it not only can be aspirated as non-flammable liquids such as water, machine oil and acid ﹠ alkali liquids, and can aspirate as flammable liquids such as gasoline, benzene.
Its solution is: adopt single phase series motivated motor, the dislocation switch is on casing and use single-phase change over switch instead, at the region of interest increase explosion-proof part of switch enclosure, wiring part, rotor axis of electric two ends and brush etc., and the gap flameproof joint is set.
After adopting this single phase series motivated motor to make the drawing liquid electric motor for pump through the flame proof design, not only can satisfy the mechanical, electrical performance requirement of drawing liquid pump to motor, and can will in casing, separate in the blast and the external world of contingent explosive gas mixture, unlikely outside propagation, so that normally and safely aspirate flammable liquid and non-flammable liquid, with satisfy all need the non-flammable liquids of suction and (or) user's of flammable liquid need.
Accompanying drawing 1a, 1b have described cutaway view of the present utility model.
Accompanying drawing 1a represents to be installed in a flame-proof type single phase series motivated motor on the drawing liquid pump, and it is graded by stator (8), rotor (7), casing (9), brush part, wiring part, switch enclosure and fan portion and forms.Casing (9) is used cast aluminium alloy instead and is made, and its intensity can be born the explosive force of the contingent explosive gas mixture of motor internal.Stator (8) is screwed on casing (9).By the two axial ends of the rotor (7) of bearing supporting, wherein the go out axle head of an end for being connected with drawing liquid pump is equipped with fan (14) on the other end, in the outside of fan (14) fan guard (15) arranged.According to " explosion-proof electric equipment manufacturing inspection rules " requirement (GB3836-83), utilize gap flame proof principle, above-mentioned shaft end-journal and go out between the shaft-cup (6) (seeing Fig. 1 b) design and be processed into flameproof joint (S5), and also be provided with flameproof joint (S4) between that end-journal of dress fan (14) and the casing (9).In brush (13) part, upward be screwed with a brush cover (12) by being threaded in brush tubes (11).For reaching the flame proof effect, increased a closed brush enclosing cover (10) in the top of brush tubes (11) and brush cover (12), and made between itself and the casing (9) and also form a flameproof joint (S1).Explosion separation motor switch of the present utility model adopts the less single-phase change over switch (17) of volume, and is installed in casing (9) upward near on the side position of adorning fan (14).In switch (17) outside, a switch overcoat (16) is housed, and increases a switch enclosure cover (18).Flameproof joint (S3) is processed in design in like manner, between switch enclosure cover (18) and the switch turning handle axle, and between the casing (9).In the wiring part, power line (24) penetrates from clamp nut (23), after intermediate plate (22) is fixing, divide three strands with it, the inlet wire side of three wiring embedding table nuts (28) of using screw (27) to be connected on again to be positioned on the junction block (21), the screw (20) from the outlet side of wiring embedding table nut (28) is connected to electric wire on the screw (19) of switch enclosure again.Vicinity in clamp nut (23) has one by its flame proof circle (25) that compresses.As shown in the figure, form a flameproof joint (S6) between terminal box shell (26) and the flame proof circle (25), and between casing (9) and the junction block (21), and terminal box shell (26) between also be provided with flameproof joint (S2).
Owing to be provided with above-mentioned (S1)～(S6) each flameproof joint and relevant explosion-proof part, the explosion time that makes the spark that when motor rotation, produces or electric charge cause casing implode admixture of gas, can stop inner blast outside casing, to be spread, play the flame proof effect.
Shown in Fig. 1 b, utilizing is threaded can install to explosion separation motor of the present utility model on the connection handwheel (4) of drawing liquid pump, simultaneously, the Motor Shaft end is connected with coupling (3).When motor one starts, just can drive impeller (2) high speed rotating of drawing liquid pump lower end, draw up thereby will be sucked liquid, discharge from connecing mouth (5) through tubular type pump case (1).
Claims (1)
1, a kind of drawing liquid electric motor for pump, particularly a kind of drawing liquid pump is with single-phase series excitation explosion-proof motor, it is by casing, stator, rotor, brush, wiring part and switch enclosure are formed, it is characterized in that: increase a closed brush enclosing cover (10) in the brush tubes (11) of series excited machine brush (13) and the top of brush cover (12), and between itself and casing (9), form a flameproof joint (S1), adopt single-phase change over switch (17), increase a switch enclosure cover (18) in its outside, and make itself and switch turning handle axle, form flameproof joint (S3) between the casing (9), flame proof circle (25) and junction block (21) are installed, and flameproof joint (S6) and (S2) is set respectively, the axle journal at rotor axis of electric two ends with go out shaft-cup (6), also be provided with flameproof joint (S5) and (S4) between the casing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202634 CN88202634U (en) | 1988-03-30 | 1988-03-30 | Explosion-proof electric machine for a liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202634 CN88202634U (en) | 1988-03-30 | 1988-03-30 | Explosion-proof electric machine for a liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88202634U true CN88202634U (en) | 1988-11-09 |
Family
ID=4837605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88202634 Expired - Lifetime CN88202634U (en) | 1988-03-30 | 1988-03-30 | Explosion-proof electric machine for a liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88202634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884484A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | High-power-density superconducting motor with limiting and adjusting structure |
| CN111884482A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | Superconducting motor with limiting and adjusting structure |
| CN111884483A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | High-power-density superconducting motor with limiting structure |
-
1988
- 1988-03-30 CN CN 88202634 patent/CN88202634U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884484A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | High-power-density superconducting motor with limiting and adjusting structure |
| CN111884482A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | Superconducting motor with limiting and adjusting structure |
| CN111884483A (en) * | 2020-07-29 | 2020-11-03 | 东部超导科技（苏州）有限公司 | High-power-density superconducting motor with limiting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |