CN204012899U - Tower machine accident power-off rotary braking protection power source - Google Patents
Tower machine accident power-off rotary braking protection power source Download PDFInfo
- Publication number
- CN204012899U CN204012899U CN201420323391.6U CN201420323391U CN204012899U CN 204012899 U CN204012899 U CN 204012899U CN 201420323391 U CN201420323391 U CN 201420323391U CN 204012899 U CN204012899 U CN 204012899U
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- Prior art keywords
- batteries
- charging
- module
- tower machine
- discharge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000002142 lead-calcium alloy Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Secondary Cells (AREA)
Abstract
The utility model relates to construction safety, be specifically related to a kind of tower machine accident power-off rotary braking protection power source, comprise batteries, emergency stop switch and the main contactor that opens, also comprise charging module, charging and discharging relay and discharge module, charging module and discharge module are all connected to the two poles of the earth of batteries, the normally-closed contact of charging and discharging relay is connected between charging module and batteries, the normally opened contact of charging and discharging relay is connected between discharge module and batteries, described emergency stop switch is connected in total loop, the normally-closed contact control batteries that always opens contactor is communicated with total loop.Owing to being provided with a kind of protection power source in its loop, can guarantee when tower machine self electric-controlled system fault or dead electricity, still can guarantee tower machine revolution skidding.
Description
Technical field
The utility model relates to construction safety, is specifically related to a kind of tower machine accident power-off rotary braking protection power source.
Background technology
In the prior art, tower machine is when normal use, if extraneous, have a power failure suddenly or because tower machine self electric-controlled system fault reason causes tower Electrical Control system dead electricity, because the revolution brake of tower machine belongs to open in usual, energising braking, the main contactor that opens cannot be closed by emergency stop switch, thereby tower machine revolution brake cannot be braked, now crane arm is just rotated further and likely bumps against with building or barrier around under the effect of inertia, and then cause casualties or economic loss, cause serious accident.
Utility model content
The defect existing for above-mentioned prior art, technical problem to be solved in the utility model is to provide a kind of protection power source, can guarantee when tower machine self electric-controlled system fault or dead electricity, still can guarantee tower machine revolution skidding.
In order to solve the problems of the technologies described above, the utility model provides a kind of tower machine accident power-off rotary braking protection power source, comprise batteries, emergency stop switch and the main contactor that opens, also comprise charging module, charging and discharging relay and discharge module, charging module and discharge module are all connected to the two poles of the earth of batteries, the normally-closed contact of charging and discharging relay is connected between charging module and batteries, the normally opened contact of charging and discharging relay is connected between discharge module and batteries, described emergency stop switch is connected in total loop, the normally-closed contact control batteries that always opens contactor is communicated with total loop.
Adopt the tower machine accident power-off rotary braking protection power source of said structure; because charging module is connected to the two poles of the earth of batteries; thereby in the normal use of tower machine; can charge a battery by intelligent charging module; again because emergency stop switch is connected in total loop; when tower Electrical Control system accident power-off, storage battery can provide voltage, thereby driver can be braked by emergency stop switch.Owing to always opening the normally-closed contact control batteries of contactor, be communicated with total loop, when tower machine normally moves, this normally-closed contact disconnects, even if misoperation brake button can not cause slew gear undesirable emergency braking yet.Thereby can guarantee to avoid in tower machine normal course of operation, operator's misoperation emergency stop switch causes brake hard, damage turning motor or cause security incident.
As the improvement of the above-mentioned tower machine of the utility model accident power-off rotary braking protection power source, described batteries is that more than one rechargeable battery forms.
As the further improvement to tower machine accident power-off rotary braking protection power source preferred version, described discharge module comprises discharge resistance and time switch, and described discharge resistance is 500 Ω～2000 Ω.
As the step again to tower machine accident power-off rotary braking protection power source preferred version, improve, also comprise and discharge and recharge Intelligent management module, described in discharge and recharge Intelligent management module and be connected in parallel on batteries two ends; This discharges and recharges Intelligent management module and comprises step-down power supply unit, temperature detecting unit, voltage detection unit, monomer control unit and main control chip.
Adopt after such structure, owing to discharging and recharging Intelligent management module, be connected in parallel on batteries two ends, thereby can discharge and recharge Intelligent management module by controlling this, the break-make in timing controlled storage battery power supply loop monthly, storage battery is discharged, and then avoid the electric energy of accumulating because of the long-time charging of storage battery again less than release, go down for a long time and will reduce the activity of battery, cause cell output voltage not reach work required voltage, once can not bring into play due effect when needed.
Accompanying drawing explanation
Fig. 1 is the control circuit schematic diagram of the utility model tower machine accident power-off rotary braking protection power source embodiment.
embodiment
Below in conjunction with drawings and Examples, technical solutions of the utility model are described in further detail:
As shown in Figure 1; the tower machine accident power-off rotary braking protection power source of a kind of embodiment of the utility model, comprises emergency stop switch SSJ, the main batteries that opens contactor, charging module, charging and discharging relay K A1, discharge module, discharges and recharges Intelligent management module and be comprised of two rechargeable batteries.Discharge and recharge the two poles of the earth that Intelligent management module, charging module and discharge module are all connected to batteries, the normally-closed contact of charging and discharging relay K A1 is connected between charging module and batteries, the normally opened contact of charging and discharging relay K A1 is connected between discharge module and batteries, described emergency stop switch SSJ is connected in total loop, and the normally-closed contact control batteries that always opens contactor KM is communicated with total loop.When batteries dump energy lower than specified electric quantity 70% time, discharging and recharging Intelligent management module will be to batteries automatic charging, until reach the float charge voltage of 13.5V.
This discharge module comprises discharge resistance R3 and time switch I1, and this discharge resistance R3 is 500 Ω～2000 Ω, and preferably discharge resistance R3 is 1500 Ω.
This discharges and recharges Intelligent management module and comprises step-down power supply unit, temperature detecting unit, voltage detection unit, monomer control unit and main control chip.
In the normal use of tower machine, can charge a battery by charging module; When tower Electrical Control system accident power-off, storage battery can provide voltage and then allow driver brake by emergency stop switch SSJ.
When tower machine normally moves, this normally-closed contact disconnects, even if misoperation brake button can not cause slew gear undesirable emergency braking yet.And then can avoid in tower machine normal course of operation, operator's misoperation emergency stop switch SSJ causes brake hard, damages turning motor or causes security incident.
By controlling this charge/discharge control circuit, monthly the break-make in timing controlled storage battery power supply loop, carries out constant-current discharge to storage battery, and discharging current is 1.2A, and be set as 30 minutes each discharge time.Can avoid the electric energy of accumulating because of the long-time charging of storage battery again less than release, go down for a long time and will reduce the activity of battery, cause cell output voltage not reach work required voltage, once can not bring into play due effect when needed.
This storage battery adopts valve controlled sealed lead-acid accumulator, realizes closed maintenance free.Storage battery has adopted lead-calcium alloy slab lattice, has improved release hydrogen current potential, has suppressed the generation of hydrogen, makes self-discharge rate reduce simultaneously; Utilized the characteristic of negative electrode active material spongy lead, suppressed water minimizing and need not supplementing water; Adopted Novel super-thin glass fibre separator, its porosity can reach more than 90%, the tight trim designs of lean solution make oxygen be easy to be passed to negative pole again chemical combination be water; In charging terminal stage or in overcharge situation, the moisture content of electrolyte is being decomposed in rechargeable energy consumption, thereby positive plate produces oxygen, and spongy lead and the sulfuric acid of this oxygen and negative plate react, make oxygen again chemical combination be water.A part of negative plate becomes discharge condition simultaneously, has therefore also suppressed negative plate hydrogen and has produced.The negative material that becomes discharge condition with oxygen reaction is through overcharging and returning to original spongy lead.
Below by reference to the accompanying drawings to described be only preferred implementation of the present utility model; but the utility model is not limited to above-mentioned execution mode; should be understood that; for a person skilled in the art; do not departing under the prerequisite of the utility model structure; can also make various distortion and improvement, these also should be considered as protection range of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (4)
1. tower machine accident power-off rotary braking protection power source; comprise batteries, emergency stop switch and the main contactor that opens; it is characterized in that: also comprise charging module; charging and discharging relay and discharge module; charging module and discharge module are all connected to the two poles of the earth of batteries; the normally-closed contact of charging and discharging relay is connected between charging module and batteries; the normally opened contact of charging and discharging relay is connected between discharge module and batteries; described emergency stop switch is connected in total loop, and the normally-closed contact control batteries that always opens contactor is communicated with total loop.
2. tower machine accident power-off rotary braking protection power source according to claim 1, is characterized in that: described batteries is that more than one rechargeable battery forms.
3. tower machine accident power-off rotary braking protection power source according to claim 1, is characterized in that: described discharge module comprises discharge resistance and time switch, and described discharge resistance is 500 Ω～2000 Ω.
4. tower machine accident power-off rotary braking protection power source according to claim 1, is characterized in that: also comprise and discharge and recharge Intelligent management module, described in discharge and recharge Intelligent management module and be connected in parallel on batteries two ends; This discharges and recharges Intelligent management module and comprises step-down power supply unit, temperature detecting unit, voltage detection unit, monomer control unit and main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323391.6U CN204012899U (en) | 2014-06-18 | 2014-06-18 | Tower machine accident power-off rotary braking protection power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420323391.6U CN204012899U (en) | 2014-06-18 | 2014-06-18 | Tower machine accident power-off rotary braking protection power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012899U true CN204012899U (en) | 2014-12-10 |
Family
ID=52052841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420323391.6U Expired - Fee Related CN204012899U (en) | 2014-06-18 | 2014-06-18 | Tower machine accident power-off rotary braking protection power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555764A (en) * | 2015-01-05 | 2015-04-29 | 深圳市英威腾电气股份有限公司 | Rotary braking system and tower crane control system |
| CN105084146A (en) * | 2015-09-01 | 2015-11-25 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
-
2014
- 2014-06-18 CN CN201420323391.6U patent/CN204012899U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104555764A (en) * | 2015-01-05 | 2015-04-29 | 深圳市英威腾电气股份有限公司 | Rotary braking system and tower crane control system |
| CN105084146A (en) * | 2015-09-01 | 2015-11-25 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
| CN105084146B (en) * | 2015-09-01 | 2017-05-24 | 深圳市英威腾电气股份有限公司 | Brake detection method and system of construction lifter frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |