CN110510533B - Double-oil-pipe tracking conveying mechanism - Google Patents
Double-oil-pipe tracking conveying mechanism Download PDFInfo
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- CN110510533B CN110510533B CN201910796055.0A CN201910796055A CN110510533B CN 110510533 B CN110510533 B CN 110510533B CN 201910796055 A CN201910796055 A CN 201910796055A CN 110510533 B CN110510533 B CN 110510533B
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- wire rope
- oil pipe
- pulley
- arm
- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
Abstract
The invention discloses a double-oil-pipe tracking conveying mechanism.A sliding block mechanism is arranged between a first-section arm and a second-section arm and between the second-section arm and a third-section arm, and comprises a sliding block, wherein a first oil pipe pulley and a second oil pipe pulley are fixed on the sliding block and rotate relative to the sliding block; the two ends of the sliding block are respectively provided with a first steel wire rope component and a second steel wire rope component, the first steel wire rope pulley of the first steel wire rope component and the second steel wire rope pulley of the second steel wire rope component are respectively fixed at the two ends of the sliding block and rotate relative to the sliding block, the two ends of the first steel wire rope are respectively connected with the opening part of the first section of arm and the opening part of the second section of arm by bypassing the first steel wire rope pulley, the two ends of the second steel wire rope are respectively connected with the tail part of the first section of arm and the tail part of the second section of arm by bypassing the second steel wire rope pulley, the tracking oil pipe conveying mechanism can respectively supply oil to the 1-stage cylinder of the I # oil cylinder, the 2-stage cylinder of the I # oil cylinder and the II # oil cylinder or supply.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a double-oil-pipe tracking conveying mechanism of a telescopic boom.
Background
With the development of industries such as building installation engineering, national defense and the like, the telescopic boom structure is widely applied in engineering practice. The advantage is that it has a greater load-bearing capacity at small amplitudes, a longer working distance and a higher working height under permissible load conditions. The telescopic arm structure is widely used for engineering vehicles or other transportation tools.
A six-section arm automobile crane adopts single-cylinder bolt technology to stretch telescopic arms in most manufacturers at present, and is characterized in that a telescopic arm assembly is light in weight and can effectively improve the lifting performance, but the telescopic arm assembly has the defects of low operation efficiency caused by long stretching time, high production cost caused by the fact that each section of telescopic arm can only stretch to a set proportion, and difficult popularization on medium and small tonnage cranes.
The five-section arm automobile crane usually adopts two oil cylinders and two sets of telescopic arm steel wire ropes to realize telescopic arm extension, in order to achieve the operation at a longer distance, the extension mode is applied to the six-section arm crane, namely, the I # oil cylinder adopts a multi-stage cylinder (two-stage cylinder) to respectively control two-section arm extension and three-section arm extension, the II # oil cylinder and two sets of telescopic arm steel wire ropes control four-section arm extension, five-section arm extension and six-section arm extension, and the oil supply problem is solved through an oil pipe tracking mechanism. Aiming at the problem of oil supply, the original method is that an oil passing hose is respectively arranged between a first section arm and a second section arm and between the second section arm and the third section arm, and the oil passing hose is driven by a pulley to supply oil. The method has the advantages that the tracking pipe cannot be effectively fixed and cannot run according to a preset route, the internal space of the telescopic arm is narrow, the number of parts is large, the hidden danger of interference and damage is large, the replacement is difficult, and the reliability in practical application is poor. In addition, the volume change of the cylinder core tube can cause the cylinder to retract suddenly when the boom is extended, namely, in the actual work, the telescopic boom can retract a distance suddenly when the boom is extended, so that potential safety hazards are easily caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-oil-pipe tracking conveying mechanism which can respectively supply oil to a 1-stage cylinder of an I # oil cylinder, a 2-stage cylinder of the I # oil cylinder and a II # oil cylinder or supply oil in any combination, ensure that the oil can be effectively supplied to any arm length position and can effectively guide and track the running path of an oil pipe.
The technical scheme adopted by the invention is as follows: a double-oil-pipe tracking conveying mechanism comprises
The first oil pipe and the second oil pipe are respectively arranged between a first section of arm and a second section of arm of the crane and between the second section of arm and the third section of arm to supply oil to the oil cylinder; the first oil pipe pulley and the second oil pipe pulley drive the first oil pipe and the second oil pipe to supply oil; the oil pipe oil-gas separator further comprises a sliding block mechanism arranged between the first section of arm and the second section of arm and between the second section of arm and the third section of arm, the sliding block mechanism comprises a sliding block positioned in a sliding groove in the middle of the upper surface of the second section of arm or the third section of arm, a first oil pipe pulley and a second oil pipe pulley are fixed on the sliding block, and the first oil pipe pulley and the second oil pipe pulley rotate relative to the sliding block; still including fixing first wire rope subassembly, the second wire rope subassembly at the slider both ends, first wire rope subassembly includes first wire rope pulley, first wire rope, the second wire rope subassembly includes second wire rope pulley, second wire rope, and first wire rope pulley, second wire rope pulley are fixed respectively at the both ends of slider, and first wire rope pulley, the relative slider of second wire rope pulley rotate, and first wire rope's both ends are walked around first wire rope pulley and are linked to each other with a section of arm oral area, two sections of arm oral areas respectively, and second wire rope's both ends are walked around second wire rope pulley and are linked to each other with a section of arm afterbody, two sections of arm afterbody respectively.
The invention has the beneficial effects that:
(1) the tracking oil pipe conveying mechanism can respectively supply oil to the I # oil cylinder 1-level cylinder, the I # oil cylinder 2-level cylinder and the II # oil cylinder or supply oil in any combination, so that each section of telescopic arm of the crane can independently stretch and retract, and the telescopic arm can operate at any arm length.
(2) Because each oil pipe independently supplies oil for the telescopic boom, the problem that the telescopic boom can retract a distance suddenly when extending the boom is solved.
Drawings
Fig. 1 is a schematic structural diagram of the double-tubing tracking conveying mechanism of the invention.
FIG. 2 is a schematic view of the connection of the oil pipe at the tail of the telescopic boom of the present invention.
Labeled as: 1-connecting plate, 2-first steel wire rope, 3-slider cover, 4-first oil pipe pulley, 5-second oil pipe pulley, 6-first steel wire rope pulley, 7-slider, 8-pulley shaft, 9-first oil pipe, 10-second oil pipe, 11-pipe clamp, 12-second steel wire rope pulley, 13-adjusting nut, 14-locking nut, 15-first hose, 16-second hose, 17-first arm, 18-second arm, 19-third arm, 20-oil pipe pulley cover and 21-steel wire rope pulley cover.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The invention discloses an improvement on an oil supply tracking and conveying structure of an oil pipe on the basis of realizing telescopic boom extension by adopting two oil cylinders and two sets of telescopic boom steel wire ropes based on the existing six-section boom telescopic boom structure.
As shown in fig. 1 and 2, the double-oil-pipe tracking conveying mechanism of the invention comprises a first oil pipe 9 and a second oil pipe 10 which are respectively arranged between a first-section arm 17 and a second-section arm 18 of a crane and between the second-section arm 18 and a third-section arm 19 of the crane and supply oil to an oil cylinder, and a first oil pipe pulley 4 and a second oil pipe pulley 5 which drive the first oil pipe 9 and the second oil pipe 10 to supply oil. The first oil pipe 9 and the second oil pipe 10 of the adjacent knuckle arms are communicated through a first hose 15 and a second hose 16 respectively, so that oil passages of the two sets of slide block mechanisms are communicated. Specifically, the diameter of first oil pipe pulley 4 is greater than the diameter of second oil pipe pulley 5, and after the installation, the oil pipe that walks around second oil pipe pulley 5 is parallel to the oil pipe that walks around first oil pipe pulley 4, and the oil pipe that walks around second oil pipe pulley 5 is located the inboard of the oil pipe that walks around first oil pipe pulley 4.
In order to fix and guide the first oil pipe 9 and the second oil pipe 10, a sliding block mechanism is arranged between the first-section arm 17 and the second-section arm 18 and between the second-section arm 18 and the third-section arm 19, the sliding block mechanism comprises a sliding block 7, the sliding block 7 between the first-section arm 17 and the second-section arm 18 is taken as an example, during initial installation, the sliding block 7 is positioned in a sliding groove in the middle of the upper surface of the second-section arm 18, lubricating oil is injected into the sliding groove to enable the sliding block 7 to run smoothly, the first oil pipe pulley 4 and the second oil pipe pulley 5 are fixed on the sliding block 7, and the first oil pipe pulley 4 and the second oil pipe pulley 5 rotate relative to the sliding block 7.
In order to supply oil to the first oil pipe 9 and the second oil pipe 10 according to a given track, a first steel wire rope component and a second steel wire rope component are respectively arranged at two ends of the sliding block 7, the first steel wire rope component comprises a first steel wire rope pulley 6 and a first steel wire rope 2, the second steel wire rope component comprises a second steel wire rope pulley 12 and a second steel wire rope, the first steel wire rope pulley 6 and the second steel wire rope pulley 12 are respectively fixed at two ends of the sliding block 7, the first steel wire rope pulley 6 and the second steel wire rope pulley 12 rotate relative to the sliding block 7, two ends of the first steel wire rope 2 are respectively connected with an opening part of the first joint arm 17 and an opening part of the second joint arm 18 by bypassing the first steel wire rope pulley 6, and two ends of the second steel wire rope are respectively connected with a tail part of the first. The oil pipe and the steel wire rope on one side are connected to the tail part of the same section of arm 17, so that friction damage of the oil pipe caused by relative movement is avoided. The mechanism of the slider 7 between the two-joint arm 18 and the three-joint arm 19 is mounted in the same manner as the mechanism of the slider 7 between the one-joint arm 17 and the two-joint arm 18.
Based on the structural arrangement of the oil pipe, the sliding block 7 and the steel wire rope, the I # oil cylinder 1-stage cylinder, the I # oil cylinder 2-stage cylinder and the II # oil cylinder can respectively supply oil or supply oil in any combination, namely the two-section arm 18, the three-section arm 19 and the four-five-six-section arm can respectively stretch and retract, so that the crane boom can stretch and retract freely, and when any one of the I # oil cylinder 1-stage cylinder, the I # oil cylinder 2-stage cylinder or the II # oil cylinder stretches and retracts, the first steel wire rope 2 and the second steel wire rope can both carry the sliding block 7 to move, so that the synchronous conveying of the first oil pipe 9 and the second oil pipe 10 is realized, and the oil supply operation can be.
Further, the first oil pipe 9 and the second oil pipe 10 are arranged in parallel, the positions close to the ends of the first oil pipe 9 and the second oil pipe 10 are fixed through pipe clamps 11, the pipe clamps 11 are specifically fixed inside the first knuckle arm and the upper portion of the second knuckle arm respectively, and the pipe clamps 11 are arranged on the hose to guide the path of the hose and improve the reliability of the hose joint.
Furthermore, first wire rope 2, second wire rope all are connected with a section of arm 17 oral area and two sections of 18 oral areas of arm respectively through detachable connecting plate 1, adopt bolted connection between connecting plate 1 and a section of arm 17 oral area, two sections of 18 oral areas of arm, and the installation of being convenient for can dismantle avoids wire rope installation to interfere.
Furthermore, both ends of the first steel wire rope 2 and the second steel wire rope are respectively provided with a screw, and the screws are connected with the connecting plate 1 through adjusting nuts 13 and locking nuts 14, so that the tightness of the steel wire ropes can be conveniently adjusted.
Furthermore, a protective cover is arranged on the sliding block 7, the protective cover comprises a sliding block cover 3, an oil pipe pulley cover 20 and a steel wire rope pulley cover 21, the protective cover is respectively arranged at the first oil pipe pulley 4, the second oil pipe pulley 5, the first steel wire rope pulley 6 and the second steel wire rope pulley 12, the sliding block cover 3, the oil pipe pulley cover 20 and the steel wire rope pulley cover 21 respectively guide and protect the oil pipe and the steel wire rope, and contact parts of the sliding block cover 3 and the oil pipe pulley cover 20 with the first oil pipe 9 and the second oil pipe 10 are bent inwards to reduce friction between the oil pipe and the protective cover and prolong the service life of the oil pipe. The pulley cover, the oil pipe pulley cover 20 and the steel wire rope pulley cover 21 are connected with the sliding block 7 through bolts, and reliability is good. The first oil pipe pulley 4, the second oil pipe pulley 5, the first steel wire rope pulley 6 and the second steel wire rope pulley 12 are all installed on the sliding block 7 through pulley shafts 8.
Furthermore, the first oil pipe 9 and the second oil pipe 10 are made of wear-resistant rubber hoses, so that the wear-resistant rubber hoses can bear smaller tensile force and friction force, reduce the wear of the oil pipes and prolong the service life of the oil pipes. Furthermore, in order to reduce the overall weight of the slider mechanism, the slider 7, the first oil pipe pulley 4, the second oil pipe pulley 5, the first steel wire rope pulley 6 and the second steel wire rope pulley 12 are made of nylon materials.
Claims (12)
1. A double-oil-pipe tracking conveying mechanism comprises
The first oil pipe (9) and the second oil pipe (10) are respectively arranged between a first-section arm (17) and a second-section arm (18) of the crane and between the second-section arm (18) and a third-section arm (19) of the crane for supplying oil to the oil cylinder;
a first oil pipe pulley (4) and a second oil pipe pulley (5) which drive the first oil pipe (9) and the second oil pipe (10) to supply oil;
the method is characterized in that: the oil pipe oil-gas separator further comprises a sliding block mechanism arranged between the first section of arm (17) and the second section of arm (18) and between the second section of arm (18) and the third section of arm (19), the sliding block mechanism comprises a sliding block (7) positioned in a sliding groove in the middle of the upper surface of the second section of arm (18) or the third section of arm (19), the first oil pipe pulley (4) and the second oil pipe pulley (5) are fixed on the sliding block (7), and the first oil pipe pulley (4) and the second oil pipe pulley (5) rotate relative to the sliding block (7); still including fixing first wire rope subassembly, the second wire rope subassembly at slider (7) both ends, first wire rope subassembly includes first wire rope pulley (6), first wire rope (2), the second wire rope subassembly includes second wire rope pulley (12), second wire rope, first wire rope pulley (6), second wire rope pulley (12) are fixed respectively at the both ends of slider (7), first wire rope pulley (6), the relative slider (7) rotation of second wire rope pulley (12), the both ends of first wire rope (2) are walked around first wire rope pulley (6) and are linked to each other with a section of arm (17) oral area, two sections of arm (18) oral areas respectively, the both ends of second wire rope are walked around second wire rope pulley (12) and are linked to each other with a section of arm (17) afterbody, two sections of arm (18) afterbody respectively.
2. The dual tubing tracking conveyor of claim 1, wherein: the first oil pipe (9) and the second oil pipe (10) are arranged in parallel, the positions, close to the end parts, of the first oil pipe (9) and the second oil pipe (10) are fixed through pipe clamps (11), and the pipe clamps (11) are respectively fixed on a first-section arm (17) and a second-section arm (18).
3. The dual tubing tracking conveyor of claim 1, wherein: the first oil pipe (9) and the second oil pipe (10) of the adjacent knuckle arms are communicated through a first hose (15) and a second hose (16) respectively.
4. The dual tubing tracking conveyor of claim 1, wherein: the first steel wire rope (2) and the second steel wire rope are respectively connected with the opening part of the first arm (17) and the opening part of the second arm (18) through a detachable connecting plate (1), and the connecting plate (1) is connected with the opening part of the first arm (17) and the opening part of the second arm (18) through bolts.
5. The dual tubing tracking conveyor of claim 4, wherein: the two ends of the first steel wire rope (2) and the second steel wire rope are respectively provided with a screw rod, and the screw rods are connected with the connecting plate (1) through adjusting nuts (13) and locking nuts (14).
6. The dual tubing tracking conveyor mechanism of any of claims 1 to 5, wherein: the oil pipe oil-gas well drilling device is characterized in that a protective cover is arranged on the sliding block (7), comprises a sliding block cover (3), an oil pipe pulley cover (20) and a steel wire rope pulley cover (21), and is respectively installed at a first oil pipe pulley (4), a second oil pipe pulley (5), a first steel wire rope pulley (6) and a second steel wire rope pulley (12).
7. The dual tubing tracking conveyor of claim 6, wherein: the contact parts of the slide block cover (3) and the oil pipe slide wheel cover (20) with the first oil pipe (9) and the second oil pipe (10) are bent inwards.
8. The dual tubing tracking conveyor of claim 7, wherein: the first oil pipe pulley (4), the second oil pipe pulley (5), the first steel wire rope pulley (6) and the second steel wire rope pulley (12) are all installed on the sliding block (7) through pulley shafts (8).
9. The dual tubing tracking conveyor of claim 7, wherein: the first oil pipe (9) and the second oil pipe (10) are both made of wear-resistant rubber hoses.
10. The dual tubing tracking conveyor of claim 7, wherein: the sliding block (7), the first oil pipe pulley (4), the second oil pipe pulley (5), the first steel wire rope pulley (6) and the second steel wire rope pulley (12) are all made of nylon materials.
11. The dual tubing tracking conveyor of claim 6, wherein: the first oil pipe (9) and the second oil pipe (10) are both made of wear-resistant rubber hoses.
12. The dual tubing tracking conveyor of claim 6, wherein: the sliding block (7), the first oil pipe pulley (4), the second oil pipe pulley (5), the first steel wire rope pulley (6) and the second steel wire rope pulley (12) are all made of nylon materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796055.0A CN110510533B (en) | 2019-08-27 | 2019-08-27 | Double-oil-pipe tracking conveying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910796055.0A CN110510533B (en) | 2019-08-27 | 2019-08-27 | Double-oil-pipe tracking conveying mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110510533A CN110510533A (en) | 2019-11-29 |
| CN110510533B true CN110510533B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910796055.0A Active CN110510533B (en) | 2019-08-27 | 2019-08-27 | Double-oil-pipe tracking conveying mechanism |
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| CN (1) | CN110510533B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111704043B (en) * | 2020-06-17 | 2022-05-24 | 柳州柳工挖掘机有限公司 | Telescopic boom structure, operation boom and engineering machinery |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3623501A (en) * | 1970-07-13 | 1971-11-30 | Chance Co Ab | Continuous hydraulic hose structure for telescopic boom assembly |
| JP4687172B2 (en) * | 2005-03-18 | 2011-05-25 | コベルコクレーン株式会社 | Telescopic boom |
| JP5176527B2 (en) * | 2007-08-17 | 2013-04-03 | コベルコクレーン株式会社 | Telescopic boom |
| KR100990328B1 (en) * | 2010-04-13 | 2010-10-29 | 이점수 | Telescopic boom crane with oil-free slide plates type |
| CN201737659U (en) * | 2010-08-31 | 2011-02-09 | 湖南山河智能机械股份有限公司 | Oil tube conveying mechanism of telescopic handler manipulator |
| JP6604818B2 (en) * | 2015-10-29 | 2019-11-13 | 株式会社加藤製作所 | Jib hoisting device for work equipment |
| CN207347016U (en) * | 2017-09-12 | 2018-05-11 | 四川长江工程起重机有限责任公司 | A kind of autocrane oil pipe tracks conveying mechanism |
| CN207986548U (en) * | 2018-01-16 | 2018-10-19 | 杭州爱知工程车辆有限公司 | A kind of mounting structure of high-altitude operation vehicle telescopic arm inner oil tube |
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- 2019-08-27 CN CN201910796055.0A patent/CN110510533B/en active Active
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