CN111416466B - Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device - Google Patents
Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device Download PDFInfo
- Publication number
- CN111416466B CN111416466B CN202010224257.0A CN202010224257A CN111416466B CN 111416466 B CN111416466 B CN 111416466B CN 202010224257 A CN202010224257 A CN 202010224257A CN 111416466 B CN111416466 B CN 111416466B
- Authority
- CN
- China
- Prior art keywords
- wiring
- bolt
- insulating
- insulating sleeve
- base
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, which comprises a base, a stator winding, a wiring bolt and an insulating sleeve, wherein the base is provided with a plurality of permanent magnet synchronous variable frequency traction motors; the stator winding is arranged in the cylinder wall of the base and is arranged at a preset distance from one opening of the base; a first through hole penetrating through the cylinder wall is formed in the preset distance, the insulating sleeve is fixed outside the cylinder wall of the machine base through the first through hole, and the bottom end of the insulating sleeve extends into the cylinder wall; the wiring bolt penetrates and is fixed in the insulating sleeve, and the upper end and the lower end of the wiring bolt are respectively exposed out of the top end and the bottom end of the insulating sleeve. The invention solves the problems that the space of the motor junction box is compressed, a terminal sleeve and a special stop gasket cannot be arranged, and the electrical clearance and creepage distance of the terminal cannot meet the standard requirements, thereby solving the problem that the mine explosion-proof permanent magnet synchronous variable frequency traction motor in the locomotive of the improved coal mine transport locomotive cannot be designed, simplifying the device and reducing the cost.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device arranged in the locomotive of an improved coal mining transport locomotive.
Background
The mining explosion-proof permanent magnet synchronous variable frequency traction motor is a traction motor used in the locomotive of a transport locomotive for coal mines and provides traction power for an electric transport locomotive. The mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device is the only and important device for realizing the effective connection of an internal circuit and an external circuit of a motor, and the device can effectively input power grid or power supply current into the motor, thereby realizing the driving function (converting electric energy into mechanical energy) of the motor, wherein the driving function is the most basic function of the motor. The wiring device in the prior art is formed by integrally molding a brass threaded sleeve and SMC (sheet molding compound) molding compound (or other insulating materials) to form a cylindrical or conical sleeve cylindrical structural member with a cylindrical hole in the center, which is also called a terminal sleeve. The wiring bolt (brass) passes through the inner hole of the terminal sleeve, and then the nut (brass), the bow-shaped gasket, the washer and the like are installed, of course, the wiring bolt can be firstly installed in the terminal sleeve, and can also be installed after the terminal sleeve is installed on the wiring board, the power cable is connected to the upper end of the terminal, and the stator winding lead (cable) is connected to the lower end of the terminal from the inside of the base, thereby ensuring that the power cable can be conveniently connected with the motor and supplies power. The motor wiring device in the prior art mainly has the following defects when being installed on the head of an improved coal mine transport locomotive:
firstly, the terminal in the prior art is entirely positioned in the terminal box, so that the terminal box occupies a large space, and when the motor is installed in the improved mining transport locomotive head, the space of the terminal box is limited by the space of the whole machine and is compressed, so that the space required by 3 terminal sleeves cannot be met; and three-hole connected (integrated) special stop gaskets have no placing space.
Secondly, the arrangement mode of the terminals in the prior art and the adopted metal stop gaskets can not lead the electrical clearance and creepage distance of the terminals to meet the standard requirements.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, which solves the problems that the space of a motor wiring box is compressed, a terminal sleeve and a special stop gasket cannot be arranged, and the electrical clearance and creepage distance of a terminal cannot meet the standard requirements through structural improvement, thereby solving the problem that the mining explosion-proof permanent magnet synchronous variable frequency traction motor in the locomotive of a modified coal mining transport locomotive cannot be designed, simplifying the device and reducing the cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device comprises a base, a stator winding, a wiring bolt and an insulating sleeve; the motor base is cylindrical and is provided with openings with two through sides, and the stator winding is arranged in the cylinder wall of the motor base and is provided with a preset distance with one opening of the motor base; a first through hole penetrating through the cylinder wall is formed in the preset distance, the insulating sleeve is fixed outside the cylinder wall of the machine base through the first through hole, and the bottom end of the insulating sleeve extends into the cylinder wall; the wiring bolt penetrates and is fixed in the insulating sleeve, the upper end and the lower end of the wiring bolt are respectively exposed out of the top end and the bottom end of the insulating sleeve, the upper end of the wiring bolt is connected with a cable conductor and an external power supply, and the lower end of the wiring bolt is connected with the stator winding through a stator winding lead.
The upper end and the lower end of the wiring bolt are fixed to the top end and the bottom end of the insulating sleeve through double nuts respectively, so that the wiring bolt and the insulating sleeve are fixed to each other in the axis direction of the wiring bolt.
And a flat washer and a spring washer are also arranged between the double nuts at the upper end and the lower end of the wiring bolt and the top end and the bottom end of the insulating sleeve which are correspondingly matched.
The terminal bolt is equipped with the cross-section and is the first section of preventing changeing of polygon shape, be equipped with in the corresponding cooperation department of the trepanning of insulating cover with the section is prevented changeing by the first second of preventing changeing the section adaptation of terminal bolt, works as the terminal bolt penetrates and fixes when in the insulating cover, the first section of preventing changeing of terminal bolt with the section cooperation is prevented changeing by the second of insulating cover, in order to prevent the terminal bolt for insulating cover is followed terminal bolt's circumferential direction.
And at least one pair of first steps which are matched with each other is arranged at the matching position of the wiring bolt and the sleeve hole of the insulating sleeve.
And a second step with a downward step surface is arranged in the insulating sleeve, the second step of the insulating sleeve is abutted against the hole edge of the first through hole outside the cylinder wall of the base, and the second step of the insulating sleeve is fixed on the base by utilizing double nuts at the upper end and the lower end of the wiring bolt.
At least one bolt is further installed between the second step in the insulating sleeve and the outer surface of the cylinder wall of the machine base, and when the insulating sleeve is fixed to the first through hole of the machine base, the bolt is inserted between the insulating sleeve and the machine base, so that the insulating sleeve cannot rotate in the circumferential direction along the machine base.
Furthermore, the device also comprises an insulating wiring board, wherein the insulating wiring board is clamped between double nuts at the lower end of the wiring bolt and the hole edge of the first through hole in the cylinder wall of the base and the bottom end of the wiring bolt.
The wiring bolts and the insulating sleeves are respectively correspondingly matched three, two of the three insulating sleeves are short insulating sleeves, the other insulating sleeve is a long insulating sleeve, two of the three wiring bolts are short wiring bolts, the other wiring bolt is a long wiring bolt, the long wiring bolt is matched with the corresponding long insulating sleeve, and the short wiring bolt is matched with the corresponding short insulating sleeve; the first through holes of the engine base are three and are arranged in a row along the circumferential direction of the engine base, the long insulating sleeve and the long wiring bolt are arranged at one first through hole in the middle of the three first through holes, and form height difference with the short insulating sleeves and the short wiring bolts at two sides.
The insulating wiring board covers the three first through holes of the base, and second through holes are respectively arranged at positions corresponding to the first through holes; in the insulating wiring board, a sinking groove is further formed in the position of the second through hole in one surface facing the inner surface of the cylinder wall of the base, one surface of the insulating wiring board facing the inner surface of the cylinder wall of the base is attached to the inner surface of the cylinder wall of the base, the bottom ends of the three insulating sleeves are respectively abutted to the three corresponding sinking grooves, the lower ends of the three wiring bolts penetrate through the corresponding second through holes of the insulating wiring board, and the lower ends of the three wiring bolts are respectively locked to one surface, facing away from the inner surface of the cylinder wall of the base, of the insulating wiring board through the double nuts and matched with the flat washer and the spring washer.
Compared with the prior art, the invention has the beneficial effects that:
1. the stator winding is arranged in the cylinder wall of the machine base, and a preset distance is arranged between the stator winding and one opening of the machine base; a first through hole penetrating through the cylinder wall is formed in the preset distance, the insulating sleeve is fixed outside the cylinder wall of the machine base through the first through hole, and the bottom end of the insulating sleeve extends into the cylinder wall; the wiring bolt penetrates and is fixed in the insulating sleeve, the upper end and the lower end of the wiring bolt are respectively exposed out of the top end and the bottom end of the insulating sleeve, the upper end of the wiring bolt is connected with a cable conductor and an external power supply, and the lower end of the wiring bolt is connected with the stator winding through a stator winding lead. According to the structure, the installation positions of the insulating sleeve and the wiring bolt are moved into the cylinder wall of the base, so that a part of the insulating sleeve and the wiring bolt are accommodated in the cavity of the cylinder wall of the base, and thus, the space occupied by the wiring box outside the base can be greatly reduced, the problems that the space of the wiring box of the motor in the prior art is compressed, a terminal sleeve and a special stop gasket cannot be arranged are solved, and the motor can be used in the improved locomotive head of a transport locomotive for coal mines.
2. The upper end and the lower end of the wiring bolt are respectively fixed at the top end and the bottom end of the insulating sleeve through double nuts, the wiring bolt is provided with a first anti-rotation section with a polygonal section, a sleeve hole of the insulating sleeve is provided with a second anti-rotation section which is correspondingly matched with the sleeve hole, a second step with a downward step surface is arranged in the insulating sleeve, and at least one bolt is arranged between the second step in the insulating sleeve and the outer surface of the cylinder wall of the engine base. The structure of the invention ensures that the insulating sleeve is molded into a whole by the brass thread sleeve and SMC molding compound without manufacturing the terminal sleeve like the prior art, thereby forming a cylindrical or conical sleeve cylindrical structural member with a cylindrical hole at the center, greatly reducing the cost of a mold for manufacturing the terminal sleeve when a prototype or a small batch is manufactured, simplifying the device and reducing the cost.
3. Two of the three insulating sleeves are set as short insulating sleeves, the other insulating sleeve is set as a long insulating sleeve, two of the three wiring bolts are short wiring bolts, the other wiring bolt is a long wiring bolt, the long wiring bolt is matched with the corresponding long insulating sleeve, and the short wiring bolt is matched with the corresponding short insulating sleeve; the first through holes of the engine base are arranged in a row along the circumferential direction of the engine base, the long insulating sleeve and the long wiring bolt are arranged at the first through hole in the middle of the three first through holes, and form height difference with the short insulating sleeves and the short wiring bolts at two sides. The structure of the invention can further reduce the space between the three insulating sleeves and the three wiring bolts, so that the wiring device has compact structure, the occupied space size meets the requirement that the space of the wiring box is limited by the space of the whole machine and is compressed, and the height difference of the three insulating sleeves and the three wiring bolts ensures that the electrical clearance and the creepage distance of the wiring device can meet the standard requirement.
4. The invention adopts the insulating wiring board to be clamped between the double nuts at the lower end of the wiring bolt, the hole edge of the first through hole in the cylinder wall of the base and the bottom end of the wiring bolt. The structure of the invention further ensures that the electrical clearance and the creepage distance of the junction device can meet the standard requirements.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, the wiring device of the mining explosion-proof permanent magnet synchronous variable frequency traction motor is not limited to the embodiment.
Drawings
FIG. 1 is a schematic block diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a perspective view of the terminal bolt and the insulating sleeve according to the embodiment of the present invention.
Detailed Description
Examples
Referring to fig. 1 to 3, the mining flameproof permanent magnet synchronous variable frequency traction motor wiring device comprises a base 1, a stator winding 2, a wiring bolt 3 and an insulating sleeve 4; the motor base 1 is cylindrical and is provided with openings 11 with two through sides, and the stator winding 2 is arranged in the cylinder wall of the motor base 1 and is provided with a preset distance from one opening 11 of the motor base 1; a first through hole 12 penetrating through the cylinder wall is arranged in the preset distance, the insulating sleeve 4 is fixed outside the cylinder wall of the machine base 1 through the first through hole 12, and the bottom end of the insulating sleeve 4 extends into the cylinder wall; the wiring bolt 3 penetrates and is fixed in the insulating sleeve 4, the upper end of the wiring bolt 3 is exposed out of the top end of the insulating sleeve 4, the lower end of the wiring bolt 3 is exposed out of the bottom end of the insulating sleeve 4, the upper end of the wiring bolt is connected with an external power supply through a cable, and the lower end of the wiring bolt is connected with the stator winding 2 through a stator winding lead 21; since the lower end of the terminal bolt 3 is close to the stator winding 2, the stator winding lead wire 21 can be short.
In this embodiment, the upper end and the lower end of the connection bolt 3 are respectively fixed to the top end and the bottom end of the insulating sleeve through two nuts (two hexagonal copper thin nuts) 31, that is, the two hexagonal copper thin nuts 31 fixed to the upper end of the connection bolt 3 are abutted to the top end of the insulating sleeve 4, and the two hexagonal copper thin nuts 31 fixed to the lower end of the connection bolt 3 are abutted to the bottom end of the insulating sleeve 4, so that the connection bolt 3 and the insulating sleeve 4 are fixed in the axial direction of the connection bolt 3.
In this embodiment, a flat washer 32 and a spring washer 33 are further installed between the double nuts 31 at the upper end and the lower end of the terminal bolt 3 and the top end and the bottom end of the corresponding insulating sleeve 4.
In this embodiment, the terminal bolt 3 is provided with a first anti-rotation section 34 with a polygonal cross section, in this embodiment, the cross section of the first anti-rotation section 34 is in a quadrilateral shape, a corresponding matching position of a trepanning 41 of the insulating sleeve 4 is provided with a second anti-rotation section 42 matched with the first anti-rotation section 34 of the terminal bolt 3, when the terminal bolt 3 penetrates into and is fixed in the insulating sleeve 4, the first anti-rotation section 34 of the terminal bolt 3 is matched with the second anti-rotation section 42 of the insulating sleeve 4, so as to prevent the terminal bolt 3 from rotating relative to the insulating sleeve 4 along the circumferential direction of the terminal bolt.
In this embodiment, two pairs of first steps 51 are disposed at the matching position of the wiring bolt 3 and the sleeve hole of the insulating sleeve 4.
In this embodiment, the insulating sleeve is provided with a second step 43 with a downward step surface, the second step 43 of the insulating sleeve 4 abuts against the hole edge of the first through hole 12 outside the cylinder wall of the base 1, and the insulating sleeve is fixed on the base 1 by using the double nuts 31 at the upper end and the lower end of the connecting bolt 3.
In this embodiment, a plug 52 is further installed between the second step 43 in the insulating sleeve 4 and the outer surface of the cylinder wall of the housing 1, and when the insulating sleeve 4 is fixed to the first through hole 12 of the housing 1, the plug 52 is inserted between the insulating sleeve 4 and the housing 1, so that the insulating sleeve 4 cannot rotate in the circumferential direction along the housing 1.
Furthermore, the device also comprises an insulating wiring board 6, wherein the insulating wiring board 6 is clamped between a double nut 31 at the lower end of the wiring bolt 3 and the edge of the first through hole 12 in the cylinder wall of the machine base 1 and the bottom end of the wiring bolt 3.
In this embodiment, the number of the wiring bolts 3 and the number of the insulating sleeves 4 are respectively three, two of the three insulating sleeves 4 are short insulating sleeves 401, the other one is long insulating sleeve 402, two of the three wiring bolts 3 are short wiring bolts 301, the other one is long wiring bolts 302, the long wiring bolts 302 are matched with the corresponding long insulating sleeves 402, and the short wiring bolts 301 are matched with the corresponding short insulating sleeves 401; the first through holes 12 of the machine base 1 are three and are arranged in a row along the circumferential direction of the machine base, and the long insulating sleeve 402 and the long wiring bolt 302 are arranged at the middle first through hole of the three first through holes and form height difference with the short insulating sleeves and the short wiring bolts at the two sides.
The insulating wiring board 6 covers the three first through holes 12 of the base, and second through holes 61 are respectively arranged at positions corresponding to the first through holes; in the insulating wiring board 6, a sinking groove 62 is further arranged at the position of the second through hole on the surface facing the inner surface of the cylinder wall of the base 1, the surface facing the inner surface of the cylinder wall of the base 6 is attached to the inner surface of the cylinder wall of the base 1, the bottom ends of the three insulating sleeves 4 are respectively abutted in the three corresponding sinking grooves 62, the lower ends of the three wiring bolts 3 penetrate through the corresponding second through holes 61 of the insulating wiring board, and the lower ends of the three wiring bolts 3 are respectively locked on the surface of the insulating wiring board 6, which is back to the inner surface of the cylinder wall of the base 1, through the double nuts 31 and the flat washers 32 and the spring washers 33.
In the embodiment, the insulating sleeve 4 and the insulating wiring board 6 are made of polytetrafluoroethylene materials (plates and bars); the wiring bolt (long and short) has the functions of electric conduction and longitudinal positioning of the longitudinal connecting piece; the insulating sleeve (long and short) not only plays a role of supporting the wiring bolt (long and short), but also plays an insulating role; the insulating wiring board has the functions of insulation and longitudinal positioning of the whole wiring device, and simultaneously, the electric clearance and creepage distance of the terminal are ensured to meet the standard requirements.
In this embodiment, the upper end of the wiring bolt 3 is further provided with a component 53 consisting of a hexagonal copper thin nut, a flat washer, a spring washer and an arch washer for connecting a power cable; at the lower end of the terminal bolt 3 is also mounted an assembly 54 of thin hexagonal copper nuts, plain washers and spring washers for connecting the stator winding leads.
The invention relates to a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, which is characterized in that a stator winding 2 is arranged in the cylinder wall of a machine base 1, and a preset distance is arranged between the stator winding and one opening of the machine base 1; a first through hole 12 penetrating through the cylinder wall is arranged in the preset distance, the insulating sleeve 4 is fixed outside the cylinder wall of the machine base 1 through the first through hole 12, and the bottom end of the insulating sleeve 4 extends into the cylinder wall; the wiring bolt 3 penetrates and is fixed in the insulating sleeve 4, the upper end and the lower end of the wiring bolt 3 are respectively exposed out of the top end and the bottom end of the insulating sleeve 4, the upper end of the wiring bolt 3 is connected with a cable and an external power supply, and the lower end of the wiring bolt 3 is connected with the stator winding 2 through a stator winding lead 21. According to the structure, the installation positions of the insulating sleeve 4 and the wiring bolt 3 are moved into the cylinder wall of the engine base, so that a part of the insulating sleeve 4 and the wiring bolt 3 are accommodated in the cavity of the cylinder wall of the engine base, and thus, the space occupied by the wiring box outside the engine base can be greatly reduced, the problems that the space of the wiring box of the motor in the prior art is compressed, a terminal sleeve and a special stop gasket cannot be arranged are solved, and the motor can be used for improving the locomotive of the transport locomotive for coal mines.
The invention relates to a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, wherein the upper end and the lower end of a wiring bolt 3 are respectively fixed at the top end and the bottom end of an insulating sleeve 4 through double nuts 31, the wiring bolt 3 is provided with a first anti-rotation section 34 with a polygonal cross section, a sleeve hole 41 of the insulating sleeve 4 is provided with a second anti-rotation section 42 which is correspondingly matched with the sleeve hole, a second step 43 with a downward step surface is arranged in the insulating sleeve 4, and at least one bolt 52 is arranged between the second step 43 in the insulating sleeve and the outer surface of the cylinder wall of a machine base. The structure of the invention ensures that the insulating sleeve 4 does not need to be molded integrally by the brass thread sleeve and SMC molding compound when manufacturing the terminal sleeve like the prior art, thereby forming a cylindrical or conical sleeve cylindrical structural member with a cylindrical hole at the center, greatly reducing the cost of the die for manufacturing the terminal sleeve when manufacturing a prototype and a small batch, simplifying the device and reducing the cost.
The invention relates to a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, which adopts the technical scheme that two of three insulating sleeves 4 are set as short insulating sleeves 401, the other insulating sleeve is set as a long insulating sleeve 402, two of three wiring bolts 3 are short wiring bolts 301, the other wiring bolt is a long wiring bolt 302, the long wiring bolt 302 is matched with the corresponding long insulating sleeve 402, and the short wiring bolts 301 are matched with the corresponding short insulating sleeve 401; the first through holes 12 of the base 1 are arranged in a row along the circumferential direction of the base, and the long insulating bush 402 and the long wiring bolt 302 are installed at the middle one of the three first through holes and form a height difference with the short insulating bushes 401 and the short wiring bolts 301 at both sides. The structure of the invention can further reduce the space between the three insulating sleeves and the three wiring bolts, so that the wiring device has compact structure, the occupied space size meets the requirement that the space of the wiring box is limited by the space of the whole machine and is compressed, and the height difference of the three insulating sleeves and the three wiring bolts ensures that the electrical clearance and the creepage distance of the wiring device can meet the standard requirement.
The invention relates to a mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device, which adopts an insulating wiring board 6 clamped between double nuts 31 at the lower end of a wiring bolt 3, the hole edge of a first through hole in the cylinder wall of a machine base 1 and the bottom end of the wiring bolt. The structure of the invention further ensures that the electrical clearance and the creepage distance of the junction device can meet the standard requirements.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. A mining explosion-proof permanent magnet synchronous variable frequency traction motor wiring device comprises a base, a stator winding, a wiring bolt and an insulating sleeve; the engine base is cylindrical and is provided with an opening with two through sides; the method is characterized in that: the stator winding is arranged in the cylinder wall of the base and is arranged at a preset distance from one opening of the base; a first through hole penetrating through the cylinder wall is formed in the preset distance, the insulating sleeve is fixed outside the cylinder wall of the machine base through the first through hole, and the bottom end of the insulating sleeve extends into the cylinder wall; the wiring bolt penetrates into and is fixed in the insulating sleeve, the upper end and the lower end of the wiring bolt are respectively exposed out of the top end and the bottom end of the insulating sleeve, the upper end of the wiring bolt is connected with a cable conductor and an external power supply, and the lower end of the wiring bolt is connected with the stator winding through a stator winding lead; the wiring bolts and the insulating sleeves are respectively correspondingly matched three, two of the three insulating sleeves are short insulating sleeves, the other insulating sleeve is a long insulating sleeve, two of the three wiring bolts are short wiring bolts, the other wiring bolt is a long wiring bolt, the long wiring bolt is matched with the corresponding long insulating sleeve, and the short wiring bolt is matched with the corresponding short insulating sleeve; the first through holes of the engine base are three and are arranged in a row along the circumferential direction of the engine base, the long insulating sleeve and the long wiring bolt are arranged at one first through hole in the middle of the three first through holes, and form height difference with the short insulating sleeves and the short wiring bolts at two sides.
2. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 1, characterized in that: the upper end and the lower end of the wiring bolt are fixed to the top end and the bottom end of the insulating sleeve through double nuts respectively, so that the wiring bolt and the insulating sleeve are fixed to each other in the axis direction of the wiring bolt.
3. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 2, characterized in that: and a flat washer and a spring washer are also arranged between the double nuts at the upper end and the lower end of the wiring bolt and the top end and the bottom end of the insulating sleeve which are correspondingly matched.
4. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 1, characterized in that: the terminal bolt is equipped with the cross-section and is the first section of preventing changeing of polygon shape, be equipped with in the corresponding cooperation department of the trepanning of insulating cover with the section is prevented changeing by the first second of preventing changeing the section adaptation of terminal bolt, works as the terminal bolt penetrates and fixes when in the insulating cover, the first section of preventing changeing of terminal bolt with the section cooperation is prevented changeing by the second of insulating cover, in order to prevent the terminal bolt for insulating cover is followed terminal bolt's circumferential direction.
5. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 4, characterized in that: and at least one pair of first steps which are matched with each other is arranged at the matching position of the wiring bolt and the sleeve hole of the insulating sleeve.
6. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 2, characterized in that: and a second step with a downward step surface is arranged in the insulating sleeve, the second step of the insulating sleeve is abutted against the hole edge of the first through hole outside the cylinder wall of the base, and the second step of the insulating sleeve is fixed on the base by utilizing double nuts at the upper end and the lower end of the wiring bolt.
7. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 6, characterized in that: at least one bolt is further installed between the second step in the insulating sleeve and the outer surface of the cylinder wall of the machine base, and when the insulating sleeve is fixed to the first through hole of the machine base, the bolt is inserted between the insulating sleeve and the machine base, so that the insulating sleeve cannot rotate in the circumferential direction along the machine base.
8. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 2, characterized in that: furthermore, the device also comprises an insulating wiring board, wherein the insulating wiring board is clamped between double nuts at the lower end of the wiring bolt and the lower hole edge of the first through hole in the cylinder wall of the base.
9. The mining flameproof permanent magnet synchronous variable frequency traction motor wiring device according to claim 8, characterized in that: the insulating wiring board covers the three first through holes of the base, and second through holes are respectively arranged at positions corresponding to the first through holes; in the insulating wiring board, a sinking groove is further formed in the position of the second through hole in one surface facing the inner surface of the cylinder wall of the base, one surface of the insulating wiring board facing the inner surface of the cylinder wall of the base is attached to the inner surface of the cylinder wall of the base, the bottom ends of the three insulating sleeves are respectively abutted to the three corresponding sinking grooves, the lower ends of the three wiring bolts penetrate through the corresponding second through holes of the insulating wiring board, and the lower ends of the three wiring bolts are respectively locked to one surface, facing away from the inner surface of the cylinder wall of the base, of the insulating wiring board through the double nuts and matched with the flat washer and the spring washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224257.0A CN111416466B (en) | 2020-03-26 | 2020-03-26 | Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224257.0A CN111416466B (en) | 2020-03-26 | 2020-03-26 | Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111416466A CN111416466A (en) | 2020-07-14 |
| CN111416466B true CN111416466B (en) | 2021-08-03 |
Family
ID=71493302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010224257.0A Active CN111416466B (en) | 2020-03-26 | 2020-03-26 | Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111416466B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285555B (en) * | 2021-04-14 | 2022-10-28 | 宁波安信数控技术有限公司 | Terminal box for an electric machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813247U (en) * | 2010-08-23 | 2011-04-27 | 南阳防爆集团股份有限公司 | Cable lead connection structure of junction box of explosion-proof blower motor |
| CN202798299U (en) * | 2012-10-16 | 2013-03-13 | 湘潭如意电机电器有限公司 | Flame-proof mining variable-frequency adjustable-speed narrow rail battery car traction motor |
| CN204334192U (en) * | 2014-12-30 | 2015-05-13 | 中船重工电机科技股份有限公司 | Alternating current machine power supply lead wire device |
| CN207218406U (en) * | 2017-08-08 | 2018-04-10 | 贵州大工新能源科技有限公司 | A kind of stator outlet structure of New energy automobile motor |
| CN207573157U (en) * | 2017-12-04 | 2018-07-03 | 南京磁谷科技有限公司 | A kind of board-like binding post structure |
| CN207868898U (en) * | 2017-12-19 | 2018-09-14 | 卧龙电气集团股份有限公司 | A kind of naval vessel flame-proof type double speed high temperature resistant three phase asynchronous motor |
| CN110492655B (en) * | 2019-08-26 | 2024-03-29 | 宁夏西北骏马电机制造股份有限公司 | Mining high-voltage explosion-proof variable-frequency speed-regulating three-phase asynchronous motor |
-
2020
- 2020-03-26 CN CN202010224257.0A patent/CN111416466B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111416466A (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204992050U (en) | Motor three -phase power pencil interface switching copper bar structure | |
| CN103795269A (en) | Bus bar assembly and method of manufacturing the same | |
| CN1866656A (en) | Electric distribution box | |
| CN111416466B (en) | Mining flame-proof type permanent magnet synchronous variable frequency traction motor wiring device | |
| CN102790043A (en) | Power semiconductor | |
| CN203553393U (en) | Electric automobile cabinet power terminal | |
| CN103368306A (en) | Motor, stator segment and making method | |
| EP3226358B1 (en) | Time relay socket | |
| CN203278613U (en) | Frequency converter wiring terminal and external cable connection structure | |
| CN212412932U (en) | Wiring device in motor junction box | |
| CN115276296A (en) | Motor housing cover device, motor and manufacturing method of motor | |
| CN212162993U (en) | Brushless motor's end cover and brushless motor | |
| CN211531544U (en) | Controller of fuel cell air compressor | |
| CN211508800U (en) | Internal division type motor junction box | |
| CN213278434U (en) | Wiring board convenient to change terminal quantity | |
| CN219591242U (en) | Current transformer with contact box | |
| CN113285555B (en) | Terminal box for an electric machine | |
| CN219393797U (en) | High-voltage connector of electric drive system, electric drive system and electric automobile | |
| CN211828637U (en) | Wire clamping module of direct current contactor | |
| CN217643072U (en) | Copper bar and motor controller | |
| CN212304988U (en) | Multi-core wire passing structure of explosion-proof type low-power multi-speed motor winding lead wire | |
| CN211089314U (en) | Motor and outlet box thereof | |
| CN214957515U (en) | Multi-directional outlet energy storage connector | |
| CN212366283U (en) | Power supply connector of guide rail system | |
| KR102379080B1 (en) | Bus bar assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |