CN201990408U - Double-cylinder stay cable boom body telescopic device of large tonnage straight boom lorry mounted crane - Google Patents
Double-cylinder stay cable boom body telescopic device of large tonnage straight boom lorry mounted crane Download PDFInfo
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- CN201990408U CN201990408U CN2011200502601U CN201120050260U CN201990408U CN 201990408 U CN201990408 U CN 201990408U CN 2011200502601 U CN2011200502601 U CN 2011200502601U CN 201120050260 U CN201120050260 U CN 201120050260U CN 201990408 U CN201990408 U CN 201990408U
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Abstract
The utility model provides a double-cylinder stay cable boom body telescopic device of a large tonnage straight boom lorry mounted crane, which mainly consists of two telescopic cylinders, three sets of stay cables, a base boom, five sections of telescopic booms, a rope rank and a movable pulley, wherein the head of a piston rod of the first telescopic cylinder is fixed on the base boom, the cylinder body of the first telescopic cylinder is fixed on the boom tail of the first section of telescopic boom, the head of a piston rod of the second telescopic cylinder is fixed on the first section of telescopic boom, the cylinder body of the second telescopic cylinder is fixed on the boom tail of the second section of telescopic boom, the rope rank is arranged between the first telescopic cylinder and the second telescopic cylinder, boom tail pulleys are respectively arranged in the second section of telescopic boom, the third section of telescopic boom and the fourth section of telescopic boom, boom head pulleys are respectively arranged on boom heads of the third section of telescopic boom and the fourth section of telescopic boom, extending stay cables of which the two ends are fixed on the boom heads of the telescopic booms are wound on the boom head pulleys, and boom body rope guide blocks are arranged on the boom tails of the fourth section of telescopic boom and the fifth section of telescopic boom. The five sections of telescopic booms extend and retract with the built-in telescopic cylinders, the first section of telescopic boom extends first or retracts finally, and the other boom bodies can synchronously extend and retract. The telescopic speed and the operation efficiency of the boom bodies can be improved.
Description
Technical field
The utility model relates to a kind of straight-arm lorry-mounted crane retractor device, especially a kind of many parbuckles of large-tonnage straight-arm lorry-mounted crane twin-tub arm body retractor device that is applicable to.
Background technology
Present lorry-mounted crane arm body stretching structure mainly contains three kinds: first kind is that several external or built-in telescopic oil cylinders are positioned over arm external body or inside, promotes the telescopic boom body motion; Second kind is single built-in telescopic oil cylinder and rope row drag-line mechanism, drives some arm body synchronization telescopes; The third is to adopt multi-stage oil cylinder drive arm body flexible in proper order.First kind is more suitable in folding arm-type lorry-mounted crane, and limits the straight arm type lorry-mounted crane that is not suitable for more than the large-tonnage three joint telescopic booms because of reasons such as installing space, arm body length and own wts.Second kind of structure is because of adopting single built-in telescopic oil cylinder, the single oil cylinder body must rely on the above rope row drag-line mechanism of three covers to drive when flexible, band carries when stretching, steel rope is stressed abominable, this structure only is applicable to the following arm body telescoping mechanism of five joint arm bodies, is not suitable for single oil cylinder body (six joint arm bodies and six save more than the arm bodies) telescoping mechanism.The third structure is because of adopting the form of multi-stage oil cylinder, manufacturing cost height at first, will inevitably strengthen arm body amount of deflection during next arm body lift heavy, cause the Large Deflection Deformation of multi-stage oil cylinder piston rod simultaneously, be unfavorable for the work of multi-stage oil cylinder, this structure only is applicable to that the galianconism body of four joint telescopic booms following (comprising three joint arm bodies) is flexible.
Summary of the invention
Technical matters: the purpose of this utility model is the weak point that will overcome in the prior art, provides a kind of compact conformation, stability is strong, cost is low, the twin-tub drag-line telescopic boom of flexible effective large-tonnage straight-arm lorry-mounted crane.
Technical scheme: large-tonnage straight-arm lorry-mounted crane twin-tub drag-line arm body retractor device of the present utility model, comprise multi-stage telescopic arms, rope row, telescopic oil cylinder, described multi-stage telescopic arms comprises basic arm, nestable five joint telescopic booms in basic arm, vertically be furnished with first telescopic oil cylinder and second telescopic oil cylinder in the five joint telescopic booms, the piston rod head of first telescopic oil cylinder is fixed on the basic arm through the first telescopic oil cylinder piston rod bearing pin, and the cylinder body of first telescopic oil cylinder is fixed on the arm tail of first segment telescopic boom through the first telescopic oil cylinder bearing pin; The piston rod head of second telescopic oil cylinder is fixed on the arm tail of first segment telescopic boom through the second telescopic oil cylinder piston rod bearing pin, the cylinder body of second telescopic oil cylinder is fixed on the arm tail of the second joint telescopic boom through the second telescopic oil cylinder bearing pin, and the afterbody of second telescopic oil cylinder is provided with a plurality of ropes row pulleys of parallel arranged through support; Be provided with the rope row that many steel ropes by parallel arranged constitute between first telescopic oil cylinder and second telescopic oil cylinder, rope row's a end is fixed on the basic arm through I rope bearing pin, behind the rope row pulley of rope row's the other end pile warp second telescopic oil cylinder afterbody, be fixed on the arm tail of the 3rd joint telescopic boom through II rope bearing pin; Second joint, the 3rd joint, be respectively equipped with second joint in the 4th joint telescopic boom, the 3rd joint, the 4th joint telescopic boom arm stern sheave, second joint, the 3rd joint, be wound with an end on the 4th joint telescopic boom arm stern sheave and be separately fixed at first segment telescopic boom end, the 3rd joint of the second joint telescopic boom end and the 3rd joint telescopic boom end, the 4th joint, the 5th joint telescopic boom retraction drag-line, the other end that is wrapped in the 3rd joint telescopic boom retraction drag-line on the second joint telescopic boom arm stern sheave is fixed on the arm tail of the 3rd joint telescopic boom, the other end that is wrapped in the 4th telescopic boom retraction drag-line on the 3rd joint telescopic boom arm stern sheave is fixed on the arm tail of the 4th joint telescopic boom, and the other end that is wrapped in the 5th joint telescopic boom retraction drag-line on the 4th joint telescopic boom arm stern sheave is fixed on the arm tail of the 5th joint telescopic boom; Be respectively equipped with the 3rd joint, the 4th joint telescopic boom arm head pulley on the arm head of the 3rd joint, the 4th joint telescopic boom, be wound with two ends on the 3rd joint telescopic boom arm head pulley and stretch out drag-line by the 4th joint telescopic boom that screw rod is fixed on the second joint telescopic boom arm head, the arm tail top that the 4th joint telescopic boom stretches out guy cable rounds the 4th joint telescopic boom is provided with the 4th joint arm body conductor rope piece that it is turned back along former direction; Be wound with two ends on the 4th joint telescopic boom arm head pulley and stretch out drag-line by the 5th joint telescopic boom that screw rod is fixed in the 3rd joint telescopic boom arm head top, the arm tail top that the 5th joint telescopic boom stretches out guy cable rounds the 5th joint telescopic boom is provided with the 5th joint arm body conductor rope piece that it is turned back along former direction.
The afterbody of described second telescopic oil cylinder is provided with through the bearing pin cunning and is contained in support pulley on the support; The radical of described rope row's many steel ropes is identical with the number of rope row pulley.
Beneficial effect: owing to adopted technique scheme, whole arm body retractor device adopts two built-in telescopic oil cylinders, rope row and three parbuckles, this arm body retractor device is based on movable pulley, the movable pulley system that flexible element " steel rope " and built-in telescopic oil cylinder are formed, the two oil cylinder band three parbuckle arm body retractor devices of lorry-mounted crane have changed the flexible operating feature that can only stretch in proper order of arm body in the past, make five to save telescopic booms stretching along with built-in telescopic oil cylinder, after the first segment telescopic boom stretches out back or withdrawal earlier, can guarantee second, three, four, five joint arm body synchronization telescopes, thereby improve arm body stretching speed greatly, improve the lift heavy operating efficiency.Its compact conformation, stability is strong, the operating efficiency height, result of use is good, has practicality widely.
Description of drawings
Fig. 1 is the twin-tub drag-line telescopic arm structure figure of large-tonnage straight-arm lorry-mounted crane of the present utility model.
Among the figure: the 1-basic arm; 2-first segment telescopic boom; The 3-second joint telescopic boom; The 4-second joint telescopic boom arm stern sheave; 5-the 3rd joint telescopic boom; 6-the 3rd joint telescopic boom arm stern sheave; 7-the 4th joint arm body conductor rope piece; 8-the 4th joint telescopic boom arm stern sheave; 9-the 4th joint telescopic boom; 10-the 5th joint arm body conductor rope piece; 11-the 5th joint telescopic boom; 12-the 3rd joint telescopic boom retraction drag-line; 13-the 4th joint telescopic boom retraction drag-line; 14-the 4th joint telescopic boom stretches out drag-line; 15-the 3rd joint telescopic boom arm head pulley; 16-the 5th joint telescopic boom stretches out drag-line; 17-the 4th joint telescopic boom arm head pulley; The 18-first telescopic oil cylinder piston rod bearing pin; 19-I rope bearing pin; The 20-first telescopic oil cylinder bearing pin; The 21-second telescopic oil cylinder piston rod bearing pin; The 22-second telescopic oil cylinder bearing pin; 23-first telescopic oil cylinder; 24-II rope bearing pin; 25-second telescopic oil cylinder; The 26-row that restricts; The 27-support; 28-rope row pulley; 29-support pulley; 30-the 5th joint telescopic boom retraction drag-line.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The large-tonnage straight-arm lorry-mounted crane twin-tub drag-line arm body retractor device of utility model, mainly constitute by multi-stage telescopic arms, rope row, movable pulley, telescopic oil cylinder, wherein multi-stage telescopic arms comprises basic arm 1, nestable five joint telescopic booms in basic arm 1, be provided with first telescopic oil cylinder 23 and second telescopic oil cylinder 25 side by side in the five joint telescopic booms, the piston rod head of first telescopic oil cylinder 23 is fixed on the basic arm 1 through the first telescopic oil cylinder axle 18, and the cylinder body of first telescopic oil cylinder 23 is fixed on the arm tail of first segment telescopic boom 2 through the first telescopic oil cylinder bearing pin 20; The piston rod head of second telescopic oil cylinder 25 is fixed on the arm tail of first segment telescopic boom 2 through the second telescopic oil cylinder axle 21, the cylinder body of second telescopic oil cylinder 25 is fixed on the arm tail of the second joint telescopic boom 3 through the second telescopic oil cylinder bearing pin 22, and the afterbody of second telescopic oil cylinder 25 is provided with a plurality of ropes row pulleys 28 of parallel arranged through support 27; Be provided with rope row 26 between first telescopic oil cylinder 23 and second telescopic oil cylinder 25, an end junction of rope row 26 is fixed in the arm tail of basic arm 1 by rope bearing pin 19, its steel rope group is walked around the rope row pulley 28 on the support 27, and other end joint is fixed in the arm tail of the 3rd joint telescopic boom 5 by II rope bearing pin 24; The afterbody of second telescopic oil cylinder 25 is provided with support pulley 29.Be respectively equipped with second joint, the 3rd joint, the 4th joint telescopic boom arm stern sheave 4,6,8 in second joint, the 3rd joint, the 4th joint telescopic boom 3,5,9, the 3rd joint telescopic boom retraction drag-line 12 1 end screw rods are fixed in first segment telescopic boom 2 arm head tops, and steel rope is walked around the second joint telescopic boom arm tail small sheave, 4 its other end joints of back and is fixed on the arm tail of the 3rd joint telescopic boom 5; The 4th joint telescopic boom retraction drag-line 13 1 end screw rods are fixed in the second joint telescopic boom, 3 arm heads, and steel rope is walked around the 3rd joint telescopic boom arm stern sheave 6 back other end joints and is fixed on the arm tail of the 4th joint telescopic boom 9; The 5th joint telescopic boom retraction drag-line 30 1 end screw rods are fixed in the 3rd joint telescopic boom 5 arm head tops, and steel rope is walked around and is fixed in the 4th joint telescopic boom arm stern sheave 8, and other end joint is fixed on the arm tail of the 5th joint telescopic boom 11; Be respectively equipped with the 3rd joint, the 4th joint telescopic boom arm head pulley 15,17 on the arm head of the 3rd joint, the 4th joint telescopic boom 5,9, being wound with the two ends screw rod on the 3rd joint telescopic boom arm head pulley 15 is fixed in the 4th joint telescopic boom on the second joint telescopic boom, 3 arm heads and stretches out drag-line 14, the four joint telescopic booms and stretch out drag-line 14 and walk around the arm tail top of the 4th joint telescopic boom 9 and be provided with the 4th joint arm body conductor rope piece 7; Be wound with the 5th joint telescopic boom that the two ends screw rod is fixed in the 3rd joint telescopic boom 5 arm head tops on the 4th joint telescopic boom arm head pulley 17 and stretch out drag-line 16, the 5th joint telescopic boom stretches out drag-line 16 and walks around the arm tail top of the 5th joint telescopic boom 11 and be provided with the 5th joint arm body conductor rope piece 10, the 4th joint telescopic boom stretches out the arm head that drag-line 14 two ends screw rods are fixed in the second joint telescopic boom 3, and steel rope is walked around the 4th joint arm body conductor rope piece 7 backs, arm tail top of the 4th joint telescopic boom 9 and turned back along former direction; The 5th joint telescopic boom stretches out the arm head top that drag-line 16 two ends screw rods are fixed in the 3rd joint telescopic boom 5, and steel rope is walked around the 5th joint arm body conductor rope piece 10 backs, arm tail top of the 5th joint telescopic boom 11 and turned back along former direction.
Principle of work and working process:
Stretch: the arm tail that is fixed in basic arm 1 because of first telescopic oil cylinder, 23 piston rod heads by the first telescopic oil cylinder piston rod bearing pin 18, its cylinder barrel is fixed in the arm tail of first segment telescopic boom 2, when to first telescopic oil cylinder, 23 big chamber fuel feeding, its cylinder barrel is overhanging, and first segment telescopic boom 2 stretches out; The piston rod head of second telescopic oil cylinder 25 is fixed in the arm tail of first segment telescopic boom 2 by the second telescopic oil cylinder piston rod bearing pin 21, its cylinder barrel is fixed in the arm tail of the second joint telescopic boom 3, when to the big chamber of second telescopic oil cylinder 25 fuel feeding, its cylinder barrel is overhanging, when driving the second joint telescopic boom 3 and stretch out, be fixed on rope row pulley 28 on the support 27 of second telescopic oil cylinder, 25 cylinder tails and promote rope row 26 and drive the 3rd joint telescopic boom 5 and stretch out; And then the 3rd joint telescopic boom arm head pulley 15 drives the 4th joint telescopic boom and stretches out drag-line 14 the 4th joint telescopic boom 9 is pulled out; The 5th joint telescopic boom of the 4th joint telescopic boom arm head pulley 17 pullings subsequently stretches out drag-line 16, thereby extracts the 5th joint telescopic boom 11.
Arm motion: when second telescopic oil cylinder, 25 loculus fuel feeding, cylinder barrel retraction, 3 withdrawals of the second joint telescopic boom; Simultaneously, the second joint telescopic boom arm stern sheave 4 drags the 3rd joint telescopic boom retraction drag-line 12 and reclaims, and the 3rd joint telescopic boom 5 is dragged back; At this moment, the 3rd joint telescopic boom arm stern sheave 6 drags the 4th joint telescopic boom retraction drag-line 13 the 4th joint telescopic boom 9 is dragged back; The 4th joint telescopic boom arm stern sheave 8 drags the 5th joint telescopic boom retraction drag-line 30 the 5th joint telescopic boom 11 is dragged back then; At last, first telescopic oil cylinder 23 is dragged back first segment telescopic boom 2.
Claims (3)
1. large-tonnage straight-arm lorry-mounted crane twin-tub drag-line arm body retractor device, comprise multi-stage telescopic arms, rope row, telescopic oil cylinder, it is characterized in that: described multi-stage telescopic arms comprises basic arm (1), nestable five joint telescopic booms in basic arm (1), vertically be furnished with first telescopic oil cylinder (23) and second telescopic oil cylinder (25) in the five joint telescopic booms, the piston rod head of first telescopic oil cylinder (23) is fixed on the basic arm (1) through the first telescopic oil cylinder piston rod bearing pin (18), and the cylinder body of first telescopic oil cylinder (23) is fixed on the arm tail of first segment telescopic boom (2) through the first telescopic oil cylinder bearing pin (20); The piston rod head of second telescopic oil cylinder (25) is fixed on the arm tail of first segment telescopic boom (2) through the second telescopic oil cylinder piston rod bearing pin (21), the cylinder body of second telescopic oil cylinder (25) is fixed on the arm tail of the second joint telescopic boom (3) through the second telescopic oil cylinder bearing pin (22), and the afterbody of second telescopic oil cylinder (25) is provided with a plurality of ropes row pulleys (28) of parallel arranged through support (27); Be provided with the rope row (26) that many steel ropes by parallel arranged constitute between first telescopic oil cylinder (23) and second telescopic oil cylinder (25), rope row's (26) a end is fixed on the basic arm (1) through I rope bearing pin (19), behind rope row's pulley (28) of rope row's (26) the other end pile warp second telescopic oil cylinder afterbody, be fixed on the arm tail of the 3rd joint telescopic boom (5) through II rope bearing pin (24); Second joint, the 3rd joint, the 4th joint telescopic boom (3,5,9) be respectively equipped with second joint in, the 3rd joint, the 4th joint telescopic boom arm stern sheave (4,6,8), second joint, the 3rd joint, the 4th joint telescopic boom arm stern sheave (4,6,8) be wound with an end on and be separately fixed at first segment telescopic boom (2) end, the 3rd joint of second joint telescopic boom (3) end and the 3rd joint telescopic boom (5) end, the 4th joint, the 5th joint telescopic boom retraction drag-line (12,13,30), the other end that is wrapped in the 3rd joint telescopic boom retraction drag-line (12) on the second joint telescopic boom arm stern sheave (4) is fixed on the arm tail of the 3rd joint telescopic boom (5), the other end that is wrapped in the 4th telescopic boom retraction drag-line (13) on the 3rd joint telescopic boom arm stern sheave (6) is fixed on the arm tail of the 4th joint telescopic boom (9), and the other end that is wrapped in the 5th joint telescopic boom retraction drag-line (30) on the 4th joint telescopic boom arm stern sheave (8) is fixed on the arm tail of the 5th joint telescopic boom (11); Be respectively equipped with the 3rd joint, the 4th joint telescopic boom arm head pulley (15,17) on the arm head of the 3rd joint, the 4th joint telescopic boom (5,9), be wound with two ends on the 3rd joint telescopic boom arm head pulley (15) and stretch out drag-line (14) by the 4th joint telescopic boom that screw rod is fixed on second joint telescopic boom (3) arm head, the 4th joint telescopic boom stretches out drag-line (14) and walks around the arm tail top of the 4th joint telescopic boom (9) and be provided with the 4th joint arm body conductor rope piece (7) that it is turned back along former direction; Be wound with two ends on the 4th joint telescopic boom arm head pulley (17) and stretch out drag-line (16) by the 5th joint telescopic boom that screw rod is fixed in the 3rd joint telescopic boom (5) arm head top, the 5th joint telescopic boom stretches out drag-line (16) and walks around the arm tail top of the 5th joint telescopic boom (11) and be provided with the 5th joint arm body conductor rope piece (10) that it is turned back along former direction.
2. large-tonnage straight-arm lorry-mounted crane twin-tub drag-line arm body retractor device according to claim 1 is characterized in that: the afterbody of described second telescopic oil cylinder (25) is provided with through the bearing pin cunning and is contained in support pulley (29) on the support (27).
3. large-tonnage straight-arm lorry-mounted crane twin-tub drag-line arm body retractor device according to claim 1 is characterized in that: the radical of described rope row's (26) many steel ropes is identical with the number of rope row's pulley (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200502601U CN201990408U (en) | 2011-03-01 | 2011-03-01 | Double-cylinder stay cable boom body telescopic device of large tonnage straight boom lorry mounted crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200502601U CN201990408U (en) | 2011-03-01 | 2011-03-01 | Double-cylinder stay cable boom body telescopic device of large tonnage straight boom lorry mounted crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990408U true CN201990408U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200502601U Expired - Lifetime CN201990408U (en) | 2011-03-01 | 2011-03-01 | Double-cylinder stay cable boom body telescopic device of large tonnage straight boom lorry mounted crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201990408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086003A (en) * | 2011-03-01 | 2011-06-08 | 徐州徐工随车起重机有限公司 | Double-cylinder cable arm expansion device of large-tonnage straight arm lorry-mounted crane |
| CN103253601A (en) * | 2012-02-21 | 2013-08-21 | 埃普斯隆起重机有限公司 | Crane |
-
2011
- 2011-03-01 CN CN2011200502601U patent/CN201990408U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086003A (en) * | 2011-03-01 | 2011-06-08 | 徐州徐工随车起重机有限公司 | Double-cylinder cable arm expansion device of large-tonnage straight arm lorry-mounted crane |
| CN102086003B (en) * | 2011-03-01 | 2013-01-02 | 徐州徐工随车起重机有限公司 | Double-cylinder cable arm expansion device of large-tonnage straight arm lorry-mounted crane |
| CN103253601A (en) * | 2012-02-21 | 2013-08-21 | 埃普斯隆起重机有限公司 | Crane |
| CN103253601B (en) * | 2012-02-21 | 2017-10-17 | 埃普斯隆起重机有限公司 | Crane |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110928 Effective date of abandoning: 20130227 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110928 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |