CN201411344Y - Braking device for lifting machine - Google Patents
Braking device for lifting machine Download PDFInfo
- Publication number
- CN201411344Y CN201411344Y CN2009201097206U CN200920109720U CN201411344Y CN 201411344 Y CN201411344 Y CN 201411344Y CN 2009201097206 U CN2009201097206 U CN 2009201097206U CN 200920109720 U CN200920109720 U CN 200920109720U CN 201411344 Y CN201411344 Y CN 201411344Y
- Authority
- CN
- China
- Prior art keywords
- brake
- gig
- brake shoe
- braking
- displacement
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a braking device for a lifting machine, which comprises a brake disc, a brake shoe, a brake spring connected with the brake shoe and an actuating mechanism for driving thebrake shoe, wherein the braking device for the lifting machine further comprises an alarm apparatus, a controller and a displacement detection device for detecting the displacement of the brake shoe,and the controller is connected with the displacement detection device and the alarm apparatus to control the alarm apparatus to send out brake shoe failure warning when the displacement detection device detects that the displacement of the brake shoe from the release position to the braking position is more than the first preset displacement, and/or to control the alarm apparatus to send out brake spring failure warning when the displacement detected by the displacement detection device is less than the second preset displacement. The braking device for the lifting machine can monitor and detect the running state of the braking device in time without stopping the lifting machine, further effectively prevent the failure of braking of the lifting machine, and also enhance the reliability and the security of overall running of the lifting machine.
Description
Technical field
The utility model relates to the brake equipment field, especially relates to a kind of gig braking equipment.
Background technology
Gig is the potential load, and damper brake lost efficacy will cause fatal crass's serious safety misadventure.Number of drawbacks in the damper brake system can cause that all damper brake lost efficacy.For example brake shoe undue wear, lock spring damage again and can't correctly and in time detect, pressure fluctuation in service is excessive, emergency braking under the perhaps overweight running state makes the brake block excessive heating and reduces braking force, oil return loop, brake fluid pressure station can not oil return etc. factor all can cause the braking failure of damper brake.
In traditional gig braking equipment, main consideration improves safety by the improvement to electric control system, and the monitoring of the running state of mechanical structure system each several part is paid attention to inadequately, operating personal is difficult in time learn the running state of mechanical structure system each several part, causes the reliability of gig overall operation and safety to be difficult to significantly improve thus.
The utility model content
The utility model is intended to overcome at least one of above-mentioned technical matters of the prior art.
For this reason; a purpose of the present utility model provides a kind of gig braking equipment; this gig braking equipment does not need gig to shut down; can in time monitor and detect the running state of the mechanical structure system each several part of gig braking equipment; and then effectively prevent the inefficacy of gig braking, the reliability and the safety that improve the gig overall operation.
To achieve these goals, according to the utility model proposes a kind of gig braking equipment, comprise brake disc, brake shoe, the retarding spring that links to each other with brake shoe, drive the actuating mechanism of brake shoe, wherein, described gig braking equipment also comprises: annunciator, controller and the displacement detector that detects the brake shoe displacement, wherein said controller link to each other with annunciator with displacement detector so that described controller control annunciator when displacement detector detects displacement that brake shoe moves towards braking position from the release position greater than first preset displacement sends the brake shoe Failure Alarm and/or controls annunciator in detected described displacement during less than second preset displacement and send the retarding spring Failure Alarm.
Because can be at the brake equipment run duration by detecting the displacement of brake shoe in real time, judge whether brake shoe and/or retarding spring lost efficacy, and then in time remind operating personal to change friction lining and/or retarding spring on the brake shoe, therefore can effectively prevent the inefficacy of gig braking lock, the reliability and the safety that improve the gig overall operation.
In an embodiment of the present utility model, described actuating mechanism is a hydraulic actuating unit, wherein said gig braking equipment further comprises the oil pressure detecting device of detective liquid hydraulic circuit oil pressure, and described oil pressure detecting device links to each other with controller with convenient oil pressure detecting device, and controller control annunciator sent the braking failure warning when detected oil pressure was greater than default oil pressure after hydraulic actuating unit discharges brake shoe.
If oil pressure is unusual when brake shoe is in braking position, illustrate that hydraulic actuating unit does not have complete pressure release, brake shoe is not discharged fully by hydraulic actuating unit, thereby retarding spring possibly can't be pushed to brake disc with brake shoe, therefore there is the braking failure possibility, by in operating process, monitoring the oil pressure in the hydraulic circuit in real time, help the fault that operating personal finds that in time hydraulic circuit exists, further prevent the inefficacy of gig braking lock, the reliability and the safety that improve the gig overall operation.
In an embodiment of the present utility model, described gig braking equipment also comprises the brake positive pressure detecting device that detects the Block brake positive pressure, described brake positive pressure detecting device link to each other with controller and detected brake positive pressure during less than default brake positive pressure controller control annunciator send the braking failure warning.
Owing to directly detect the positive pressure of Block brake, in case therefore brake positive pressure is less than default brake positive pressure, illustrate that braking force can not reach requirement, alert is taked the necessary processing measure, help further preventing the inefficacy of gig braking lock, the reliability and the safety that improve the gig overall operation.
In an embodiment of the present utility model, described gig braking equipment further comprises and detects the acceleration-deceleration measurement mechanism that gig rotates acceleration-deceleration, described acceleration measurement device link to each other with controller and detected gig rotation acceleration during greater than default rotation acceleration or brake shoe be in braking position and gig rotates deceleration/decel and exceeds when rotating the deceleration/decel preset range controller and control annunciator and send warning.
Measure acceleration-deceleration that gig rotates and excessive or report to the police when rotating the super scope of deceleration/decel, can further help the mode of operation of operating personal monitoring gig, take precautions against and prevention causes the generation of accident because of reasons such as braking failures at rotation acceleration.
In an embodiment of the present utility model, described gig braking equipment further comprises electric permanent brake snub control setup, and described electric permanent brake snub control setup links to each other with controller and controls the drive motor that electric permanent checking brake is braked gig to send when reporting to the police described controller at annunciator.
Electric permanent brake snub control setup is set, can cause braking failure because of reasons such as brake shoe, retarding springs and cause the gig rotation acceleration excessive or rotate deceleration/decel and exceed under the situation of preset range because of other reasons, make gig with constant deceleration/decel ramp to stop, thereby improve gig traveling comfort and safety.
Aspect that the utility model is additional and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the gig braking equipment scheme drawing according to an embodiment of the utility model, and wherein brake shoe is in the band-type brake state;
Fig. 2 is that wherein brake shoe is in the state of declutching according to the scheme drawing of the gig braking equipment of an embodiment of the utility model;
Fig. 3 is the principle of work block diagram according to the gig braking equipment of an embodiment of the utility model.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the gig braking equipment 100 of accompanying drawing description according to the utility model embodiment.
Fig. 1 is that wherein brake shoe 12 is in the band-type brake state according to the scheme drawing of the lifting brake equipment 100 of an embodiment of the utility model; Fig. 2 is that wherein brake shoe 12 is in the state of declutching according to the scheme drawing of the lifting brake equipment 100 of an embodiment of the utility model; Fig. 3 is the principle of work block diagram according to the lifting brake equipment 100 of an embodiment of the present utility model.
Shown in Fig. 1～3, gig braking equipment 100 according to an embodiment of the utility model comprises brake disc 11, brake shoe 12, the retarding spring 14 that links to each other with brake shoe 12, the actuating mechanism 20 that drives brake shoe 12, annunciator 30, controller 40 and the displacement detector 50 that detects brake shoe 12 displacements.Brake shoe 12 is fixed on the brake shoe seat 13, and brake disc 11, brake shoe 12 and retarding spring 14 constitute damper brake 10.
Brake shoe 12 is fixed on side brake shoe seat 13, adjacent with brake disc 11 and detachable.One end of retarding spring 14 links to each other with the opposite side of brake shoe seat 13, and the other end of retarding spring 14 can link to each other with the support (not shown), and for example the cylinder body with hydraulic actuating unit 20 links to each other.
Retarding spring 14 promotes brake shoe seat 13 and moves towards brake disc 11 when stretching, and then by brake shoe seat 13 brake shoe 12 is pressed on the brake disc 11, even brake shoe 12 moves to braking position.Actuating mechanism 20 is used to make the brake shoe seat 13 of damper brake 10 to move along the direction away from brake disc 11, thereby brake shoe 12 is moved to the release position, simultaneously with retarding spring 14 compressions.
Need to prove that though the retarding spring 14 of two coil spring forms has been shown among Fig. 1 and 2, the utility model is not limited to this, retarding spring 14 also can replace with other elastic components, and quantity can be provided with as required.
In an example of the present utility model, actuating mechanism 20 is the fluid pressure type actuating mechanism, thereby can improve stability and reliability.Fluid pressure type actuating mechanism 20 comprises hydraulic actuating cylinder 21 and the Hydraulic Station (not shown) that links to each other with hydraulic actuating cylinder 21.Hydraulic actuating cylinder 21 comprises cylinder body 210 and piston 211, and piston 211 constitutes by being arranged on the piston head 211a in the cylinder body 210 and extending to cylinder body 210 exterior connecting rod 211b.
The end that connecting rod 211b is positioned at cylinder body 210 is connected with piston head 211 to drive piston head 211a at hydraulic actuating cylinder 21 crank motions, and connecting rod 211b is positioned at the cylinder body 210 outer other ends and is connected with brake shoe seat 13.The other end of retarding spring 14 is fixed on the cylinder body 210.
Do not needing glancing impact, Hydraulic Station in hydraulic actuating cylinder 21, connecting rod 211b place one side (left side among Fig. 1 and Fig. 2) supplies with hydraulic oil, piston 211 elastic force that overcomes retarding spring 14 promotes brake shoe seat 13 towards moving to the position of declutching away from the direction of brake disc 11 (among Fig. 1 and 2 to right) thus.Brake shoe seat 13 drives brake shoe 12 and breaks away from brake disc 11, and brake shoe seat 13 is with retarding spring 14 compressions simultaneously.
When the needs glancing impact, Hydraulic Station is removed the pressure in the hydraulic actuating cylinder 21, the left side pressure release of hydraulic actuating cylinder 21, at this moment, the elastic force of retarding spring 14 make brake shoe seat 13 towards the direction near brake disc 11 move and the most at last brake shoe 12 be pressed on (braking position) on the brake disc 11, with by the braking of the realization of the friction force between brake shoe 12 and the brake disc 11 to brake disc 11.In order to guarantee braking effect, brake shoe 12 affact on the brake disc 11 positive pressure can by retarding spring 14 select for use and braking mode under the extension distance of retarding spring 14 realize.
Thus, by the pressurization of Hydraulic Station to hydraulic actuating cylinder 21, piston head 122a makes brake shoe 12 break away from brake disc 11 via connecting rod 211b and brake shoe seat 13 and arrives the release position, and brake shoe seat 13 is with retarding spring 14 compressions simultaneously; By the decompress(ion) of Hydraulic Station to hydraulic actuating cylinder 21, retarding spring 14 stretches, and brake shoe 12 is pushed to braking position and is pressed on the brake disc 11 via brake shoe seat 13, realizes the braking of 12 pairs of brake discs 11 of brake shoe thus and to the releasing of described braking.
According to an example of the present utility model, displacement detector 50 is a displacement pickup.Described displacement pickup can be one, also can be two, in the embodiment shown in Fig. 1 and 2, two displacement pickups 50 are separately positioned on the both sides up and down of hydraulic actuating cylinder 21, displacement pickup 50 has telescopic sounding rod 51, the measuring junction of sounding rod 51 links to each other with a side of brake shoe seat 13, and can be with the moving of brake shoe seat 13, with the change in displacement of record brake shoe seat 13.
Need to prove that because brake shoe 12 is fixed on the brake shoe seat 13, and the thickness of brake shoe seat 13 is certain, so the displacement sensor variation that goes out 13 displacements of brake shoe seat can be used as the change in displacement of brake shoe 12.Certainly, also can use other structure directly to measure brake shoe 12 change in displacement.Displacement pickup for example can be Hall displacement transducer, and it has and is quick on the draw, the advantage that not disturbed by non-metal such as extraneous dust.In addition, displacement detector 50 also can be the precise stroke switch.
Below in conjunction with Fig. 1 and Fig. 2 the principle of work of gig braking equipment 100 in the present embodiment is described.
Do not needing glancing impact, Hydraulic Station is to hydraulic actuating cylinder 21 fuel feeding, brake shoe seat 13 drives brake shoe 12 and moves to the release position towards the direction away from brake disc 11 under the pulling of piston 211, sounding rod 51 corresponding moving, and this moment, damper brake 10 was in the state of declutching (referring to Fig. 2); When the needs glancing impact, Hydraulic Station is removed the oil pressure of hydraulic actuating cylinder 21, hydraulic actuating cylinder 21 hold-off pressures, brake shoe seat 13 promotes brake shoe 12 and moves towards brake disc 11 under the elastic force effect of retarding spring 14, sounding rod 51 moves thereupon, and when arriving braking position, brake shoe 12 compresses brake disc 11, this moment, damper brake 10 was in band-type brake state (referring to Fig. 1), measures thick stick 51 and measure brake shoe 12 moves to braking position from the release position displacement in this process.
Because therefore damper brake 10 band-type brake and declutching constantly on the one hand, can cause the problem of brake shoe 12 because of the attenuation gradually that constantly is worn in gig 100 lifting process.Before losing efficacy, need in time to find and change brake shoe 12 when brake shoe 12 serious wear.For this reason, need to set the maximum displacement that brake shoe 12 is allowed when braking position moves from the release position, this maximum displacement is above-mentioned first preset displacement and equals greatest wear amount that brake shoe 12 allowed and the displacement sum of unworn brake shoe 12 when the release position moves to braking position.On the other hand, retarding spring 14 can be because of compressing and stretch tired even fracture so that inefficacy repeatedly.Therefore, after hydraulic actuating cylinder 21 hold-off pressures, even brake shoe 12 without any wearing and tearing, also may lose efficacy and brake shoe 12 can't be pushed to braking position because of retarding spring 14.Therefore, need to set brake shoe 12 least displacement that retarding spring 14 need stretch when braking position moves from the release position, this least displacement is above-mentioned second preset displacement, the displacement of brake shoe 12 when described least displacement equals retarding spring 14 unworn brake shoe 12 is pushed to the braking position that can effectively brake brake disc 11.
Below to first preset displacement and second preset displacement determine describe.
At first, new unworn brake shoe 12 and new retarding spring 14 are installed, then brake shoe 12 are moved to the release position, this moment, retarding spring 14 was in complete compressive state, measure this moment brake shoe 12 and the opposing end surface of brake disc 11 between apart from S
0,, with brake disc 11 and brake shoe 12 opposing end faces as a reference, need to prove that the utility model is not limited to this here, can select for a post what suitable fixed position as a reference.
Then, can be rule of thumb and/or the requirement of the damper brake 10 safety factors maximum of setting brake shoe 12 allow abrasion loss Δ S, the abrasion loss of brake shoe 12 in the time of also can beginning to occur by the experimental measurement braking failure, the value that will be less than or equal to the abrasion loss of brake shoe 12 allows abrasion loss Δ S as maximum.Like this, the maximum of brake shoe 12 allows abrasion loss Δ S and S
0Sum is above-mentioned first preset displacement, and promptly brake shoe 12 moves to the maximum permission displacement of braking position from the release position, and in actual the use, Δ S can revise and regulate according to actual conditions.
Under retarding spring 14 can wide-spread situation,, then should satisfy S≤S if the work shift that brake shoe 12 moves to the position that can effectively brake brake disc 11 from the release position is S
0+ Δ S.In other words, if the work shift of brake shoe 12 is less than or equal to S
0During+Δ S, the abrasion loss that brake shoe 12 is described is less than Δ S, and state is normal; If the work shift of brake shoe 12 is greater than S
0During+Δ S, brake shoe 12 abrasion losies are described greater than Δ S, excessive wear, there is the danger that braking failure takes place because of brake shoe 12 excessive wears in damper brake 10.This moment the brake shoe 12 that controller 40 is sent according to displacement detector 50 displacement greater than S
0The signal control annunciator 30 of+Δ S sends warning.After receiving the report for police service, operating personal can in time change brake shoe 2.
Because brake shoe 12, brake shoe seat 13 link to each other with retarding spring 14, so the work shift of retarding spring 14 promptly equals the work shift of brake shoe 12, S
0That is to say the minimum work shift of retarding spring 14, this minimum work shift is as second preset displacement.
In the practice, because brake shoe 12 meeting wearing and tearing, so the work shift of damper brake 10 effective glancing impact retarding springs 14 should be more than or equal to S
0If the work shift of retarding spring 14 was L when unworn brake shoe 12 moved to effective braking brake disc 11 from the release position, then should satisfy L 〉=S
0
In other words, in order brake shoe 12 can be pushed to the position of effective braking brake disc 11 from the release position, the work shift L of spring 14 should be not less than S
0Abrasion loss sum with brake shoe 12; If the work shift L of retarding spring 14 is less than S
0, illustrate that then brake shoe 12 can not effectively brake brake disc 11, even brake shoe 12 can not arrive braking position, thereby because the reason damper brake 10 of retarding spring 14 can't effectively brake.This moment the retarding spring 14 (brake shoe 12) sent according to displacement detector 50 of controller 40 displacement less than S
0Signal control annunciator 30 send warning.After receiving the report for police service, operating personal in time changes retarding spring 14.
Those skilled in the art are understood that easily, even the work shift S≤S of brake shoe 12
0+ Δ S, and the work shift of retarding spring 14 is greater than S
0, damper brake 10 also may be because the positive pressure deficiency of 12 pairs of brake discs 11 of damper brake and braking failure.For this reason, as shown in Figure 3, according to an embodiment of the present utility model, gig braking equipment 100 further comprises the brake positive pressure detecting device 70 of the positive pressure that detects 12 pairs of brake discs 11 of brake shoe.This brake positive pressure detecting device 70 links to each other with controller 40, and retarding spring 14 affacts positive pressure on the brake disc 11 via brake shoe 12 when measuring brake shoe 12 and being in braking position.In case the positive pressure that measures is during less than default brake positive pressure, controller 40 will control annunciator 30 and send the braking failure warning, so that operating personal in time overhauls damper brake 10.Described brake positive pressure detecting device 70 can be pressure sensor, for example can be arranged on an end of retarding spring 14 and fixes between the fixed part (as the cylinder body of hydraulic actuating cylinder 210) of this end.
In an embodiment of the present utility model, gig braking equipment 100 further comprises the oil pressure detecting device (not shown) of the oil pressure in the loop of detecting hydraulic actuating unit 20, described oil pressure detecting device links to each other with controller 40, so that controller 40 control annunciators 30 send braking failure and report to the police when actuating mechanism 20 discharges oil pressure in the detected loop of oil pressure detecting device, brake shoes 12 back greater than default oil pressure.
As shown in Figure 1, at the needs glancing impact, the oil pressure in the oil hydraulic cylinder 210 discharges, and spring 14 stretches, and promotes brake shoe 12 and is pressed on the brake disc 11.At this moment, if the oil pressure in the hydraulic actuating cylinder 210 does not discharge fully, then remaining oil pressure will cause the retarding spring 14 can't full extension in the oil hydraulic cylinder 210, thereby retarding spring 14 can't be pressed to brake shoe 12 on the brake disc 11, even or be pressed onto on the brake disc 11, the pressure between brake shoe 12 and the brake disc 11 can not reach the positive pressure of effective braking.At this moment, when detecting brake shoe 12 and be in braking position, oil pressure in the loop during greater than default oil pressure (default oil pressure value can be made as zero under the situation of not considering the static pressure that hydraulic oil produces because of self gravitation) controller 40 control annunciators 30 send braking failure and report to the police so that overhaul hydraulic circuit in time.
In an embodiment of the present utility model, gig braking equipment 100 further comprises the acceleration-deceleration measurement mechanism 80 of the rotation acceleration-deceleration that detects gig 60.Acceleration measurement device 80 link to each other with controller 40 and the rotation acceleration that detects gig 60 during greater than default rotation acceleration or brake shoe when being in braking position gig rotate deceleration/decel and exceed that controller 40 control annunciators 30 send warning when rotating the deceleration/decel preset range.Because at glancing impact, the speed of gig 60 is reduced to zero needs a time course.In this process, if the rotation deceleration/decel of gig 60 excessive (herein being with regard to its absolute value), then there is following problem: on the one hand, if in gig 60 object that the promotes process descending with certain speed, brake such as cage, then the pulling force that bears of gig 60 used cable wires might be excessive, if when surpassing the maximum safe limit of this cable wire, causes the fracture of cable wire easily, and the wearing and tearing that strengthened brake shoe 12, reduced the service life that this gig is braked equipment 100.On the other hand, if brake, the dangerous situation that gig 60 object that promotes relaxes such as cage upthrow, cable wire might appear then in gig 60 object that the promotes process up with certain speed such as cage.In addition, if gig rotates deceleration/decel too small (being equally with regard to its absolute value) herein when brake shoe is in braking position, braking failure is described.Therefore, need to set the rotation deceleration/decel preset range that gig rotates.Moreover, gig 60 in operational process also may because of certain reason cause the emergency situation that falls in the mode of for example free-falling body such as cage of the object that promotes.Therefore, needing the maximum rotation acceleration/accel of setting gig is above-mentioned default rotation acceleration.Under above situation, send warning by controller 40 control annunciators 30, so that adopt an effective measure the rotation acceleration-deceleration of gig 60 is forced to be controlled in the safe range, further improve the safety performance of gig 60.
According to an embodiment of the present utility model, gig braking equipment 100 further comprises electric permanent brake snub control setup 90.This electric permanent brake snub control setup 90 links to each other with controller 40.Causing braking failure because of reasons such as brake shoe 12, retarding springs 14 and causing because of other reasons under the situation of the excessive or super scope of deceleration/decel of the rotation acceleration of gig 60, when sending warning by controller 40, the permanent brake snub control setup 90 of controller 40 controls makes the drive motor 200 of gig 60 make gig 60 ramp to stop with constant deceleration/decel, with timely parking maintenance, eliminate fault.Thereby improve gig 60 traveling comforts and safety.Permanent brake snub control setup 90 can be a permanent brake snub control setup of the prior art, and this is known for the ordinary skill in the art, is not described in detail here.
In sum, be according to brake block abrasion, retarding spring performance, brake positive pressure, actuating mechanism oil pressure, the monitoring of gig rotation acceleration and alarm, brake inefficacy and adopt the synthetical restraint control convenience of electric permanent brake snub according to gig braking equipment of the present utility model in one, the inefficacy of gig braking be can effectively prevent, gig reliability of operation and safety improved.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (8)
1, a kind of gig braking equipment, comprise brake disc, brake shoe, the retarding spring that links to each other with brake shoe, drive the actuating mechanism of brake shoe, it is characterized in that, described gig braking equipment also comprises: annunciator, controller and the displacement detector that detects the brake shoe displacement, wherein said controller link to each other with annunciator with displacement detector so that described controller control annunciator when displacement detector detects displacement that brake shoe moves towards braking position from the release position greater than first preset displacement sends the brake shoe Failure Alarm and/or controls annunciator in detected described displacement during less than second preset displacement and send the retarding spring Failure Alarm.
2, gig braking equipment as claimed in claim 1 is characterized in that described displacement detector is a displacement pickup.
3, gig braking equipment as claimed in claim 1 is characterized in that described displacement detector is the precise stroke switch.
4, gig braking equipment as claimed in claim 1, it is characterized in that, described actuating mechanism is a hydraulic actuating unit, wherein said gig braking equipment further comprises the oil pressure detecting device of detective liquid hydraulic circuit oil pressure, and described oil pressure detecting device links to each other with controller so that controller control annunciator sends the braking failure warning when the detected oil pressure of oil pressure detecting device is greater than default oil pressure after hydraulic actuating unit discharges brake shoe.
5, gig braking equipment as claimed in claim 1, it is characterized in that, described gig braking equipment further comprises the brake positive pressure detecting device that detects the Block brake positive pressure, described brake positive pressure detecting device link to each other with controller and detected brake positive pressure during less than default brake positive pressure controller control annunciator send the braking failure warning.
6, gig braking equipment as claimed in claim 5 is characterized in that described brake positive pressure detecting device is a pressure sensor.
7, gig braking equipment as claimed in claim 1, it is characterized in that, described gig braking equipment further comprises and detects the acceleration-deceleration measurement mechanism that gig rotates acceleration-deceleration, described acceleration-deceleration measurement mechanism link to each other with controller and when detecting the gig rotation acceleration greater than default rotation acceleration or brake shoe be in braking position and gig rotates deceleration/decel and exceeds when rotating the deceleration/decel preset range controller and control annunciator and send warning.
8, as each described gig braking equipment among the claim 1-7, it is characterized in that, further comprise electric permanent brake snub control setup, described electric permanent brake snub control setup links to each other with controller and controls the drive motor of electric holding braking device braking gig to send described controller when reporting to the police at annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097206U CN201411344Y (en) | 2009-06-26 | 2009-06-26 | Braking device for lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097206U CN201411344Y (en) | 2009-06-26 | 2009-06-26 | Braking device for lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201411344Y true CN201411344Y (en) | 2010-02-24 |
Family
ID=41713231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201097206U Expired - Lifetime CN201411344Y (en) | 2009-06-26 | 2009-06-26 | Braking device for lifting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201411344Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275795A (en) * | 2011-06-10 | 2011-12-14 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102767583A (en) * | 2012-07-27 | 2012-11-07 | 徐州工业职业技术学院 | Pulse brake applicable to ascending and descending drive devices |
| CN103486170A (en) * | 2013-09-03 | 2014-01-01 | 洛阳翔霏机电科技有限责任公司 | Online monitoring system of disc brake for elevator |
| CN103613038A (en) * | 2013-11-26 | 2014-03-05 | 国家电网公司 | Ground jack |
| CN111043191A (en) * | 2019-12-07 | 2020-04-21 | 徐州东兴能源有限公司 | Braking device of coke mine hoist |
| CN114314264A (en) * | 2022-01-07 | 2022-04-12 | 中国矿业大学 | Friction rail-climbing driving type cordless elevator system capable of being arranged in one well and multiple ladders |
-
2009
- 2009-06-26 CN CN2009201097206U patent/CN201411344Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275795A (en) * | 2011-06-10 | 2011-12-14 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102275795B (en) * | 2011-06-10 | 2013-10-30 | 中国矿业大学 | Constant decelerating braking conversion device |
| CN102767583A (en) * | 2012-07-27 | 2012-11-07 | 徐州工业职业技术学院 | Pulse brake applicable to ascending and descending drive devices |
| CN103486170A (en) * | 2013-09-03 | 2014-01-01 | 洛阳翔霏机电科技有限责任公司 | Online monitoring system of disc brake for elevator |
| CN103613038A (en) * | 2013-11-26 | 2014-03-05 | 国家电网公司 | Ground jack |
| CN103613038B (en) * | 2013-11-26 | 2017-01-25 | 国家电网公司 | Ground jack and control method thereof |
| CN111043191A (en) * | 2019-12-07 | 2020-04-21 | 徐州东兴能源有限公司 | Braking device of coke mine hoist |
| CN114314264A (en) * | 2022-01-07 | 2022-04-12 | 中国矿业大学 | Friction rail-climbing driving type cordless elevator system capable of being arranged in one well and multiple ladders |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201411344Y (en) | Braking device for lifting machine | |
| CN1796261B (en) | Elevator system with braking unit and method to keep the elevator stopped | |
| CN103261073B (en) | There is the lift facility of car and counterweight | |
| FI119877B (en) | Elevator security | |
| CN103261075B (en) | The operation of falling protector | |
| CN101311095B (en) | Velocity limiter for elevator device and conveyor devices comprising the velocity limiter | |
| CN101085661B (en) | Braking device for an elevator car and elevator system possessing the brake device | |
| CN103502131B (en) | For recovering method and the configuration of the brake force of the brake of elevator | |
| CN104781175B (en) | There is the elevator of deadman's brake | |
| CN110002308B (en) | Method for monitoring braking capacity of elevator brake in real time | |
| CN101624157B (en) | System for maintaining brake device of elevator | |
| US20090294220A1 (en) | Elevator car brake with shoes actuated by springs coupled to gear drive assembly | |
| CN101927925A (en) | Braking device of hoisting machine | |
| US20120000729A1 (en) | Over-acceleration and over-speed detection and processing system | |
| CN101287670B (en) | Elevator with electronic urgent safety clamp | |
| US11242220B2 (en) | Safety braking systems for elevators | |
| CN103517864A (en) | Arrangement for actuating and restoring intercepting apparatus | |
| CN104768862A (en) | Movement-monitoring system of a lift installation | |
| CN102639422A (en) | Detector for electromagnetic brake | |
| AU2004224888A1 (en) | Brake for a lift | |
| CN101927926A (en) | Braking control method of hoisting machine | |
| CN107000983B (en) | Elevator brake monitoring | |
| CN107215798B (en) | Brake performance early warning system of hydraulic crane hoisting mechanism | |
| CN210103211U (en) | Device for monitoring brake state of elevator brake | |
| US5535622A (en) | Brake performance monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |