CN116002543A - Single-cylinder synchronous telescoping device and crane - Google Patents
Single-cylinder synchronous telescoping device and crane Download PDFInfo
- Publication number
- CN116002543A CN116002543A CN202211639013.4A CN202211639013A CN116002543A CN 116002543 A CN116002543 A CN 116002543A CN 202211639013 A CN202211639013 A CN 202211639013A CN 116002543 A CN116002543 A CN 116002543A
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- fixed
- telescopic
- rope
- arm
- pulley
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 241000287828 Gallus gallus Species 0.000 claims description 9
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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Classifications
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a single-cylinder synchronous telescoping device and a crane, which comprises a telescoping cylinder, a bracket, a rope row, a telescoping guy cable, a recovery guy cable, a basic arm, and one extending arm, two extending arms and three extending arms which are sequentially overlapped in the basic arm, wherein the bracket is fixed on the upper part of the telescoping cylinder, one end of the telescoping cylinder is fixed on the basic arm, the other end of the telescoping cylinder is fixed on the one extending arm, one end of the rope row is fixed on the basic arm, the other end of the rope row is fixed on the two extending arms by bypassing a first pulley on the telescoping cylinder, one end of the telescoping guy cable is fixed on the one extending arm, the other end of the telescoping guy cable is fixed on the three extending arm by bypassing a second pulley on the two extending arms, one end of the recovery guy cable is fixed on the one extending arm, and the other end of the recovery guy cable is fixed on the three extending arms by bypassing a third pulley on the bracket and a fourth pulley on the telescoping cylinder. The invention has balanced stress, difficult damage, small size and light weight.
Description
Technical Field
The invention relates to engineering machinery, in particular to a single-cylinder synchronous telescoping device and a crane.
Background
The crane boom is a main operation mechanism of the crane, and the length of the boom body is changed mainly through the movement of the telescopic mechanism inside the boom body, so that the operation working conditions with different amplitudes are realized. At present, four sections of arms are mostly adopted by a crane, particularly a lorry-mounted crane, the arm body mainly adopts a synchronous telescopic mechanism, and two sets of stretching inhaul cables are adopted in a common arrangement mode, and two sets of recovering inhaul cables are correspondingly arranged at the same time to realize synchronous stretching and recovering of the arm body. The structure is as follows: 1. the arrangement is complex, the quantity of the inhaul cables is more and difficult to adjust, and the phenomenon of unbalanced stress is easy to occur; 2. the tail part of the arm body is provided with more recovery pulleys and inhaul cable joints, so that the lap joint length of the arm body is reduced, and the telescopic stress of the arm body is influenced; 3. the recovery pulley is easy to interfere with the telescopic oil cylinder in the height direction, so that the height of the arm body is influenced, and the weight of the arm body is increased.
Aiming at the problems, the main solutions of the prior art are as follows: 1. aiming at uneven stress of the inhaul cable, in the process of adjusting the inhaul cable, the exposed lengths of the two screw rods are adjusted to be consistent, so that the influence of human factors is avoided, and the assembly consistency is improved; 2. the space occupation of the telescopic arm tail pulley is larger, the existing product is mainly solved by increasing the length of the arm body, but the method has larger total length and size of the arm body, increases the dead weight of the product, and influences the operation stability and the production economy; 3. the recovery pulley is fixed with the cable at the arm tail installation, and the telescopic cylinder needs to stretch out and draw back at the pulley downside, increases the arm body height and avoids interfering, but this method telescopic cylinder needs to stretch out and draw back at the pulley downside, produces the interference easily, increases the arm body height, causes the arm weight to increase.
Disclosure of Invention
The invention aims to: the invention provides a single-cylinder synchronous telescoping device and a crane aiming at the problems existing in the prior art.
The technical scheme is as follows: the invention discloses a single-cylinder synchronous telescoping device which comprises a telescoping cylinder, a bracket, a rope row, a telescoping guy cable, a recovery guy cable, a basic arm, and a first extending arm, a second extending arm and a third extending arm which are sequentially overlapped in the basic arm, wherein the bracket is fixed on the upper part of the telescoping cylinder, one end of the telescoping cylinder is fixed on the basic arm, the other end of the telescoping cylinder is fixed on the first extending arm, one end of the rope row is fixed on the basic arm, the other end of the rope row is fixed on the second extending arm by bypassing a first pulley on the telescoping cylinder, one end of the telescoping guy cable is fixed on the first extending arm, the other end of the telescoping guy cable is fixed on the third extending arm by bypassing a second pulley on the second extending arm, and the other end of the recovery guy cable is fixed on the third extending arm by bypassing a third pulley on the bracket and a fourth pulley on the telescoping cylinder.
Further, the cylinder rod of the telescopic cylinder is fixed on the basic arm, and the cylinder barrel is fixed on an extending arm.
Further, the rope comprises a first rope connector, a rope steel wire rope and a second rope connector which are sequentially connected, the first rope connector is fixed at the tail part of the basic arm, and the second rope connector is fixed at the tail part of the two extension arms.
Further, the telescopic cable comprises a telescopic cable chicken heart ring connector, a telescopic cable steel wire rope and a telescopic cable screw rod which are connected in sequence, the telescopic cable chicken heart ring connector is fixed at the tail of the three extension arms, and the telescopic cable screw rod is fixed at the tail of one extension arm.
Further, the recovery cable comprises a recovery cable steel wire rope and a recovery cable screw rod connected with one end of the recovery cable steel wire rope, the other end of the recovery cable steel wire rope is connected with a fifth pulley on an arm, and the recovery cable screw rod is fixed at the head of the three arms.
Further, the fifth pulley is a half pulley and is fixed at the tail part of an arm. The first pulley is fixed at the telescopic cylinder head. The second pulley is fixed on the inner side of the head part of the two extending arms. The third pulley is fixed at the head of the bracket, and the fourth pulley is fixed at the tail of the cylinder barrel of the telescopic cylinder.
The crane provided by the invention is provided with the single-cylinder synchronous telescopic device.
The beneficial effects are that: compared with the prior art, the invention has the remarkable advantages that: the invention provides a novel telescopic mechanism arrangement mode, a recovery inhaul cable is arranged in an arm body, and a single rope is adopted to drive two sections of arm bodies to be recovered. The problem that the inhaul cable is damaged due to uneven stress and unbalanced stress caused by manufacturing errors of the inhaul cable is solved, and the inhaul cable is convenient to adjust; the tail part of the arm body is not provided with a recovery pulley, so that the length and the size are smaller, the weight is lighter, and the lap joint is larger; the retractable oil cylinder is provided with a retractable pulley structure for entering and exiting the three extending arms, so that the height is narrower, and the weight of the arm body is reduced.
Drawings
FIG. 1 is a schematic structural view of a single-cylinder synchronous telescoping device provided by the invention;
FIG. 2 is a schematic view of the arrangement of the telescopic cable of FIG. 1;
FIG. 3 is a schematic view of the arrangement of the recovery cable of FIG. 1;
in the figure: 1-a telescopic oil cylinder; 2-a bracket; 3-rope rows; 31. a first rope joint; 32-rope-row steel wire ropes; 33-a second rope joint; 4-a telescopic inhaul cable; 41-a telescopic inhaul cable chicken heart ring joint; 42-a telescopic inhaul cable wire rope; 43-a telescopic inhaul cable screw; 5, recovering the inhaul cable; 51-recovering the inhaul cable wire rope; 52-recovering the inhaul cable screw; 6-a pulley; 61-a first pulley; 62-a second pulley; 63-a third pulley; 64-fourth pulley; 65-fifth pulley; 7-a base arm; 8-an arm; 9-two arms; 10-three arms.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
Example 1
The embodiment provides a single-cylinder synchronous telescopic device, which comprises a telescopic cylinder 1, a bracket 2, a rope row 3, a telescopic guy rope 4, a recovery guy rope 5, a pulley 6, a basic arm 7, and a first extending arm 8, a second extending arm 9 and a third extending arm 10 which are sequentially overlapped in the basic arm 7, as shown in figures 1, 2 and 3. The bracket 2 is fixed on the upper part of the telescopic oil cylinder 1, the cylinder rod of the telescopic oil cylinder 1 is fixed on the basic arm 7, and the cylinder barrel is fixed on the extending arm 8. The rope row 3 comprises a first rope row connector 31, a rope row steel wire rope 32 and a second rope row connector 33 which are sequentially connected, the first rope row connector 31 is fixed at the tail part of the basic arm 7, the rope row steel wire rope 32 bypasses a first pulley 61 on the cylinder head of the telescopic cylinder, and the second rope row connector 33 is fixed at the tail part of the two extension arms 9. The telescopic cable 4 comprises a telescopic cable chicken heart ring connector 41, a telescopic cable steel wire rope 42 and a telescopic cable screw 43 which are sequentially connected, the telescopic cable chicken heart ring connector 41 is fixed at the tail of the three extending arms 10, the telescopic cable steel wire rope 42 bypasses a second pulley 62 at the inner side of the head of the two extending arms 9, and the telescopic cable screw 43 is fixed at the tail of the one extending arm 8. The recovery cable 5 comprises a recovery cable wire rope 51 and a recovery cable screw 52 connected with one end of the recovery cable wire rope 51, the recovery cable screw 52 is fixed at the head of the three extending arms 10, the other end of the recovery cable wire rope 51 bypasses a third pulley 63 arranged on the head of the bracket 2 and is connected with a fifth pulley 65 arranged on one extending arm 8 through a fourth pulley 64 arranged at the tail of the cylinder barrel of the telescopic cylinder 1, and the fifth pulley 65 is a half pulley.
The working process of the invention is as follows: the extending process comprises the following steps: when the telescopic oil cylinder 1 stretches out, firstly, a stretching arm 8 is driven to stretch out and stretch out through a first pulley 61, and a rope connector 33 is driven to stretch out and further two stretching arms 9 are driven to stretch out; the second pulley 62 on the two extending arms 9 extends to drive the telescopic guy cable chicken heart ring joint 41 to extend and then the three extending arms 10 extend. The retracting process comprises the following steps: when the telescopic oil cylinder 1 is retracted, firstly, a boom 8 is driven to retract; then the fourth pulley 64 and the fifth pulley 65 retract to drive the recovery inhaul cable screw 52 to retract so as to drive the three arms 10 to retract; further retraction of the three arms 10 drives the telescopic guy wire chicken heart joint 41 to retract, and the second pulley 62 is extruded to retract, so that the two arms 9 are driven to retract.
According to the invention, the four recovery inhaul cables of the traditional product are replaced by the single recovery inhaul cable, so that the influence of manufacturing errors of the inhaul cables is balanced, the inhaul cable is stressed uniformly, and the situation that the single inhaul cable is damaged due to the stress of the single inhaul cable is avoided; the tail part of the arm body is not provided with a recovery pulley and a rope fixing mechanism, the full shrinkage size of the arm body is smaller, the dead weight of the product is reduced, and the lap joint amount is larger after the extension; the retractable oil cylinder is provided with a retractable pulley structure which is not used for feeding and discharging the three extending arms, the height is narrower, the height of the arm body is reduced, and the structure is more compact.
Example two
The present embodiment provides a crane, which is provided with the single-cylinder synchronous telescoping device of the first embodiment, in addition to other basic equipment.
Claims (10)
1. A synchronous telescoping device of single cylinder, its characterized in that: the telescopic rope comprises a telescopic oil cylinder, a support, a rope row, a telescopic rope, a recovery rope, a basic arm, and a first extending arm, a second extending arm and a third extending arm which are sequentially overlapped in the basic arm, wherein the support is fixed on the upper part of the telescopic oil cylinder, one end of the telescopic oil cylinder is fixed on the basic arm, the other end of the telescopic oil cylinder is fixed on the first extending arm, one end of the rope row is fixed on the basic arm, the other end of the rope row is fixed on the second extending arm by bypassing a first pulley on the telescopic oil cylinder, one end of the telescopic rope is fixed on the first extending arm, the other end of the telescopic rope is fixed on the third extending arm by bypassing a second pulley on the second extending arm, one end of the recovery rope is fixed on the first extending arm, and the other end of the recovery rope is fixed on the third extending arm by bypassing a third pulley on the support and a fourth pulley on the telescopic oil cylinder.
2. The single cylinder synchronous telescoping device of claim 1, wherein: the cylinder rod of the telescopic cylinder is fixed on the basic arm, and the cylinder barrel is fixed on the extending arm.
3. The single cylinder synchronous telescoping device of claim 1, wherein: the rope comprises a first rope connector, a rope steel wire rope and a second rope connector which are connected in sequence, wherein the first rope connector is fixed at the tail part of the basic arm, and the second rope connector is fixed at the tail part of the two extension arms.
4. The single cylinder synchronous telescoping device of claim 1, wherein: the telescopic inhaul cable comprises a telescopic inhaul cable chicken heart ring connector, a telescopic inhaul cable steel wire rope and a telescopic inhaul cable screw rod which are connected in sequence, the telescopic inhaul cable chicken heart ring connector is fixed at the tail of a three-extension arm, and the telescopic inhaul cable screw rod is fixed at the tail of an extension arm.
5. The single cylinder synchronous telescoping device of claim 1, wherein: the recovery cable comprises a recovery cable steel wire rope and a recovery cable screw rod connected with one end of the recovery cable steel wire rope, the other end of the recovery cable steel wire rope is connected with a fifth pulley on an arm, and the recovery cable screw rod is fixed at the head of the three arms.
6. The single cylinder synchronous telescoping device of claim 5, wherein: the fifth pulley is a half pulley and is fixed at the tail part of an arm.
7. The single cylinder synchronous telescoping device of claim 1, wherein: the first pulley is fixed at the telescopic cylinder head.
8. The single cylinder synchronous telescoping device of claim 1, wherein: the second pulley is fixed on the inner side of the head part of the two extending arms.
9. The single cylinder synchronous telescoping device of claim 1, wherein: the third pulley is fixed at the head of the bracket, and the fourth pulley is fixed at the tail of the cylinder barrel of the telescopic cylinder.
10. A crane, characterized in that: a single cylinder synchronous telescopic device according to any of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211639013.4A CN116002543A (en) | 2022-12-20 | 2022-12-20 | Single-cylinder synchronous telescoping device and crane |
| PCT/CN2023/128989 WO2024104167A1 (en) | 2022-12-20 | 2023-11-01 | Single-cylinder synchronous telescopic device and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211639013.4A CN116002543A (en) | 2022-12-20 | 2022-12-20 | Single-cylinder synchronous telescoping device and crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116002543A true CN116002543A (en) | 2023-04-25 |
Family
ID=86018602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211639013.4A Pending CN116002543A (en) | 2022-12-20 | 2022-12-20 | Single-cylinder synchronous telescoping device and crane |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116002543A (en) |
| WO (1) | WO2024104167A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024104167A1 (en) * | 2022-12-20 | 2024-05-23 | 徐州徐工随车起重机有限公司 | Single-cylinder synchronous telescopic device and crane |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201825675U (en) * | 2010-08-26 | 2011-05-11 | 徐州徐工随车起重机有限公司 | System for single cylinder and three stay ropes to drive arm bodies of lorry-mounted crane to retract synchronously |
| CN202465131U (en) * | 2011-11-30 | 2012-10-03 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN205346689U (en) * | 2016-01-20 | 2016-06-29 | 湖南中涛起重科技有限公司 | Four sections suspension arm device of single flexible hydro -cylinder and built -in wire rope linkage drive |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19921104A1 (en) * | 1999-05-04 | 2000-11-16 | Mannesmann Ag | Telescopic boom for cranes |
| CN201433061Y (en) * | 2009-07-20 | 2010-03-31 | 三一汽车制造有限公司 | Automobile crane and telescopic arm device thereof |
| CN102381642B (en) * | 2011-11-29 | 2013-04-24 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN105480879B (en) * | 2016-01-20 | 2017-03-22 | 湖南中涛起重科技有限公司 | Telescopic multifunctional intelligent operation arm |
| CN116002543A (en) * | 2022-12-20 | 2023-04-25 | 徐州徐工随车起重机有限公司 | Single-cylinder synchronous telescoping device and crane |
-
2022
- 2022-12-20 CN CN202211639013.4A patent/CN116002543A/en active Pending
-
2023
- 2023-11-01 WO PCT/CN2023/128989 patent/WO2024104167A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201825675U (en) * | 2010-08-26 | 2011-05-11 | 徐州徐工随车起重机有限公司 | System for single cylinder and three stay ropes to drive arm bodies of lorry-mounted crane to retract synchronously |
| CN202465131U (en) * | 2011-11-30 | 2012-10-03 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
| CN205346689U (en) * | 2016-01-20 | 2016-06-29 | 湖南中涛起重科技有限公司 | Four sections suspension arm device of single flexible hydro -cylinder and built -in wire rope linkage drive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024104167A1 (en) * | 2022-12-20 | 2024-05-23 | 徐州徐工随车起重机有限公司 | Single-cylinder synchronous telescopic device and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024104167A1 (en) | 2024-05-23 |
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