CN108946528B - Trolley rope breakage protection device for tower crane - Google Patents
Trolley rope breakage protection device for tower crane Download PDFInfo
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- CN108946528B CN108946528B CN201810872529.0A CN201810872529A CN108946528B CN 108946528 B CN108946528 B CN 108946528B CN 201810872529 A CN201810872529 A CN 201810872529A CN 108946528 B CN108946528 B CN 108946528B
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- rope
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- tower crane
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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
- B66C23/88—Safety gear
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- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a trolley rope breakage protection device for a tower crane, which comprises a top plate, a buffer spring, a second rope and a friction ring, wherein the upper side of the top plate is fixedly connected with a pulley block, the inner side of the pulley block is connected with a first rope in a sliding manner, a connecting plate is embedded in a right side port of the first rope, a connecting rod is fixedly connected to the bottom end of the connecting plate, the lower side of the connecting rod is fixedly connected with the middle part of the top end of a friction speed reducing plate, positioning rods are installed at two side port parts of the buffer spring, a rope rotating disc is hinged to the right side of the second rope, and the middle part of the rope rotating disc is rotatably connected with the inner side of a turntable positioning plate. According to the invention, the two second ropes are arranged to prevent the object from being separated from the dragging condition after the ropes are broken, when the friction ring is damaged, the friction speed reducing plate naturally falls down, and the first rotating wheel and the second rotating wheel are simultaneously subjected to friction action, so that the speed reducing protection work can be efficiently carried out.
Description
Technical Field
The invention relates to the technical field of crane equipment, in particular to a trolley rope breakage protection device for a tower crane.
Background
A tower crane, also called tower crane, is originated from Western Europe, a rotating crane with a movable arm arranged at the upper part of a tower body with high rise, large working space, mainly used for vertical and horizontal conveying of materials and installation of building components in building construction, and comprises a metal structure, a working mechanism and an electrical system, wherein the metal structure comprises the tower body, the movable arm, a base and the like, the working mechanism comprises four parts of lifting, amplitude changing, rotation and walking, the electrical system comprises a motor, a controller, a power distribution cabinet, a connecting circuit, a signal and lighting device and the like, a trolley rope breakage protection device is an important component of the crane and can carry out speed reduction protection work on a hoisted object after rope breakage, the traditional trolley rope breakage protection device is mainly protected by a speed limiter, but the traditional speed limiter cannot visually observe the damage degree, so that the use safety hazard of the device is increased, easily cause big incident, and do not be provided with multiple shock attenuation buffer structure for the device easily bumps the damage to the device when carrying out the speed reduction protection, and the part that damages after the speed reduction protection takes place simultaneously is dismantled and the installation work is very inconvenient, consequently not practical.
Disclosure of Invention
The invention aims to provide a trolley rope breakage protection device for a tower crane, which aims to solve the problems that the traditional speed limiter provided in the background technology cannot visually observe the damage degree, so that the use potential safety hazard of the device is increased, a multiple damping buffer structure is not arranged, and the damaged parts are inconvenient to disassemble and install after speed reduction protection.
In order to achieve the purpose, the invention provides the following technical scheme: a trolley rope breakage protection device for a tower crane comprises a top plate, a buffer spring, a second rope and a friction ring, wherein an upper side of the top plate is fixedly connected with an assembly pulley, the inner side of the assembly pulley is slidably connected with a first rope, a right side port of the first rope is inlaid with a connecting plate, the bottom end of the connecting plate is fixedly connected with a connecting rod, the lower side of the connecting rod is fixedly connected with the middle part of the top end of a friction speed reducing plate, positioning rods are mounted at two side port parts of the buffer spring, the outer sides of the positioning rods are fixedly connected with the top plate, the right side of the second rope is hinged with a rope rotating disc, the middle part of the rope rotating disc is rotatably connected with the inner side of a turntable positioning plate, a first rotating wheel is fixedly connected with the outer side of the rope rotating disc, rollers are arranged on the lower side of the first rotating wheel, the right side of the first rotating wheel is in meshed connection with the second, and the top end of the friction ring is fixedly connected with a first rope.
Preferably, the bottom of connective bar is equipped with the screw thread notch, and the connective bar passes through the screw thread notch and the top of friction speed reduction board is swivelling joint formula structure.
Preferably, the bottom end of the friction speed reducing plate is provided with a groove-shaped brake pad, and the inner diameter width of the groove-shaped brake pad is larger than the outer side widths of the first rotating wheel and the second rotating wheel.
Preferably, the carousel locating plate includes fixed block, damping spring, baffle and fixed rod, fixed fast right side rigid coupling has damping spring, and damping spring's right side installs the baffle, and the right side middle part of baffle is provided with the fixed rod.
Preferably, the right side of the baffle is provided with a circular groove, and the inner diameter of the circular groove is the same as the outer diameter of the two ends of the fixing rod.
Preferably, the friction ring is of a hollow structure, and the inner diameter of the friction ring is the same as the outer diameter of the second rope.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the two second ropes are arranged, so that an object is prevented from being separated from a dragging condition after the ropes are broken, when the friction ring is damaged, the friction speed reducing plate naturally falls down and simultaneously rubs the first rotating wheel and the second rotating wheel, the speed reducing protection work can be efficiently carried out, the integrity of the device can be directly observed, and the friction protection work can be naturally carried out when the device is damaged, so that the problem which is difficult to find when the traditional speed limiter is damaged is prevented, and the use safety of the device is better.
(2) According to the invention, the damping spring and the buffer spring are arranged, so that the first rotating wheel, the second rotating wheel and the connecting plate can be subjected to speed reduction and buffer work respectively, and the collision damage during sudden speed reduction protection can be reduced.
(3) According to the invention, by arranging the detachable baffle and the friction speed reducing plate, after the speed reducing protection is finished, a new baffle can be inserted into the turntable positioning plate, and then the new friction speed reducing plate can be rotated and replaced for reuse, so that the use is very convenient and fast, and the operation is simpler.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1 according to the present invention;
fig. 3 is a schematic structural view of the turntable positioning plate of the present invention.
In the figure: 1. a top plate; 2. a pulley block; 3. a first rope; 4. a connector tile; 5. a connecting rod; 6. a friction speed reduction plate; 7. a buffer spring; 8. positioning a rod; 9. a second rope; 10. a rope turning disc; 11. a turntable positioning plate; 111. a fixed block 112, a damping spring 113, a baffle plate 114, a fixed rod 12 and a first rotating wheel; 13. a roller; 14. a second runner; 15. and (6) a friction ring.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention is shown:
a trolley rope breakage protection device for a tower crane comprises a top plate 1, a buffer spring 7, a second rope 9 and a friction ring 15, wherein the upper side of the top plate 1 is fixedly connected with a pulley block 2, the inner side of the pulley block 2 is slidably connected with a first rope 3, a connecting plate 4 is embedded in a right side port of the first rope 3, a connecting rod 5 is fixedly connected to the bottom end of the connecting plate 4, the lower side of the connecting rod 5 is fixedly connected with the middle part of the top end of a friction speed reducing plate 6, a threaded notch is formed in the bottom end of the connecting rod 5, the connecting rod 5 and the top end of the friction speed reducing plate 6 are in a rotary connection structure through the threaded notch, when the friction speed reducing plate 6 descends, friction speed reduction is performed on a first rotating wheel 12 and a second rotating wheel 14, after the friction speed reducing plate 6 is used, the friction speed reducing plate can be rotationally disassembled through the connecting rod 5, and a new friction speed reducing plate 6 can be replaced to work, the bottom of friction speed reduction plate 6 is equipped with recess shape brake block, and the internal diameter width of recess shape brake block is greater than the outside width of first runner 12 and second runner 13, can cover first runner 12 and second runner 13 completely and carry out friction speed reduction work, make the speed reduction protection work effect of device better, locating lever 8 is installed to buffer spring 7's both sides port department, and locating lever 8's the outside and roof 1 fixed connection, the right side of second rope 9 articulates there is rope rolling disc 10, the middle part of rope rolling disc 10 and the inboard swivelling joint of carousel locating plate 11, and the outside rigid coupling of rope rolling disc 10 has first runner 12.
As can be seen from fig. 3, the turntable positioning plate 11 includes a fixed block 111, a damping spring 112, a baffle 113 and two fixed rods 114, the damping spring 112 is fixedly connected to the right side of the fixed block 111, the baffle 113 is installed on the right side of the damping spring 112, the fixed rod 114 is disposed in the middle of the right side of the baffle 113, two second ropes 9 are disposed, when one of the ropes is broken, the apparatus performs deceleration braking, then the second rope 9 pulls the first pulley 12 and the second pulley 14 to move to the left, the vibration damage to the apparatus can be effectively reduced by disposing the damping spring 112, the right side of the baffle 113 is provided with a circular groove, the inner diameter of the circular groove is the same as the outer diameter of the two ends of the fixed rod 114, when the fixed rod 114 receives leftward impact force from the first pulley 12 and the second pulley 14, the fixed rod 114 impacts the baffle 113 and damages the baffle 113, then the fixed rod 114 impacts the damping spring 112 to perform damping operation, effectively reducing the damage to first rotor 12 and second rotor 14.
The lower side of the first runner 12 is provided with a roller 13, the right side of the first runner 12 is in meshed connection with a second runner 14, the middle part of the friction ring 15 is wrapped with a second rope 9, the top end of the friction ring 15 is fixedly connected with the first rope 3, the friction ring 15 is of a hollow structure, the inner diameter of the friction ring 15 is the same as the outer diameter of the second rope 9, when one of the second ropes 9 breaks, the remaining second rope 9 can be rapidly pulled leftwards, the second rope 9 is rapidly pulled so that the friction ring 15 breaks, the first rope 3 connected with the friction ring 15 after breaking moves rightwards, the connecting plate 4 and the friction decelerating plate 6 move downwards under the action of natural gravity, and the friction decelerating plate 6 can rub the first runner 12 and the second runner 14, so that the device can be protected from speed reduction.
When friction action is carried out to first runner 12 and second runner 14 at friction speed reduction plate 6, second rope 9 drags first runner 12 and second runner 14 left, friction speed reduction plate 6 moves left along with it to drive connection plate 4 and buffer spring 7 collide, buffer spring 7 can effectually reduce the impact that connection plate 4 caused roof 1, make the safety in utilization of device higher, after the braking is accomplished, can insert new baffle 113 in carousel locating plate 11, rotatory new friction speed reduction plate 6 that more later on changed can used repeatedly.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The utility model provides a tower crane is with dolly protection device that restricts absolutely, includes roof (1), buffer spring (7), second rope (9) and friction circle (15), its characterized in that: the upper side fixedly connected with assembly pulley (2) of roof (1), and the inboard sliding connection of assembly pulley (2) has first rope (3), the right side port of first rope (3) is inlayed and is had linkage plate (4), and the bottom rigid coupling of linkage plate (4) has connective bar (5), the downside of connective bar (5) and the top middle part fixed connection of friction speed-reducing plate (6), locating lever (8) are installed to the both sides port department of buffer spring (7), and the outside and roof (1) fixed connection of locating lever (8), the right side of second rope (9) articulates there is rope rolling disc (10), the middle part of rope rolling disc (10) and the inboard swivelling joint of carousel locating plate (11), and the outside rigid coupling of rope rolling disc (10) has first runner (12), the downside of first runner (12) is provided with gyro wheel (13), the right side of the first rotating wheel (12) is in meshed connection with the second rotating wheel (14), the middle part of the friction ring (15) is wrapped with a second rope (9), and the top end of the friction ring (15) is fixedly connected with a first rope (3);
the bottom end of the connecting rod (5) is provided with a threaded notch, and the connecting rod (5) and the top end of the friction speed reducing plate (6) are in a rotary connection structure through the threaded notch;
the bottom of friction reduction plate (6) is equipped with recess shape brake block, and the internal diameter width of recess shape brake block is greater than the outside width of first runner (12) and second runner (13).
2. The trolley rope breakage protection device for the tower crane according to claim 1, characterized in that: carousel locating plate (11) is including fixed block (111), damping spring (112), baffle (113) and fixed rod (114), the right side rigid coupling of fixed fast (111) has damping spring (112), and damping spring (112)'s right side installs baffle (113), and the right side middle part of baffle (113) is provided with fixed rod (114).
3. The trolley rope breakage protection device for the tower crane according to claim 2, characterized in that: the right side of the baffle (113) is provided with a circular groove, and the inner diameter of the circular groove is the same as the outer diameter of the two ends of the fixing rod (114).
4. The trolley rope breakage protection device for the tower crane according to claim 1, characterized in that: the friction ring (15) is of a hollow structure, and the inner diameter of the friction ring (15) is the same as the outer diameter of the second rope (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872529.0A CN108946528B (en) | 2018-08-02 | 2018-08-02 | Trolley rope breakage protection device for tower crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810872529.0A CN108946528B (en) | 2018-08-02 | 2018-08-02 | Trolley rope breakage protection device for tower crane |
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| Publication Number | Publication Date |
|---|---|
| CN108946528A CN108946528A (en) | 2018-12-07 |
| CN108946528B true CN108946528B (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810872529.0A Active CN108946528B (en) | 2018-08-02 | 2018-08-02 | Trolley rope breakage protection device for tower crane |
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| CN (1) | CN108946528B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111332968B (en) * | 2020-03-26 | 2020-09-15 | 浦江培咯电子科技有限公司 | Overload protection steering crane |
| CN112591302B (en) * | 2020-11-12 | 2022-05-20 | 中船澄西船舶修造有限公司 | Burst wind tower transports frock |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373427Y (en) * | 1999-08-11 | 2000-04-12 | 田焜 | Rope-breaking anti-fall device for hoister |
| CN201240792Y (en) * | 2008-06-29 | 2009-05-20 | 山东齐泰实业集团股份有限公司 | Broken rope processing apparatus for tower crane overhead pulley derricking trolley |
| CN203474331U (en) * | 2013-08-27 | 2014-03-12 | 中国建筑第七工程局有限公司 | Rope breaking prevention device for traveling trolley of tower crane |
| CN203877807U (en) * | 2014-05-23 | 2014-10-15 | 山东华联矿业股份有限公司 | Rope loosening protective device of winding type hoister |
| CN203998745U (en) * | 2014-07-15 | 2014-12-10 | 重庆大江本大工程机械有限责任公司 | The tower machine suspension hook disconnected rope anti-drop device of rushing to summit |
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