CN202704896U - Crane and protection device for telescopic boom of same - Google Patents
Crane and protection device for telescopic boom of same Download PDFInfo
- Publication number
- CN202704896U CN202704896U CN 201220308330 CN201220308330U CN202704896U CN 202704896 U CN202704896 U CN 202704896U CN 201220308330 CN201220308330 CN 201220308330 CN 201220308330 U CN201220308330 U CN 201220308330U CN 202704896 U CN202704896 U CN 202704896U
- Authority
- CN
- China
- Prior art keywords
- telescopic
- boom
- module
- fender guard
- oil cylinder
- 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
Links
- 239000003921 oil Substances 0.000 claims description 51
- 230000009471 action Effects 0.000 claims description 10
- 239000010727 cylinder oil Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000001012 protector Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Landscapes
- Jib Cranes (AREA)
Abstract
The utility model relates to the technical field of engineering machinery, and discloses a crane and a protection device for a telescopic boom of the crane. The protection device for the telescopic boom of the crane comprises a first acquiring module, a second acquiring module, a determining module and a processing module; the first acquiring module is connected with the determining module by means of signals and is used for acquiring the resistance to the stretching and contracting of the telescopic boom; the second acquiring module is connected with the determining module by means of signals and is used for acquiring the stretching and contracting force of a telescopic cylinder; the determining module is connected with the processing module by means of signals and is used for determining whether the resistance to the stretching and contracting is more than the stretching and contracting force; and the processing module is used for sending a control signal to control the telescopic oil cylinder to stop acting once the resistance to the stretching and contracting is more than the stretching and contracting force. According to the protection device for the telescopic boom of the crane, provided by the utility model, the resistance to the stretching and contracting of the telescopic arm and the stretching and contracting force of the telescopic oil cylinder are acquired, and the telescopic oil cylinder is determined whether overload occurred according to the resistance to the stretching and contracting and the stretching and contracting force, and the signal is sent to control the telescopic oil cylinder to stop acting once overload occurred, so that the telescopic oil cylinder can be prevented from continuously acting under overload, and the telescopic arm also can be prevented from being damaged.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of hoisting crane and protector for telescopic arm thereof.
Background technology
Telescopic boom is the core physical construction of car hosit lifting, and in the course of the work, under the driving of telescopic oil cylinder, telescopic boom stretches out forward or retracts, thereby satisfies the need of work of hoisting crane.
But in the course of the work, during the caused flexible resistance of friction force when the contractility of telescopic oil cylinder is flexible greater than lift heavy amount, telescopic boom quality and telescopic boom, cause easily following fault: 1, the generations clamping stagnation such as telescopic boom or telescopic boom rope and telescopic oil cylinder continue action and cause flexible restrict etc. to be broken; 2, the lifting telescopic boom that contains super lifting device is asynchronous etc. former thereby cause super lift winch with the telescopic boom stretch bending etc. because of super lift winch when flexible, and then causes telescopic boom to damage.
Therefore, how avoiding above-mentioned fault occurring, is the technical barrier that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model is intended to propose a kind of hoisting crane and protector for telescopic arm thereof, occurs the problem that above-mentioned fault can't be carried out work to solve existing telescopic boom because of telescopic oil cylinder.
On the one hand, the utility model provides a kind of described telescopic crane boom fender guard, and the telescopic crane boom fender guard comprises:
The first acquisition module is connected with the judge module signal, is used for obtaining the flexible resistance of telescopic boom;
The second acquisition module is connected with the judge module signal, is used for obtaining the contractility of telescopic oil cylinder;
Judge module is connected with the processing module signal, is used for judging that whether described flexible resistance is greater than described contractility;
Processing module is used for sending control signal and makes telescopic oil cylinder stop action when described judge module is judged described flexible resistance greater than described contractility.
Further, described the first acquisition module comprises: the first computing module is used for respectively saving the flexible resistance that calculation of friction coefficient between the arm goes out telescopic boom according to lift heavy amount, the telescopic boom elevation angle, telescopic boom quality and telescopic boom.
Further, described telescopic crane boom fender guard also comprises: the 3rd acquisition module, be connected with described the first computing module signal, and be used for obtaining lift heavy amount and the telescopic boom elevation angle.
Further, described the 3rd acquisition module is limiter of moment, and described limiter of moment detects lift heavy amount and the telescopic boom elevation angle.
Further, described telescopic crane boom fender guard also comprises: the 4th acquisition module, be connected with described the first computing module signal, and be used for obtaining telescopic boom quality and telescopic boom and respectively save friction coefficient between the arm.
Further, described telescopic crane boom fender guard also comprises: memory module, be connected with described the 4th acquisition module signal, and be used for storage telescopic boom quality and telescopic boom and respectively save friction coefficient between the arm.
Further, described the second acquisition module comprises: the second computing module is used for calculating the contractility of telescopic oil cylinder according to the fuel pressure gage of telescopic oil cylinder.
Further, described telescopic crane boom fender guard also comprises: the 5th acquisition module, be connected with described the second computing module signal, and be used for obtaining the oil pressure of telescopic oil cylinder.
Further, described the 5th acquisition module is the pressure sensor of being located at telescopic oil cylinder oil circuit of living in.
On the other hand, the utility model also provides a kind of hoisting crane, and this hoisting crane is provided with above-mentioned each described telescopic crane boom fender guard.
A kind of telescopic crane boom fender guard and a kind of hoisting crane that the utility model provides; flexible resistance by obtaining telescopic boom and the contractility of telescopic oil cylinder; and the size according to this flexible resistance and this contractility judges whether telescopic oil cylinder transships; and send signal in when overload and make telescopic oil cylinder stop action; compared with prior art; avoided telescopic boom or telescopic boom rope etc. clamping stagnation to occur and telescopic oil cylinder continues action and the problem that causes flexible rope etc. to be broken; also avoided super lifting device with telescopic boom stretch bending and then the problem that causes telescopic boom to damage; improved the in-use performance of telescopic boom; in addition; the flexible resistance of telescopic boom can pass through the lift heavy thing; the telescopic boom elevation angle; the calculation of friction coefficient that telescopic boom quality and telescopic boom respectively save between the arm draws; the contractility of telescopic oil cylinder then can be calculated according to the oil pressure size of telescopic oil cylinder oil circuit of living in, and above-mentioned each correlation parameter can pass through limiter of moment; the modes such as pressure sensor are obtained.
Description of drawings
The structured flowchart of a kind of telescopic crane boom fender guard that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the workflow diagram of a kind of specific embodiment embodiment illustrated in fig. 1.
The specific embodiment
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection domain of the present utility model is had any restriction.In addition, under the situation of not conflicting, embodiment and the feature among the embodiment in this part can make up mutually.
As shown in Figure 1, the telescopic crane boom fender guard of this embodiment comprises: the first acquisition module 1, the second acquisition module 2, the 3rd acquisition module 3, the 4th acquisition module 4, memory module 6, judge module 7 and processing module 8.
Wherein, the first acquisition module 1 is connected with judge module 7 signals, is used for obtaining the flexible resistance of telescopic boom; The second acquisition module 2 is connected with judge module 7 signals, is used for obtaining the contractility of telescopic oil cylinder; Judge module 7 is connected with processing module 8 signals, is used for judging that whether described flexible resistance is greater than described contractility; Processing module 8 is used for sending control signal when described judge module 7 is judged described flexible resistance greater than described contractility makes telescopic oil cylinder stop action.
The first acquisition module 1 further comprises the first computing module 11, the calculation of friction coefficient that computing module 11 is used for respectively saving between the arm according to lift heavy amount, the telescopic boom elevation angle, telescopic boom quality and telescopic boom goes out the flexible resistance of telescopic boom, and the size of the resistance that will stretch sends to judge module 7; The 3rd acquisition module 3 is connected with the first computing module 11 signals, is used for obtaining lift heavy amount and the telescopic boom elevation angle, and sends it to the first computing module 11; The 4th acquisition module 4 is connected with the first computing module 11 signals, is used for obtaining telescopic boom quality and telescopic boom and respectively saves friction coefficient between the arm, and send it to the first computing module 11; Memory module 6 is connected with the 4th acquisition module 4 signals, is used for storage telescopic boom quality and telescopic boom and respectively saves friction coefficient between the arm; Preferably, the 3rd acquisition module 3 is limiter of moment (abbreviation power limit device), and this limiter of moment can detect lift heavy amount and the telescopic boom elevation angle.
The second acquisition module 2 comprises that further the second computing module 22, the second computing modules 22 are used for calculating the contractility of telescopic oil cylinder according to the fuel pressure gage of telescopic oil cylinder; The 5th acquisition module 5 is connected with the second computing module 22 signals, is used for obtaining the oil pressure of telescopic oil cylinder; Preferably, the 5th acquisition module 5 is for being located at the pressure sensor of telescopic oil cylinder oil circuit of living in.
Below in conjunction with the illustrated working process of this telescopic crane boom fender guard once of Fig. 2, as shown in Figure 2, the operating principle of this telescopic crane boom fender guard comprises the steps:
S1: beginning;
S2: telescopic boom work;
S3: the relevant correlation parameter that obtains flexible resistance;
S4: pressure sensor detects oil pressure;
S5: draw flexible resistance;
S6: draw contractility;
S7: judge that whether flexible resistance is greater than contractility;
S8: during greater than contractility, make telescopic oil cylinder stop action at flexible resistance;
S9: during less than contractility, make the telescopic oil cylinder regular event at flexible resistance;
S10: finish.
Particularly, in operation process, telescopic boom is elastic under the driving of telescopic oil cylinder, power limit device (i.e. the 3rd acquisition module 3) detects lift heavy amount and the telescopic boom elevation angle, and send it to the first acquisition module 1, and obtaining telescopic boom quality and telescopic boom from memory module 6, the 4th acquisition module 4 respectively saves friction coefficient between the arm, and send it to the first acquisition module 1, the first computing module 11 of the first acquisition module 1 goes out the size of the flexible resistance of telescopic boom according to these calculation of parameter, and sends it to judge module 7; Pressure sensor (i.e. the 5th module 5) detects the turnover oil pressure of telescopic oil cylinder, and send it to the second acquisition module 2(the second computing module 22), the second computing module 22 is calculated the contractility size of telescopic oil cylinder according to the turnover oil manometer of telescopic oil cylinder, and sends it to judge module 7; The size of the relatively flexible resistance of judge module 7 and contractility, and judged result fed back to processing module 8; If flexible resistance is greater than contractility, processing module 8 is sent signal makes telescopic oil cylinder stop action, otherwise does not deal with, and makes telescopic oil cylinder remain on normal working.
Need to prove; in above-described embodiment; the telescopic crane boom fender guard comprises for the first computing module 11 that calculates flexible resistance; in other embodiments; also can directly obtain by other means flexible resistance; for example, calculate flexible resistance and it is directly sent to judge module 7 by manual type.
Need to prove, in above-described embodiment, lift heavy amount and the telescopic boom elevation angle are detected by power limit device and are obtained, in other embodiments, can also obtain above-mentioned parameter by independent method, for example, obtain the lift heavy amount by measuring the modes such as elevator power, amplitude oil cylinder pressure, and directly obtain the telescopic boom elevation angle by modes such as angular transducers.
Need to prove that above-described embodiment calculates contractility by the second computing module 22, in other embodiments, can also realize by other means, for example, obtain contractility with the mode of indirectly measuring or calculating, and send it to judge module 7 by manual type.
Need to prove, in above-described embodiment, the friction coefficient that telescopic boom quality and telescopic boom respectively save between the arm is stored in the memory module, but in other embodiments, also can this telescopic boom quality and friction coefficient be sent to the first computing module 11 by manual type.
A kind of telescopic crane boom fender guard that the utility model embodiment provides; flexible resistance by obtaining telescopic boom and the contractility of telescopic oil cylinder; and the size according to this flexible resistance and this contractility judges whether telescopic oil cylinder transships; and send signal in when overload and make telescopic oil cylinder stop action; compared with prior art; avoided telescopic boom or telescopic boom rope etc. clamping stagnation to occur and telescopic oil cylinder continues action and the problem that causes flexible rope etc. to be broken; also avoided super lifting device with telescopic boom stretch bending and then the problem that causes telescopic boom to damage; improved the in-use performance of telescopic boom; in addition; the flexible resistance of telescopic boom can pass through the lift heavy thing; the telescopic boom elevation angle; the calculation of friction coefficient that telescopic boom quality and telescopic boom respectively save between the arm draws; the contractility of telescopic oil cylinder then can be calculated according to the oil pressure size of telescopic oil cylinder oil circuit of living in, and above-mentioned each correlation parameter can pass through limiter of moment; the modes such as pressure sensor are obtained.
The utility model embodiment also provides a kind of hoisting crane; this hoisting crane is provided with above-mentioned protector for telescopic arm; because above-mentioned protector for telescopic arm has above-mentioned technique effect; therefore; the hoisting crane that is provided with this protector for telescopic arm also should possess corresponding technique effect; its specific implementation process is similar to the above embodiments, does not hereby give unnecessary details.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a telescopic crane boom fender guard is characterized in that, described telescopic crane boom fender guard comprises:
The first acquisition module (1) is connected with judge module (7) signal, is used for obtaining the flexible resistance of telescopic boom;
The second acquisition module (2) is connected with judge module (7) signal, is used for obtaining the contractility of telescopic oil cylinder;
Judge module (7) is connected with processing module (8) signal, is used for judging that whether described flexible resistance is greater than described contractility;
Processing module (8) is used for sending control signal and makes telescopic oil cylinder stop action when described judge module (7) is judged described flexible resistance greater than described contractility.
2. telescopic crane boom fender guard as claimed in claim 1; it is characterized in that; described the first acquisition module (1) comprising: the first computing module (11) is used for respectively saving the flexible resistance that calculation of friction coefficient between the arm goes out telescopic boom according to lift heavy amount, the telescopic boom elevation angle, telescopic boom quality and telescopic boom.
3. telescopic crane boom fender guard as claimed in claim 2; it is characterized in that; described telescopic crane boom fender guard also comprises: the 3rd acquisition module (3), be connected with described the first computing module (11) signal, and be used for obtaining lift heavy amount and the telescopic boom elevation angle.
4. telescopic crane boom fender guard as claimed in claim 3 is characterized in that, described the 3rd acquisition module (3) is limiter of moment, and described limiter of moment detects lift heavy amount and the telescopic boom elevation angle.
5. telescopic crane boom fender guard as claimed in claim 2; it is characterized in that; described telescopic crane boom fender guard also comprises: the 4th acquisition module (4); be connected with described the first computing module (11) signal, be used for obtaining telescopic boom quality and telescopic boom and respectively save friction coefficient between the arm.
6. telescopic crane boom fender guard as claimed in claim 5; it is characterized in that; described telescopic crane boom fender guard also comprises: memory module (6), be connected with described the 4th acquisition module (4) signal, and be used for storage telescopic boom quality and telescopic boom and respectively save friction coefficient between the arm.
7. such as each described telescopic crane boom fender guard of claim 1 to 6, it is characterized in that described the second acquisition module (2) comprising: the second computing module (22) is used for calculating the contractility of telescopic oil cylinder according to the fuel pressure gage of telescopic oil cylinder.
8. telescopic crane boom fender guard as claimed in claim 7 is characterized in that, described telescopic crane boom fender guard also comprises: the 5th acquisition module (5), be connected with described the second computing module (22) signal, and be used for obtaining the oil pressure of telescopic oil cylinder.
9. telescopic crane boom fender guard as claimed in claim 8 is characterized in that, described the 5th acquisition module (5) is for being located at the pressure sensor of telescopic oil cylinder oil circuit of living in.
10. a hoisting crane is characterized in that, described hoisting crane is provided with each described telescopic crane boom fender guard of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308330 CN202704896U (en) | 2012-06-28 | 2012-06-28 | Crane and protection device for telescopic boom of same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308330 CN202704896U (en) | 2012-06-28 | 2012-06-28 | Crane and protection device for telescopic boom of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202704896U true CN202704896U (en) | 2013-01-30 |
Family
ID=47585220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308330 Expired - Fee Related CN202704896U (en) | 2012-06-28 | 2012-06-28 | Crane and protection device for telescopic boom of same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202704896U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332617A (en) * | 2013-07-24 | 2013-10-02 | 徐州重型机械有限公司 | Extension and retraction protection device and method for suspension arm barrel of automobile crane and automobile crane |
| CN109132873A (en) * | 2018-10-25 | 2019-01-04 | 朱丽蓉 | The restoration methods of nacelle protective device, crane and nacelle protective device |
-
2012
- 2012-06-28 CN CN 201220308330 patent/CN202704896U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332617A (en) * | 2013-07-24 | 2013-10-02 | 徐州重型机械有限公司 | Extension and retraction protection device and method for suspension arm barrel of automobile crane and automobile crane |
| CN103332617B (en) * | 2013-07-24 | 2015-06-17 | 徐州重型机械有限公司 | Extension and retraction protection device and method for suspension arm barrel of automobile crane and automobile crane |
| CN109132873A (en) * | 2018-10-25 | 2019-01-04 | 朱丽蓉 | The restoration methods of nacelle protective device, crane and nacelle protective device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102556866B (en) | Stability monitoring system and stability monitoring method of lifting equipment | |
| CN101746675B (en) | Crane super-lifting device and control system and control method thereof | |
| US20140330481A1 (en) | Device and Method for Ascertaining and Monitoring an Assembled Counterweight on a Crane | |
| CN106006417A (en) | Crane hook swing monitoring system and method | |
| CN102101618B (en) | Method and system for detecting wire ropes of elevator | |
| CN104495622A (en) | A wind load control system, method, device and lifting equipment | |
| CN202704896U (en) | Crane and protection device for telescopic boom of same | |
| CN104261256A (en) | Online monitoring system and method of tower crane jacking state | |
| CN104555736A (en) | Method and device for identifying working condition of five-knuckle arm crane with wire ropes | |
| CN105731273A (en) | Crawler crane with double hooks for hoisting and load limiter safety protection control method and device | |
| CN102417141A (en) | Method and device for detecting inclination angle of tower body axis line of tower crane | |
| CN202575792U (en) | Folding arm type lorry-mounted crane torque limit device | |
| CN103678908A (en) | Life early warning method, life early warning system and dynamic compaction machine | |
| CN204454308U (en) | Novel tower crane monitoring system | |
| CN103879881A (en) | Crane hook safe operation control method, device, system and crane | |
| CN202369310U (en) | Safety detection and control device for crane jib luffing | |
| CN209411636U (en) | A kind of steel wire rope tension and deformation detecting device | |
| CN2658133Y (en) | Moment limitter special for mobile crane | |
| CN102351132B (en) | Gravity center and grounding pressure display device and method for crawler crane | |
| CN104340894A (en) | Hoisting machinery moment protection system and automatic working condition recognition method | |
| CN102745606A (en) | Control device, method, system and engineering machinery for super-lifting device | |
| CN204175704U (en) | Outrigger support cylinder structure and engineering machinery | |
| CN102390781B (en) | Lateral load protection device and method for crane | |
| CN115028096B (en) | Control method and control system of engineering machinery and telescopic arm thereof | |
| CN204037357U (en) | A kind of engineering truck synthetical display control system |
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: 20130130 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |