CN107587832A - The gear reduction unit of strap brake block - Google Patents
The gear reduction unit of strap brake block Download PDFInfo
- Publication number
- CN107587832A CN107587832A CN201711071122.XA CN201711071122A CN107587832A CN 107587832 A CN107587832 A CN 107587832A CN 201711071122 A CN201711071122 A CN 201711071122A CN 107587832 A CN107587832 A CN 107587832A
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- CN
- China
- Prior art keywords
- gear
- support
- brake shoes
- reduction unit
- braking mechanism
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- 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.)
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Abstract
The invention discloses a kind of gear reduction unit of strap brake block, including shell, gear mechanism and braking mechanism, casing is outside gear mechanism and braking mechanism, braking mechanism is connected with gear mechanism transmission, braking mechanism is made up of two brake shoes and multiple metal derbies, two brake shoes center symmetric settings, brake shoes are provided with load groove, and metal derby is removably mounted to load in groove.Multiple load grooves are equipped with two brake shoes of braking mechanism, load groove is used to place matched metal derby, metal derby can increase the weight of brake shoes, and then change the braking effect of brake shoes, thus, the weight of the brake shoes of the gear reduction unit of the strap brake block of the present invention can be adjusted according to demand, can meet the needs of different, substantially increase the applicability of braking mechanism.
Description
Technical field
The present invention relates to a kind of deceleration device, more particularly to a kind of gear reduction unit of strap brake block.
Background technology
The brake gear of existing window curtain decelerator is arranged in decelerator mostly, because the space of speed reducer housing has
Limit, the brake gear being built in decelerator are difficult to braking strength and effect is adjusted, and brake gear can be only applied to one
In kind of window curtain decelerator, a kind of decelerator can only control a kind of curtain of weight, when needing using decelerator to another weight
Curtain control when, then need to change brake gear or even change decelerator, cumbersome, limitation is very big.
The content of the invention
It is an object of the invention to provide a kind of gear reduction unit of strap brake block, one of above mentioned problem at least can solve the problem that.
To achieve the above object, according to an aspect of the invention, there is provided a kind of gear reduction unit of strap brake block, bag
Shell, gear mechanism and braking mechanism are included, outside gear mechanism and braking mechanism, braking mechanism connects casing with gear mechanism
Connect, braking mechanism is made up of two brake shoes and multiple metal derbies, two brake shoes center symmetric settings, and brake shoes is provided with negative
Groove is carried, metal derby is removably mounted to load in groove.
Load groove is equipped with two brake shoes of braking mechanism, load groove is used to place matched metal derby,
Metal derby can increase the weight of brake shoes, and then change the braking effect of brake shoes, thus, the weight of brake shoes of the invention
It can according to demand be adjusted, can meet the needs of different, substantially increase the applicability of braking mechanism.
In some embodiments, it is two to load groove.Thus, the weight of brake shoes is then not added with metal derby plus one piece
The three kinds of selections of metal derby plus two blocks of metal derbies, meet the needs of different.
In some embodiments, the bottom center for loading groove is provided with perforate, and the diameter of perforate is less than the diameter of load groove.
Thus, the dismounting to metal derby is easy in the setting of perforate, while can also effectively reduce metal derby and be made an uproar caused by load groove
Sound.
In some embodiments, the inwall of the load groove on brake shoes is provided with raised line, and raised line is circumferentially uniformly distributed in negative
Carry the inwall of groove.Thus, raised line can increase the frictional force of load groove inwall, prevent metal derby rotates when brake shoes works from flying
Go out to load outside groove, while also can further reduce metal derby caused noise in load groove.
In some embodiments, gear mechanism includes first support, the first planetary gear in first support, the
Two supports, the first central gear in second support and the second planetary gear, the 3rd support and on the 3rd support
Second central gear, the first planetary gear engage with the first central gear, and the second planetary gear engages with the second central gear, the
One support, second support and the 3rd support are connected successively.First support, second support are used to support whole gear mechanism,
And the 3rd support is used to support braking mechanism, while it can also realize that the transmission of gear mechanism and braking mechanism is connected.
In some embodiments, the 3rd support is provided with center projection and projection, and brake shoes is provided with fixing hole, projection
It is engaged with fixing hole.Thus, fixing hole can be placed on projection, and it is dismountable with gear mechanism not only to realize braking mechanism
Function, and brake shoes can be rotated around projection is determined, while the position of brake shoes can be also limited, ensure the suitable of braking mechanism
Profit operation.
In some embodiments, the centralized positioning tip and dowel are equipped with first support and second support, center is fixed
The position tip is engaged with the first central gear, the second central gear, and dowel and the first planetary gear, the second planetary gear are homogeneous
Coordinate.Thus, the centralized positioning tip is used for fixed center gear, and dowel is used to fix planetary gear, so as to realize first support,
The mating connection of second support and the 3rd support, ensure the transmission of gear mechanism.
Beneficial effects of the present invention are：Load groove is equipped with two brake shoes of braking mechanism, load groove is used to place
Matched metal derby, metal derby can increase the weight of brake shoes, and then change the braking effect of brake shoes, brake shoes
Weight can be adjusted according to demand, can meet the needs of different, substantially increase the applicability of braking mechanism；The bottom of groove
Face center is provided with perforate, and the dismounting to metal derby is easy in the setting of perforate, while also can effectively reduce metal derby in perforate
Caused noise；The inwall of groove on brake shoes is provided with raised line, can prevent metal derby from being flown out when brake shoes works outside groove, together
When also can further reduce metal derby caused noise in perforate.Therefore, the The gear deceleration utensil of strap brake block of the invention
Have the advantages that braking quality is adjustable, dismounting is easy to adjust, noise is small.
Brief description of the drawings
Fig. 1 is one of structural representation of gear reduction unit of strap brake block of an embodiment of the present invention；
Fig. 2 is the two of the structural representation of the gear reduction unit of the strap brake block of an embodiment of the present invention；
Fig. 3 is the sectional view of the gear reduction unit of strap brake block shown in Fig. 1；
Fig. 4 is the schematic diagram of the braking mechanism of the gear reduction unit of strap brake block shown in Fig. 1；
Fig. 5 is the top view of the braking mechanism of the gear reduction unit of strap brake block shown in Fig. 4.
Embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1~5 schematically show the gear reduction unit of the strap brake block according to one embodiment of the present invention.
As shown in Fig. 1~5, the gear reduction unit of the strap brake block, including shell 1, gear mechanism 2 and braking mechanism 3, outside
Shell 1 is sheathed on outside gear mechanism 2 and braking mechanism 3, and braking mechanism 3 is connected with gear mechanism 2, and braking mechanism 3 is by two
Brake shoes 31 and multiple metal derbies 32 form, two center symmetric settings of brake shoes 31, and brake shoes 31 is provided with multiple load grooves
312, metal derby 32 is removably mounted to load in groove 312.
The braking mechanism 3 of the gear reduction unit of the strap brake block of present embodiment is made up of two brake shoes 31.Brake shoes
31 can rotate generation centrifugal force when decelerator works, and centrifugal force causes brake shoes 31 to expand outwardly the inwall contradicted to shell 1,
The contact with the inwall of shell 1 of brake shoes 31 can produce friction, the rotating speed of shell 1 be effectively reduced, so as to reach brake deceleration
Effect.Wherein, the load groove 312 of the gear reduction unit of the strap brake block of present embodiment is two.On each brake shoes 31
Provided with two load grooves 312, load groove 312 is used to place matched metal derby 32.And metal derby 32 can increase brake
The weight of car block 31, increase brake shoes 31 works caused centrifugal force, and then increases the braking strength of braking mechanism.Due to stopping
Car block 31 is provided with two load grooves 312, and the weight of brake shoes 31 is then not added with metal derby 32 plus one block of metal derby 32 plus two
The 32 3 kinds of selections of block metal derby.Therefore, the weight of the brake shoes of the gear reduction unit with brake shoes of present embodiment can be with
It is adjusted according to demand, can meets the needs of different, substantially increases the applicability of braking mechanism 3.
The bottom center of load groove 312 is provided with perforate 313, and the diameter of perforate 313 is less than the diameter of load groove 312.Perforate
The dismounting to metal derby is easy in 313 setting, while can also effectively reduce metal derby caused noise in load groove 312.
The brake shoes 31 of the gear reduction unit with brake shoes of present embodiment is positive and negative to be installed, the court of perforate 313
Upper or perforate 313 down, although can change the position of drag friction contact, can realize the function of brake.
The inwall of load groove 312 on brake shoes 31 is provided with raised line 314, and raised line 314 is circumferential to be uniformly distributed in load groove 312
Inwall.Raised line 314 can increase the frictional force of the load inwall of groove 312, prevent metal derby 32 from rotating the load that flies out at work
Outside groove 312, while it also can further reduce the caused noise in load groove 312 of metal derby 32.Perforate 313 and raised line 314
Set so that brake shoes 31 has the function of Double-noise-reduction, and too many noise will not be also produced even if the addition for having metal derby 32.
Gear mechanism 2 include first support 21, the first planetary gear 22 in first support 21, second support 23,
The first central gear 24 and the second planetary gear 25, the 3rd support 26 in second support 23 and on the 3rd support 26
The second central gear 27, the first planetary gear 22 engages with the first central gear 24, the second planetary gear 25 and the second center
Gear 27 engages, and first support 21, the support 26 of second support 23 and the 3rd are connected successively.First support 21, second support
23 are used to support whole gear mechanism 2, and the 3rd support 26 is used to support braking mechanism 3, at the same can also realize gear mechanism 2 with
The transmission of braking mechanism 3 is connected.
The inwall of shell 1 is provided with ring gear 11, the first planetary gear 22 of ring gear 11 and gear mechanism 2 and the
The outline tooth of two planetary gears 25 is meshed, the first planetary gear of the gear reduction unit of the strap brake block of present embodiment
22 and second planetary gear 25 be three.Three planetary gears uniformly at intervals around central gear, and respectively with center
Gear drive connects.Thus, the balanced transmission of power can be advantageous to, transmission is relatively steady.
Therefore, in the case where limiting shell 1, the planetary gear of the gear reduction unit of the strap brake block of present embodiment with
The combination of central gear has a variety of, then coordinates three kinds of braking mechanism 3 to select, can be combined into according to different requirements more
The different gear reduction unit of kind slowing effect, meets various demands, simple to operate, substantially increases the strap brake of present embodiment
The applicability of the gear reduction unit of block.
3rd support 26 is provided with center projection 261 and projection 262, projection 262 and the phase of fixing hole 311 on brake shoes 31
Coordinate.The projection 262 of present embodiment is two, and the relative both sides for being located at center projection 261.Fixing hole 311 can be placed on
On projection 262, two brake shoes 31 are symmetrical arranged centered on center projection 261, not only realize braking mechanism 3 and gear mechanism
2 dismountable function of structure, and brake shoes 31 can be rotated around projection 262 is determined, while can also limit the position of brake shoes 31
Put, ensure the trouble-free operation of braking mechanism 3.
The centralized positioning tip 211 and dowel 212, the centralized positioning tip 211 are equipped with first support 21 and second support 23
It is engaged with the first central gear 24, the second central gear 27, the planetary gear 22 of dowel 212 and first, the second planet tooth
Wheel 25 is engaged.The centralized positioning tip 211 is used for fixed center gear, and dowel 212 is used to fix planetary gear, so as to realize
The mating connection of first support 21, the support 26 of second support 23 and the 3rd, ensure the transmission of gear mechanism 2.
In addition, the gear reduction unit of the strap brake block of present embodiment also includes input mechanism 4, input mechanism 4 and gear
Mechanism 2 is flexibly connected.Input mechanism 4 includes input shaft 41 and axle sleeve 42.Input shaft 41 is fixedly connected with axle sleeve 42, in axle sleeve 42
The heart sets through hole 421, and through hole 421 runs through input shaft 41 and axle sleeve 42.First support 21 is provided with bulge-structure 213, through hole 421
It is engaged with bulge-structure 213.Thus, axle sleeve 22 can be placed on outside the bulge-structure 213 of first support 21, so as to realize input
Mechanism 4 is flexibly connected with gear mechanism 2, easy disassembly.
The gear reduction unit of the strap brake block of present embodiment also includes spring 5.Spring 5 is sheathed on outside bulge-structure 213,
Spring 5 is provided with spring terminal 51, and axle sleeve 42 is provided with stopper slot 422, and stopper slot 422 is engaged with spring terminal 51.Due to spring 5
Outwards it is expansion, inwardly to shrink, therefore, the stopper slot 422 on axle sleeve 42 is engaged with spring terminal 51, can cause axle sleeve 42
One-directional rotation, so as to ensure that input mechanism 4 can only be inputted unidirectionally.
The gear reduction unit of the strap brake block of present embodiment also includes end cap 6, and end cap 6 is provided with Elastic buckle 61, outside
Shell 1 is provided with neck 12, and neck 12 is interlocked with Elastic buckle 61.Thus, end cap 6 can prevent that brake shoes 31 from flying out deceleration
Device, the cooperation easy disassembly end cap 6 of Elastic buckle 61 and neck 12.
One end of shell 1 is provided with mounting hole 13, and mounting hole 13 is engaged with the input shaft 41 of input mechanism 4, outside shell 1
One end of wall is provided with annular knurl 14, and annular knurl 14 can be stuck in the inwall of the main shaft with roller shutter, so as to realize consolidating for shell 1 and main shaft
Fixed connection, completes output.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (7)
1. the gear reduction unit of strap brake block, it is characterised in that including shell (1), gear mechanism (2) and braking mechanism (3), institute
State shell (1) and be sheathed on gear mechanism (2) and braking mechanism (3) outside, the braking mechanism (3) connects with gear mechanism (2) transmission
Connect, the braking mechanism (3) is made up of two brake shoes (31) and multiple metal derbies (32), described two brake shoes (31) centers
It is symmetrical arranged, the brake shoes (31) is provided with load groove (312), and the metal derby (32) is removably mounted to load groove
(312) in.
2. the gear reduction unit of strap brake block according to claim 1, it is characterised in that the load groove (312) is two
It is individual.
3. the gear reduction unit of strap brake block according to claim 1, it is characterised in that the bottom of the load groove (312)
Face center is provided with perforate (313), and the diameter of the perforate (313) is less than the diameter of load groove (312).
4. the gear reduction unit of the strap brake block according to claim 1 or 3, it is characterised in that on the brake shoes (31)
The inwall of load groove (312) be provided with raised line (314), the raised line (314) is circumferentially uniformly distributed in the interior of load groove (312)
Wall.
5. the gear reduction unit of strap brake block according to claim 1, it is characterised in that the gear mechanism (2) includes
First support (21), the first planetary gear (22) in first support (21), second support (23), located at second support
(23) the first central gear (24) and the second planetary gear (25), the 3rd support (26) on and on the 3rd support (26)
Second central gear (27), first planetary gear (22) are engaged with the first central gear (24), second planetary gear
(25) engaged with the second central gear (27), the first support (21), second support (23) and the 3rd support (26) are matched somebody with somebody successively
Close connection.
6. the gear reduction unit of strap brake block according to claim 5, it is characterised in that set on the 3rd support (26)
There are center projection (261) and projection (262), the brake shoes 31 is provided with fixing hole (311), and the projection (262) is with fixing
Hole (311) is engaged.
7. gear reduction unit according to claim 5, it is characterised in that the first support (21) and second support (23)
On be equipped with the centralized positioning tip (211) and dowel (212), the centralized positioning tip (211) and the first central gear (24), the
Two central gears (27) are engaged, and the dowel (212) and the first planetary gear (22), the second planetary gear (25) are homogeneous
Coordinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071122.XA CN107587832A (en) | 2017-11-03 | 2017-11-03 | The gear reduction unit of strap brake block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071122.XA CN107587832A (en) | 2017-11-03 | 2017-11-03 | The gear reduction unit of strap brake block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107587832A true CN107587832A (en) | 2018-01-16 |
Family
ID=61044098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711071122.XA Withdrawn CN107587832A (en) | 2017-11-03 | 2017-11-03 | The gear reduction unit of strap brake block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107587832A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03107089A (en) * | 1989-09-20 | 1991-05-07 | Metako:Kk | Braking device for roll screen |
| KR200439469Y1 (en) * | 2007-02-21 | 2008-04-14 | 김정민 | Roll Blind |
| JP2008125574A (en) * | 2006-11-17 | 2008-06-05 | Sanko Shoji Kk | Speed reducer of rotary shaft |
| WO2008075634A1 (en) * | 2006-12-18 | 2008-06-26 | Nichibei Co., Ltd. | Reduction gear for blind |
| CN202031464U (en) * | 2011-03-07 | 2011-11-09 | 崔文茂 | Reel reduction gear for invisible screen |
| CN203978250U (en) * | 2014-07-15 | 2014-12-03 | 王芳明 | A kind of roller shutter reducer |
| DE102013221419A1 (en) * | 2013-10-09 | 2015-04-09 | Michael Müller | Sight / sun or fly protection and centrifugal brake with freewheel for a sight / sun or fly protection |
| CN207377473U (en) * | 2017-11-03 | 2018-05-18 | 佛山市南海区金沙朗丽斯窗饰制品厂（普通合伙） | The gear reduction unit of strap brake block |
-
2017
- 2017-11-03 CN CN201711071122.XA patent/CN107587832A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03107089A (en) * | 1989-09-20 | 1991-05-07 | Metako:Kk | Braking device for roll screen |
| JP2008125574A (en) * | 2006-11-17 | 2008-06-05 | Sanko Shoji Kk | Speed reducer of rotary shaft |
| US20100018655A1 (en) * | 2006-12-08 | 2010-01-28 | Nichibei Co., Ltd. | Braking Apparatus for Blind |
| WO2008075634A1 (en) * | 2006-12-18 | 2008-06-26 | Nichibei Co., Ltd. | Reduction gear for blind |
| CN101583772A (en) * | 2006-12-18 | 2009-11-18 | 日米株式会社 | Reduction gear for blind |
| KR200439469Y1 (en) * | 2007-02-21 | 2008-04-14 | 김정민 | Roll Blind |
| CN202031464U (en) * | 2011-03-07 | 2011-11-09 | 崔文茂 | Reel reduction gear for invisible screen |
| DE102013221419A1 (en) * | 2013-10-09 | 2015-04-09 | Michael Müller | Sight / sun or fly protection and centrifugal brake with freewheel for a sight / sun or fly protection |
| CN203978250U (en) * | 2014-07-15 | 2014-12-03 | 王芳明 | A kind of roller shutter reducer |
| CN207377473U (en) * | 2017-11-03 | 2018-05-18 | 佛山市南海区金沙朗丽斯窗饰制品厂（普通合伙） | The gear reduction unit of strap brake block |
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| 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180116 |