CN103613009A - Crawler crane - Google Patents
Crawler crane Download PDFInfo
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- CN103613009A CN103613009A CN201310629897.XA CN201310629897A CN103613009A CN 103613009 A CN103613009 A CN 103613009A CN 201310629897 A CN201310629897 A CN 201310629897A CN 103613009 A CN103613009 A CN 103613009A
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- supporting mechanism
- crawler crane
- chassis
- valve
- turntable
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Abstract
The invention discloses a crawler crane. The crawler crane comprises a power device, a working mechanism, a movable arm, a rotary table and a base plate, wherein the rotary table is arranged on the base plate; the base plate and the rotary table are connected by a supporting mechanism and a vibration absorption mechanism; the supporting mechanism comprises a main supporting mechanism and an auxiliary supporting mechanism; the main supporting mechanism is arranged in the middle part of the base plate; the auxiliary supporting mechanism comprises at least two hydraulic oil cylinder systems arranged at the edge of the base plate. According to the crawler crane, the main supporting mechanism and the auxiliary supporting mechanism are arranged and a partial gap between the base plate and the rotary table is adjusted by hydraulic cylinders of the auxiliary supporting mechanism, so that the rotary table is kept on one horizontal plane all the time, center-of-gravity shift caused by suspending a heavy object is prevented, and the crane is prevented from being turned on one side due to the weight of a cantilever and the like of the crane and moment shift caused by the center-of-gravity shift; the performance of the crawler crane is improved.
Description
Technical field
The present invention relates to a kind of construction machinery and equipment, particularly a kind of crawler crane.
Background technology
Crawler crane is the self-propelled crane that a kind of high-building construction is used, and it is a kind of track-type swing arm rotary crane that utilizes.Track area is large, and crossing ability is good, and strong adaptability can be with and carry walking, is applicable to the lifting operation of building ground.Can cut the earth, ram the several work such as soil, piling.
Crawler crane is comprised of engine installation, operating mechanism and swing arm, turntable, chassis etc., because hoisting crane is used for lifting weight, add the unsettled centre-of gravity shift that causes of weight, add the weight of the cantilever etc. of hoisting crane, the skew of the moment causing with its centre-of gravity shift, easily cause the rollover of hoisting crane, therefore must add the weight of large chassis to guarantee the safety of hoisting crane, but excessive weight can cause the load of crane travelling gear, also can make the damage of hoisting crane road pavement larger, also can have larger impact to the operating environment of hoisting crane simultaneously simultaneously.As the weight that alleviates chassis can cause again the charge capacity of the lifting of hoisting crane to reduce.
Summary of the invention
For addressing the above problem, the invention discloses a kind of crawler crane.
In order to achieve the above object, the invention provides following technical scheme: a kind of crawler crane, comprise engine installation, operating mechanism, swing arm, turntable and chassis, described turntable is arranged on described chassis, between described chassis and described turntable, by supporting device and damping, be connected, described supporting device comprises main supporting device and assistant supporting mechanism, described main supporting device is arranged on the middle part on described chassis, described assistant supporting mechanism comprises at least two hydraulic ram systems that are separately positioned on the edge on chassis, described hydraulic ram system comprises hydraulic actuating cylinder, motor, the pump housing, check valve, electromagnetic valve and by pass valve, described motor, the pump housing, check valve, electromagnetic valve is connected successively by conduit under fluid pressure, between the described pump housing and check valve, be provided with the by pass valve for safety device, described electromagnetic valve is connected with PLC controller.
As a modification of the present invention, on described turntable, be provided with angular transducer, described angular transducer is connected with PLC controller.
As a modification of the present invention, described electromagnetic valve is electro-hydraulic proportional valve.
As a modification of the present invention, between described check valve and electromagnetic valve, be connected with an accumulator.
A kind of crawler crane provided by the invention, by main supporting device and assistant supporting mechanism are set, hydraulic actuating cylinder by assistant supporting mechanism is adjusted the local gap between chassis and turntable, turntable is remained on a horizontal surface, prevented because the unsettled centre-of gravity shift causing of weight, and the weight that adds the cantilever etc. of hoisting crane, the skew of the moment causing with its centre-of gravity shift, cause the rollover of hoisting crane, by this design, can effectively alleviate the weight on chassis, also can increase the load capacity of crawler crane simultaneously, improved the performance of crawler crane.By angular transducer being set and PLC controller being set, can realize automatically adjustment function, its accuracy rate is more increased simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Reference numerals list:
1 motor, 2 pump housings, 3 by pass valves, 4 check valves, 5 turntables, 6 electromagnetic valves, 7 accumulators, 8 hydraulic actuating cylinders, 9 angular transducers, 10 chassis, 11 dampings, 12 main supporting devices, 13PLC controller.
The specific embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is elaborated, should understands the following specific embodiment and only for the present invention is described, is not used in and limits the scope of the invention.
A kind of crawler crane, comprise engine installation, operating mechanism, swing arm, turntable and chassis, the chassis of its bottom and the connection structure of turntable are as shown in Figure 1, turntable 5 is arranged on described chassis 10, between described chassis 10 and described turntable 5, by supporting device and damping 11, be connected, described supporting device comprises main supporting device 12 and assistant supporting mechanism.Described main supporting device 12 is arranged on the middle part on described chassis 10, described assistant supporting mechanism comprises at least two hydraulic ram systems that are separately positioned on the edge on chassis 10, described hydraulic ram system comprises hydraulic actuating cylinder 8, motor 1, the pump housing 2, check valve 4, electromagnetic valve 6 and by pass valve 3, described motor 1, the pump housing 3, check valve 4, electromagnetic valve 6 are connected successively by conduit under fluid pressure, are provided with the by pass valve 3 for safety device between the described pump housing 2 and check valve 4; Described electromagnetic valve 6 is connected with PLC controller.
Further, be provided with angular transducer 9 on described turntable 5, described angular transducer 9 is connected with PLC controller 13.By angular transducer 9, can measure the angle in each orientation of turntable 5, then control by PLC controller 13 hydraulic actuating cylinder 8 adjustable heights that electromagnetic valve 6 is controlled assistant supporting mechanism, guarantee the accuracy of system and the stability of mechanism.
Further, described electromagnetic valve 6 is electro-hydraulic proportional valve, by electro-hydraulic proportional valve is set, can more accurately control the distance of rising or the decline of hydraulic actuating cylinder 8, has improved further the accuracy rate of system.
Further, be connected with an accumulator 14 between described check valve and electromagnetic valve, accumulator 14 can store the unnecessary pressure oil of Hydraulic Pump output.When system needs, by energy storage, discharged.Can reduce the rated flow of Hydraulic Pump like this, thereby reduce power of motor consumption, reduce hydraulic efficiency pressure system temperature rise, because the long-time of hoisting crane worked under severe working environment, impact during by the pressure jump of energy device energy absorption system, as Hydraulic Pump starts or stops suddenly, hydraulic valve cuts out suddenly or opens, and hydraulic actuating cylinder moves suddenly or stops; Also the caused pressure pulsation of flow pulsation in the time of absorbing hydraulic pump works, the service life of having improved system.
A kind of crawler crane provided by the invention, by main supporting device and assistant supporting mechanism are set, hydraulic actuating cylinder by assistant supporting mechanism is adjusted the local gap between chassis and turntable, turntable is remained on a horizontal surface, prevented because the unsettled centre-of gravity shift causing of weight, and the weight that adds the cantilever etc. of hoisting crane, the skew of the moment causing with its centre-of gravity shift, cause the rollover of hoisting crane, by this design, can effectively alleviate the weight on chassis, also can increase the load capacity of crawler crane simultaneously, improved the performance of crawler crane.By angular transducer being set and PLC controller being set, can realize automatically adjustment function, its accuracy rate is more increased simultaneously.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being comprised of above technical characterictic combination in any.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (4)
1. a crawler crane, comprise engine installation, operating mechanism, swing arm, turntable and chassis, it is characterized in that: described turntable is arranged on described chassis, between described chassis and described turntable, by supporting device and damping, be connected, described supporting device comprises main supporting device and assistant supporting mechanism, described main supporting device is arranged on the middle part on described chassis, described assistant supporting mechanism comprises at least two hydraulic ram systems that are separately positioned on the edge on chassis, described hydraulic ram system comprises hydraulic actuating cylinder, motor, the pump housing, check valve, electromagnetic valve and by pass valve, described motor, the pump housing, check valve, electromagnetic valve is connected successively by conduit under fluid pressure, between the described pump housing and check valve, be provided with the by pass valve for safety device, described electromagnetic valve is connected with PLC controller.
2. a kind of crawler crane according to claim 1, is characterized in that: on described turntable, be provided with angular transducer, described angular transducer is connected with PLC controller.
3. a kind of crawler crane according to claim 1, is characterized in that: described electromagnetic valve is electro-hydraulic proportional valve.
4. a kind of crawler crane according to claim 1, is characterized in that: between described check valve and electromagnetic valve, be connected with an accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629897.XA CN103613009A (en) | 2013-12-02 | 2013-12-02 | Crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629897.XA CN103613009A (en) | 2013-12-02 | 2013-12-02 | Crawler crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103613009A true CN103613009A (en) | 2014-03-05 |
Family
ID=50163739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310629897.XA Pending CN103613009A (en) | 2013-12-02 | 2013-12-02 | Crawler crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103613009A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495651A (en) * | 2014-12-12 | 2015-04-08 | 中国一冶集团有限公司 | Automatic synchronous bottom oil cylinder jacking and lowering device of crawling crane |
| CN110589680A (en) * | 2019-08-19 | 2019-12-20 | 中铁九桥工程有限公司 | Multi-point load-sharing supporting walking system applied to bridge deck girder erection crane |
| CN113682984A (en) * | 2021-08-31 | 2021-11-23 | 张德宝 | Mountain land balance crane |
-
2013
- 2013-12-02 CN CN201310629897.XA patent/CN103613009A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104495651A (en) * | 2014-12-12 | 2015-04-08 | 中国一冶集团有限公司 | Automatic synchronous bottom oil cylinder jacking and lowering device of crawling crane |
| CN110589680A (en) * | 2019-08-19 | 2019-12-20 | 中铁九桥工程有限公司 | Multi-point load-sharing supporting walking system applied to bridge deck girder erection crane |
| CN113682984A (en) * | 2021-08-31 | 2021-11-23 | 张德宝 | Mountain land balance crane |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140305 |