CN202713214U - Direct current motor brake device - Google Patents

Direct current motor brake device Download PDF

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Publication number
CN202713214U
CN202713214U CN 201220240981 CN201220240981U CN202713214U CN 202713214 U CN202713214 U CN 202713214U CN 201220240981 CN201220240981 CN 201220240981 CN 201220240981 U CN201220240981 U CN 201220240981U CN 202713214 U CN202713214 U CN 202713214U
Authority
CN
China
Prior art keywords
output
direct current
block
input block
projection
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.)
Withdrawn - After Issue
Application number
CN 201220240981
Other languages
Chinese (zh)
Inventor
吕嬿
俞锡鹏
侯志成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO BAIXING MACHINERY TECHNOLOGY CO LTD
Original Assignee
NINGBO BAIXING MACHINERY TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO BAIXING MACHINERY TECHNOLOGY CO LTD filed Critical NINGBO BAIXING MACHINERY TECHNOLOGY CO LTD
Priority to CN 201220240981 priority Critical patent/CN202713214U/en
Application granted granted Critical
Publication of CN202713214U publication Critical patent/CN202713214U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a direct current motor brake device which comprises an input part, an output part and a fixed braking part. The direct current motor brake device is characterized in that a first projection is arranged on the braking part; the input part is located above the braking part; the output part is connected with the input part and can axially move relative to the input part; a second projection which axially extends downward is arranged on the side wall of the output part; and the first projection and the second projection at least partially overlap in the axial direction. The output part moves in the axial direction under a centrifugal force, thus the projections of the output part and the braking part overlap or separate. The braking part hinders the rotation of the output part or not, thus braking or actuating is realized. Compared with the previous torsion spring brake mechanism, the direct current motor brake device has the advantages of more simple structure and low requirement for machining precision, thus the success rate of mass production is ensured.

Description

The direct current machine brake gear
Technical field
The utility model relates to a kind of direct current machine, especially a kind of brake gear that is applicable to the direct current machine of little load.
Background technology
The brake gear of traditional motor comprises the mechanical type mode of braking that adopts the frictional force braking between friction plate and the brake mount combination and utilizes the electromagnetic type mode of braking of the attraction braking of rotor field power and pure iron.Wherein, electromagnetic type braking power consumption is larger, often uses to be unfavorable for energy savings, not environmental protection; And mechanical braking, usually adopt torsion spring brake holding mechanism, number be the Chinese patent of CN201985688U such as Granted publication, a kind of tube shaped electric machine with dead-man's device is disclosed, comprise drive source and power transfer unit, be provided with the dead-man's device in a stationary magazine creel in power transfer unit, brake gear is torsion spring brake holding mechanism, comprise driving shaft, driven shaft and brake torsion spring, realize braking by the interference fit between brake torsion spring and the stationary magazine creel.
Above-mentioned this by torsion spring brake holding winding machine braking, to having relatively high expectations of brake gear precision, cause thus the having relatively high expectations of processing technology, the product yields of producing is low, is unfavorable for batch production.
The utility model content
Technical problem to be solved in the utility model provides a kind of direct current machine brake gear simple in structure, easy to process.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of direct current machine brake gear, comprise input block, output block and fixed brake component, it is characterized in that, described brake component is provided with the first projection, described input block is positioned at described brake component top, described output block is connected on the described input block and can moves axially by relatively described input block, described output block sidewall is provided with axial the second projection to downward-extension, and described the first projection and described the second projection are at least part of in the axial direction overlapping.
Has axial protuberance in the middle of the described input block, described protuberance extends in the described output block, the sidewall of described protuberance is provided with the first symmetrical arc-shaped protrusions, the madial wall of described output block is provided with the second symmetrical arc-shaped protrusions, and described the first arc-shaped protrusions and described the second arc-shaped protrusions are crisscross arranged.The first arc-shaped protrusions and the second arc-shaped protrusions are worked in coordination, thus can so that input block and output block when rotating stressed steadily.
Described input block is cylindrical, the upper edge of described input block has consisted of the curved surface that rises and falls by a plurality of arc grooves and arc-shaped protrusions, the upper edge form fit of the lower edge of described output block and described input block is conducive to be convenient to when output block is subject to centrifugal force break away from input block.
Be arranged with the first fixed arm on the sidewall of described input block, be arranged with the second fixed arm on the sidewall of described output block, connect by spring between described first fixed arm of homonymy and the second fixed arm, in order to avoid output block is stressed excessive and throw off from brake gear when input block and output block disengaging.
In an embodiment of the present utility model, the output shaft that wears described direct current machine in the protuberance of described input block is also fastened to each other, and described output block and external loading are fixed.
Compared with prior art, the utility model has the advantage of: be subjected to centrifugal force movement in the axial direction by output block, so that the projection of output block and brake component is overlapping or separate, thereby brake component can hinder or not hinder the rotation of output block, realize braking or activate, than before torsion spring brake holding mechanism, structure is simpler, requirement on machining accuracy is low, thereby can guarantee the success rate produced in batches.
Description of drawings
Fig. 1 is brake gear on-position schematic diagram of the present utility model;
Fig. 2 is brake gear actuating state schematic diagram of the present utility model;
Fig. 3 is brake gear decomposition texture schematic diagram of the present utility model;
Fig. 4 is the schematic diagram of output block of the present utility model.
Embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 3, a kind of direct current machine brake gear, comprise input block 1, output block 2 and brake component 3, wherein input block 1 is fixed with the output shaft 41 of direct current machine 4 or the output shaft of reduction box, 23 of the output shafts of output block 2 and reduction box or external loading such as curtain are fixed, 3 of brake components are fixed and can not rotated, in the present embodiment, input block 1 is fixing with the output shaft 41 of direct current machine 4, and output block 2 is fixed with reduction box, and 3 of brake components and direct current machine 4 stators are fixed.
Brake component 3 is in the form of annular discs, and it is provided with the first projection 31 near the circumferential edges place, to cooperate with output block 2.Input block 1 is positioned on the brake component 3, is provided with axial protuberance 11 in the middle of it, and the output shaft 41 of direct current machine 4 wears in the protuberance 11 and fix, thereby when direct current machine 4 rotation, input block 1 can rotate thereupon.Input block 1 is cylindrical, and its upper edge has a plurality of arc grooves 12 and arc-shaped protrusions 13, in the present embodiment, respectively is three, and arc groove 12 and arc-shaped protrusions 13 have consisted of the curved surface that rises and falls.
Output block 2 is arranged on the input block 1, the upper edge of its lower edge shape and input block 1 coupling, and input block 1 and output block 2 form complete cylindrical thus.Protuberance 11 in the middle of the input block 1, can extend in the output block 2, the sidewall of protuberance 11 is provided with the first symmetrical arc-shaped protrusions 14, the madial wall of output block 2 is provided with the second symmetrical arc-shaped protrusions 24, referring to Fig. 4, the first arc-shaped protrusions 14 and the second arc-shaped protrusions 24 are crisscross arranged, work in coordination, thus can so that input block 1 and output block 2 when rotating stressed steadily.
The sidewall of output block 2 is provided with axially the second projection 21 to downward-extension, and the first projection 31 on itself and the brake component 3 is at least part of in the axial direction overlapping.Be arranged with the first fixed arm 15 on the sidewall of input block 1, be arranged with the second fixed arm 22 on the sidewall of output block 2, be connected with spring 5 between the first fixed arm 15 of homonymy and the second fixed arm 22, in order to avoid output block 2 is stressed excessive and throw off from brake gear when input block 1 and output block 2 breaks away from.
Referring to Fig. 2, when direct current machine 4 normal operation, speed is fast, centrifugal force is larger, input block 1 rotates with direct current machine 4, output block 2 is under the effect of centrifugal force, break away from along the curved surface that rises and falls and input block 1, upwards rise quickly in the axial direction, thus, the first projection 31 and the second projection 21 no longer have lap on axially, spring 5 is stretched simultaneously, two the second arc-shaped protrusions 24 of output block 2 respectively with two the first arc-shaped protrusions 14 side direction butts of input block 1, output block 2 can rotate with the rotation of input block 1 reposefully thus, realizes activating; Referring to Fig. 1, when direct current machine 4 outage, centrifugal force reduces again, output block 2 is under the restoring force effect of spring 5, rotate along the curved surface that rises and falls, move down in the axial direction, get back to the position that coincide with input block 1, at this moment, the first projection 31 and the second projection 21 overlap in the axial direction, and the first projection 31 hinders the rotation of the second projection 21, namely hinder output block 2 and rotate, thereby eliminated the inertia force of direct current machine 4 rotors, realized braking.
The above only is preferred implementation of the present utility model; should be pointed out that for the ordinary skill in the art, do not breaking away under the principle prerequisite of the present utility model; can also make various deformation and improvement, this also should be considered as protection range of the present utility model.

Claims (5)

1. direct current machine brake gear, comprise input block (1), output block (2) and fixed brake component (3), it is characterized in that, described brake component (3) is provided with the first projection (31), described input block (1) is positioned at described brake component (3) top, described output block (2) is connected to described input block (1) upward and can moves axially by relatively described input block (1), described output block (2) sidewall is provided with axial the second projection (21) to downward-extension, and described the first projection (31) and described the second projection (21) are at least part of in the axial direction overlapping.
2. direct current machine brake gear as claimed in claim 1, it is characterized in that, has axial protuberance (11) in the middle of the described input block (1), described protuberance (11) extends in the described output block (2), the sidewall of described protuberance (11) is provided with symmetrical the first arc-shaped protrusions (14), the madial wall of described output block (2) is provided with symmetrical the second arc-shaped protrusions (24), and described the first arc-shaped protrusions (14) and described the second arc-shaped protrusions (24) are crisscross arranged.
3. direct current machine brake gear as claimed in claim 2, it is characterized in that, described input block (1) is cylindrical, the upper edge of described input block (1) has consisted of the curved surface that rises and falls, the upper edge form fit of the lower edge of described output block (2) and described input block (1) by a plurality of arc grooves (12) and arc-shaped protrusions (13).
4. such as each described direct current machine brake gear among the claim 1-3, it is characterized in that, be arranged with the first fixed arm (15) on the sidewall of described input block (1), be arranged with the second fixed arm (22) on the sidewall of described output block (2), connect by spring (5) between described first fixed arm (15) of homonymy and the second fixed arm (22).
5. direct current machine brake gear as claimed in claim 2 or claim 3, it is characterized in that, the output shaft (41) that wears described direct current machine (4) in the protuberance (11) of described input block (1) is also fastened to each other, and described output block (2) is fixed with external loading.
CN 201220240981 2012-05-23 2012-05-23 Direct current motor brake device Withdrawn - After Issue CN202713214U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220240981 CN202713214U (en) 2012-05-23 2012-05-23 Direct current motor brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220240981 CN202713214U (en) 2012-05-23 2012-05-23 Direct current motor brake device

Publications (1)

Publication Number Publication Date
CN202713214U true CN202713214U (en) 2013-01-30

Family

ID=47593476

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220240981 Withdrawn - After Issue CN202713214U (en) 2012-05-23 2012-05-23 Direct current motor brake device

Country Status (1)

Country Link
CN (1) CN202713214U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102684572A (en) * 2012-05-23 2012-09-19 宁波百型机械科技有限公司 DC (direct current) motor brake device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102684572A (en) * 2012-05-23 2012-09-19 宁波百型机械科技有限公司 DC (direct current) motor brake device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C25 Abandonment of patent right or utility model to avoid double patenting
AV01 Patent right actively abandoned

Granted publication date: 20130130

Effective date of abandoning: 20151014