CN204794456U - Motor braking device - Google Patents
Motor braking device Download PDFInfo
- Publication number
- CN204794456U CN204794456U CN201520416852.9U CN201520416852U CN204794456U CN 204794456 U CN204794456 U CN 204794456U CN 201520416852 U CN201520416852 U CN 201520416852U CN 204794456 U CN204794456 U CN 204794456U
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- China
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- shell
- electromagnet
- brake sheet
- brake
- end cap
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Abstract
The utility model discloses a motor braking device, include the shell, arrange in electro -magnet, first brake block and friction disc in the shell, electro -magnet and first brake block are located same one side of friction disc, and certain clearance has between electro -magnet and the first brake block, the electro -magnet is kept away from the one end of first brake block is provided with the end cover, the end cover still with the shell is connected, its characterized in that: be equipped with the external screw thread on the outer peripheral face of end cover, the inner peripheral surface of shell, at least and the part that the end cover is connected is equipped with the internal thread, external screw thread and interior screw -thread fit, thus make end cover and shell threaded connection. Through setting end cover and shell to threaded connection for axial relative position between end cover and the shell is adjustable, thus the clearance to between electro -magnet and the brake block that can be convenient adjust, thereby can guarantee the normal operating of motor, can improve the reliability of braking again.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of brake apparatus of motor.
Background technology
There is due to brake the advantages such as rational in infrastructure, easy accessibility, friction area are large, good braking effect, be therefore widely used in all kinds of motor.
Electromotor brake of the prior art, generally comprise brake shell, friction plate, brake block, electromagnet, spring, end cap, armature spindle is socketed with friction plate, and brake block exists certain interval with between electromagnet.During energising, produce magnetic force after electromagnet energising, and the elastic force overcoming spring is by brake block adhesive, friction plate is thrown off with brake block, and rotor rotates freely; After electromagnet power-off, magnetic force disappears, and spring promotes brake block makes friction plate contact with brake block, and contact-making surface produces the object that frictional force plays brake rotors.
But people in use find, above-mentioned this brake, due to brake by shell protect and end cap be fixedly connected with shell, gap between brake block and electromagnet cannot be regulated, gap is too small, affects motor and normally works, and even causes motor rotation blockage to burn out whole electric machine; Excesssive gap can make again braking effect be deteriorated, and has had a strong impact on the use of motor.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art Problems existing, provides a kind of dynamic braking device increasing braking reliability.
The utility model solves the problems of the technologies described above first adopted technical scheme: a kind of dynamic braking device, comprise shell, be placed in the electromagnet in described shell, first brake sheet and friction plate, described electromagnet and first brake sheet are positioned at the same side of described friction plate, and between described electromagnet and first brake sheet, there is certain gap, described electromagnet is provided with end cap away from one end of described first brake sheet, described end cap is also connected with described shell, it is characterized in that: the outer peripheral face of described end cap is provided with external screw thread, the inner peripheral surface of described shell, the part be at least connected with described end cap is provided with internal thread, described external screw thread and screw-internal thread fit, thus described end cap is connected with outer casing screw.
For ease of observing the gap between electromagnet and first brake sheet, thus being convenient to regulate, on described shell, at least, offering opening with described electromagnet near the end of first brake sheet and the equal corresponding position of first brake sheet.After completing for making gap adjustment, be fastenedly connected between end cap and shell, when avoiding motor rotation, end cap screws out in shell, described end cap also comprises securing member, described end cap offers axial fixing hole near described external screw thread place, described securing member is fixed in described fixing hole, has at least a threading path concave and form threaded recess in described external screw thread.
Preferably, also comprise the second brake block, described first brake sheet and the second brake block lay respectively at the relative both sides of described friction plate, thus can increase friction area, optimize braking effect.
The utility model solves the problems of the technologies described above second adopted technical scheme: a kind of dynamic braking device, comprise shell, be placed in the electromagnet in described shell, first brake sheet and friction plate, described electromagnet and first brake sheet are positioned at the same side of described friction plate, and between described electromagnet and first brake sheet, there is certain gap, it is characterized in that: the outer peripheral face away from described first brake sheet one end of described electromagnet is provided with external screw thread, the inner peripheral surface of described shell, the part be at least connected with described electromagnet is provided with internal thread, described external screw thread and screw-internal thread fit, thus described electromagnet is connected with outer casing screw.
For ease of observing the gap between electromagnet and first brake sheet, thus being convenient to regulate, on described shell, at least, offering opening with described electromagnet near the end of first brake sheet and the equal corresponding position of first brake sheet.
Preferably, also comprise the second brake block, described first brake sheet and the second brake block lay respectively at the relative both sides of described friction plate, thus can increase friction area, optimize braking effect.
Compared with prior art, the utility model has the advantage of: by end cap and shell are arranged to be threaded, or electromagnet and shell are arranged to be threaded, make end cap or the relative axial position between electromagnet and shell adjustable, thus can regulate the gap between electromagnet and brake block easily, thus the normal operation of motor can be ensured, the reliability of braking can be improved again; By arranging opening on shell, the gap between electromagnet and brake block can be observed easily, thus be convenient to regulate; By arranging recess on the external screw thread of end cap, and applying pressure in the axial direction by securing member, external screw thread can be made to be clamped by the internal thread of shell, when avoiding motor rotation, end cap screws out in shell.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of brake apparatus of the present utility model first embodiment;
Fig. 2 is the schematic diagram that shell hidden by the brake apparatus of Fig. 1;
Fig. 3 is the schematic diagram of the end cap in Fig. 1;
Fig. 4 is the schematic diagram of the shell in Fig. 1;
Fig. 5 is the schematic diagram of brake apparatus of the present utility model second embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment one
See Fig. 1 ~ Fig. 4, a kind of dynamic braking device, comprises shell 1, the electromagnet 2 be placed in shell 1, first brake sheet 3 and friction plate 4.Electromagnet 2 and first brake sheet 3 are positioned at the side of friction plate 4, and the second brake block 7 is positioned at the opposite side of friction plate 4, and namely first brake sheet 3 is separately positioned on the relative both sides of friction plate 4 with the second brake block 7; First brake sheet 3 between electromagnet 2 and friction plate 4, and has certain gap between electromagnet 2 and first brake sheet 3, and first brake sheet 3 and the second brake block 7 can move axially along shell 1 under the effect of electromagnet 2.The opposite side of friction plate 4 is also provided with rotor 5, and the second brake block 7 is between friction plate 4 and rotor 5, and the armature spindle 51 of rotor 5 connects with friction plate 4.End cap 6 is arranged on electromagnet 2 one end away from first brake sheet 3, and is connected in shell 1, and electromagnet 2 is hollow structure, can arrange spring (not shown) in it.
During energising, produce magnetic force after electromagnet 2 is energized, and the elastic force overcoming spring is by first brake sheet 3 adhesive, friction plate 4 is thrown off with first brake sheet 3, and rotor 5 rotates freely; During power-off, after electromagnet 2 power-off, magnetic force disappears, and spring promotes first brake sheet 3 makes the two sides of friction plate 4 contact with first brake sheet 3, second brake block 7 respectively, and contact-making surface produces the object that frictional force plays brake rotors.The structure of above-mentioned brake apparatus and the identical of prior art, do not repeat them here.
The outer peripheral face of end cap 6 is provided with external screw thread 61, and the inner peripheral surface of shell 1, the part be at least connected with end cap 6 are provided with internal thread 11.Opening 12 is offered with electromagnet 2 near the end of first brake sheet 3 and the equal corresponding position of first brake sheet 3 on shell 1, at least, the gap length between electromagnet 2 and first brake sheet 3 can be seen clearly from this opening 12, therefore, by the degree regulating end cap 6 to screw in shell 1 end, the gap between electromagnet 2 and first brake sheet 3 can be regulated.
End cap 6 is cylindrical, has central shaft hole 62, and it offers axial fixing hole 63 near external screw thread 61 place, and for fixation fastener 64, preferably, fixing hole 63 is screwed hole, and securing member 64 is screw.At least one screw thread of external screw thread 61 concaves to the footpath, central shaft hole 62 direction of end cap 6 and forms threaded recess 65.End cap 6 opposite shell 1 to be rotated and after completing gap adjustment, securing member 63 is fixed in fixing hole 62, at least one internal thread corresponding with threaded recess 65 on the internal thread 11 of shell 1 is made to be pressed in threaded recess 65, internal thread 11 fully compresses by external screw thread 61, thus guarantee the fastening of end cap 6 and shell 1 further, when avoiding motor rotation, end cap 6 screws out from shell 1.
Embodiment two
See Fig. 5, in the present embodiment, be with the difference of above-described embodiment one, in shell 1, end cap 6 is not set, but on the outer peripheral face away from first brake sheet 3 one end of electromagnet 2 ', be provided with external screw thread 21 ', for being connected with the internal thread 11 in shell 1.Can the degree in shell 1 be screwed in by regulating magnet 2 ' thus the gap between electromagnet 2 ' and first brake sheet 3 be regulated.
Claims (7)
1. a dynamic braking device, comprise shell (1), be placed in the electromagnet (2) in described shell (1), first brake sheet (3) and friction plate (4), described electromagnet (2) and first brake sheet (3) are positioned at the same side of described friction plate (4), and between described electromagnet (2) and first brake sheet (3), there is certain gap, described electromagnet (2) is provided with end cap (6) away from one end of described first brake sheet (3), described end cap (6) is also connected with described shell (1), it is characterized in that: the outer peripheral face of described end cap (6) is provided with external screw thread (61), the inner peripheral surface of described shell (1), the part be at least connected with described end cap (6) is provided with internal thread (11), described external screw thread (61) and internal thread (11) coordinate, thus described end cap (6) and shell (1) are threaded.
2. dynamic braking device as claimed in claim 1, is characterized in that: end and the equal corresponding position of first brake sheet (3) of upper, at least close with described electromagnet (2) the first brake sheet (3) of described shell (1) offer opening (12).
3. dynamic braking device as claimed in claim 1 or 2, it is characterized in that: described end cap (6) also comprises securing member (64), described end cap (6) is upper offers axial fixing hole (63) near described external screw thread (61) place, described securing member (64) is fixed in described fixing hole (63), has at least a threading path concave and form threaded recess (65) in described external screw thread (61).
4. dynamic braking device as claimed in claim 1 or 2, it is characterized in that: also comprise the second brake block (7), described first brake sheet (3) and the second brake block (7) lay respectively at the relative both sides of described friction plate (4).
5. a dynamic braking device, comprise shell (1), be placed in the electromagnet (2 ') in described shell (1), first brake sheet (3) and friction plate (4), described electromagnet (2 ') and first brake sheet (3) are positioned at the same side of described friction plate (4), and between described electromagnet (2 ') and first brake sheet (3), there is certain gap, it is characterized in that: the outer peripheral face away from described first brake sheet (3) one end of described electromagnet (2 ') is provided with external screw thread (21 '), the inner peripheral surface of described shell (1), the part be at least connected with described electromagnet (2 ') is provided with internal thread (11), described external screw thread (21 ') and internal thread (11) coordinate, thus described electromagnet (2 ') and shell (1) are threaded.
6. dynamic braking device as claimed in claim 5, is characterized in that: described shell (1) at least offers opening (12) with described electromagnet (2 ') near the end of first brake sheet (3) and the equal corresponding position of first brake sheet (3).
7. the dynamic braking device as described in claim 5 or 6, it is characterized in that: also comprise the second brake block (7), described first brake sheet (3) and the second brake block (7) lay respectively at the relative both sides of described friction plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416852.9U CN204794456U (en) | 2015-06-16 | 2015-06-16 | Motor braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416852.9U CN204794456U (en) | 2015-06-16 | 2015-06-16 | Motor braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794456U true CN204794456U (en) | 2015-11-18 |
Family
ID=54534433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416852.9U Active CN204794456U (en) | 2015-06-16 | 2015-06-16 | Motor braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794456U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092447A (en) * | 2018-02-05 | 2018-05-29 | 东莞市领亚自动化科技有限公司 | A kind of self-locking structure of miniature brushless direct-current motor |
-
2015
- 2015-06-16 CN CN201520416852.9U patent/CN204794456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092447A (en) * | 2018-02-05 | 2018-05-29 | 东莞市领亚自动化科技有限公司 | A kind of self-locking structure of miniature brushless direct-current motor |
| CN108092447B (en) * | 2018-02-05 | 2024-02-13 | 东莞市领亚自动化科技有限公司 | Self-locking structure of miniature brushless direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |