CN207719932U - A kind of large-sized DC traction electric machine brush holder fine tuning structure - Google Patents
A kind of large-sized DC traction electric machine brush holder fine tuning structure Download PDFInfo
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- CN207719932U CN207719932U CN201721740317.4U CN201721740317U CN207719932U CN 207719932 U CN207719932 U CN 207719932U CN 201721740317 U CN201721740317 U CN 201721740317U CN 207719932 U CN207719932 U CN 207719932U
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- brush holder
- fastening
- electric machine
- seat ring
- gear
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Abstract
The utility model discloses a kind of large-sized DC traction electric machine brush holder fine tuning structures, outer circle side including the motor front end cover (1) being mounted on electric machine stand (3), and on the motor front end cover is equipped with the brush holder support seat ring (5) of gear wheel；Rack (2), the connected pinion gear (4) engaged with the gear wheel in side of rack are rotatablely connected on electric machine stand；A fracture is opened up on the circle body of the brush holder support seat ring, the circle body of the fracture both sides is connected by clamp device；By the fastening gear on rotary fixture, brush holder support seat ring can be amplified stretching, then with the tooth on the knob fastening fastening gear being fixed on the knob plate on brush holder support seat ring so that brush holder position is fixed.The utility model solves the nonadjustable problem of DC traction motor brush, and such brush rocker structure effectively improves the commutation of motor, improves the service life of motor, and ensures that motor is run under severe operating mode, and brush position will not change.
Description
Technical field
The present invention relates to DC traction motor manufacturing fields, more specifically to a kind of large-sized DC traction electric machine brush
Frame fine tuning structure.
Background technology
The DC traction motor of locomotive in the prior art is drawn due to being pulled the limitation in motor application field
The requirement that the structure and work characteristics of motor have its special：I.e. traction electric machine will disclosure satisfy that nominal torque is big, permanent work(range is wide,
Overload magnification is high；The features such as power density is big, small, perfect heat-dissipating.
Currently, since DC traction motor is limited in the installation space of locomotive, structure is all compact, to reduce electricity
Body accumulates, and the brush rocker structure of use is generally nonadjustable brush rocker structure, and the neutral point of such brush may just have slightly partially
Difference influences motor commutation, and it is the brush yoke coil structures for having adjustment brush position to have part motor, but because of traction electric machine building ring
Border is more severe, neutral position of brush can be caused to deviate in Long-term Vibration, motor commutation can be also influenced after longtime running, sternly
Motor can be damaged when weight.
Invention content
The present invention solves this disadvantage that cannot be adjusted of DC traction motor brush rocker structure, while can ensure fine tuning electricity
After brush neutral point, it can ensure that position offset will not occur for brush under severe working condition.
In order to achieve the above object, the present invention provides a kind of large-sized DC traction electric machine brush holder fine tuning structure, including installation
Motor front end cover on electric machine stand, and the brush holder support seat ring on the motor front end cover, the brush holder support seat ring
Outer circle side is equipped with gear wheel.
Be rotatablely connected rack on the electric machine stand, the side of the rack is connected pinion gear, the pinion gear with
The gear wheel engagement.
A fracture is opened up on the circle body of the brush holder support seat ring, the circle body of the fracture both sides is connected by clamp device
It connects.
The clamp device includes two fastening frames being oppositely arranged on the circle body of the fracture both sides, connection two
The fastening screw of a fastening frame, and the fastening gear that is arranged in the middle part of the fastening screw.
Two fastening frame opposite sides open up threaded hole respectively；The interior spiral shell of the threaded hole on two fastening frames
Line is oppositely oriented；The both ends of the fastening screw are screwed onto in the threaded hole of two fastening frames.
The clamp device further includes that knob board group is closed, and the knob board group conjunction includes that one end is fixed on the brush holder support seat ring
On knob plate, the other end of the knob plate is fixed with knob；The knob plate has elasticity, the knob is pressed in described
In the tooth socket for fastening gear.
Above-mentioned large-sized DC traction electric machine brush holder fine tuning structure, under preferred embodiment, the middle part of the fastening screw is also fixed
There is fastening nut.
Above-mentioned large-sized DC traction electric machine brush holder fine tuning structure, under preferred embodiment, the knob plate and the brush holder support seat ring
Connecting portion be equipped with backing plate.
Above-mentioned large-sized DC traction electric machine brush holder fine tuning structure, under preferred embodiment, the portion of the rack connection pinion gear
The cross section divided is rectangular, square hole is equipped at the pinion gear center, the pinion gear is socketed on the rack, and is passed through
The nut for being screwed onto the gear boom end is fixed.
For the present invention compared with the brush rocker structure of previous DC traction motor, the advantages of this brush rocker structure, is as follows：
1, brush yoke coil structures are carried so that the brush position of motor can adjust, meanwhile, it is multiple tooth on the outside of brush holder support seat ring
Several gear wheels can accurately finely tune brush position, solve DC traction by being engaged with the pinion gear on electric machine stand
The nonadjustable problem of motor brush, such brush rocker structure effectively improve the commutation of motor, and that improves motor uses the longevity
Life.
2, in the reverse side of brush holder, it is mounted with fastening gear, the screw thread at fastening gear both ends is respectively for forward screw thread and anti-
To screw thread, brush holder support seat ring can be shunk, be opened by rotational fastener gear.After adjusting brush central point, by fastening gear rotation
Stretching brush holder support seat ring, then with the tooth in the knob fastening pinion gear being fixed on the knob plate on brush holder support seat ring so that brush holder
Position is fixed, ensures that motor is run under severe operating mode, brush position will not change.
Description of the drawings
Fig. 1 is brush holder fine tuning structure schematic diagram；
Fig. 2 is the structural schematic diagram of rack；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the side view of pinion gear；
Fig. 5 is the front view of pinion gear；
The structural schematic diagram of Fig. 6 brush holder support seat rings；
Fig. 7 is the B-B sectional views of Fig. 6；
Fig. 8 is the partial enlarged view at fracture and clamp device on brush holder support seat ring；
Fig. 9 is the C-C enlarged drawings of Fig. 8；
Figure 10 is the structural schematic diagram of fastening screw；
Figure 11 is the K of Figure 10 to schematic diagram；
Figure 12 is the structural schematic diagram that knob board group is closed.
In figure, 1, motor front end cover, 2, rack, 3, electric machine stand, 4, pinion gear, 5, brush holder support seat ring, 6, gear wheel, 7,
Fracture, 8, fastening frame, 9, fastening screw, 10, fastening gear, 11, knob board group close, 11a, knob plate, 11b, knob, 12, tight
Gu nut, 13, backing plate.
Specific implementation mode
As shown in Fig. 1~Fig. 7, a kind of large-sized DC traction electric machine brush holder fine tuning structure of the present invention, including it is mounted on motor
Motor front end cover 1 on engine base 3, and the brush holder support seat ring 5 on the motor front end cover 1, the brush holder support seat ring 5 it is outer
Circle side is equipped with gear wheel 6.
Rack 2, the connected pinion gear 4 in side of the rack 2, the small tooth are rotatablely connected on the electric machine stand 3
Wheel 4 is engaged with the gear wheel 6.When rotation pinion 4, pinion gear 4 drives gear wheel 6 to rotate, and brush holder support seat ring 5 is rotated to electricity
Brush central point is adjusted.
The cross section that the rack 2 connects the part of pinion gear 4 is rectangular, and square hole is equipped at 4 center of the pinion gear,
The pinion gear 4 is socketed on the rack 2, and the nut by being screwed onto 2 end of the rack is fixed.
A fracture 7 is opened up on the circle body of the brush holder support seat ring 5, the circle body of 7 both sides of the fracture is filled by fastening
Set connection.
As shown in Fig. 8~Figure 12, the clamp device includes being oppositely arranged on the circle body of 7 both sides of the fracture
Two fastening frames 8, the fastening screw 9 for connecting two fastening frames 8, and the fastening at 9 middle part of the fastening screw is set
Gear 10.
Two 8 opposite sides of the fastening frame open up threaded hole respectively；The threaded hole on two fastening frames 8 it is interior
Thread rotary orientation is opposite；The both ends of the fastening screw 9 are screwed onto in the threaded hole of two fastening frames 8.Pass through rotational fastener
Gear 10, the length that fastening screw 9 screws in fastening frame 8 change, and can control brush yoke circle 5 and shrink or open.
Fastening gear 10 is adjusted for the ease of rotation, fastening nut 12 is further fixed at the middle part of the fastening screw 9, it can
Fastening gear 10 and fastening screw 12 is driven to rotate using open-end wrench rotation fastening nut 12.
The clamp device further includes that knob board group closes 11, and the knob board group closes 11 and is fixed on the brush holder support including one end
Knob plate 11a on seat ring 5, the other end of the knob plate 11a are fixed with knob 11b；The knob plate 11a has elasticity,
The knob 11b is pressed in the tooth socket of the fastening gear 10.The interconnecting piece of the knob plate 11a and the brush holder support seat ring 5
Position is equipped with the backing plate 13 for being used for adjusting the knob plate 11a.
After adjusting brush central point, rotational fastener gear 10 is by 5 stretching of brush holder support seat ring, then with being fixed on brush yoke
The tooth on knob 11b fastening fastening gears 10 on knob plate 11a on circle 5 so that brush holder position is fixed, ensures motor
It is run under severe operating mode, brush position will not change.
Fig. 1 show DC traction motor brush holder fine tuning structure schematic diagram, after brush holder support seat ring shown in Fig. 6, Fig. 75 processes,
The outside of brush holder support seat ring 5 is gear wheel 6, when assembling brush holder assembly, first with the assembly of other brush holders, assembles brush holder support and brush
It holds, pays attention to the assembly of brush holder reverse side, adjust the elasticity of brush holder support seat ring 5 when especially paying attention to reinforcing brush holder with fastening gear 10, protect
While demonstrate,proving solid and reliable, guarantee does not bring it about deformation.After brush holder assembles, brush holder assembly is fixed on motor front end cover
It on 1, when adjusting brush central point, is combined by rack 2 across electric machine stand 3 and pinion gear 4, with 5 outside of brush holder support seat ring
Gear wheel 6 engage, complete the fine tuning of brush holder.In the reverse side of brush holder support seat ring 5, it is mounted with fastening gear 10, fastens the two of gear
The screw thread at end is that one end is left hand thread, and the other end is right-handed thread；Rotational fastener gear 10 reduces brush holder support seat ring 5 first,
After adjusting brush central point, brush holder support seat ring 5 is amplified stretching, then with being fixed on brush holder support seat ring 5 by rotational fastener gear 10
Knob plate 11a on knob 11b fastening fastening gear 10 on tooth so that brush holder position is fixed, ensures that motor is being disliked
It is run under bad operating mode, brush position will not change.
Brush holder support seat ring 5 amplifies stretching, is equivalent to the seam allowance face of the seam allowance of the brush holder support seat ring 5 in Fig. 7 and motor front end cover 1
Interference fit, gapless.To ensure that the position of brush holder support seat ring 5 will not change.
This brush rocker structure is the brush holder support structure that can adjust brush holder position, is gear on the outside of brush holder support seat ring, and is fixed on machine
Rack and pinion gear on seat are combined, and can finely tune brush position, while after fine tuning, can pass through nibbling between gear
It closes, ensures that brush holder position does not deviate.Brush holder support seat ring itself also band there are one adjustable pinion gear, while with the hardened conjunction of knob,
Prevent brush holder from position change occurring in motor operation.It is applied while two kinds of fixed forms, ensure that motor brush rocker securely may be used
It leans on, such brush rocker structure has been applied in motor manufacturing, obtains the favorable comment of user.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope of present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of large-sized DC traction electric machine brush holder fine tuning structure, including the motor front end cover that is mounted on electric machine stand (3)
And the brush holder support seat ring (5) on the motor front end cover (1) (1), which is characterized in that the brush holder support seat ring (5) it is outer
Circle side is equipped with gear wheel (6)；
Rack (2) is rotatablely connected on the electric machine stand (3), the connected pinion gear (4) in side of the rack (2) is described
Pinion gear (4) is engaged with the gear wheel (6)；
A fracture (7) is opened up on the circle body of the brush holder support seat ring (5), the circle body of fracture (7) both sides passes through fastening
Device connects；
The clamp device is included in two fastening frames (8) being oppositely arranged on the circle body of the fracture (7) both sides, connection
The fastening screw (9) of two fastening frames (8), and fastening gear (10) of the setting in the middle part of the fastening screw (9)；
Two fastening frame (8) opposite sides open up threaded hole respectively；The threaded hole on two fastening frames (8) it is interior
Thread rotary orientation is opposite；The both ends of the fastening screw (9) are screwed onto in the threaded hole of two fastening frames (8)；
The clamp device further includes that knob board group closes (11), and it includes that one end is fixed on the brush holder support that the knob board group, which closes (11),
The other end of knob plate (11a) on seat ring (5), the knob plate (11a) is fixed with knob (11b)；The knob plate (11a)
With elasticity, the knob (11b) is pressed in the tooth socket of the fastening gear (10).
2. large-sized DC traction electric machine brush holder fine tuning structure according to claim 1, which is characterized in that the fastening screw
(9) fastening nut (12) is further fixed in the middle part of.
3. large-sized DC traction electric machine brush holder fine tuning structure according to claim 1, which is characterized in that the knob plate
(11a) and the connecting portion of the brush holder support seat ring (5) are equipped with backing plate (13).
4. large-sized DC traction electric machine brush holder fine tuning structure according to claim 1, which is characterized in that the rack (2)
It is rectangular to connect the cross section of the part of pinion gear (4), and square hole, pinion gear (4) set are equipped at pinion gear (4) center
It is connected on the rack (2), and the nut by being screwed onto the rack (2) end is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740317.4U CN207719932U (en) | 2017-12-14 | 2017-12-14 | A kind of large-sized DC traction electric machine brush holder fine tuning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740317.4U CN207719932U (en) | 2017-12-14 | 2017-12-14 | A kind of large-sized DC traction electric machine brush holder fine tuning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207719932U true CN207719932U (en) | 2018-08-10 |
Family
ID=63055635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740317.4U Active CN207719932U (en) | 2017-12-14 | 2017-12-14 | A kind of large-sized DC traction electric machine brush holder fine tuning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207719932U (en) |
-
2017
- 2017-12-14 CN CN201721740317.4U patent/CN207719932U/en active Active
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