CN201980902U - Pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of luffing jib tower crane - Google Patents
Pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of luffing jib tower crane Download PDFInfo
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- CN201980902U CN201980902U CN2010206655983U CN201020665598U CN201980902U CN 201980902 U CN201980902 U CN 201980902U CN 2010206655983 U CN2010206655983 U CN 2010206655983U CN 201020665598 U CN201020665598 U CN 201020665598U CN 201980902 U CN201980902 U CN 201980902U
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- leading sheave
- traction system
- hanging basket
- balancing weight
- rope clamp
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Abstract
A pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of a luffing jib tower crane consists of an uphill traction system, balancing weight movable hanging baskets, slant sliding rails and a downhill traction system. The balancing weight movable hanging baskets are respectively supported on the slant sliding rails arranged on two sides of a balance arm through four travelling wheel sets, the front end of each hanging basket is connected with the downhill traction system, the back side of each hanging basket is connected with the uphill traction system, the other tail ends of the downhill traction system and the uphill traction system are respectively connected with the frond side and the back side of a jib boom support, the balancing weight hanging baskets are drawn to move upslope and downslope along the slant sliding rails when a jib boom rotates so as to form a closed pre-tightening tension reciprocating symmetrical pull system. The pre-tightening tension reciprocating symmetrical pull type balancing weight shifter is easy to manufacture and fast to install, and realizes the purpose that the luffing jib tower crane balancing weight moves safely and reliably.
Description
Technical field
The utility model relates to a kind of pre-tensile force back and forth to pull-type swing arm tower machine counterbalanced weight mobile device, belongs to building handling machinery technical field.
Background technology
The purpose that last time, swivel arm luffing tower machine counterbalanced weight moved is a self-equalizing part because luffing jib and to the unbalanced moment that body of the tower produces, improve the body of the tower structure stress effectively, thereby alleviate the weight of structure.
The move mode of similar swing arm tower machine counterbalanced weight has traction walking, traction oscillating type, connecting rod to push away the pendulum-type three major types, be unidirectional upward slope traction in the existing traction walking scheme, descending relies on deadweight component smooth, owing to making and installation factor when causing the operation blocked portion, can there be bigger potential potential safety hazard.
The utility model content
The purpose of this utility model is to solve the unidirectional traction of the counterbalanced weight that has swivel arm jib tower crane last time now to go up a slope, the potential potential safety hazard of being brought when in a single day walking wheels bearing failure taking place when descending or being subjected to other blocked portions, improve the safety reliability that luffing jib tower machine counterbalanced weight moves, provide a kind of degree of safety fiduciary level higher counterbalanced weight mobile device.
The utility model adopts following technical scheme to realize its purpose:
A kind of pre-tensile force is characterized in that back and forth to pull-type swing arm tower machine counterbalanced weight mobile device the counterbalanced weight mobile device moves Hanging Basket, tilt slide, descending traction system etc. by elevator boom rack, upward slope traction system, counterbalanced weight and forms.
Described elevator boom rack is to be installed on the revolution upper mounting plate of swing arm tower machine, thereby carries out the truss structure rod member of pitching luffing by the luffing hoisting mechanism by rope traction, rotates and realize the luffing action around root hinge O under the driving of luffing steel rope.
Described upward slope traction system by be anchored on elevator boom rack near bearing pin, the open auger of root top boom buckle, wire rope grip, upward slope haulage cable, leading sheave form, the starting point of system is that open auger is buckled on the fixed pin shaft that an end hook hangs over elevator boom rack root top boom, its other end and upward slope haulage cable are affixed by rope clamp, the leading sheave that is fixed in elevator boom rack top boom front end, Shears, equilibrium arm afterbody is walked and successively walked around to the other end of haulage cable, at last be supported on tilt slide on counterbalanced weight Hanging Basket one side be connected.
Described counterbalanced weight moves Hanging Basket to be made up of load-bearing basket, walking wheels, and the weight of all counterweight blocks and load-bearing Hanging Basket all is supported on the tilt slide by the walking wheels.When elevator boom rack when root hinge O rotate to do increases the motion of work range, the upward slope haulage cable is because crane arm is done the clockwise direction rotation and the haulage cable motion, thereby drive the counterbalanced weight Hanging Basket and on inclined plane, make upslope motion, away from the body of the tower center of gyration, when elevator boom rack is done the anticlockwise direction motion, the road wheel of counterbalanced weight Hanging Basket can be voluntarily to lower slider, near the body of the tower center of gyration under the effect of gravity.
Described descending traction system is made up of bearing pin, tension force preloading spring, wire rope grip, servo-actuated fixture block, descending haulage cable, baffle plate, leading sheave.When counterbalanced weight Hanging Basket descending moves, the descending haulage cable is in a kind of tensioning state all the time under the effect of spring tension, just in case Hanging Basket runs into the blocked portion phenomenon in descending process, the descending haulage cable will play certain auxiliary pulling function, make it reach smooth purpose along operation, that avoids being brought because of the upward slope haulage cable is lax slides the impact that is brought suddenly.Extension spring stressed and surpass certain elongation after, active fastening block participation work, this moment, the descending haulage cable will force to draw the Hanging Basket motion.
Principle of work of the present utility model is:
The rotation that the traction power source of upward slope traction system and descending traction system depends on elevator boom rack provides, the rotation of ordering with tower machine elevator boom rack O is a starting point, the hauling rope of upward slope traction system is anchored on the top boom of elevator boom rack, is anchored on movably counterbalanced weight Hanging Basket one side after walking around three leading sheaves of elevator boom rack, equilibrium arm Shears and equilibrium arm afterbody; The descending haulage cable is by being connected on the lower boom of elevator boom rack with the pretension tension spring, wear and be connected with the opposite side of counterbalanced weight Hanging Basket after pile warp is crossed inferoanterior three leading sheaves of jib, form a pre-tensile force back and forth to pull-type stressed system, safety and reliability when counterbalanced weight is moved.
Move scheme with existing similar traction walking counterbalanced weight and compare, the beneficial effects of the utility model are:
Solve when in a single day the counterbalanced weight Hanging Basket runs into blocked portion in the traveling process under inclined plane and can freely move suitablely, eliminate the potential risk of impact suddenly that glides, further improve the degree of safety and the fiduciary level of tower machine;
Can be used in swing arm tower machine rope traction oscillating type counterbalanced weight and move scheme.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that steel rope system is worn around scheme drawing.
Among the figure:
1-bearing pin 2-open auger is buckled the 3-rope clamp
4-upward slope haulage cable 5-leading sheave 6-leading sheave
7-equilibrium arm 8-walking wheels 9-leading sheave
10-rope clamp 11-load-bearing basket 12-rope clamp
13-slide rail 14-bearing pin 15-pretension tension spring
16-leading sheave 17-transition segment frame 18-turns round lower supporting frame
19-revolution upper mounting plate 20-descending haulage cable 21-leading sheave
22-rope clamp 23-servo-actuated fixture block 24-baffle plate
25-leading sheave 26-elevator boom rack
The specific embodiment:
As shown in drawings, the utility model comprises that upward slope traction system, counterbalanced weight move Hanging Basket, tilt slide, descending traction system.The upward slope traction system by bearing pin 1, open auger buckle 2, rope clamp 3, leading sheave 5, upward slope haulage cable 4, leading sheave 6, leading sheave 9, rope clamp 10 form, the counterbalanced weight Hanging Basket is made up of load-bearing basket 11, walking wheels 8, and described descending traction system is made up of bearing pin 14, pretension tension spring 15, rope clamp 22, servo-actuated fixture block 23, baffle plate 24, leading sheave 25, leading sheave 21, descending haulage cable 20, leading sheave 16, rope clamp 12.
The descending haulage cable 20 of front haulage system remains certain tensile force under the effect of pretension tension spring 15, when stretching travel reaches certain degree, servo-actuated fixture block 23 fixed thereon will be subjected to baffle plate 24 to be stoped and restraining spring continuation elongation, and descending haulage cable 20 enters the state of forcing towing counterbalanced weight Hanging Basket 11.
Claims (1)
1. a pre-tensile force is back and forth to pull-type swing arm tower machine counterbalanced weight mobile device, comprise the upward slope traction system, counterbalanced weight moves Hanging Basket, tilt slide, the descending traction system, it is characterized in that described upward slope traction system is by bearing pin (1), open auger is buckled (2), rope clamp (3), leading sheave (5), upward slope haulage cable (4), leading sheave (6), leading sheave (9), rope clamp (10) is formed, described counterbalanced weight Hanging Basket is by load-bearing basket (11), walking wheels (8) are formed, described descending traction system is by bearing pin (14), pretension tension spring (15), rope clamp (22), servo-actuated fixture block (23), baffle plate (24), leading sheave (25), leading sheave (21), descending haulage cable (20), leading sheave (16), rope clamp (12) is formed, elevator boom rack (26) rotates around root hinge O point under the traction of tower machine luffing mechanism, the end hook that open auger is buckled (2) is hung on the bearing pin (1) that is fixed on elevator boom rack top boom root, the other end is connected with upward slope haulage cable (4) hook by rope clamp (3), the other end of upward slope haulage cable (4) is walked around and is fixed on the forward leading sheave of elevator boom rack top boom (5), leading sheave on the Shears (6), keep straight on and arrive counterbalanced weight Hanging Basket (11) in leading sheave (9) back of equilibrium arm (7) afterbody, and be connected by rope clamp (10) and Hanging Basket a side by equilibrium arm (7) afterbody, counterbalanced weight Hanging Basket (11) is supported on the tilting slide rail (13) by four walking wheels (8), one end of the haulage cable of descending traction system (20) is fixed on the side of counterbalanced weight Hanging Basket (11) near the body of the tower direction by rope clamp (12), wear pile warp respectively and cross the leading sheave (16) that is fixed on the equilibrium arm (7), be fixed on the leading sheave (21) on the revolution upper mounting plate (19), after being fixed on the forward leading sheave (25) in elevator boom rack (26) root below, pass from the middle aperture of baffle plate (24) that is fixed on elevator boom rack (26) lower boom, from the about fastening servo-actuated fixture block in 200mm place (23) of baffle plate (24), implement to be connected with an end of pretension tension spring (15) by rope clamp (22) then, the other end of pretension tension spring (15) is hooked on the bearing pin (14) that is installed on elevator boom rack (26) the root jib lower boom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206655983U CN201980902U (en) | 2010-12-17 | 2010-12-17 | Pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of luffing jib tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206655983U CN201980902U (en) | 2010-12-17 | 2010-12-17 | Pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of luffing jib tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201980902U true CN201980902U (en) | 2011-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206655983U Expired - Lifetime CN201980902U (en) | 2010-12-17 | 2010-12-17 | Pre-tightening tension reciprocating symmetrical pull type balancing weight shifter of luffing jib tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201980902U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324168A (en) * | 2017-08-23 | 2017-11-07 | 中联重科股份有限公司 | Anti-collision system of elevator and elevator |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
| CN111960300A (en) * | 2020-08-26 | 2020-11-20 | 三一汽车起重机械有限公司 | Cantilever crane structure and hoisting equipment |
-
2010
- 2010-12-17 CN CN2010206655983U patent/CN201980902U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107324168A (en) * | 2017-08-23 | 2017-11-07 | 中联重科股份有限公司 | Anti-collision system of elevator and elevator |
| CN111847279A (en) * | 2020-07-29 | 2020-10-30 | 抚顺永茂建筑机械有限公司 | Movable arm tower crane steel wire rope driving type movable counterweight device |
| CN111960300A (en) * | 2020-08-26 | 2020-11-20 | 三一汽车起重机械有限公司 | Cantilever crane structure and hoisting equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |