CN104989745B - Low-torque protection torque transmission structure and low-torque protection opening instrument - Google Patents
Low-torque protection torque transmission structure and low-torque protection opening instrument Download PDFInfo
- Publication number
- CN104989745B CN104989745B CN201510394335.0A CN201510394335A CN104989745B CN 104989745 B CN104989745 B CN 104989745B CN 201510394335 A CN201510394335 A CN 201510394335A CN 104989745 B CN104989745 B CN 104989745B
- Authority
- CN
- China
- Prior art keywords
- torque
- gear ring
- spool shaft
- active
- driven
- 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.)
- Active
Links
Abstract
The invention belongs to the field of torque transmission protection structures, and provides a low-torque protection torque transmission structure and a corresponding low-torque protection opening instrument. The low-torque protection torque transmission structure can rapidly lock torque transmission when the transmission torque is low. Correspondingcomponents such as a cascade flywheel, a locking cam and springs are arranged, and a corresponding fixedly-arranged end cover structure is additionally arranged. When the transmission torque is rapidly decreased due to the fact that an emergent abnormal condition happens in the normal torque transmission process, the axial thrust to the locking camgenerated by the matchingof an inclined face of a second driving gear ring and an inclined face of a second driven gear ring is rapidly decreased, and the spring pushes the locking cam to axially move, so that adriving locking structure and adriven locking structure on the end cover are clamped so as to achieve the rapid locking effect. According to the low-torque protection torque transmission structure, the transmission torque is used as the locking signal control quantity, so that the torque transmission is rapidly locked when the torque is low or after a rope is broken, and safety accidents are more rapidly and effectively avoided in time.
Description
Technical field
The present invention relates to torque transmission protection structure field, more particularly to a kind of low torque protection torque transmission structure and
Aperture instrument is protected using the low torque of the structure.
Background technology
Aperture instrument, is typically also called opening self-detective instrument or gatage detector, is mainly used in various rivers, water
The device that the gatage in storehouse, power station and supply and discharge Hydraulic Projects is measured.But after it there is disconnected rope in existing aperture instrument,
Because the pulling force of steel wire rope rapidly goes to zero, output torque is reduced suddenly, and scroll spring will be with movable reel quick rotation, whole instrument
Device will be destroyed by serious；In order to play corresponding protective effect when there is disconnected rope, need after disconnected rope in time by reel
Locking, destroys oil cylinder inner wall or breaks the generation of the accidents such as piston rod when preventing steel wire rope from quickly reclaiming.In Publication No.
Disclose in the Chinese patent of CN2893654Y it is a kind of after disconnected rope reclaim steel wire rope using spool turns during produce
Angular speed throws the structure that ratchet mesh ratchet gear realizes breaking rope protecting away, but because it adopts what velocity of rotation was fed back as signal
Controlled quentity controlled variable, that is, only after the velocity of rotation of reel reaches certain value, corresponding ratchet just can be thrown out of, and realize corresponding
Locking effect；Therefore it haves the shortcomings that breaking rope protecting reaction is slow, while in locking, because reel has had certain turning
Dynamic speed, therefore in locking moment, larger percussion will be produced.
The content of the invention
Present invention solves the technical problem that be to provide it is a kind of transmit torque it is relatively low when can rapidly torque lock transmit it is low
Torque transmission structure is protected in torque, and using the low torque protection aperture instrument of the mechanism；Can when there is disconnected rope in aperture instrument, and
Shi Suoding reels, it is to avoid cause the damage of relevant device.
The technical solution adopted for the present invention to solve the technical problems is：Low torque protects torque transmission structure, including string
Connection flywheel, locking cam, spool shaft, spring and the end cap being fixedly installed；The series connection flywheel is coaxially disposed with spool shaft；It is described
Locking cam be arranged on series connection flywheel and spool shaft between, and respectively with connect flywheel and spool shaft transmission cooperation；The lock
Determining the relative series connection flywheel of cam only can axially move, and the spring is arranged between series connection flywheel and locking cam；In reel
The second driven gear ring is provided with axle, the second active gear ring is correspondingly arranged on the second driven gear ring on locking cam, it is described
Second active gear ring and the second driven gear ring are inclined-plane cooperation；It is provided with wall corresponding with locking cam on end cap driven
Latch-up structure, is provided with active lock structure, the active lock structure and above-mentioned driven latch-up structure pair on locking cam
Should coordinate, when locking cam is moved to active lock structure is engaged with driven latch-up structure, the spring is in compression shape
State or nature.
It is further：Side corresponding with locking cam is provided with the first active gear ring on series connection flywheel, in locking
Above-mentioned first active gear ring respective side is provided with the first driven gear ring, the first active gear ring and the first driven tooth on cam
Enclose as male-female engagement.
It is further：The driven latch-up structure be with spool shaft axis as the equally distributed double wedge of rotary shaft, it is described
Active lock structure is the latch being arranged in series connection flywheel circumference.
It is further：Each teeth groove in the second active gear ring includes active bevel phase and active step section, institute
Each teeth groove stated in the second driven gear ring includes driven bevel phase and driven step section, the active bevel phase and driven inclined-plane
Section correspondence, the active step section is corresponding with driven step section.
In addition, the present invention also provides a kind of low torque protection aperture instrument, including housing, scroll spring support, scroll spring
And reel；Also include that above-mentioned low torque protects torque transmission structure, the end cap to be arranged on housing；One end of the spool shaft
Rotatably it is arranged on housing by bearing, its other end is rotatably arranged on end cap by bearing；The drum sheath
It is fixedly connected in spool shaft and with spool shaft；The scroll spring support is fixedly mounted on housing；The scroll spring peace
It is mounted on scroll spring support, and scroll spring coordinates with flywheel of connecting.
It is further：The series connection flywheel is rotatably enclosed within spool shaft；The locking cam is rotatably enclosed within
In spool shaft, and can move axially along spool shaft；The second driven gear ring is arranged on one end of spool shaft, the lock tab
Wheel is located at the second driven gear ring and connects between flywheel.
The invention has the beneficial effects as follows：In low torque of the present invention protection torque transmission structure, work as driving torque
It is oblique with the second driven gear ring by the second active gear ring when suddenly becoming relatively low by normal condition, or when suddenly becoming zero
Face coordinates the thrust to locking cam for producing to reduce rapidly, and spring force is more than above-mentioned thrust, therefore spring promotes lock tab
Wheel, makes the active lock structure on locking cam engage with the driven latch-up structure on end cap, and with this quickly locking effect is realized
Really.When there is disconnected rope, driving torque is reduced rapidly low torque protection aperture instrument of the present invention, by the second active gear ring
The thrust to locking cam for producing is coordinated to reduce rapidly with the inclined-plane of the second driven gear ring, spring force is more than above-mentioned thrust,
Therefore spring promotes locking cam, the active lock structure on locking cam is engaged with the driven latch-up structure on end cap, by
The locking of this realization series connection flywheel, spool shaft, reel etc. to locking cam and accordingly, makes series connection flywheel, spool shaft, reel
Etc. stopping operating, it is to avoid due to it is quick reclaim steel wire rope when cause the damage of relevant device.In addition, by further that series connection is winged
Wheel and locking cam can to greatest extent reduce the overall structure size of aperture instrument using the structure being set in spool shaft.By
In the present invention by driving torque as locking signal controlled variable, therefore when torque is relatively low or occur can be rapid after disconnected rope
Make a response, reel is locked in time, can more in time, fast and effectively avoid the generation of security incident.
Description of the drawings
Fig. 1 is the explosive view of end cap in the present invention, spool shaft, series connection flywheel and each part of locking cam；
Fig. 2 is the 3-D view of this locking cam；
Fig. 3 is the 3-D view of spool shaft；
Fig. 4 is the 3-D view of series connection flywheel；
Fig. 5 is the sectional view of the present invention；
Fig. 6 is the enlarged diagram of regional area I in Fig. 5；
Locking cam radial development structure chart when Fig. 7 is normal delivery nominal torque；
Locking cam radial development structure chart when Fig. 8 is to transmit low torque；
It is labeled as in figure：Housing 1, driven latch-up structure 11, scroll spring support 2, scroll spring 3, reel 4, spool shaft
5th, the second driven gear ring 51, dynamic bevel phase 511, driven step section 512, series connection flywheel 6, the first active gear ring 61, locking cam
7th, the first driven gear ring 71, the second active gear ring 72, active bevel phase 721, active step section 722, active lock structure 73, bullet
Spring 8, end cap 9, bearing 10, steel wire rope 101.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is further described.
As shown in Figures 1 to 8, low torque of the present invention protects torque transmission structure, including series connection flywheel 6, locking
Cam 7, spool shaft 5, spring 8 and the end cap 9 being fixedly installed；The series connection flywheel 6 is coaxially disposed with spool shaft 5；The locking
Cam 7 be arranged on series connection flywheel 6 and spool shaft 5 between, and respectively with connect flywheel 6 and spool shaft 5 transmission cooperation；The lock
Determining the relative series connection flywheel 6 of cam 7 only can axially move, and the spring 8 is arranged between series connection flywheel 6 and locking cam 7；
The second driven gear ring 51 is provided with spool shaft 5, second is correspondingly arranged on actively with the second driven gear ring 51 on locking cam 7
Gear ring 72, the driven gear ring 51 of the second active gear ring 72 and second is inclined-plane cooperation；It is corresponding with locking cam 7 on end cap 9
Wall at be provided with driven latch-up structure 11, be provided with active lock structure 73 on locking cam 7, the active lock knot
Structure 73 and the above-mentioned corresponding matching of driven latch-up structure 11, active lock structure 73 is made with driven locking when locking cam 7 is moved to
When structure 11 engages, the spring 8 is in compressive state or nature.
The operation principle of above-mentioned low torque protection torque transmission structure is as follows, and it is divided into two kinds of working conditions, and the first is
State during normal driving torque：As shown in fig. 7, working as in the case of transmission normal torque, the second driven tooth in spool shaft 5
Circle 51 with second active gear ring 72 by inclined-plane coordinate, and due to normal torque transmission, therefore, inclined-plane cooperation when second from
51 pairs of the second active gear rings 72 of dynamic gear ring produce axial thrusts, the axial thrust overcome make after the elastic force of spring 8 locking cam 7 to
Move left, now active lock structure 73 and driven latch-up structure 11 are separated position, therefore flywheel 6 of connecting passes through locking cam
7 are capable of achieving to be driven with the normal torque of spool shaft 5.Second be low torque when state：As shown in figure 8, working as some special works
When condition occurs, when driving torque is dropped suddenly to compared with low torque by normal condition, the steel wire rope 101 of the aperture instrument such as in the present invention breaks
When splitting, i.e., the axial thrust produced with the inclined-plane between the second driven gear ring 51 and the second active gear ring 72 is not enough to overcome
During the elastic force of spring 8, spring 8 promotes locking cam 7 to move right, and now active lock structure 73 will be with driven latch-up structure 11
Intermeshing coordinates, and is achieved in the locking to locking cam 7 and corresponding series connection flywheel 6 and spool shaft 5 etc., now locks
Cam 7, series connection flywheel 6 and spool shaft 5 etc. will stop operating.
From upper analysis, in the present invention, after transmission torque is less than certain value, that is, when the second driven gear ring 51
When coordinating the axial thrust for producing to be not enough to overcome the elastic force of spring 8 with the inclined-plane between the second active gear ring 72, will occur
Lock condition so that spool shaft 5 cannot be rotated further.Also, further can draw, it is big by the elastic force for adjusting spring 8
It is little, the threshold values of the minimum transmission torque of lock condition can correspondingly occur, therefore, when spring 8 is chosen, should be with reference to actual
Result of calculation is selected.
In addition, the relative series connection flywheel 6 of locking cam of the present invention 7 only can axially move, locking cam 7 is referred to
Can only pass through the flexible movement carried out on axial direction of spring 8 relative to series connection flywheel 6, and must not relatively rotate, that is, lock
Determine cam 7 to keep rotating simultaneously all the time with flywheel 6 of connecting, to realize the transmission of torque.As for locking cam 7 and flywheel of connecting
6 concrete matching relationship, can adopt various structures, the fit structure of guide rail and respective slide slots can such as be adopted, as long as guaranteeing locking
Cam 7 is axially movable, while and can not rotate relative to series connection flywheel 6.General, following structure can be adopted：In series connection
The corresponding side of locking cam 7 is provided with the first active gear ring 61 on flywheel 6, on locking cam 7 with above-mentioned first actively
The respective side of gear ring 61 is provided with the first driven gear ring 71, and the first active gear ring 61 is matched somebody with somebody with the first driven gear ring 71 for concavo-convex
Close.
Above-mentioned, the first active gear ring 61 of indication of the present invention and the first driven gear ring 71 are male-female engagement, are specifically referred to, two
It is intermeshing relation that person is actual, to guarantee effective transmission of torque and the axial movement of locking cam 7；As for specific recessed
Male structure is not limited, and can refer to structure shown in accompanying drawing.Certainly, knowable to above-mentioned analysis, the mesh volume both it should be more than
The axial internal clearance of locking cam 7.
Certainly, though normal delivery torque or occur lock situation when, above-mentioned first active gear ring 61 and first
The active gear ring 72 of driven gear ring 71 and second and the second driven gear ring 51 should remain intermeshing situation, also
It is that spool shaft 5, series connection flywheel 6 should keep the consistent of rotation situation with the three of locking cam 7, i.e., rotates simultaneously or while lock
It is fixed；It is therefore desirable to mesh volume of the axial internal clearance of corresponding locking cam 7 less than corresponding gear ring, with specific reference to actual conditions
Set.
In addition, in the present invention driven latch-up structure 11 may be configured as it is equally distributed convex by rotary shaft of the axis of spool shaft 5
Tooth, while active lock structure 73 is the latch being arranged in the series connection circumference of flywheel 6；As for double wedge and the quantity of corresponding latch
It is general unrestricted, as long as the two guarantees corresponding meshing relation.Certainly, other may also be employed and is capable of achieving similar effect
Structure.
The second active gear ring 72 and the second driven gear ring 51 of indication of the present invention is inclined-plane cooperation, and it specifically can refer to attached
Figure, so-called inclined-plane coordinates, and refers in the second active gear ring 72 and the second driven gear ring 51 when torque transmission is carried out, by oblique
Face is engaged, and can produce axial thrust, and passes through the size of the thrust and the elastic force of spring 8 is interacted, and realizes
Axial movement to locking cam 7；When elastic force of the thrust more than spring 8, spring 8 is compressed, and locking cam 7 is to the side of spring 8
It is mobile；When elastic force of the thrust less than spring 8, spring 8 extends, and locking cam 7 pushes opposite side to by spring 8.Certainly, equally
, the mesh volume of the second active gear ring 72 and the second driven gear ring 51 should also be as the axial internal clearance more than locking cam 7；Also
It is that the second active gear ring 72 should remain the situation of engagement with the second driven gear ring 51, it is ensured that locking cam 7 and spool shaft 5
Torque is transmitted.Certainly, it is contemplated that the second active gear ring 72 and the second driven gear ring 51 are that inclined-plane coordinates, therefore, actually lock
Cam 7 can relatively rotate with spool shaft 5 in the range of certain angle, and certainly, the angle value of the relative rotation is generally less,
Typically about or so several years.
In addition, coordinating the axial thrust to locking cam 7 for producing, its size to be coordinated by inclined-plane by inclined-plane in theory
The impact of angular dimension and transmission level of torque；Design parameter, can be according to actual conditions depending on.As for the setting on above-mentioned inclined-plane
Position and setting direction, generally require according to depending on the direction of driving torque and the rotation direction of corresponding component.
In addition, in order to ensure normal transmission torque, can further by each teeth groove in the second active gear ring 72
Including active bevel phase 721 and active step section 722, each teeth groove in the second driven gear ring 51 includes driven bevel phase
511 and driven step section 512, the active bevel phase 721 is corresponding with driven bevel phase 511, the active step section 722 with from
The correspondence of dynamic step section 512.Specifically can refer to shown in accompanying drawing 7 and Fig. 8, the benefit for so arranging is in normal delivery torque the
The meshing relation of two active gear rings 72 and the second driven gear ring 51 is situation shown in Fig. 7, now the axial internal clearance of locking cam 7
Reach the limit values, the axial thrust to locking cam 7 that active bevel phase 721 is produced with the cooperation of driven bevel phase 511 will not be again
Further increase, it is to avoid the further increase of energy consumption, also, now between the second active gear ring 72 and the second driven gear ring 51
The acting surface of transmission torque mainly by active step section 722 and driven step section 512 be pressed into contact with realize, while the seal face
Between pressure will not produce axial thrust load, it is ensured that effective transmission of torque.
Low torque of the present invention protects torque transmission structure, can be used in theory various in transmission low torque feelings
During structure to be protected is needed under condition, such as can be used on shaft coupling, corresponding series connection flywheel 6 and spool shaft 5 corresponding two need respectively
The axle of torque, and locking cam 7 are transmitted then as the connector of driving torque between the two, while increasing in shaft coupling periphery
It is fixedly installed and acts on identical fixture with end cap 9, the locking to locking cam 7 is realized by fixture, and then realizes to turning
The locking of square transmission.
Certainly, the present invention especially can use with aperture instrument, and by by low torque protect torque transmission structure fortune
After on aperture instrument, the low torque protection aperture instrument of the following present invention is obtained, it includes housing 1, scroll spring support 2, whirlpool
Coil spring 3 and reel 4；Also include that above-mentioned low torque protects torque transmission structure, the end cap 9 to be arranged on housing 1；The volume
One end of cylinder axle 5 is rotatably arranged on housing 1 by bearing 10, and its other end is rotatably arranged on end by bearing 10
On lid 9；The reel 4 is enclosed within spool shaft 5 and is fixedly connected with spool shaft 5；The scroll spring support 2 is fixedly mounted on shell
On body 1；The scroll spring 3 is arranged on scroll spring support 2, and scroll spring 3 coordinates with the transmission of flywheel 6 of connecting.This
Sample by by low torque of the present invention protection torque transmission structure be cleverly arranged in aperture instrument, when the steel on aperture instrument
When cord 101 ruptures, transmission torque is reduced rapidly, and corresponding active lock structure 73 is nibbled rapidly with driven latch-up structure 11
Close locking total so that reel 4 stops operating, it is to avoid because the recovery of scroll spring 3 is acted on after the fracture of steel wire rope 101
Cause the damage to equipment.
In addition, as shown in figure 5, with reference to the design feature of aperture instrument, the present invention further rotatably covers series connection flywheel 6
In spool shaft 5；The locking cam 7 is rotatably enclosed within spool shaft 5, and can be moved axially along spool shaft 5；Described
Two driven gear rings 51 are arranged on one end of spool shaft 5, the locking cam 7 be located at the second driven gear ring 51 with connect flywheel 6 it
Between.So, you can by aperture instrument do it is relatively thin, while and the support that directly moved axially as locking cam 7 by the use of spool shaft 5
And guide, realize the further simplification to connection member so that overall structure is compacter.
Claims (6)
1. low torque protects torque transmission structure, it is characterised in that：Including series connection flywheel (6), locking cam (7), spool shaft
(5), spring (8) and the end cap (9) that is fixedly installed；Series connection flywheel (6) is coaxially disposed with spool shaft (5)；The lock tab
Wheel (7) is arranged between series connection flywheel (6) and spool shaft (5), and is driven with flywheel of connecting (6) and spool shaft (5) matches somebody with somebody respectively
Close；The relative series connection flywheel (6) of the locking cam (7) only can axially move, and the spring (8) is arranged on series connection flywheel (6)
Between locking cam (7)；The second driven gear ring (51) is provided with spool shaft (5), on locking cam (7) with second from
Dynamic gear ring (51) is correspondingly arranged on the second active gear ring (72), and the second active gear ring (72) is with the second driven gear ring (51)
Inclined-plane coordinates；Driven latch-up structure (11) is provided with wall corresponding with locking cam (7) on end cap (9), in lock tab
Active lock structure (73) is provided with wheel (7), the active lock structure (73) is corresponding with above-mentioned driven latch-up structure (11)
Coordinate, when locking cam (7) is moved to active lock structure (73) is engaged with driven latch-up structure (11), the spring
(8) in compressive state or nature.
2. low torque as claimed in claim 1 protects torque transmission structure, it is characterised in that：With lock in series connection flywheel (6)
Determine the corresponding side of cam (7) and be provided with the first active gear ring (61), with above-mentioned first active gear ring on locking cam (7)
(61) respective side is provided with the first driven gear ring (71), and the first active gear ring (61) is concavo-convex with the first driven gear ring (71)
Coordinate.
3. low torque as claimed in claim 1 protects torque transmission structure, it is characterised in that：The driven latch-up structure (11)
It is that, with spool shaft (5) axis as the equally distributed double wedge of rotary shaft, the active lock structure (73) is to be arranged on series connection flywheel
(6) latch in circumference.
4. the low torque as described in claim 1,2 or 3 protects torque transmission structure, it is characterised in that：Second driving tooth
Each teeth groove in circle (72) is included in active bevel phase (721) and active step section (722), the second driven gear ring (51)
Each teeth groove include driven bevel phase (511) and driven step section (512), the active bevel phase (721) and driven inclined-plane
Section (511) correspondence, the active step section (722) is corresponding with driven step section (512).
5. low torque protects aperture instrument, including housing (1), scroll spring support (2), scroll spring (3) and reel (4)；It is special
Levy and be：Also include the low torque protection torque transmission structure any one of the claims 1 to 4, the end cap (9)
On housing (1)；One end of the spool shaft (5) is rotatably arranged on housing (1) by bearing (10), and its is another
End is rotatably arranged on end cap (9) by bearing (10)；The reel (4) be enclosed within spool shaft (5) and with spool shaft (5)
It is fixedly connected；The scroll spring support (2) is fixedly mounted on housing (1)；The scroll spring (3) is installed in scroll spring
On support (2), and scroll spring (3) coordinates with flywheel of connecting (6) transmission.
6. low torque as claimed in claim 5 protects aperture instrument, it is characterised in that：Series connection flywheel (6) rotatably covers
In spool shaft (5)；The locking cam (7) is rotatably enclosed within spool shaft (5), and can axially be moved along spool shaft (5)
It is dynamic；The second driven gear ring (51) is arranged on one end of spool shaft (5), and the locking cam (7) is positioned at the second driven gear ring
(51) between flywheel of connecting (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394335.0A CN104989745B (en) | 2015-07-07 | 2015-07-07 | Low-torque protection torque transmission structure and low-torque protection opening instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394335.0A CN104989745B (en) | 2015-07-07 | 2015-07-07 | Low-torque protection torque transmission structure and low-torque protection opening instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989745A CN104989745A (en) | 2015-10-21 |
| CN104989745B true CN104989745B (en) | 2017-05-10 |
Family
ID=54301607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510394335.0A Active CN104989745B (en) | 2015-07-07 | 2015-07-07 | Low-torque protection torque transmission structure and low-torque protection opening instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989745B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3548225B1 (en) | 2016-11-30 | 2022-03-09 | Saint-Gobain Performance Plastics Rencol Limited | Adjustable torque assembly |
| CN115554628B (en) * | 2022-09-16 | 2023-07-21 | 中煤第三建设（集团）有限责任公司 | Safety rope fixing structure for building construction |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960035A (en) * | 1974-11-01 | 1976-06-01 | Gardner-Denver Company | Torque responsive speed shifting mechanism for power tool |
| US4327821A (en) * | 1979-10-25 | 1982-05-04 | Warn Industries, Inc. | Automatic locking clutch with sliding clutch ring |
| US4369868A (en) * | 1980-08-25 | 1983-01-25 | Dualmatic Manufacturing Company | Automatic clutch for four-wheel drive vehicles |
| CN2893654Y (en) * | 2006-04-06 | 2007-04-25 | 武汉华之洋光电系统有限责任公司 | External aperture instrument |
| WO2008027071A1 (en) * | 2006-08-30 | 2008-03-06 | Team Industries, Inc. | Disconnect |
| CN100522495C (en) * | 2004-12-07 | 2009-08-05 | 罗伯特·博世有限公司 | Hand machine tool in torque limiting unit |
| CN201314345Y (en) * | 2008-12-21 | 2009-09-23 | 洪涛 | Self-supporting separation retaining mechanism of axial automatic-control clutch |
| CN202790188U (en) * | 2012-07-05 | 2013-03-13 | 上海科勒电子科技有限公司 | Overload protection transmission mechanism |
| CN104746485A (en) * | 2015-03-05 | 2015-07-01 | 刘彩 | Water gate opening degree monitoring device |
| CN204755660U (en) * | 2015-07-07 | 2015-11-11 | 中国电建集团成都勘测设计研究院有限公司 | Torque transmission structure and aperture appearance |
-
2015
- 2015-07-07 CN CN201510394335.0A patent/CN104989745B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3960035A (en) * | 1974-11-01 | 1976-06-01 | Gardner-Denver Company | Torque responsive speed shifting mechanism for power tool |
| US4327821A (en) * | 1979-10-25 | 1982-05-04 | Warn Industries, Inc. | Automatic locking clutch with sliding clutch ring |
| US4369868A (en) * | 1980-08-25 | 1983-01-25 | Dualmatic Manufacturing Company | Automatic clutch for four-wheel drive vehicles |
| CN100522495C (en) * | 2004-12-07 | 2009-08-05 | 罗伯特·博世有限公司 | Hand machine tool in torque limiting unit |
| CN2893654Y (en) * | 2006-04-06 | 2007-04-25 | 武汉华之洋光电系统有限责任公司 | External aperture instrument |
| WO2008027071A1 (en) * | 2006-08-30 | 2008-03-06 | Team Industries, Inc. | Disconnect |
| CN201314345Y (en) * | 2008-12-21 | 2009-09-23 | 洪涛 | Self-supporting separation retaining mechanism of axial automatic-control clutch |
| CN202790188U (en) * | 2012-07-05 | 2013-03-13 | 上海科勒电子科技有限公司 | Overload protection transmission mechanism |
| CN104746485A (en) * | 2015-03-05 | 2015-07-01 | 刘彩 | Water gate opening degree monitoring device |
| CN204755660U (en) * | 2015-07-07 | 2015-11-11 | 中国电建集团成都勘测设计研究院有限公司 | Torque transmission structure and aperture appearance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989745A (en) | 2015-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2459988C2 (en) | Actuator containing overload protection device and designed for actuation of annular gear | |
| CN104989745B (en) | Low-torque protection torque transmission structure and low-torque protection opening instrument | |
| CN104415485A (en) | Fire extinguishing gun turret | |
| CN204755660U (en) | Torque transmission structure and aperture appearance | |
| US4245729A (en) | Safety shaft coupling | |
| CN103924920B (en) | Drilling tool is with brill safety device | |
| CN204871541U (en) | Release under water with two kinds of trigger modes of pure mechanical timer and depthkeeping | |
| CN106351594B (en) | Closed hydraulic tongs | |
| CN208651471U (en) | A kind of unidirectional torque overload protective device | |
| RU2617608C2 (en) | Device and method for interlocking system | |
| CN105668440B (en) | One kind can add damp type hoist engine and its application method | |
| CN208749291U (en) | Anti- transmission shaft with overload protection reverses helicoid hydraulic motor | |
| CN208631996U (en) | Explosion-proof electric block lifting mechanism safety catch | |
| CN207316014U (en) | A kind of antioverloading protects deceleration device | |
| CN108868587A (en) | Anti- transmission shaft with overload protection reverses helicoid hydraulic motor | |
| CN106050977A (en) | Novel sliding block type bidirectional overrunning clutch | |
| CN113062934B (en) | Shield constructs owner and drives speed reducer overload protection ware and shield constructs machine | |
| JP2008502853A (en) | Fluid coupling with rotational speed protection mechanism and dual turbo system | |
| CN205841564U (en) | Novel slide block type double rolling key clutch | |
| CN210421022U (en) | Hand-operated device of hoist | |
| CN210637059U (en) | Ground driving device of polished rod concealed screw pump | |
| CN218226479U (en) | Transmission and clutch protection device of light electric hammer | |
| CN108637660A (en) | The torque limiter that a kind of twocouese in the turn of the screw robot is protected | |
| CN201106638Y (en) | Toothed clutch with internally concealed groove structure | |
| CN211141159U (en) | Spring cable drum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |