CN206759242U - A kind of brush changing type direct current generator used for electric hoist - Google Patents
A kind of brush changing type direct current generator used for electric hoist Download PDFInfo
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- CN206759242U CN206759242U CN201720526695.6U CN201720526695U CN206759242U CN 206759242 U CN206759242 U CN 206759242U CN 201720526695 U CN201720526695 U CN 201720526695U CN 206759242 U CN206759242 U CN 206759242U
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- carbon brush
- direct current
- current generator
- brush holder
- electric hoist
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Abstract
The utility model provides a kind of brush changing type direct current generator used for electric hoist, including casing, drive end bearing bracket, rear end cap, arbor, commutator, carbon brush and the carbon brush holder on rear end cap, wherein, carbon brush holder is provided with the through hole of installation carbon brush, spring is provided with through hole, one end of spring contradicts with carbon brush and carbon brush is contacted with commutator, the other end of spring is connected with binding post, carbon brush holder is provided with buckle, buckle is fastened on carbon brush holder and moved with pressure holding binding post and limited spring and carbon brush along the axial direction of through hole, by the handling mode for setting buckle, it is easy to change the carbon brush on motor.
Description
Technical field
It the utility model is related to field of power tools, more particularly to a kind of brush changing type direct current generator used for electric hoist.
Background technology
Carbon brush is to be installed on inside motor to seal in existing direct current generator, can not change carbon brush, once carbon brush abrasion
Shorten to a certain extent, whole motor will all be scrapped；Although disclose in the prior art one kind can brush changing type DC micromotor,
Carbon brush firmware is made improvements, in motor case afterbody outer wall two ring carbon brush of structure identical half of opposite removable connection
Mounting bracket, is provided with the radial direction carbon brush sliding tube for installing carbon brush on carbon brush mounting bracket, and the carbon brush in carbon brush sliding tube is by sealing
Lid is contacted by spring overhead with the fortune on rotor to device, realizes overhauling and changing for carbon brush for electric machine；Wherein seal closure leads to
Cross threaded connection to fix, handling are comparatively laborious, and motor down-lead introduces motor from the through hole of seal closure, during motor use easily
There is phenomena such as broken string, off-line, and then cause electric leakage to cause security incident.
Utility model content
The purpose of this utility model is the brush changing type direct current generator used for electric hoist for providing a kind of carbon brush convenient disassembly.
In order to achieve the above object, the utility model adopts the following technical scheme that：Including casing, drive end bearing bracket, rear end cap, machine
Axle, commutator, carbon brush and the carbon brush holder on rear end cap, wherein, carbon brush holder is provided with the through hole of installation carbon brush, is set in through hole
There is spring, one end of spring contradicts with carbon brush and carbon brush is contacted with commutator, and the other end of spring is connected with binding post, carbon
Brush holder is provided with buckle, and buckle is fastened on carbon brush holder with pressure holding binding post and the axial direction side of limited spring and carbon brush along through hole
To motion.
Preferably, the carbon brush holder is integrally formed with rear end cap, and the carbon brush holder is located at rear end cap both sides and is symmetrical arranged.
Preferably, the carbon brush holder is provided with the boss being engaged with buckle, and the boss that snaps through is fastened on carbon brush
On frame.
Preferably, the carbon brush holder is provided with open slot, and the buckle is fastened on carbon brush holder and makes the one of binding post
End is connected in open slot.
Preferably, the binding post is provided with lock, and the carbon brush holder is provided with latching the through hole being engaged, described
Binding post is fastened on carbon brush holder by latching through through hole.
Preferably, the carbon brush is correspondingly arranged with commutator and deviates from the geometric center lines setting of commutator.
Preferably, the first ball bearing being engaged with arbor is provided with the drive end bearing bracket, be provided with the rear end cap with
The second ball bearing that arbor is engaged.
Preferably, the casing is high magnetic conduction mild steel casing, and the thickness of the casing is 2.5mm~5mm.
Preferably, the arbor is provided with fan blade close to rear end cap side, and the inner side of the fan blade is provided with gusset, and the gusset is set
There is a plurality of and uniform interval setting.
Preferably, the fan blade is provided with driving hole, and one end insertion driving hole of the arbor is interior to drive gusset to rotate,
Fan blade is rotated to drive gusset to rotate, and gusset rotation produces wind to be radiated to motor.
In description of the present utility model, it is to be understood that " outside ", " inner side " are rear end caps away from motor side
With fan blade close to rear end cap side, the orientation or position relationship of the instruction such as " on ", " under ", "left", "right" is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply and be signified
Device or original paper must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this practicality
New limitation.
After adopting the above technical scheme, the utility model has the following advantages that：
1st, by the connected mode of buckle-type, facilitate installing, being fixed for carbon brush, be easy to the M R of motor；Motor
After permanent use, relatively rotated for a long time between carbon brush and commutator, carbon brush abrasion is serious, and carbon is conveniently replaceable by dismantling buckle
Brush, meanwhile, indirectly by snap pressure holding binding post, avoid off-line, the risk of broken string in traditional wired mode being present, protect
Hinder the safe to use of motor, extend the service life of motor.
2nd, by the way that rear end cap and carbon brush holder are integrally formed into setting, the assembly process of motor is reduced, improves motor production effect
Rate, so it is cost-effective.
3rd, by being provided with the boss to match with buckle on carbon brush holder so that buckle is fastened on carbon brush holder completely, is entered
And make mutually to contradict between binding post, spring and carbon brush, ensure the stability of motor work.
4th, binding post is connected in the open slot on carbon brush holder by buckle, binding post extrusion spring simultaneously makes carbon brush
It is inconsistent with commutator, ensure binding post, spring, carbon brush and the stability of commutator electrical connection, meanwhile, binding post leads to
The mode that buckle is connected with carbon brush is crossed, substitutes the mode that phase line is joined directly together through spring with carbon brush, avoids motor for a long time
Using the disconnection for causing motor internal phase line and electric leakage caused by coming off.
5th, by binding post set latch, binding post is independently fastened on carbon brush holder, ensure binding post with
The electric conductivity of carbon brush, meanwhile, buckle is fastened on the outside of binding post, reduces corrosion and abrasion of the binding post by the external world.
6th, by the position of mobile carbon brush, that is, change the inclined groove of commutator, carbon brush is offset against motor direction of rotation appropriate
Angle, i.e., carbon brush is removed appropriate angle from the geometric center lines on commutator, make commutating zone from the geometry on armature
Heart line is removed an appropriate angle and entered under main pole, and commutating field caused by commutating pole is replaced using main field,
Caused rotational voltage reduces the generation of spark to offset reactance potential, extends the service life of carbon brush.
7th, by by the arbor both ends of direct current generator respectively with the first ball bearing and the second ball bearings, motor
Mechanical friction loss reduces, and concentricity is also more preferable, and motor noise is low, and the reduction of frictional dissipation extends the life-span of motor simultaneously.
8th, by the way that the thickness of casing is set into 2.5mm~5mm, motor magnetic flux density is reduced, motor is in unsaturation magnetic
Logical state, while the high-quality mild steel of high magnetic conduction is selected, it can further improve magnetic conductivity；When thickness is less than 2.5mm, case strength
The condition of work of motor is unsatisfactory for, and then reduces the service life of motor；When thickness is more than 5mm, meeting to reduce motor magnetic
Under conditions of flux density, the production cost increase of motor, meanwhile, motor own wt increase, the installation to motor is made troubles.
9th, by setting gusset on the fan blade of motor, the middle part of fan blade forms the installation sky that can accommodate the second ball bearing
Between, increase the creep age distance of commutator and the second ball bearing, while reduce the suction of the carbon dust on carbon brush and be piled up in the second ball axle
Hold, and then reduce the degree of wear of the second ball bearing.
10th, fan blade is driven to rotate by the power transmission shaft on motor, the gusset on fan blade produces suction, and the wind outside motor is led to
Later the perforate suction motor internal on end cap, radiates to motor internal part.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of brush changing type described in the utility model direct current generator embodiment one used for electric hoist.
Fig. 2 is the side view of brush changing type described in the utility model direct current generator embodiment one used for electric hoist.
Fig. 3 is the schematic diagram of fan blade in brush changing type described in the utility model direct current generator embodiment one used for electric hoist.
Fig. 4 is the enlarged drawing of A in Fig. 1.
Fig. 5 is the signal of the brush changing type described in the utility model middle connecting terminal of direct current generator embodiment one used for electric hoist
Figure.
Fig. 6 is the schematic diagram of buckle in brush changing type described in the utility model direct current generator embodiment one used for electric hoist.
Fig. 7 is the structural representation of brush changing type described in the utility model direct current generator embodiment two used for electric hoist.
Fig. 8 is the enlarged drawing of B in Fig. 7.
Fig. 9 is the signal of the brush changing type described in the utility model middle connecting terminal of direct current generator embodiment two used for electric hoist
Figure.
Figure 10 is the structural representation of brush changing type described in the utility model direct current generator embodiment three used for electric hoist.
Figure 11 is the enlarged drawing of C in Figure 10.
Figure 12 is showing for the brush changing type described in the utility model middle connecting terminal of direct current generator embodiment three used for electric hoist
It is intended to.
Figure 13 is the schematic diagram of buckle in brush changing type described in the utility model direct current generator embodiment three used for electric hoist.
It is as follows that each structure title is marked in figure：
1st, drive end bearing bracket；11st, the first ball bearing；2nd, casing；21st, stator；22nd, rotor；23rd, fan；3rd, rear end cap；31、
Second ball bearing；32nd, commutator；331st, fan blade；332nd, gusset；4th, carbon brush；41st, carbon brush holder；411st, buckle；412nd, latch；
42nd, binding post；421st, press keeping section；422nd, connecting portion；423rd, wire connecting portion；43rd, spring；5th, arbor.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection
Scope.
Embodiment one：
As shown in figures 1 to 6, the utility model includes drive end bearing bracket 1, casing 2 and rear end cap 3, arbor 5, commutator 32 and carbon brush
4, the both sides of rear end cap 3 are provided with carbon brush holder 41, and carbon brush holder 41 is symmetrical arranged, and spring 43, terminals are provided with carbon brush holder 41
Son 42, carbon brush holder 41 are provided with through hole, and radial direction of the through hole along arbor 5 is set, carbon brush 4 be inserted in through hole it is interior and with spring 43
Inconsistent, spring 43 is provided with binding post 42 away from the side of carbon brush 4, and binding post 42 is by press keeping section 421, connecting portion 422 and connects
Line portion 423 forms, carbon brush holder 41 be provided with the open slot that connecting portion 422 matches in binding post 42, meanwhile, carbon brush holder 41
It is provided with buckle 411 and the boss being engaged with buckle 411, connecting portion 421 is connected in open slot, buckle 411 is fastened on
Carbon brush holder 41 is so that the press keeping section 421 of binding post 42 presses spring 43, and then makes binding post 42, spring 43 and the phase of carbon brush 4
Mutually contradict；So ensure the stability that binding post 42, spring 43, carbon brush 4 and commutator 32 electrically connect, and then realize motor
Run well.
Stator 21 is provided with casing 2, the stator 21 is coiled into by multiple magnet steel, and the inside relative position of stator 21 is provided with and stator
The rotor 22 of 21 equal lengths, be axially arranged with through hole of the rotor 22 along casing 2, arbor 5, one end set of arbor 5 are inserted with through hole
Provided with drive end bearing bracket 1, the other end of arbor is arranged with rear end cap 3, and drive end bearing bracket 1, casing 2 and rear end cap 3 make motor formation one whole
Body, arbor 5 are provided with the first ball bearing 11 with the junction of drive end bearing bracket 1, and arbor 5 is provided with the second ball axle with the junction of rear end cap 3
31 are held, the both ends of arbor 5 are lost the mechanical friction of motor and reduced, concentricity is also more preferable, reduces motor by installing ball bearing
Noise, while extend the life-span of motor；Rotor 22 is provided with fan 23, fan along arbor direction at the first ball bearing 11
The carbon dust of 23 blowout armature of direct current motor carbon brush, reduce influence of the carbon dust accumulation to motor normal work.
Back end cover for motor is BMC (BMC) rear end cap, by setting fan blade 331, fan blade close to rear end cap side
Driving hole one is provided around on 331 and encloses the gusset 332 uniformly arranged, fan blade 331 is integrally formed with gusset 332, muscle on fan blade 331
Plate 332 increases commutator 32 and the around the offer installing space that the central space that driving hole is formed is the second ball bearing 31
The operating distance of two ball bearings 31, and then the creep age distance for increasing motor ensures the safety in utilization of motor, meanwhile, motor fortune
When turning, gusset 332 is driven to rotate, the cold wind outside casing is passed through the perforate on rear end cap 3 by suction caused by gusset 332
Motor internal is sucked, motor internal part is radiated.
In the present embodiment, carbon brush 4 offsets appropriate angle against motor direction of rotation, i.e., carbon brush 4 from commutator 32
Geometric center lines remove appropriate angle, commutating zone is removed an appropriate angle from the geometric center lines on armature and is entered
Enter under main pole, commutating field caused by commutating pole is replaced using main field, caused rotational voltage is to offset reactance electricity
Gesture, and then reduce the generation of spark, extend the service life of carbon brush.
Brush changing type direct current generator used for electric hoist uses the casing 2 of the high-quality low-carbon steel material of high magnetic conduction, and the thickness of casing 2 takes
Be worth scope 2.5mm~5mm, it is preferred that the thickness of casing 2 be 2.6mm, the optional thickness of casing 2 is 2.5mm, 3mm, 3.5mm,
4mm, 4.5mm, 5mm etc., the thickness of casing 2 is so set, motor magnetic flux density can be reduced, motor is in unsaturation magnetic flux
State, while the high-quality mild steel of high magnetic conduction is selected, it can further improve magnetic conductivity.
It is provided with stator 21 in brush changing type direct current generator used for electric hoist, span 43mm~65mm of the length of stator 21,
Preferably, the length of stator 21 is 43mm, and the length of optional stator 21 is 45mm, 50mm, 55mm, 60mm, 65mm etc., so
The length of stator 21 is set, motor torque can be increased, while reduces nominal load current, reduces electromagnetic consumable, temperature rise, improves effect
Rate and overload capacity.
Embodiment two：
The present embodiment is that the structure of the binding post is different with the difference of embodiment one.
As Figure 7-9, press keeping section 421 is provided with lock 412 in the binding post 42, and carbon brush holder 41 is provided with and lock
The through hole that button 412 is engaged, binding post 42 are fastened on carbon brush holder 41 by lock 412 through through hole.
It should be understood that the binding post is provided with least one lock.
Embodiment three：
The present embodiment is that the buckle is different with the structure of binding post with the difference of embodiment one.
As shown in figures 10-13, the buckle is provided with lock 412, and press keeping section 421 is provided with and lock in binding post 42
412 through holes to match, carbon brush holder 41 are provided with the through hole to match with lock 412, and lock 412 is initially passed through in binding post 42
Binding post 42 is fastened on carbon brush holder 41 by the through hole on press keeping section 421, the through hole being then passed through on carbon brush holder 412.
It should be understood that the buckle is provided with least one lock.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is variously modified and deforms according to the utility model, without departing from spirit of the present utility model, the utility model all should be belonged to
Scope defined in appended claims.
Claims (10)
1. a kind of brush changing type direct current generator used for electric hoist, including casing, drive end bearing bracket, rear end cap, arbor, commutator, carbon brush and
Carbon brush holder on rear end cap, it is characterised in that the carbon brush holder is provided with the through hole of installation carbon brush, is provided with the through hole
Spring, one end of the spring contradict with carbon brush and carbon brush is contacted with commutator, and the other end of the spring is connected with wiring
Terminal, the carbon brush holder are provided with buckle, and the buckle is fastened on carbon brush holder with pressure holding binding post and limited spring and carbon
Brush moves along the axial direction of through hole.
2. brush changing type direct current generator used for electric hoist according to claim 1, it is characterised in that the carbon brush holder and rear end
Lid is integrally formed, and the carbon brush holder is located at rear end cap both sides and is symmetrical arranged.
3. brush changing type direct current generator used for electric hoist according to claim 1, it is characterised in that the carbon brush holder is provided with
The boss being engaged with buckle, the boss that snaps through are fastened on carbon brush holder.
4. brush changing type direct current generator used for electric hoist according to claim 1, it is characterised in that the carbon brush holder is provided with
Open slot, the buckle are fastened on carbon brush holder and one end of binding post is connected in open slot.
5. brush changing type direct current generator used for electric hoist according to claim 1, it is characterised in that set on the binding post
There is lock, the carbon brush holder is provided with latching the through hole being engaged, and the binding post is fastened on by latching through through hole
On carbon brush holder.
6. brush changing type direct current generator used for electric hoist according to claim 1, it is characterised in that the carbon brush and commutator
The geometric center lines for being correspondingly arranged and deviating from commutator are set.
7. the brush changing type direct current generator used for electric hoist according to claim 1 to 6 any one, it is characterised in that described
The first ball bearing being engaged with arbor is provided with drive end bearing bracket, the second ball being engaged with arbor is provided with the rear end cap
Bearing.
8. the brush changing type direct current generator used for electric hoist according to claim 1 to 6 any one, it is characterised in that described
Casing is high magnetic conduction mild steel casing, and the thickness of the casing is 2.5mm~5mm.
9. the brush changing type direct current generator used for electric hoist according to claim 1 to 6 any one, it is characterised in that described
Arbor is provided with fan blade close to rear end cap side, and the inner side of the fan blade is provided with gusset, and the gusset is provided with a plurality of and uniform interval and set
Put.
10. brush changing type direct current generator used for electric hoist according to claim 9, it is characterised in that the fan blade is provided with
Driving hole, one end insertion driving hole of the arbor is interior to drive gusset to rotate, and fan blade is rotated to drive gusset to rotate, gusset rotation
Raw wind change the line of production to be radiated to motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526695.6U CN206759242U (en) | 2017-05-12 | 2017-05-12 | A kind of brush changing type direct current generator used for electric hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720526695.6U CN206759242U (en) | 2017-05-12 | 2017-05-12 | A kind of brush changing type direct current generator used for electric hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759242U true CN206759242U (en) | 2017-12-15 |
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ID=60618160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720526695.6U Active CN206759242U (en) | 2017-05-12 | 2017-05-12 | A kind of brush changing type direct current generator used for electric hoist |
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| Country | Link |
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| CN (1) | CN206759242U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035412A (en) * | 2021-02-06 | 2021-06-25 | 安徽铁信光电科技有限公司 | Transponder data transmission cable |
| CN113036987A (en) * | 2019-12-24 | 2021-06-25 | 威灵（芜湖）电机制造有限公司 | Motor brush, motor and washing machine |
-
2017
- 2017-05-12 CN CN201720526695.6U patent/CN206759242U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036987A (en) * | 2019-12-24 | 2021-06-25 | 威灵（芜湖）电机制造有限公司 | Motor brush, motor and washing machine |
| CN113035412A (en) * | 2021-02-06 | 2021-06-25 | 安徽铁信光电科技有限公司 | Transponder data transmission cable |
| CN113035412B (en) * | 2021-02-06 | 2023-02-21 | 安徽铁信光电科技有限公司 | Transponder data transmission cable |
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