CN201334325Y - Three-section crane arm structure capable of stretching in order with loading. - Google Patents
Three-section crane arm structure capable of stretching in order with loading. Download PDFInfo
- Publication number
- CN201334325Y CN201334325Y CNU2008202411056U CN200820241105U CN201334325Y CN 201334325 Y CN201334325 Y CN 201334325Y CN U2008202411056 U CNU2008202411056 U CN U2008202411056U CN 200820241105 U CN200820241105 U CN 200820241105U CN 201334325 Y CN201334325 Y CN 201334325Y
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Abstract
The utility model relates to a three-section crane arm structure capable of stretching in order with loading, belonging to the field of a crane, comprising a basic arm, a double-section arm, a three-section arm, a sliding block device, an amplitude, a telescopic hydro cylinder and a hydraulic electric control system. The turntable pin shaft of the basic arm and the crane is connected with a hinge pin to rotate; the two-section arm is arranged in the basic arm and stretches along an ordinate axis; the three-section arm is arranged in the two-section arm and extends along the same ordinate axis with the two-section arm. The relative position between the section arms is provided with a support and a guide sliding block; a pair of small and large telescopic hydro cylinders are arranged in the three-section arm. In the utility model, the connecting relation between a pair of small and large hydro cylinders and the three-section arm is utilized, and the support and guiding effect of the sliding blocks arranged between arms are utilized too, so that the basic arm, the two-section arm and the three-section arm are capable of finishing the stretching in order, and the crane is capable of stretching in a wider range of the arm length, and is capable of operating under a certain work condition and loading condition, thus improving the working efficiency.
Description
Technical field
The utility model is a kind of can be stretched in proper order and can belong to the hoisting crane field, particularly locomotive crane with carrying three flexible joint boom structures.
Background technology
" Chinese Railway Eleventh Five-Year Plan " guiding Chinese Railway construction has entered comprehensive fast speed developing period, and not only the demand to locomotive crane heightens, and also more and more higher to the requirement of the load-carrying ability of hoisting crane.Therefore improve load-carrying ability and must increase hoisting moment, the requirement of strength to the boom structure of locomotive crane is also just high more.The arm of current rail hoisting crane generally has fixed length arm and scalable two joint arms, and when crane loading transportation weight, the fixed length arm can only come luffing by changing the elevation angle; Scalable two joint arms also can only be in the brachium scope of two joint arms flexible luffing, its range of use is greatly limited.
The utility model content
The utility model purpose provides a kind of can stretch in proper order and can be with carrying three flexible joint boom structures, be used for locomotive crane, can guarantee load-carrying ability, luffing can stretch in bigger brachium scope again, and can be with to carry and stretch, thereby more be widely used in railway breakdown, engineering construction, and railway large-sized object installation along the line etc.
Technical solutions of the utility model are as follows:
The utility model is a kind of can be stretched and can be with carrying three flexible joint boom structures in proper order, comprise basic arm, two joint arms, three joint arms, three joint arms, slide block device, amplitude oil cylinder, telescopic oil cylinder and liquid electric control system, three joint arms are identical polygon cylindrical shell, basic arm connects with turntable bearing pin on the hoisting crane, under the amplitude oil cylinder effect, rotate around bearing pin, two joint arms are installed in the basic arm, flexible along y direction, be characterized in that three joint arms are installed in the two joint arms, flexible along the same longitudinal axis with two joint arms, each saves, and region of interest is provided with support and guide runner between the arm, be respectively arranged with a pair of slide block in basic arm lower head and head both sides, so that being risen, support and directional tagging on two joint arms, in two joint arm head subordinate sides, head both sides and afterbody top are respectively arranged with a pair of slide block, so that three joint arms are played support, directional tagging and favourable himself slip at the basic arm inwall; Above three joint arm afterbodys, be provided with a pair of slide block, slide along two joint arm inwalls in order to himself; Telescopic oil cylinder is made up of a large tank and a small oil tank, is installed in the three joint arms, and the rod end of large tank and basic arm afterbody are connected and fixed with bearing pin, and its cylinder barrel and two joint arm afterbodys are connected and fixed with cotter pilotage; The rod end of small oil tank and two joint arm afterbodys are connected and fixed with bearing pin, and its cylinder barrel and three joint arm afterbodys are connected and fixed with cotter pilotage.
The three joint arms that the design can stretch in proper order, by the annexation between a pair of large and small oil cylinder and the three joint arms, and the support and the directional tagging that respectively save the slide block that is provided with between the arm, it is flexible not only to make this three joints arm of basic arm, two joint arms and three joint arms can finish order freely, make the flexible operation in bigger brachium scope of lifting function, and can be with a year operation under certain condition.
In three joint arms, a pair of slide block that acromere arm head subordinate side is provided with plays a supportive role to its internal segment arm, the a pair of side slide that acromere arm head portion both sides are provided with, the flexible of internal segment arm play the guiding role, and a pair of slide block that internal segment arm afterbody top is provided with slides along acromere arm inwall in order to it; The rod end of large tank and basic arm afterbody are connected and fixed with bearing pin, and cylinder barrel and two joint arm afterbodys are connected and fixed with cotter pilotage, and when large tank was flexible, piston rod maintained static, and cylinder barrel moves with two joint arms; The rod end of small oil tank and two joint arm afterbodys are connected and fixed with bearing pin, its cylinder barrel and three joint arm afterbodys are connected and fixed with cotter pilotage, when small oil tank is not flexible, its cylinder barrel and three joint arms all move with two joint arms, when large tank does not stretch, when only small oil tank was flexible, three joint arms and small oil tank cylinder barrel moved together.
The design's science is simple and direct, and operating maintenance is easy, and by the control of liquid electric system, under load-less condition, three joint arms can be finished the flexible operation of order freely.Its arm semi-girder process is: promote two joint arms, three joint arms and small oil tank by large tank earlier and stretch out together, after stretching out fully, promote three joint arms by small oil tank again and continue to stretch out; The arm arm process that contracts is: by small oil tank three joint arms are returned in the two joint arms earlier, after three joint arms are withdrawn fully, by large tank two joint arms, three joint arms and small oil tank are returned in the basic arm together again.This boom structure, control difficulty and hazard level when significantly having reduced the hoisting arm expansion operation.In addition, because this three joints arm has adopted conventional strengthening rib reinforced structure, and the support guide slide block device is housed in every joint arm head portion and afterbody, thereby make arm can bear bigger moment of flexure, can not only satisfy the mechanics demand that arm is bent when unloaded flexible, and can satisfy arm band portion load and be subjected to curved required requirement of strength when flexible.Therefore, allowing under the operating mode, when lift heavy be not more than rated load 2/3 the time, two joint arms can freely stretch, when lift heavy be not more than rated load 1/3 the time, three joint arms can freely stretch, and this band carries Telescopic effectively to be reduced crane loading and transport the number of times of weight and repeatedly turn round the required time, has improved work efficiency.
Description of drawings
Fig. 1 the utility model boom structure is always schemed
Fig. 2 the utility model arm afterbody A-A section drawing
Fig. 3 the utility model arm afterbody B-B section drawing
Fig. 4 the utility model arm head C-C section drawing
Fig. 5 the utility model arm head D-D section drawing
Fig. 6 the utility model arm afterbody E-E section drawing
The specific embodiment
How now further specify the utility model by installation and operation in conjunction with the accompanying drawings implements:
One, order is installed the design's three joint arms:
1. at first, telescopic oil cylinder integral body is moved in the three joint arms 3, after adjusting to the right place, with the cylinder barrel of small oil tank 9 and three joint arms, 3 afterbodys with being connected and fixed with cotter pilotage 10;
2. then, three joint arms 3 and telescopic oil cylinders are moved in the two joint arms 2 from two joint arms, 2 heads, above three joint arms, 3 afterbodys, about a slide block 7 respectively is housed, slide along two joint arms, 2 inwalls in order to self; In two joint arms 2 lower head, about a slide block 14 respectively is housed, three joint arms 3 are played a supportive role; In two joint arms, 2 head both sides a side slide 13 is housed respectively, three joint the flexible of arm 3 are play the guiding role; After three joint arms 3 move into place, insert cotter pilotage 5, make the cylinder barrel of large tank 8 and two joint arms 2 fixing; Inserting bearing pin 1 fixes the rod end of small oil tank 9 and two joint arms 2.
3. last, two joint arms 2, three joint arms 3 and telescopic oil cylinder integral body are moved in the basic arm 1 from basic arm 1 head, above two joint arms, 2 afterbodys, about a slide block 4 respectively is housed, slide along basic arm 1 inwall in order to himself, a side slide 11 respectively is equipped with in basic arm 1 head both sides, two joint the flexible of arm are play the guiding role, a slide block 12 respectively is housed about basic arm 1 lower head, two joint arm integral body are played a supportive role, after mobile the adjusting to the right place, insert bearing pin 15 rod end of large tank 8 and basic arm 1 are fixed, promptly finish three joint arms and install.
Two, these three flexible in proper order joint arm field conduct operational instructions:
1. when arm extended, the piston rod of large tank 8 maintained static, and cylinder barrel moves forward.Under the effect of cotter pilotage 5, two joint arms 2 stretch out forward with the large tank cylinder barrel; Under the effect of bearing pin 6, small oil tank 9 and three joint arms 3 are all along with two joint arms 2 move forward together.When lift heavy be not more than rated load 2/3 the time, this two joints arm stretch can carry out.
2. after two joint arms 2 stretched out fully, the piston rod of small oil tank 9 maintained static, and cylinder barrel moves forward, under the effect of cotter pilotage 10, three joint arms 3 stretch out forward with the small oil tank cylinder barrel, when lift heavy be not more than rated load 1/3 the time, this three joints arm stretch can carry out.
3. in arm when withdrawal,, the piston rod of small oil tank 9 maintains static, the cylinder barrel withdrawal, under the effect of cotter pilotage 10, three joint arms 3 with the small oil tank cylinder barrel toward retraction, when lift heavy be not more than rated load 1/3 the time, the arm action of contracting of this three joints arm can be carried out.
4. after three joint arms were withdrawn fully, the piston rod of large tank 8 maintained static, the cylinder barrel withdrawal, and under the effect of cotter pilotage 5, two joint arms 2 are withdrawn with the large tank cylinder barrel; Under the effect of bearing pin 6, three joint arms 3 and small oil tank 9 are also along with two joint arms 2 are withdrawn together.When lift heavy be not more than rated load 2/3 the time, the contract arm action of this two joints arm can be carried out.
5. the expanding-contracting action of two joint arms 2 and three joint arms 3 is finished by liquid electric system automatic guidance.
Claims (5)
1, a kind of can stretch in proper order and can be with carrying three flexible joint boom structures, comprise basic arm, two joint arms, three joint arms, three joint arms, slide block device, amplitude oil cylinder, telescopic oil cylinder and liquid electric control system, three joint arms are identical polygon cylindrical shell, basic arm connects with turntable bearing pin on the hoisting crane, under the amplitude oil cylinder effect, rotate around bearing pin, two joint arms are installed in the basic arm, flexible along y direction, it is interior and flexible along the same longitudinal axis with two joint arms to it is characterized in that three joint arms are installed in two joint arms, each saves, and region of interest is provided with support and guide runner between the arm, and telescopic oil cylinder is made up of a large tank and a small oil tank, is installed in the three joint arms, the rod end of large tank and basic arm afterbody are connected and fixed with bearing pin, its cylinder barrel and two joint arm afterbodys are connected and fixed with cotter pilotage, and the rod end of small oil tank and two joint arm afterbodys are connected and fixed with bearing pin, and its cylinder barrel and three joint arm afterbodys are connected and fixed with cotter pilotage.
2, according to claim 1ly a kind ofly can stretch in proper order and can it is characterized in that being respectively arranged with a pair of slide block with carrying three flexible joint boom structures in basic arm lower head and head both sides.
3, according to claim 1ly a kind ofly can stretch in proper order and can it is characterized in that above two joint arm head subordinate sides, head both sides and afterbody, being respectively arranged with a pair of slide block with carrying three flexible joint boom structures.
4, according to claim 1ly a kind ofly can stretch in proper order and can it is characterized in that above three joint arm afterbodys, being provided with a pair of slide block with carrying three flexible joint boom structures.
5, according to claim 1ly a kind ofly can stretch in proper order and can it is characterized in that the identical polygon cylindrical shells of three joint arms are the octagon cylindrical shell with carrying three flexible joint boom structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202411056U CN201334325Y (en) | 2008-12-30 | 2008-12-30 | Three-section crane arm structure capable of stretching in order with loading. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202411056U CN201334325Y (en) | 2008-12-30 | 2008-12-30 | Three-section crane arm structure capable of stretching in order with loading. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201334325Y true CN201334325Y (en) | 2009-10-28 |
Family
ID=41285974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202411056U Expired - Lifetime CN201334325Y (en) | 2008-12-30 | 2008-12-30 | Three-section crane arm structure capable of stretching in order with loading. |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201334325Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152110A (en) * | 2011-01-31 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Jib assembling system and assembling method |
| CN103318782A (en) * | 2013-06-07 | 2013-09-25 | 三一汽车起重机械有限公司 | Boom main arm composite structure, crane, and boom main arm composition method |
| CN106006412A (en) * | 2016-06-06 | 2016-10-12 | 梁协铭 | Eight-section lazy arm for crane |
| CN110732862A (en) * | 2019-11-23 | 2020-01-31 | 郑州弗曼智能设备科技有限公司 | Press mounting method and press mounting platform for arm pin shaft of pump truck |
-
2008
- 2008-12-30 CN CNU2008202411056U patent/CN201334325Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152110A (en) * | 2011-01-31 | 2011-08-17 | 长沙中联重工科技发展股份有限公司 | Jib assembling system and assembling method |
| CN103318782A (en) * | 2013-06-07 | 2013-09-25 | 三一汽车起重机械有限公司 | Boom main arm composite structure, crane, and boom main arm composition method |
| CN106006412A (en) * | 2016-06-06 | 2016-10-12 | 梁协铭 | Eight-section lazy arm for crane |
| CN110732862A (en) * | 2019-11-23 | 2020-01-31 | 郑州弗曼智能设备科技有限公司 | Press mounting method and press mounting platform for arm pin shaft of pump truck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091028 |
|
| CX01 | Expiry of patent term |