CN104192532B - Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer - Google Patents
Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer Download PDFInfo
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- CN104192532B CN104192532B CN201410430738.1A CN201410430738A CN104192532B CN 104192532 B CN104192532 B CN 104192532B CN 201410430738 A CN201410430738 A CN 201410430738A CN 104192532 B CN104192532 B CN 104192532B
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- connecting rod
- ratchet
- protection device
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Abstract
The invention relates to the field of mechanical conveying, in particular to a chain breakage protection device for a chain, a conveyer, application of the chain breakage protection device for the chain and application of the conveyer. The chain breakage protection device comprises a synchronizing mechanism, a braking part, a first locking component and a second locking component. When the chain moves at an excessive speed, the chain enables the braking part to move beyond a specific range, the braking part drives the first locking component and the second locking component to be fixedly connected through the synchronizing mechanism, and therefore the braking part can stop the chain from moving. According to the chain breakage protection device, under the condition that the structure of the chain is not changed, timely response to accidents is guaranteed, and the safety index of production activities is increased.
Description
Technical field
The present invention relates to mechanical transportation art, more particularly, to a kind of chain breakage protection device for chain, conveyer and its
Application.
Background technology
Aborning through frequently with chain type chain in it is sometimes desirable to carry out vertical or tilt-lift operation.Carry out
During vertical or tilt-lift operation, the reverse-running section chain of chain type chain moves downward.Once chain is vertical or incline
Rupture in drawback movement obliquely, if do not taken necessary measure, then the material of whole chain and its conveying will be
Drop downwards in the presence of gravity accumulation, cause serious accident.To solve this problem it is necessary to improve the peace of chain
Overall coefficient, for example, to be realized by widening and increasing chain, but this method also increases the load of system, increased simultaneously
The cost of investment of system.
Content of the invention
For the problems referred to above, the present invention proposes a kind of chain breakage protection device for chain, especially improves chain
The safety coefficient of backhaul chain in vertical or tilt-lift operation.
The present invention proposes a kind of chain breakage protection device for chain, including：
Jointly can be actuated from the chain of proper motion and coupled return springs and do in particular range toward
The brake component of multiple motion, has been fixedly disposed the first locking member on described brake component,
Lazy-tongs, described lazy-tongs are synchronized with the movement with described brake component by simultaneous force, and
The second locking member being connected with described lazy-tongs,
Wherein, when described chain produces accelerated motion when exceeding normal operation, described chain can drive described system
There is the accelerated motion beyond described particular range in moving part, overcome described simultaneous force, misplace, and described brake component passes through institute
State lazy-tongs and drive described second locking member and described first locking member fixed engagement, thus hindering by described brake component
Only described chain moves.
Preferably, described brake component and described first locking member can be around common fixed rotating shaft synchronous rotaries.With
This mode, brake component can drive the first locking member together around the jointed shaft rotation at fulcrum.
Preferably, described first locking member includes being provided with the ratchet connecting rod of ratchet in end, described second locking
Part includes swing arm and the ratchet being adapted with described ratchet being arranged on the free end of described swing arm.Ratchet ratchet
Just it is securely seated between together once engagement, no longer separates, because the engagement force of the two (depends on chain with being mainly proportionate
And its load total force) much larger than return springs reset pulling force, it can be ensured that ratchet ratchet continues to nibble securely
Close, thus ensure that the chain that be will be switched off by brake component is firmly tangled, locks.
Preferably, described lazy-tongs include inertia connecting rod and flexible connecting member, and described inertia connecting rod and described fixation turn
Axle is hinged and can produce relative displacement on first direction upwards in revolution with respect to described ratchet connecting rod, and described inertia is even
Bar has through hole in the end away from described fixed rotating shaft, and described flexible connecting member one end is fixed on described ratchet, another
End is fixed on described ratchet connecting rod through the described through hole of described inertia connecting rod, when ratchet is located at positioned at left-hand end, through hole
During right hand end observation, described first direction is clockwise.It is further preferred that described flexible connecting member also extends through described system
The hole engaging with described fixed rotating shaft of moving part.So can more reasonably utilize the motive force to ratchet for the flexible connecting member.
Preferably, when described chain proper motion, described inertia connecting rod and described ratchet connecting rod are in revolution upwards
Position overlaps.Can achieve the simplest construction of device in this way.
Preferably, described ratchet connecting rod is provided with elastic block piece, described inertia connecting rod is provided with and described bullet
Property the lever that contacts of catch, described elastic block piece can be applied along rotation circumference to described inertia connecting rod by described lever
Second direction power, described second direction is opposite to the first direction, is located at left-hand end when ratchet, through hole is located at right hand end
During observation, described second direction is counterclockwise.When elastic block piece bends deformation, its can to lever apply around
The for example anticlockwise power of point, so that inertia connecting rod has follows the trend that ratchet connecting rod together rotates.Preferably,
Inertia connecting rod has larger quality (for the deformation power of elastic block piece).
Preferably, the baffle plate extending out is additionally provided with described ratchet connecting rod, described baffle plate can stop described used
Property connecting rod produces the relative displacement in second direction upwards with respect to described ratchet connecting rod in revolution.In this way, whole
In the reseting procedure of device, baffle plate can drive inertia connecting rod to carry out for example clockwise reseting movement together, until whole
Individual chain breakage protection device is returned to initial position.
Preferably, the described return springs spring that the other end is connected with described brake component for one end fixes.Further
Preferably, the fixing end of described swing arm is hinged to fixed position, the rotation of the swinging plane of described swing arm and described brake component
Turn plane to overlap.Certainly, described herein " coincidence " is not necessarily referring to the proper coincidence of space geometry, and its purpose is mainly
Allow ratchet and ratchet can normally play the function that it is mutually twisted.
Certainly, the setting of ratchet and ratchet is only exemplary, completely can be with the similar locking member being mutually adapted
To replace, for example resilient clamp member.
According to the chain breakage protection device of the present invention, it is ensured that to accident in the case of structural change not being carried out to chain
Timely reply, improve the safety index of production activity.
The invention allows for a kind of conveyer having according to chain breakage protection device of the present invention.
The invention allows for a kind of application in conveying activated carbon for conveyer according to the present invention.
Above-mentioned technical characteristic can combine in any suitable manner or to be substituted by equivalent technical characteristic, as long as can reach
To the purpose of the present invention.
Brief description
Hereinafter will be based on embodiment and refer to the attached drawing is being described in more detail to the present invention.Wherein：
Fig. 1 show be in primary importance according to the present invention for chain chain breakage protection device；
Fig. 2 shows the view of the observation of the A direction along along Fig. 1 of chain；
Fig. 3 show be in the second position according to the present invention for chain chain breakage protection device；
Fig. 4 shows the enlarged drawing of elastic block piece and lever in Fig. 3；
Fig. 5 show be in during the second position returns to primary importance according to the present invention for chain
Chain breakage protection device；
Fig. 6 show be in the 3rd position according to the present invention for chain chain breakage protection device；And
Fig. 7 shows the enlarged drawing of elastic block piece and lever in Fig. 6.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not according to actual ratio.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 show be in primary importance according to the present invention for chain chain breakage protection device.It is especially useful
In conveying activated carbon.
As seen from Figure 1, brake bar 1 is included first for the chain breakage protection device of chain according to the present invention.Brake bar 1 energy
Enough jointly actuated and moved reciprocatingly in particular range by the chain 10 of proper motion and coupled return springs 9.
In the embodiment shown in the figures, chain 10 specific example is chain 10, and this is not determinate certainly.According to this
The chain breakage protection device of invention can be applicable to any chain with the operation principle similar with chain 10.Fig. 2 shows further
The view of along along Fig. 1 A direction observation of chain 10.As can be seen that each unit of chain 10 includes two be arrangeding in parallel
Carrier bar 11, the end of carrier bar 11 is provided with the roller 12 of lateral arrangement.The brake bar 1 of the chain breakage protection device according to the present invention
One end be inserted in the middle of two carrier bars 11 of chain 10.So, when chain 10 is mobile, often it is moved through a unit, is located at
The roller 12 of the lateral arrangement of carrier bar 11 end can drive brake bar 1 to move.In situation shown in the drawings, in roller 12
Under pressure effect, brake bar 1 can rotate certain amplitude around its fulcrum O.
Referring again to Fig. 1, return springs 9 spring 9 that the other end is connected with brake bar 1 for one end fixes.However, this
It is only for a kind of implementation of the return springs of brake bar 1, it should be readily apparent to one skilled in the art that any have
The elastomeric element of the function similar with spring 9, such as support spring, flat spring, butterfly spring etc. are used equally to this.Flexible Reset
Part 9 is preferably attached to the near middle of brake bar 1.
The ratchet connecting rod 4 being provided with ratchet 13 in end is fixedly disposed on brake bar 1.Brake bar 1 and ratchet
Connecting rod 4 is fixed together, and the two can be around common fixed rotating shaft synchronous rotary.This fixed rotating shaft is fixed on hinged seat 14
The jointed shaft at fulcrum O.In addition, so-called herein " fixed rotating shaft " refers to that the position of this rotating shaft is fixed, but according to concrete
Design needs, and its own can be rotated.
Chain breakage protection device according to the present invention also includes the ratchet 2 being adapted with ratchet 13.Ratchet 2 is arranged on swing arm
On the free end of ratchet connecting rod 16 of form.The fixing end of ratchet connecting rod 16 is hinged on fixing hinged seat 17.Ratchet 2 He
Ratchet connecting rod 16 can rotate around hinged seat 17.In an initial condition, mutually it is separated with one between the ratchet 13 of ratchet 2 and ratchet connecting rod 4
Safe distance, both do not interfere.
By Fig. 1 it can easily be understood that the swinging plane of ratchet connecting rod 16 is overlapped with the Plane of rotation of brake bar 1.Certainly, herein
Described " coincidence " is not necessarily referring to the proper coincidence of space geometry, and its purpose mainly allows ratchet 2 and the ratchet 13 can
The normal function of playing it and be mutually twisted.
Chain breakage protection device according to the present invention also includes inertia connecting rod 3.On the same and fixing hinged seat 14 of inertia connecting rod 3
The jointed shaft at fulcrum O hinged, and can rotate around this jointed shaft.Therefore, inertia connecting rod 3 can be with respect to ratchet connecting rod
4 produce (specifically, in the accompanying drawings, first direction is i.e. around the clockwise direction of fulcrum O) on first direction upwards in revolution
Relative displacement (for the concrete generation process of angular displacement, can be discussed in detail below).On the other hand, inertia connecting rod 3 away from
The end of the fixed rotating shaft at fulcrum O has through hole 15.
Chain breakage protection device according to the present invention also includes flexible connecting member 6.In order to distinguish with remaining part, in accompanying drawing
In, flexible connecting member 6 is shown in broken lines.Specifically, flexible connecting member 6 may be embodied as rope and chain etc..Flexible connecting member 6
One end is fixed on ratchet 2, denotes, by label E, the position that flexible connecting member 6 is engaged with ratchet 2 in figure.Flexibility is even
The other end of fitting 6 passes through the through hole 15 of inertia connecting rod 3 to be fixed on ratchet connecting rod 4 so that flexible connecting member 6 can be free
By through hole 15.In a preferred embodiment, flexible connecting member 6 also extends through turning with the fixation at fulcrum O of brake bar 1
The hole that axle engages.That is, the path of flexible connecting member 6 can be through the pivot point O of brake bar 1.In an initial condition,
The weight so that due to ratchet 2 and ratchet connecting rod 16 arranged in its swinging plane at an angle by ratchet 2 and ratchet connecting rod 16
Power acts on, and flexible connecting member 6 is in tension.
Elastic block piece 5 is provided with ratchet connecting rod 4, the shelves being contacted with elastic block piece 5 are provided with inertia connecting rod 3
Bar 8.Elastic block piece 5 can be applied to inertia connecting rod 3 along the circumferential second direction of rotation (specifically, in accompanying drawing by lever 8
In, second direction is i.e. around the counter clockwise direction of fulcrum O) power.Can easily be understood by Fig. 1, when elastic block piece 5 occur curved
During curved change, it can apply the anticlockwise power around fulcrum O to lever 8, so that inertia connecting rod 3 has follows spine
The trend that wheel connecting rod 4 together rotates.Preferably, inertia connecting rod 3 has the larger quality (deformation herein for elastic block piece 5
For power).
Elastic block piece 5 one end is fixed on ratchet connecting rod 4, and the other end is freely.Lever 8 is fixed on inertia connecting rod 3.First
Under beginning state, the free end of elastic block piece 5 is close together with lever 8.
In the embodiment shown in the figures, elastic block piece 5 and lever 8 are arranged at positioned at ratchet connecting rod 4 and inertia connecting rod 3 two
In space between person, elastic block piece 5 and lever 8 prolong respectively from the surface toward each other of ratchet connecting rod 4 and inertia connecting rod 3
Stretch, formed bonded to each other.In position, lever 8 is preferably offset by fulcrum O mono- segment distance so that ratchet connecting rod 4 can pass through
The interaction of elastic block piece 5 and lever 8 applies certain torque to inertia connecting rod 3, so that it trends towards following ratchet connecting rod 4 and encloses
Around fulcrum O rotation.
Certainly, elastic block piece 5 and lever 8 can also take other arrangements, for example, they are arranged at inertia even
The side (abbreviation outer surface side after a while) away from ratchet connecting rod 4 of bar 3.Elastic block piece 5 extends from the edge of ratchet connecting rod 4
Come, and the outer surface side along inertia connecting rod 3 extends, and lever 8 is directly from outer surface and elastic block piece 5 phase of inertia connecting rod 3
Snugly extend out.
With further reference to Fig. 1, the baffle plate 7 extending out is additionally provided with ratchet connecting rod 4.Baffle plate 7 can stop inertia
Connecting rod 3 with respect to ratchet connecting rod 4 revolution produce upwards second direction (specifically, in the accompanying drawings, second direction i.e. around
The counter clockwise direction of point O) on relative displacement.
Fig. 3 show be in the second position according to the present invention for chain chain breakage protection device.When chain 10 just
When often running, chain 10 is moved downward with relatively low speed.It is inserted in the middle of carrier bar 11 when the roller 12 on chain 10 touches
Brake bar 1 when, brake bar 1 can be promoted to carry out rotate counterclockwise around the jointed shaft at pivot point O.Brake bar 1 can drive
Ratchet connecting rod 4 rotates around the jointed shaft at fulcrum O together, because the two is mutually fixedly set.Roller in chain 10
Under the influence of 12, primary importance as shown in Figure 1 is moved to the second shown in Fig. 2 by the chain breakage protection device according to the present invention
Put.
In the case of normally running in chain 10, the velocity of rotation of ratchet connecting rod 4 is relatively low, and acceleration is substantially zeroed,
So be fixed on ratchet connecting rod 4 elastic block piece 5 promotion be fixed on inertia connecting rod 3 lever 8, make inertia connecting rod 3 also with
Ratchet connecting rod 4 to rotate.Fig. 4 specifically show the enlarged drawing of elastic block piece 5 and lever 8 in Fig. 3, wherein it is evident that elasticity
Catch 5 amplitude of deformation is less, and it is applied with to lever 8 and inertia connecting rod 3 along the side counterclockwise rotating circumference by elastic deformation
Power to (direction shown in the arrow of in figure).
Referring again to Fig. 3, due in chain breakage protection device from Fig. 1 shown in primary importance move to shown in Fig. 3 second
During position, position upwards remains coincidence, inertia connecting rod 3 and spine in revolution for inertia connecting rod 3 and ratchet connecting rod 4
There is no relative angular displacement between wheel connecting rod 4, therefore on connecting rope 6, the rotation of the fixing point E that is connected with ratchet 2 and brake bar 1
Turn the distance between center O constant.So, even if inertia connecting rod 3 there occurs the rotation fortune around the jointed shaft at fulcrum O
Dynamic, it also will carry pawl 2 to move by connecting rope 6.On the other hand, because in an initial condition, ratchet 2 and ratchet are even
Mutually it is separated with one section of safe distance, so under the normal ruuning situation of chain 10, ratchet 2 and ratchet are even between the ratchet 13 of bar 4
Bar 4 will not interfere.So, chain 10 can successfully move downward, and brake bar 1 is made without producing braking and locking
With.
Meanwhile, when brake bar 1 is around fulcrum O rotate counterclockwise, the back-moving spring 9 of side fixed thereon can be stretched.Cause
This as shown in figure 5, after the roller 12 of chain 10 runs downwards by brake bar 1, produced by the tensile deformation of back-moving spring 9
Pulling force can pull brake bar 1, and brake bar 1 can carry out clockwise rotation around O point, and now brake bar 1 can drive ratchet
Connecting rod 4 carries out reseting movement.And the baffle plate 7 being fixed on ratchet connecting rod 4 can drive inertia connecting rod 3 to carry out reseting movement together,
Until whole chain breakage protection device is returned to initial position, i.e. primary importance shown in Fig. 1.
Fig. 6 show be in the 3rd position according to the present invention for chain chain breakage protection device.When 10, chain
During raw chain rupture, the gravity of the load on chain 10 and chain 10 can make chain 10 be accelerated (almost with acceleration of gravity
In the movement of falling object).Chain 10 sharp downward movement, the rapid hypervelocity motion occurring beyond normal range.
After now the roller 12 of chain 10 touches brake bar 1, the gravity of the load on chain 10 and chain 10 all loads
Arrive on brake bar 1.Brake bar 1 will produce a very big angular acceleration, and carries out anticlockwise adding around fulcrum O
Speed rotation.Due to the setting interfixing, brake bar 1 can drive ratchet connecting rod 4 also to produce a very big angular acceleration, ratchet
Connecting rod 4 accelerates to rotate therewith.Because inertia connecting rod 3 has relatively large quality, when elastic block piece 5 is with ratchet connecting rod 4
When being rotated with very big angular acceleration, now the elastic force of elastic block piece 5 is relative seems less it is impossible to drive inertia connecting rod 3 one
Play rotation.
Fig. 7 shows the enlarged drawing of elastic block piece 5 and lever 8 in Fig. 6, it can be seen from figure 7 that elastic block piece 5 is
There occurs obvious Bending Deformation, because ratchet connecting rod 4 is to there occurs significantly to rotate within the extremely short time, elastic block piece
5 elastic force being applied cannot drive the inertia connecting rod 3 with larger quality and ratchet connecting rod 4 synchronous rotary in time.
Therefore, inertia connecting rod 3 cannot be followed ratchet connecting rod 4 in time and be rotated, and thus make inertia connecting rod 3 and ratchet connecting rod 4
Between create relative angular displacement.In the embodiments illustrated in the figures, inertia connecting rod 3 creates edge with respect to ratchet connecting rod 4 and turns
The clockwise relative displacement of dynamic circumference.
It is fixed on ratchet connecting rod 4 due to connecting rope 6 one end (in figure 6 it can be seen that junction point) with label F sign,
After inertia connecting rod 3 and ratchet connecting rod 4 produce relative angular displacement, between the through hole 15 on this fixing point F and inertia connecting rod 3 away from
Defection increased, and the distance of this increase is more than the safe distance between ratchet 2 and the ratchet 13 of ratchet connecting rod 4, so connecting
Rope 6 can haul ratchet 2 and move towards ratchet 13, so that ratchet 2 and the ratchet 13 of ratchet connecting rod 4 is engaged each other.
Ratchet ratchet is just securely seated between together once engagement, no longer separates.Even if inertia connecting rod 3 and ratchet connecting rod 4
Between relative angular displacement disappear, due to ratchet ratchet engagement force (be mainly proportionate depending on chain 10 and its negative
Carry total force) much larger than support spring 9 reset pulling force, it can be ensured that ratchet ratchet continues to engage securely, thus
Ensure that the chain 10 that will be switched off by brake bar 1 firmly tangles locking.
The invention allows for a kind of conveyer having according to chain breakage protection device of the present invention.
The invention allows for a kind of application in conveying activated carbon for conveyer according to the present invention.
Although by reference to preferred embodiment, invention has been described, in the situation without departing from the scope of the present invention
Under, it can be carried out with various improvement and part therein can be replaced with equivalent.Especially, as long as there is not structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment all can combine in any way.The invention is not limited in literary composition
Disclosed in specific embodiment, but include all technical schemes of falling within the scope of the appended claims.
Claims (10)
1. it is used for the chain breakage protection device of chain it is characterised in that including：
Can jointly be actuated by the chain of proper motion and coupled return springs and do reciprocal fortune in particular range
Dynamic brake component, has been fixedly disposed the first locking member on described brake component,
Lazy-tongs, described lazy-tongs are synchronized with the movement with described brake component by simultaneous force, and
The second locking member being connected with described lazy-tongs,
Wherein, when described chain produces accelerated motion when exceeding normal operation, described chain can drive described brake component
There is the accelerated motion beyond described particular range, overcome described simultaneous force, misplace, described brake component passes through described same
Step mechanism drives described second locking member and described first locking member fixed engagement, thus stoping institute by described brake component
State chain to move.
2. chain breakage protection device according to claim 1 is it is characterised in that described brake component and described first locking member
Can be around common fixed rotating shaft synchronous rotary.
3. chain breakage protection device according to claim 2 is it is characterised in that described first locking member is included in end
It is provided with the ratchet connecting rod of ratchet,
Described second locking member is included swing arm and is mutually fitted with described ratchet with the free end being arranged on described swing arm
The ratchet joined.
4. chain breakage protection device according to claim 3 is it is characterised in that described lazy-tongs include inertia connecting rod and soft
Property connector,
Described inertia connecting rod and described fixed rotating shaft are hinged and can produce the with respect to described ratchet connecting rod upwards in revolution
Relative displacement on one direction, described inertia connecting rod has through hole in the end away from described fixed rotating shaft,
Described flexible connecting member one end is fixed on described ratchet, and the other end passes through the described through hole of described inertia connecting rod to fix
To on described ratchet connecting rod, described flexible connecting member also extends through the hole engaging with described fixed rotating shaft of described brake component,
When ratchet is located at left-hand end, through hole positioned at right hand end observation, described first direction is clockwise.
5. chain breakage protection device according to claim 4 is it is characterised in that when described chain proper motion, described used
In revolution, position upwards overlaps property connecting rod with described ratchet connecting rod.
6. chain breakage protection device according to claim 5 is it is characterised in that arrange flexible gear on described ratchet connecting rod
Piece, is provided with the lever contacting with described elastic block piece on described inertia connecting rod, and described elastic block piece can pass through described
Lever applies power, described second direction and the described first direction phase of the second direction along rotation circumference to described inertia connecting rod
Instead,
When ratchet is located at left-hand end, through hole positioned at right hand end observation, described second direction is counterclockwise.
7. chain breakage protection device according to claim 6 is it is characterised in that be additionally provided with extension on described ratchet connecting rod
Baffle plate out, described baffle plate can stop described inertia connecting rod from producing second with respect to described ratchet connecting rod upwards in revolution
Relative displacement on direction.
8. the chain breakage protection device according to any one of claim 3 to 7 is it is characterised in that described return springs are
One end is fixed and spring that the other end is connected with described brake component, and the fixing end of described swing arm is hinged to fixed position, institute
The swinging plane stating swing arm is overlapped with the Plane of rotation of described brake component.
9. there is the conveyer of the chain breakage protection device according to any one of claim 1 to 8.
10. application in conveying activated carbon for the conveyer according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430738.1A CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430738.1A CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104192532A CN104192532A (en) | 2014-12-10 |
| CN104192532B true CN104192532B (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410430738.1A Active CN104192532B (en) | 2014-08-28 | 2014-08-28 | Chain breakage protection device for chain, conveyer, application of chain breakage protection device for chain and application of conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104192532B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132372B (en) * | 2018-11-02 | 2024-03-22 | 新汶矿业集团有限责任公司 | Self-sliding pawl type belt conveyor buffer backstop |
| CN117142041B (en) * | 2023-09-08 | 2024-03-08 | 上海赛摩物流科技有限公司 | Automatic change detection lifting machine chain broken link mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131025A (en) * | 1975-05-07 | 1976-11-15 | Takata Kk | Retractor responsive to acceleration |
| WO2007083331A1 (en) * | 2006-01-23 | 2007-07-26 | Campagnolo S.R.L. | Control device for a bicycle derailleur |
| CN201777769U (en) * | 2010-08-23 | 2011-03-30 | 浙江凌志电梯有限公司 | Non-manipulation anti-reverse rotation protection device for escalator |
| CN202245202U (en) * | 2011-09-09 | 2012-05-30 | 平顶山中选自控系统有限公司 | Chain breaking protection device of scraper conveyor |
| CN202662127U (en) * | 2012-06-28 | 2013-01-09 | 马海英 | Chain-breaking detection and alarm device for chain |
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2014
- 2014-08-28 CN CN201410430738.1A patent/CN104192532B/en active Active
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| Publication number | Publication date |
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| CN104192532A (en) | 2014-12-10 |
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Inventor after: Zhang Zhen Inventor after: Ye Hengdai Inventor after: Sun Ying Inventor after: He Xinhua Inventor after: Wei Jinchao Inventor after: Chen Yongming Inventor before: Zhang Zhen Inventor before: Ye Hengdai Inventor before: Sun Ying Inventor before: He Xinhua Inventor before: Wei Jinchao |
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Effective date of registration: 20160614 Address after: 410007 Changsha City, Hunan province labor Road No. 1 Applicant after: ZhongYe Changtian International Engineering Co., Ltd. Applicant after: Baoshan Iron & Steel Co., Ltd. Address before: 410007 Changsha City, Hunan province labor Road No. 1 Applicant before: ZhongYe Changtian International Engineering Co., Ltd. |
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