CN201245412Y - Brake protector for hoisting mechanism of crane - Google Patents
Brake protector for hoisting mechanism of crane Download PDFInfo
- Publication number
- CN201245412Y CN201245412Y CNU2008200413112U CN200820041311U CN201245412Y CN 201245412 Y CN201245412 Y CN 201245412Y CN U2008200413112 U CNU2008200413112 U CN U2008200413112U CN 200820041311 U CN200820041311 U CN 200820041311U CN 201245412 Y CN201245412 Y CN 201245412Y
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- CN
- China
- Prior art keywords
- hoisting mechanism
- crane hoisting
- slide block
- protection device
- electromagnet
- 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 - Fee Related
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Abstract
The utility model discloses a brake protection device for crane hoisting mechanism. The brake protection device comprises a sensor which is used for detecting the rotation of the wound roll, a ratchet wheel which is fixed by the same shaft with the main shaft of the crane hoisting mechanism or the wound roll and at least a push pawl component which is arranged around the ratchet wheel. A motor power-down signal from the crane hoisting mechanism controls the switch-in of the power supply of the sensor. The push pawl component is provided with a push pawl. The push pawl can control the joggle with the ratchet wheel according to the detecting signal of the sensor so as to brake the main shaft of the crane hoisting mechanism or the rotation of the wound roll. The utility model can be started at emergency when the power of the motor of the crane hoisting mechanism is lost and detects whether the main shaft of the crane hoisting mechanism or the wound roll rotates. Once the main shaft or the wound roll rotates, the protection device is started immediately and brakes the main shaft of the crane hoisting mechanism or the wound roll so as to avoid the heavy objects from sliding down. Damages because of goods dropping or unnecessary injury to human body because of high-temperature liquid overflow can be effectively avoided and prevented to guarantee safety.
Description
Technical field
The utility model relates to the crane hoisting mechanism fender guard, particularly a kind of fender guard that prevents that when crane hoisting mechanism motor, the unexpected dead electricity of drg crane hoisting mechanism main shaft or reel from rotating.
Background technology
Alternately control motor by up relay and descending relay during the crane hoisting mechanism operation and rotate, when up relay closes, the motor up direction rotates; When descending relay closes, the motor down direction rotates.Need to be equipped with drg in the hoisting crane operational process simultaneously, prevent that the crane hoisting mechanism operation is malfunctioning, cause weight downslide on the reel.If but the descending rotation of hoist roller might appear in also et out of order (malfunctioning or invalid) of intrinsic drg, thus the weight tenesmus, contingency is inevitable, particularly hang high-temp liquid at hoisting crane, safety can't guarantee that therefore potential safety hazard is very big when the crane motor dead electricity.
Summary of the invention
In order to remedy above deficiency; the utility model provides a kind of brake protection device for crane hoisting mechanism; can be when crane hoisting mechanism motor dead electricity occurring emergency starting; and detect the crane hoisting mechanism main shaft or whether reel rotates; in case rotation is arranged; this fender guard starts immediately and crane hoisting mechanism main shaft or reel is checked; make weight can not continue to glide; can effectively prevent from, avoid goods to cause because of falling damaging or cause high-temp liquid to overflow human body is produced unnecessary damages, guarantee safety.
The technical solution of the utility model is such realization: a kind of brake protection device for crane hoisting mechanism; comprise the sensor that detects reel and rotate, be located at the assembly of pawling of this ratchet perimembranous with crane hoisting mechanism main shaft or the co-axially fixed ratchet of reel and at least one; this crane hoisting mechanism motor ct-off signal is controlled the access of this probe power; this assembly of pawling has pawls, thereby this is pawled and can check hoisting crane main shaft or reel rotation according to this sensor signal control and this ratchet engaged.
As further improvement of the utility model, this assembly of pawling also comprises the slide block box that is slidingly fixed on L type frame bottom, this pawl be placed in this slide block box and the middle part rotational fixation in L type frame bottom, be fixed with between this slide block box one side and this L type stent side portion and can drive this slide block box and move and eject the 3rd back-moving spring that this is pawled, this slide block box opposite side cylinder lever connecting rod, be positioned at that this tie rod end is provided with this pull bar of energy adhesive and the slide block box moves and this is pawled and be closed in first electromagnet of this slide block box, also be provided with the hitch gear that an energy slides according to this pull bar of this sensor signal control on this pull bar, this first electromagnet makes electricity by the up time control of this crane hoisting mechanism electric motor starting, and time-delay back control dead electricity.
As further improvement of the utility model, this first electromagnet gets electric adhesive by slug relay's start-up control, and by slug relay's control dead electricity, this slug relay gets electric signal control by the crane hoisting mechanism motor and opens, and closes after the time-delay after finishing.
As further improvement of the utility model, also be provided with between this tie rod end and this first electromagnet and be convenient to drive this pull bar and slide block box and move the back and eject this first compression spring of pawling.
As further improvement of the utility model, this hitch gear comprises that this pull bar sidepiece is provided with position-limited trough, can extend into the hook in this position-limited trough and connects second electromagnet of this hook by second compression spring, and this second electromagnet gets electric adhesive by this sensor signal control.
As further improvement of the utility model, this L type frame bottom between this L type stent side portion and this slide block also is provided with a normally closed malfunctioning switch, and this normally closed malfunctioning switch is series in the descending relay control circuit of crane hoisting mechanism motor simultaneously.
As further improvement of the utility model, this L type stent side portion is fixed with the bump rubber that can bear this slide block bump.
Useful technique effect of the present utility model is: when crane hoisting mechanism motor dead electricity; this probe power inserts; whether this fender guard at first has rotation by sensor crane hoisting mechanism main shaft or reel; in case detect rotation; just control the ejection of pawling on this assembly of pawling, and and ratchet engaged, because this coaxial ratchet is fixed in hoist roller or main shaft; check main shaft or reel so this is pawled, prevented that hoisting crane main shaft or reel from rotating downslide.
When crane hoisting mechanism starts for the first time, the described assembly of pawling is by this first electromagnetic actuation, and by the related slide block box pulling of pull bar, this is pawled be closed in this slide block box, and the hook by this pull bar sidepiece is supported in this pull bar upper limit position groove, the realization assembly of pawling is ready, this first electromagnet gets electric adhesive by slug relay's start-up control, dead electricity is controlled in the time-delay back simultaneously, this slug relay is started by the crane hoisting mechanism electric power switch, after starting normally, slug relay closes, this first electromagnet dead electricity.
If crane motor dead electricity, this sensor just starts and detects the lifting mechanism main shaft or whether reel rotates, in case main shaft or reel rotate, just controlling this second electromagnet gets, adhesive should be linked up with, make this hook withdraw from position-limited trough on this pull bar, this assembly of pawling drives this slide block box and moves and eject and pawl under the 3rd back-moving spring and the first compression spring effect, thereby makes this pawl and ratchet engaged.
In order to prevent that this first electromagnet is malfunctioning or the suction-combining force is not enough, this pull bar upper limit position groove adhesive is not linked up with to this, this is pawled and is not taken in this slide block box, make this pull bar and slide block box bounce back into this L type stent side portion, should normally closedly prevent malfunctioning switch opens, because this normally closed anti-malfunctioning switch is serially connected with in this descending relay control circuit simultaneously, makes this descending relay electric-loss, the crane hoisting mechanism motor is descending so still can't move.
Description of drawings
The structural representation of Fig. 1 for pawling described in the utility model when being in closed condition (hoisting crane normally moves);
The structural representation of Fig. 2 for pawling described in the utility model when being in ejection state (hoisting crane breaks down);
Fig. 3 is provided with the structural representation of two assemblies of pawling for reel perimembranous described in the utility model.
The specific embodiment
In conjunction with Fig. 1, Fig. 2 be further described below Fig. 3:
A kind of brake protection device for crane hoisting mechanism; comprise the sensor that detects reel 1 and rotate, be located at the assembly 4 of pawling of these ratchet 3 perimembranous with crane hoisting mechanism main shaft or the co-axially fixed ratchet 3 of reel (being shown as ratchet among the figure fixes with reel is coaxial) and at least one; this crane hoisting mechanism motor ct-off signal is controlled the access of this probe power; this assembly of pawling has pawls 41, thereby this is pawled and can check crane hoisting mechanism main shaft or reel rotation according to this sensor signal control and 3 engagements of this ratchet.
This assembly of pawling also comprises the slide block box 42 that is slidingly fixed on L type support 6 bottoms, this pawl be placed in this slide block box and the middle part rotational fixation in L type support 6 bottoms, be fixed with between this slide block box one side and this L type support 6 sidepieces and can drive this slide block box and move and eject the 3rd back-moving spring 43 that this is pawled, this slide block box opposite side cylinder lever connecting rod 44, be positioned at that this tie rod end is provided with this pull bar of energy adhesive and the slide block box moves and this is pawled and be closed in first electromagnet 46 of this slide block box, also be provided with the hitch gear 5 that an energy slides according to this pull bar of this sensor signal control on this pull bar 44, this first electromagnet 46 gets electric adhesive by slug relay's start-up control, dead electricity is controlled in the time-delay back simultaneously, this slug relay is started by the crane hoisting mechanism electric power switch, specifically, when this lifting mechanism motor power inserts for the first time, this slug relay starts, this slug relay is in the time-delay stage, this first electromagnet 46, this is pawled to finish and closes and locked by this hitch gear 5, after time-delay finished, this first electromagnet 46 was with regard to dead electricity.Also be provided with between this tie rod end and this first electromagnet 46 simultaneously and be convenient to drive this pull bar and slide block box and move the back and eject this first compression spring 45 of pawling.
This hitch gear 5 comprises that these pull bar 44 sidepieces are provided with position-limited trough 441, can extend into the hook 51 in this position-limited trough and pass through second electromagnet 53 that second compression spring 52 connects these hooks, and this second electromagnet gets electric adhesive by this sensor signal control.
This L type frame bottom between this L type stent side portion and this slide block also is provided with a normally closed malfunctioning switch 7, this normally closed malfunctioning switch is series in the descending relay control circuit of crane motor lifting mechanism simultaneously, and this L type stent side portion is fixed with the bump rubber that can bear this slide block bump.
The principle of work of described fender guard is like this:
1) during for the first time up startup of crane hoisting mechanism, this slug relay also starts, and control this first electromagnet 46 electric adhesive, the described assembly 4 of pawling is by these first electromagnet, 46 adhesives, and by pull bar 44 related slide block box 42 pullings, this is pawled 41 is closed in this slide block box 42, and is supported in this pull bar upper limit position groove 441 (as shown in Figure 1) by the hook 51 of this pull bar sidepiece, and the assembly of realizing pawling is ready; After this slug relay's time-delay finishes, control this first electromagnet, 46 dead electricity.
When 2) normally moving, this second electromagnet 53 and first electromagnet 46 all are in power failure state.
3) when the crane hoisting mechanism fault takes place, the motor dead electricity, the intrinsic drg of hoisting crane is also malfunctioning, the power supply of this sensor is switched on, this sensor just starts and detects the lifting mechanism main shaft or whether reel 1 rotates, in case main shaft or reel 1 rotate, just controlling this second electromagnet 53 gets, adhesive should link up with 51, make this hook 51 withdraw from position-limited trough 441 on this pull bar 44, this assembly of pawling drives this slide block box 42 and moves and eject and pawl 41 under the 3rd back-moving spring 43 and 45 effects of first compression spring, thus make this pawl 41 with ratchet 3 engagements, (as shown in Figure 2), check this reel.
4) after eliminating the lifting trouble removal, the up motor of lifting mechanism gets, this first electromagnet 46 gets under slug relay's control, and adhesive pull bar 44, slide block box 42 moves to right (as shown in Figure 1) in this assembly 4 of pawling, these second electromagnet, 53 dead electricity meanwhile, this hook 51 under the effect of second compression spring 52 by bullet in these pull bar 44 upper limit position grooves 441, the assembly 4 of having realized pawling is closed this and is pawled after 41, and this pull bar 44 is in the lock state.
If this first electromagnet 46 is failed 44 adhesives of this pull bar, this hook 51 fails to be positioned in this position-limited trough 441, this L type frame bottom between these L type support 6 sidepieces and this slide block box 42 also was provided with a normally closed malfunctioning switch 7 and was opened this moment, because this normally closed malfunctioning switch is series in the descending relay control circuit of hoisting crane simultaneously, therefore descending relay disconnects, and crane hoisting mechanism still can not descendingly rotate.
Load difference according to the hoisting crane operation, also can be provided with a plurality of this assembly of pawling in crane hoisting mechanism main shaft or reel perimembranous, control this a plurality of assemblies of pawling simultaneously by one or more sensor signals, check crane hoisting mechanism main shaft or reel effectively, Fig. 3 represents to have two assemblies of pawling to be located at this reel perimembranous.
In this example, lifting mechanism can be described as hoisting mechanism again.
Claims (7)
1, a kind of brake protection device for crane hoisting mechanism; it is characterized in that: comprise the sensor that detects reel (1) and rotate, be located at the assembly of pawling (4) of this ratchet (3) perimembranous with crane hoisting mechanism main shaft or the co-axially fixed ratchet of reel (3) and at least one; this crane hoisting mechanism motor ct-off signal is controlled the access of this probe power; this assembly of pawling has pawl (41), this pawl can be according to this sensor signal control and this ratchet (3) thus the crane hoisting mechanism main shaft is checked in engagement or reel rotates.
2; a kind of brake protection device for crane hoisting mechanism as claimed in claim 1; it is characterized in that: this assembly of pawling also comprises the slide block box (42) that is slidingly fixed on L type support (6) bottom; this pawl be placed in this slide block box and the middle part rotational fixation in L type support (6) bottom; be fixed with between this slide block box one side and this L type support (6) sidepiece and can drive this slide block box and move and eject the 3rd back-moving spring (43) that this is pawled; this slide block box opposite side cylinder lever connecting rod (44); be positioned at that this tie rod end is provided with this pull bar of energy adhesive and the slide block box moves and with this first electromagnet (46) of pawling and being closed in this slide block box; also be provided with the hitch gear (5) that an energy slides according to this pull bar of this sensor signal control on this pull bar (44); this first electromagnet (46) makes electricity by the up startup control of this crane hoisting mechanism motor, and time-delay back control dead electricity.
3, a kind of brake protection device for crane hoisting mechanism as claimed in claim 2; it is characterized in that: this first electromagnet (46) gets electric adhesive by slug relay's start-up control; dead electricity is controlled in the time-delay back simultaneously; this slug relay gets electric signal control by the crane hoisting mechanism motor and opens, and closes after the time-delay.
4, a kind of brake protection device for crane hoisting mechanism as claimed in claim 2 is characterized in that: also be provided with between this tie rod end and this first electromagnet (46) and be convenient to drive this pull bar and slide block box and move the back and eject this first compression spring (45) of pawling.
5, a kind of brake protection device for crane hoisting mechanism as claimed in claim 2; it is characterized in that: this hitch gear (5) comprises that this pull bar (44) sidepiece is provided with position-limited trough (441), can extend into the hook (51) in this position-limited trough and connects second electromagnet (53) of this hook by second compression spring (52), and this second electromagnet gets electric adhesive by this sensor signal control.
6, a kind of brake protection device for crane hoisting mechanism as claimed in claim 2; it is characterized in that: this L type frame bottom between this L type stent side portion and this slide block also is provided with a normally closed malfunctioning switch (7), and this normally closed malfunctioning switch is series in the descending relay control circuit of crane hoisting mechanism motor simultaneously.
7, a kind of brake protection device for crane hoisting mechanism as claimed in claim 2 is characterized in that: this L type stent side portion is fixed with the bump rubber that can bear this slide block bump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200413112U CN201245412Y (en) | 2008-08-06 | 2008-08-06 | Brake protector for hoisting mechanism of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200413112U CN201245412Y (en) | 2008-08-06 | 2008-08-06 | Brake protector for hoisting mechanism of crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201245412Y true CN201245412Y (en) | 2009-05-27 |
Family
ID=40729229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200413112U Expired - Fee Related CN201245412Y (en) | 2008-08-06 | 2008-08-06 | Brake protector for hoisting mechanism of crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201245412Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643183A (en) * | 2008-08-06 | 2010-02-10 | 陈超 | Brake protection device for crane hoisting mechanism |
| CN101683959A (en) * | 2008-09-27 | 2010-03-31 | 陈超 | Brake protection device of crane hoisting mechanism |
| CN105091933A (en) * | 2015-08-21 | 2015-11-25 | 安徽省无为县正大羽毛制品有限责任公司 | Badminton detector |
| CN105080082A (en) * | 2015-08-21 | 2015-11-25 | 安徽省无为县正大羽毛制品有限责任公司 | Shuttlecock hitting device of shuttlecock detecting machine |
| CN105148465A (en) * | 2015-08-21 | 2015-12-16 | 安徽省无为县正大羽毛制品有限责任公司 | Stop device of ball hitting device |
| CN110215645A (en) * | 2019-06-27 | 2019-09-10 | 山东体育学院 | A kind of spring weight training device |
| CN111692242A (en) * | 2020-05-13 | 2020-09-22 | 包志国 | Power-off protection device for crane |
| CN111777000A (en) * | 2020-07-14 | 2020-10-16 | 熊卫明 | Elevator speed limiting device for power maintenance |
-
2008
- 2008-08-06 CN CNU2008200413112U patent/CN201245412Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101643183A (en) * | 2008-08-06 | 2010-02-10 | 陈超 | Brake protection device for crane hoisting mechanism |
| CN101683959A (en) * | 2008-09-27 | 2010-03-31 | 陈超 | Brake protection device of crane hoisting mechanism |
| CN105091933A (en) * | 2015-08-21 | 2015-11-25 | 安徽省无为县正大羽毛制品有限责任公司 | Badminton detector |
| CN105080082A (en) * | 2015-08-21 | 2015-11-25 | 安徽省无为县正大羽毛制品有限责任公司 | Shuttlecock hitting device of shuttlecock detecting machine |
| CN105148465A (en) * | 2015-08-21 | 2015-12-16 | 安徽省无为县正大羽毛制品有限责任公司 | Stop device of ball hitting device |
| CN110215645A (en) * | 2019-06-27 | 2019-09-10 | 山东体育学院 | A kind of spring weight training device |
| CN111692242A (en) * | 2020-05-13 | 2020-09-22 | 包志国 | Power-off protection device for crane |
| CN111777000A (en) * | 2020-07-14 | 2020-10-16 | 熊卫明 | Elevator speed limiting device for power maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: WANG PEIJUN Effective date: 20121128 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121128 Address after: 215300 room 17-204, Xun Tong commercial court, Yushan Town, Kunshan, Jiangsu Patentee after: Chen Chao Address before: 215300 room 17-204, Xun Tong commercial court, Yushan Town, Kunshan, Jiangsu Patentee before: Chen Chao Patentee before: Wang Peijun |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20130806 |