CN202089705U - Counterweight adjustable caterpillar crane - Google Patents
Counterweight adjustable caterpillar crane Download PDFInfo
- Publication number
- CN202089705U CN202089705U CN 201120167660 CN201120167660U CN202089705U CN 202089705 U CN202089705 U CN 202089705U CN 201120167660 CN201120167660 CN 201120167660 CN 201120167660 U CN201120167660 U CN 201120167660U CN 202089705 U CN202089705 U CN 202089705U
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- Prior art keywords
- crane
- counterweight
- moment
- boom
- weight
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- Expired - Fee Related
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Abstract
The utility model discloses a counterweight adjustable caterpillar crane, which comprises a crane body. The crane body is provided with a crane boom combination and a standard counterweight and further provided with additional counterweight and a moment of force limiting controller. The additional counterweight is provided with an approach electronic detecting switch, and the moment of force limiting controller is connected with an electromagnetic valve. Based on the existing caterpillar cranes, the counterweight adjustable caterpillar crane is capable of increasing and reducing counterweight timely by comparing the length parameter of the crane boom and a state of the approach electronic detecting switch through the moment of force limiting controller, thereby strengthening stability of walking of the whole crane with loads when a short boom section works, reducing forward bending after adding counterweight when a long boom section hoists the boom in a horizontal state, and simultaneously improving loading performance of the long boom section during work. Accordingly, stability of the whole crane is strengthened.
Description
Technical field
The utility model patent relates to a kind of hoisting crane, is specifically related to a kind of complete machine load performance and all high crawler crane of stability.
Background technology
Crawler crane is the elevator machinery of a kind of full circle swinging, the combination of more piece truss arm, caterpillar chassis, is widely used in departments such as metallurgy, the energy, iron and steel, chemical industry, carries out operations such as lifting, installation and transhipment goods and materials.Crawler crane is again a kind of weight-hauling equipment of widespread use, have that lifting performance is good, grounding pressure is little, turn radius is little, can be with carry walking, to ground environmental requirement advantages of higher not, have other irreplaceable status of elevator machinery.Crawler crane is subjected to the consistent favorable comment of construction trade and carrier with its good performance and usage space widely.But crawler crane is the continuous increase of maximum load rating thereupon, and the greatest combined length of jib also obviously increases.Considering that when using the galianconism band to carry the situation of walking, the stability of the more little then walking of the quality of complete machine is good more, so just needing the quality of control criterion counterweight can not be too heavy; And consider that long-armed prevents that when level attitude plays arm the back counterweight from leaning forward, and need the quality of standard counterweight suitably to increase again, more steady when level attitude plays arm to guarantee long-armed, safer; When long-armed work,, increased machine performance simultaneously owing to the quality that has increased the standard counterweight makes its rated load also increase to some extent.And the standard weight mass of hoisting crane is certain at present, can not satisfy the requirement of different length jib simultaneously.
The utility model content
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of adjustable counter weight type crawler crane is provided, and can change the quality of counterweight according to the length of jib.
The technical solution of the utility model realizes in the following manner: a kind of adjustable counter balance formula crawler crane, comprise the hoisting crane body, the hoisting crane body is provided with jib combination and standard counterweight, the hoisting crane body is provided with additional bob-weight and moment restriction controller, additional bob-weight is provided with near the detection of electrons switch, and the moment restriction controller links to each other with electromagnetic valve.
The moment restriction controller links to each other with acoustic-optic alarm.
The utility model is on the basis of existing crawler crane, compare to the length parameter of jib with near the state of detection of electrons switch by the moment restriction controller, increase and decrease additional bob-weight in good time, the complete machine band carries the stability of walking when being used for strengthening the galianconism joint, the leaning forward of counterweight after when reducing long-armed water saving level state and playing arm, the load performance in the time of more increasing long-armed joint work simultaneously.And then strengthened the stability of complete machine.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in drawings, the utility model comprises the hoisting crane body, and the hoisting crane body is provided with jib combination 7 and standard counterweight 1, and the hoisting crane body is provided with additional bob-weight 2 and moment restriction controller 6, additional bob-weight 2 is provided with near detection of electrons switch 3, and moment restriction controller 6 links to each other with electromagnetic valve 8.
The utility model working process is as follows: if current jib makes up the length of 7 length less than the indicated jib in adjustable counter balance controlling point, do not increase additional bob-weight 2 operations so; If the length of current jib combination 7 reaches or greater than the indicated jib length in adjustable counter balance controlling point, so just requires to increase additional bob-weight 2 and carry out operation.Concrete testing process is to realize near detection of electrons switch 3 by installing on additional bob-weight 2, and moment restriction controller 6 receives these signals, compares with current jib length parameter, judges that finally additional bob-weight 2 needs to increase still removal.In testing process,, then disconnect near detection of electrons switch 3 if additional bob-weight 2 is not installed; If additional bob-weight 2 has been installed, then near detection of electrons switch 3 closures.The first kind of situation that detects: if the current arm support pattern length less than the controlling point parameter of adjustable counter balance, and moment restriction controller 6 receive near detection of electrons switch cut-off signal, then this coupling is correct, hoisting crane can normal operation; Second kind of situation, if the length of current arm support combination is equal to, or greater than the controlling point parameter of adjustable counter balance, and limiter of moment receive be signal near the detection of electrons switch closure, then hoisting crane allows normal operation equally.Any situation of removing outside the both of these case does not allow the hoisting crane normal operation, and the moment restriction controller will send the sound and light alarm prompting, works on after reminding operator's increase or removing additional bob-weight again; The moment restriction controller also sends control signal simultaneously, cuts off the power supply of security solenoid valve, forces the action of the dangerous direction of control, the safety of the final protection person and property.But after changing brachium or any one parameter of additional bob-weight and making it to be complementary, report to the police and controllable function automatically terminates, complete machine returns to normal safe work state.
Claims (2)
1. adjustable counter balance formula crawler crane, comprise the hoisting crane body, the hoisting crane body is provided with jib combination (7) and standard counterweight (1), it is characterized in that: the hoisting crane body is provided with additional bob-weight (2) and moment restriction controller (6), additional bob-weight (2) is provided with near detection of electrons switch (3), and moment restriction controller (6) links to each other with electromagnetic valve (8).
2. adjustable counter balance formula crawler crane according to claim 1 is characterized in that: moment restriction controller (6) links to each other with acoustic-optic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120167660 CN202089705U (en) | 2011-05-24 | 2011-05-24 | Counterweight adjustable caterpillar crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120167660 CN202089705U (en) | 2011-05-24 | 2011-05-24 | Counterweight adjustable caterpillar crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202089705U true CN202089705U (en) | 2011-12-28 |
Family
ID=45364786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120167660 Expired - Fee Related CN202089705U (en) | 2011-05-24 | 2011-05-24 | Counterweight adjustable caterpillar crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202089705U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207225A (en) * | 2014-07-15 | 2017-09-26 | 特雷克斯全球有限公司 | Crane, the apparatus and method for deflecting the power on crane |
| CN109650304A (en) * | 2018-12-14 | 2019-04-19 | 中联重科股份有限公司 | More performance curve switching methods, system and aerial lift device |
-
2011
- 2011-05-24 CN CN 201120167660 patent/CN202089705U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107207225A (en) * | 2014-07-15 | 2017-09-26 | 特雷克斯全球有限公司 | Crane, the apparatus and method for deflecting the power on crane |
| CN107207225B (en) * | 2014-07-15 | 2019-03-19 | 特雷克斯全球有限公司 | Crane, the device and method for deflecting the power on crane |
| CN109650304A (en) * | 2018-12-14 | 2019-04-19 | 中联重科股份有限公司 | More performance curve switching methods, system and aerial lift device |
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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: 20111228 Termination date: 20170524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |