CN101575075A - Truck crane and multisection synchronous telescopic boom device thereof - Google Patents
Truck crane and multisection synchronous telescopic boom device thereof Download PDFInfo
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Abstract
The invention discloses a multisection synchronous telescopic boom device which is characterized in that a cylinder lever and a cylinder barrel of a telescopic oil cylinder are respectively installed between any two adjacent telescopic booms out of a basic boom and a tail telescopic boom; any one telescopic boom out of the basic boom and the tail telescopic boom is fixedly connected with an extension boom runner and a retraction boom runner; an extension boom guy cable rounds the extension boom runner and both ends thereof are respectively and fixedly connected with an upper boom and a lower boom of the telescopic boom on which the extension boom runner is positioned; a retraction boom guy cable rounds the retraction boom runner and both ends thereof are respectively and fixedly connected with an upper boom and a lower boom of the telescopic boom on which the retraction boom runner is positioned; synchronous extension and retraction of the multisection synchronous telescopic boom device of the engineering crane can be realized only by using one telescopic oil cylinder, thus effectively reducing weight of the boom and further improving the stability of the crane during lifting. The invention also discloses a truck crane comprising the multisection synchronous telescopic boom device.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of multisection synchronous telescopic boom device that is used for car hosit.The invention still further relates to a kind of car hosit that comprises above-mentioned multisection synchronous telescopic boom device.
Background technology
Along with the fast development of China's economic construction, market increases day by day for the demand of car hosit.
Telescopic boom is the vitals of car hosit, and the carrying during lift heavy realizes by telescopic boom that all its quality can influence the in-use performance of car hosit to a great extent.
Please refer to Fig. 1, Fig. 1 be in the prior art a kind of representative type car hosit with five the joint synchronous telescopic boom devices structural representation.
This five joints synchronous telescopic boom comprises basic arm 121 and is set in wherein the second joint arm 122, the 3rd joint arm 123, the 4th joint arm 124 and the 5th joint arm 125 successively, and the arm body inside of the 5th joint arm 125 is provided with first telescopic oil cylinder 111 and second telescopic oil cylinder 112.The cylinder barrel 1111 of first telescopic oil cylinder 111 is connected with the second joint arm 122, and its cylinder bar 1112 is connected with basic arm; The cylinder barrel 1121 of second telescopic oil cylinder 112 is connected with the 3rd joint arm 123, and its cylinder bar 1122 is connected with the second joint arm 122.When the oil-feed simultaneously of the rod chamber of two telescopic oil cylinders, its cylinder barrel all protracts, and drives the second joint arm 112 and the 3rd joint arm 123 stretches out by the hinge axle on the two telescopic oil cylinder cylinder barrels, realizes that the second joint arm 122 and the 3rd joint arm 123 and two telescopic oil cylinders stretch out synchronously.The first semi-girder rope, 1,411 one ends are fixed on the self-equalizing frame of the 4th joint arm 124 roots, and the other end is fixed on the drag-line permanent seat of the second joint arm, 122 roots by the first semi-girder pulley 1311 on the terminal link span of the cylinder barrel 1121 of the second flexible oil 112.When the 3rd joint arm 123 and second telescopic oil cylinder 112 stretches out synchronously, under the effect of the first semi-girder pulley 1311, the first semi-girder rope 1411 drives the 4th joint arm 124 and stretches out with the speed of two times of two telescopic oil cylinders, thereby realizes that the second joint arm 122, the 3rd joint arm 123 and the 4th joint arm 124 stretch out synchronously.The second semi-girder rope, 1,412 one ends are fixed on the jointed shaft of the 5th joint arm 125 roots and the second semi-girder pulley 1312 by the 4th joint arm 124 ends, and its other end is fixed on the root of the 3rd joint arm 123.At the 3rd joint arm 123 and the 4th joint when arm 124 stretches out synchronously, the second semi-girder rope 1412 drives the 5th joint arm 125 and stretches out two times of speed with the 4th joint arm 124 and stretch out, thereby realizes stretching out synchronously of the second joint arm 122, the 3rd joint arm 123, the 4th joint arm 124 and the 5th joint arm 125.
When the oil-feed simultaneously of the rodless cavity of first telescopic oil cylinder 111 and second telescopic oil cylinder 112, the cylinder barrel retraction of two telescopic oil cylinders, twisted point axle by two cylinder tubes drives the second joint arm 122 respectively and the 3rd joint arm 123 bounces back synchronously, on the 3rd joint arm 123 root pulley yokes the first arm wheel 1321 that contracts drives the retraction speed retraction of the 4th joint arm 124 with 123 2 times on the 3rd joint arm by the first arm rope 1421 that contracts, simultaneously, on the 4th joint arm 124 root pulley yokes the second arm wheel 1322 that contracts drives the retraction speed retraction of the 5th joint arm 125 with 124 2 times on the 4th joint arm by the second arm rope 1422 that contracts, thereby realizes the second joint arm 122, the 3rd joint arm 123, the synchronous retraction of the 4th joint arm 124 and the 5th joint arm 125.
Above-mentioned prior art drives the mode that the joint arm moves by two inverted telescopic oil cylinders, has realized the synchronization telescope of five joint joint arms.But in the large-tonnage car hosit, the quality of each telescopic oil cylinder reaches more than one ton, makes that the arm of car hosit is heavy very big, and higher productive costs is arranged.
Therefore, how under the prerequisite that does not influence functions of use, to reduce the usage quantity of telescopic oil cylinder in the multisection synchronous telescopic boom device, thereby reduce its deadweight, and the productive costs of reduction car hosit just becomes the technical matters that those skilled in the art need solve.
Summary of the invention
The purpose of this invention is to provide a kind of multisection synchronous telescopic boom device that is used for car hosit, it can reduce the usage quantity of telescopic oil cylinder, thereby alleviates its deadweight, and can reduce production costs.The present invention also provides a kind of car hosit that comprises above-mentioned multisection synchronous telescopic boom device.
For solving the problems of the technologies described above, the invention provides a kind of multisection synchronous telescopic boom device, be used for car hosit, comprise basic arm and be set at least three in the described basic arm successively and save telescopic booms that the inboard of minor details telescopic boom is provided with telescopic oil cylinder; The cylinder bar of described telescopic oil cylinder and cylinder barrel are installed on wantonly two outside basic arm and the minor details telescopic boom respectively and save between the adjacent telescopic boom; Arbitrary joint telescopic boom outside basic arm and the minor details telescopic boom all is fixedly connected with the semi-girder runner and the arm runner that contracts; The described semi-girder runner of semi-girder guy cable rounds, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this semi-girder runner place respectively; The described arm runner that contracts of the arm guy cable rounds that contracts, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this arm runner place of contracting respectively.
Preferably, described joint arm comprises the second joint arm, the 3rd joint arm, the 4th joint arm and the 5th joint arm successively,
The cylinder barrel of described telescopic oil cylinder is connected with described the 3rd joint arm, and its cylinder bar is connected with the described second joint arm;
The described second joint arm is equipped with the first semi-girder runner, the described first semi-girder runner of the first semi-girder guy cable rounds, and its first end connects described basic arm, and its second end connects described the 3rd joint arm;
The cylinder barrel of described telescopic oil cylinder is equipped with the second semi-girder runner, the described second semi-girder runner of the second semi-girder guy cable rounds, and its first end connect described second the joint arm, its second end connect described the 4th the joint arm;
Described the 4th the joint arm the 3rd semi-girder runner is installed, described the 3rd semi-girder runner of the 3rd semi-girder guy cable rounds, and its first end connect described the 3rd the joint arm, its second end connect described the 5th the joint arm;
The described second joint arm is equipped with the first arm runner that contracts, the first arm guy cable rounds described first arm runner that contracts that contracts, and its first end connects described basic arm, and its second end connects described the 3rd joint arm;
Described the 3rd joint arm is equipped with the second arm runner that contracts, the second arm guy cable rounds described second arm runner that contracts that contracts, and its first end connects the described second joint arm, and its second end connects described the 4th joint arm;
Described the 4th joint arm is equipped with the 3rd arm runner that contracts, the 3rd arm guy cable rounds the described the 3rd arm runner that contracts that contracts, and its first end connects described the 3rd joint arm, and its second end connects described the 5th joint arm.
Preferably, described telescopic oil cylinder is by the oil pipe fuel feeding, and the outer ring of described oil pipe is set with the holder chain.
Preferably, each the semi-girder runner and the arm runner that respectively contracts are pulley, and each the semi-girder zip and the arm zip that respectively contracts are steel rope.
Preferably, each the semi-girder runner and the arm runner that respectively contracts are sprocket wheel, and each the semi-girder zip and the arm zip that respectively contracts are chain.
The present invention also provides a kind of car hosit, comprises the chassis; Also comprise above-mentioned each described multisection synchronous telescopic boom device.
Like this, by being installed on wantonly two telescopic oil cylinders that save between the adjacent telescopic boom outside basic arm and the minor details telescopic boom, be connected in the semi-girder runner of the arbitrary joint telescopic boom outside basic arm and the minor details telescopic boom and the arm runner and walk around described semi-girder runner of contracting, and the last joint arm that its two ends are fixedly connected on the telescopic boom at this semi-girder runner place respectively saves the semi-girder drag-line of arm and walks around the described arm runner that contracts with next, and the last joint arm that its two ends are fixedly connected on the telescopic boom at this arm runner place of contracting respectively saves the arm drag-line that contracts of arm with next, making only uses a telescopic oil cylinder just can realize the synchronization telescope of the multi-stage telescopic arms of car hosit, thereby reduced the weight of arm effectively, and then improved the stability of hoisting crane when lifting; Simultaneously, reduced by a telescopic oil cylinder, reduced the productive costs of car hosit.
A kind of preferred embodiment in, above-mentioned each the semi-girder runner and the arm runner that respectively contracts can be pulley, correspondingly, each the semi-girder zip and the arm zip that respectively contracts are steel rope.Pulley and steel rope all are widely used in engineering machinery field, and it is comparatively convenient to upgrade, safeguard, and the reliability of the two is higher, and service life is longer.
Description of drawings
Fig. 1 be in the prior art a kind of representative type car hosit with five the joint synchronous telescopic booms structural representation;
Fig. 2 is the structural representation of car hosit provided by the present invention with first kind of specific embodiment of multisection synchronous telescopic boom device;
Fig. 3 is the structural representation of car hosit provided by the present invention with second kind of specific embodiment of multisection synchronous telescopic boom device.
The specific embodiment
Core of the present invention provides a kind of multisection synchronous telescopic boom device, and it reduces the usage quantity of telescopic oil cylinder, thereby alleviates the weight of arm, and reduces production costs.Another core of the present invention provides a kind of car hosit that comprises above-mentioned multisection synchronous telescopic boom device.
In order to make those skilled in the art person understand technical scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the structural representation of car hosit provided by the present invention with first kind of specific embodiment of multisection synchronous telescopic boom device.
In a kind of specific embodiment, multisection synchronous telescopic boom device provided by the present invention comprises basic arm 221 and is set in this basic arm 221 in-to-ins second joint arm 222, the 3rd joint arm 223, the 4th joint arm 224 and the 5th joint arm 225 successively, and the arm body inboard at the 5th joint arm 225 is provided with telescopic oil cylinder 21, the cylinder barrel 211 of this telescopic oil cylinder 21 is captiveed joint with the 3rd joint arm 223, and its cylinder bar 212 is captiveed joint with the second joint arm 222; When the rodless cavity oil-feed of telescopic oil cylinder 21, cylinder barrel drives the 3rd joint arm 223 and stretches out with certain speed V; When the rod chamber oil-feed of telescopic oil cylinder 21, cylinder barrel 211 drives the 3rd joint arm 223 with certain speed V
1Withdrawal.
The second joint arm 222 is equipped with the first semi-girder runner, 2311, the first semi-girder drag-lines 2411 and walks around the above-mentioned first semi-girder runner 2311, and its first end is connected in basic arm 221, and its second end is connected in the 3rd joint arm 223; When the cylinder barrel 211 of the 3rd joint arm 223 and telescopic oil cylinder 21 stretches out synchronously, the first semi-girder zip 2411 drives the second joint arm 222 and stretches out with the speed of 0.5V, then the 3rd joint arm 223 is V with respect to the speed of the second joint arm 222, thereby realizes stretching out synchronously of the second joint arm 222 and the 3rd joint arm 223.
The cylinder barrel 211 of telescopic oil cylinder 21 is equipped with the second semi-girder runner, 2312, the second semi-girder drag-lines 2412 and walks around the second semi-girder runner 2312, and its first end be connected in second the joint arm 222, its second end be connected in the 4th the joint arm 224; When the cylinder barrel 211 of the 3rd joint arm 223 and telescopic oil cylinder 21 stretches out synchronously, the second semi-girder drag-line 2412 drives the 4th joint arm 224 and stretches out with the speed of 2V, then the 4th joint arm 224 is V with respect to the speed of the 3rd joint arm 223, thereby has realized stretching out synchronously of the 4th joint arm 224 and the 3rd joint arm 223.
The 4th joint arm 224 is equipped with the 3rd semi-girder runner 2313, the three semi-girder drag-lines 2413 and walks around the 3rd semi-girder runner 2313, and its first end is connected in the 3rd joint arm 223, and its second end is connected in the 5th joint arm 225; At the 3rd joint arm 223 and the 4th joint when arm 224 stretches out synchronously, the 3rd semi-girder drag-line 2413 drives the 5th joint arm 225 and stretches out with the speed of 4V, then the 5th joint arm 225 is V with respect to the speed of the 4th joint arm 224, thereby has realized stretching out synchronously of the second joint arm 222, the 3rd joint arm 223, the 4th joint arm 224 and the 5th joint arm 225.
The second joint arm 222 is equipped with first arm runner 2321, the first arm drag-line 2421 that contracts that contracts and walks around the first arm runner 2321 that contracts, and its first end is connected in basic arm 221, and its second end is connected in the 3rd joint arm 223; In 223 withdrawals of the 3rd joint arm, first contracts the arm drag-line 2421 drives second joint arm with 0.5V
1Speed withdrawal, then the 3rd joint arm 223 is V with respect to the speed of stretching out of the second joint arm 222
1Thereby, realized the synchronous withdrawal of the second joint arm 222 and the 3rd joint arm 223.
The 3rd joint arm 223 is equipped with second arm runner 2322, the second arm drag-line 2422 that contracts that contracts and walks around the second arm runner 2322 that contracts, and its first end is connected in the second joint arm 222, and its second end is connected in the 4th joint arm 224; In the second joint arm 222 and the 3rd joint arm 223 withdrawal synchronously, second contracts arm drag-line 2422 drives the 4th joint arm 224 with 2V
1Speed withdrawal, then the 4th joint arm 224 is V with respect to the speed of the 3rd joint arm 223
1Thereby, realized the synchronous withdrawal of the second joint arm 222, the 3rd joint arm 223 and the 4th joint arm 224.
The 4th joint arm 224 is equipped with the 3rd arm runner 2323, the three arm drag-line 2423 that contracts that contracts and walks around the 3rd arm runner 2323 that contracts, and its first end is connected in the 3rd joint arm 223, and its second end is connected in the 5th joint arm 225; When second saved arm 222, the 3rd joint arm 223 and the 4th joint arm 224 withdrawal synchronously, the 3rd contracted arm drag-line 2423 drives the 5th joint arm 225 with 4V
1Speed withdrawal, then the 5th joint arm 225 is V with respect to the speed of the 4th joint arm 224
1Thereby, realized the synchronous withdrawal of the second joint arm 222, the 3rd joint arm 223, the 4th joint arm 224 and the 5th joint arm 225.
It is pointed out that connection and occupation mode according to the field of engineering technology routine, above-mentioned each the semi-girder runner and the arm runner that respectively contracts can be according to using needs to be fixedly connected on the appropriate location of respectively saving arm or telescopic oil cylinder respectively; Correspondingly, above-mentioned each the semi-girder zip and the arm zip that respectively contracts also can be according to using needs to be fixedly connected on the appropriate location of respectively saving arm; Usually, each runner and drag-line are arranged at root or the end that respectively saves arm or telescopic oil cylinder respectively, to realize its application target better.
Like this, by increasing by one group of semi-girder runner and semi-girder zip and one group of contract the arm runner and the arm zip that contracts, only use a telescopic oil cylinder just can realize the synchronization telescope of five joint synchronous telescopic booms of car hosit, thereby reduced the weight of arm effectively, and then improved the stability of hoisting crane when lifting; Simultaneously, reduced by a telescopic oil cylinder, reduced the productive costs of hoisting crane.
Above-mentioned telescopic oil cylinder can also be its fuel feeding by oil pipe, is set with the holder chain in the outer ring of this oil pipe, in order to the protection oil pipe, prolongs the service life of oil pipe.This holder chain can also can be materials such as rubber for having metal material in certain strength.
The above-mentioned first semi-girder runner 2311, the second semi-girder runner 2312 and the 3rd semi-girder runner 2313 all can be pulley, and correspondingly, the first semi-girder drag-line 2411, the second semi-girder drag-line 2412 and the 3rd semi-girder drag-line 2413 all can be steel rope.Certainly, above-mentioned first arm runner 2321, second arm runner 2322 and the 3rd arm runner 2323 that contracts that contracts that contracts all can be pulley, and correspondingly, first arm drag-line 2421, second arm drag-line 2422 and the 3rd arm drag-line 2423 that contracts that contracts that contracts all can be steel rope.Pulley and steel rope all have very widely in engineering machinery field to be used, and it is comparatively convenient to buy, therefore be convenient to upgrade and maintenance, and pulley and steel rope reliability in use is higher, and service life is longer.
Certainly, above-mentioned each the semi-girder runner and the arm runner that respectively contracts are not limited to pulley, also can realize the parts of axial rotation for other, for example sprocket wheel etc.; Correspondingly, above-mentioned each the semi-girder zip and the arm zip that respectively contracts also are not limited to steel rope, also can be chain etc.
Above-mentioned five joint synchronous telescopic booms, its second joint arm 222, the 3rd joint arm 223, on the arm body of the 4th joint arm 224 and the 5th joint arm 225 some self-equalizing framves and some drag-line permanent seats can be installed all, first end of the above-mentioned first semi-girder drag-line 2411, second semi-girder draws first end of element 2412 and first end of the 3rd semi-girder drag-line 2413 to captive joint with each self-equalizing frame respectively, and second end of the above-mentioned first semi-girder drag-line 2411, second end of second end of the second semi-girder drag-line 2412 and the 3rd semi-girder drag-line 2413 is captiveed joint with each drag-line permanent seat respectively, so that the first semi-girder drag-line 2411, the second semi-girder drag-line 2412 and the 3rd semi-girder drag-line 2413 can save arm 222 with above-mentioned second better, the 3rd joint arm 223, the 4th joint arm 224 and the 5th joint arm 225 captive joints.
Correspondingly, above-mentioned first arm zip 2421, second arm drag-line 2422 and the 3rd arm drag-line 2423 that contracts that contracts that contracts also all can save arm 225 with the second joint arm 222, the 3rd joint arm 223, the 4th joint arm 224 and the 5th by self-equalizing frame and drag-line permanent seat and captive joint.
When more than having introduced telescopic boom and be four joints, the specific embodiment when also promptly comprising five joint telescopic boom devices of basic arm, more piece synchronization telescope device provided by the present invention also comprises the situation of six joint arms.
Please refer to Fig. 3, Fig. 3 is the structural representation of car hosit provided by the present invention with second kind of specific embodiment of multisection synchronous telescopic boom device.
In above-mentioned first specific embodiment and second specific embodiment, telescopic oil cylinder 21 is all between the second joint arm 222 and the 3rd joint arm 223, but in actual use, the position of telescopic oil cylinder 21 is not limited between the second joint arm and the 3rd joint arm, and the cylinder bar 212 of telescopic oil cylinder 21 and cylinder barrel 211 are installed on wantonly two outside basic arm 221 and the minor details telescopic boom respectively and save between the adjacent telescopic boom and can satisfy operating needs.
In second kind of specific embodiment, telescopic oil cylinder 21 is installed between the 3rd joint arm 223 and the 4th joint arm 224, so only need to change the contract connection location of the arm runner and the arm drag-line that contracts of each semi-girder runner and semi-girder drag-line and each, just can realize respectively saving stretching out synchronously and withdrawing of telescopic boom.
Above-mentioned two kinds of specific embodiment are several situations of more piece synchronization telescope device provided by the present invention, the cylinder bar 212 of telescopic oil cylinder 21 and cylinder barrel 211 are installed on wantonly two outside basic arm 221 and the minor details telescopic boom respectively and save between the adjacent telescopic boom, arbitrary joint telescopic boom outside basic arm and the minor details telescopic boom all is fixedly connected with the semi-girder runner and the arm runner that contracts, the described semi-girder runner of semi-girder guy cable rounds, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this semi-girder runner place respectively, the described arm runner that contracts of the arm guy cable rounds that contracts, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this arm runner place of contracting respectively, as long as satisfy the more piece synchronization telescope device of said structure all can realize saving at least one telescopic oil cylinder by the change of its structure under the situation that does not change the principle of the invention purpose, reduce the quality of more piece synchronization telescope device, reduced productive costs.
Except above-mentioned multisection synchronous telescopic boom device, the present invention also provides a kind of car hosit that comprises above-mentioned multisection synchronous telescopic boom device, and the structure of other each several parts of this car hosit please refer to prior art, and this paper repeats no more.
More than a kind of car hosit provided by the present invention and multisection synchronous telescopic boom device thereof are described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (6)
1, a kind of multisection synchronous telescopic boom device is used for car hosit, comprises basic arm and be set at least three in the described basic arm successively saving telescopic booms, and the inboard of minor details telescopic boom is provided with telescopic oil cylinder; It is characterized in that the cylinder bar of described telescopic oil cylinder and cylinder barrel are installed on wantonly two outside basic arm and the minor details telescopic boom respectively and save between the adjacent telescopic boom; Arbitrary joint telescopic boom outside basic arm and the minor details telescopic boom all is fixedly connected with the semi-girder runner and the arm runner that contracts; The described semi-girder runner of semi-girder guy cable rounds, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this semi-girder runner place respectively; The described arm runner that contracts of the arm guy cable rounds that contracts, and its two ends are fixedly connected on a last joint arm and next joint arm of the telescopic boom at this arm runner place of contracting respectively.
2, multisection synchronous telescopic boom device according to claim 1 is characterized in that,
Described telescopic boom comprises the second joint arm, the 3rd joint arm, the 4th joint arm and the 5th joint arm successively, and the cylinder barrel of described telescopic oil cylinder is connected with described the 3rd joint arm, and its cylinder bar is connected with the described second joint arm;
The described second joint arm is equipped with the first semi-girder runner, the described first semi-girder runner of the first semi-girder guy cable rounds, and its first end connects described basic arm, and its second end connects described the 3rd joint arm;
The cylinder barrel of described telescopic oil cylinder is equipped with the second semi-girder runner, the described second semi-girder runner of the second semi-girder guy cable rounds, and its first end connect described second the joint arm, its second end connect described the 4th the joint arm;
Described the 4th the joint arm the 3rd semi-girder runner is installed, described the 3rd semi-girder runner of the 3rd semi-girder guy cable rounds, and its first end connect described the 3rd the joint arm, its second end connect described the 5th the joint arm;
The described second joint arm is equipped with the first arm runner that contracts, the first arm guy cable rounds described first arm runner that contracts that contracts, and its first end connects described basic arm, and its second end connects described the 3rd joint arm;
Described the 3rd joint arm is equipped with the second arm runner that contracts, the second arm guy cable rounds described second arm runner that contracts that contracts, and its first end connects the described second joint arm, and its second end connects described the 4th joint arm;
Described the 4th joint arm is equipped with the 3rd arm runner that contracts, the 3rd arm guy cable rounds the described the 3rd arm runner that contracts that contracts, and its first end connects described the 3rd joint arm, and its second end connects described the 5th joint arm.
3, multisection synchronous telescopic boom device according to claim 1 is characterized in that, described telescopic oil cylinder is by the oil pipe fuel feeding, and the outer ring of described oil pipe is set with the holder chain.
According to each described multisection synchronous telescopic boom device of claim 1 to 3, it is characterized in that 4, each the semi-girder runner and the arm runner that respectively contracts are pulley, each the semi-girder zip and the arm zip that respectively contracts are steel rope.
According to each described multisection synchronous telescopic boom device of claim 1 to 3, it is characterized in that 5, each the semi-girder runner and the arm runner that respectively contracts are sprocket wheel, each the semi-girder zip and the arm zip that respectively contracts are chain.
6, a kind of car hosit comprises the chassis; It is characterized in that, also comprise each described multisection synchronous telescopic boom device of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101457371A CN101575075A (en) | 2009-06-05 | 2009-06-05 | Truck crane and multisection synchronous telescopic boom device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101457371A CN101575075A (en) | 2009-06-05 | 2009-06-05 | Truck crane and multisection synchronous telescopic boom device thereof |
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| CN101575075A true CN101575075A (en) | 2009-11-11 |
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| CN102662331A (en) * | 2012-04-17 | 2012-09-12 | 中南大学 | Method for simulating deflection of automobile suspension arm on the basis of virual reality |
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| CN105417411A (en) * | 2015-12-31 | 2016-03-23 | 徐州重型机械有限公司 | Telescopic boom structure based on multi-stage oil cylinder and crane |
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| CN109335974A (en) * | 2018-12-24 | 2019-02-15 | 陈奕松 | A telescopic boom and a crane |
| CN111675119A (en) * | 2020-06-23 | 2020-09-18 | 三一汽车起重机械有限公司 | Telescopic arm of crane and crane |
| CN112831946A (en) * | 2020-12-31 | 2021-05-25 | 海宁市启程智能装备有限公司 | Dyeing apparatus is used in plastic cloth production |
| CN113173518A (en) * | 2021-05-19 | 2021-07-27 | 山东华樱轨道装备有限公司 | Car lifting jack for truck body |
-
2009
- 2009-06-05 CN CNA2009101457371A patent/CN101575075A/en active Pending
Cited By (15)
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|---|---|---|---|---|
| WO2011066752A1 (en) * | 2009-12-04 | 2011-06-09 | 湖南三一智能控制设备有限公司 | Main boom telescoping mechanism and vehicle crane with said main boom telescoping mechanism |
| CN102662331A (en) * | 2012-04-17 | 2012-09-12 | 中南大学 | Method for simulating deflection of automobile suspension arm on the basis of virual reality |
| CN103466475B (en) * | 2013-09-12 | 2015-07-08 | 三一汽车起重机械有限公司 | Telescope arm device and crane |
| CN103466475A (en) * | 2013-09-12 | 2013-12-25 | 三一汽车起重机械有限公司 | Telescope arm device and crane |
| CN103950858B (en) * | 2014-04-22 | 2016-04-06 | 云南烟草机械有限责任公司 | A kind of electric steel rope pulley jacking equipment |
| CN103950858A (en) * | 2014-04-22 | 2014-07-30 | 云南烟草机械有限责任公司 | Electric lifting equipment with steel ropes and pulleys |
| CN105417411A (en) * | 2015-12-31 | 2016-03-23 | 徐州重型机械有限公司 | Telescopic boom structure based on multi-stage oil cylinder and crane |
| CN108275586A (en) * | 2018-03-01 | 2018-07-13 | 徐州昊意工程机械科技有限公司 | A kind of telescopic crane boom of link chain mechanism |
| CN108750974A (en) * | 2018-07-13 | 2018-11-06 | 邹城市锦硕矿山设备科技有限公司 | A kind of section telescoping boom of parallel bars seven of crane |
| CN109250631A (en) * | 2018-11-26 | 2019-01-22 | 广东电网有限责任公司 | Telescopic arm is used in the light-weighted push-and-pull of one kind |
| CN109250631B (en) * | 2018-11-26 | 2023-08-25 | 广东电网有限责任公司 | Lightweight telescopic arm for push-pull |
| CN109335974A (en) * | 2018-12-24 | 2019-02-15 | 陈奕松 | A telescopic boom and a crane |
| CN111675119A (en) * | 2020-06-23 | 2020-09-18 | 三一汽车起重机械有限公司 | Telescopic arm of crane and crane |
| CN112831946A (en) * | 2020-12-31 | 2021-05-25 | 海宁市启程智能装备有限公司 | Dyeing apparatus is used in plastic cloth production |
| CN113173518A (en) * | 2021-05-19 | 2021-07-27 | 山东华樱轨道装备有限公司 | Car lifting jack for truck body |
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