CN218778641U

CN218778641U - Tower crane hoist and mount overload prevention device

Info

Publication number: CN218778641U
Application number: CN202223498159.XU
Authority: CN
Inventors: 庄海军
Original assignee: Jiangsu Dole Thermal Energy Equipment Co ltd
Current assignee: Jiangsu Dole Thermal Energy Equipment Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-03-31
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to a construction technical field specifically is a tower crane hoist and mount overload prevention device, which comprises a housin, the rotation groove has been seted up to the inside of casing, the inside in rotation groove is provided with carousel and pulley, the pulley is located the downside of carousel, the carousel is fixed with rotation groove joint, pulley annular side winding has wire rope, and wire rope upwards extends to the carousel both sides through out the casing through the carousel, it has the holding back of stopping to rotate inslot wall and carousel both sides wire rope and correspond the rigidity, be provided with the extensible member between pulley and the carousel, the lower terminal surface of casing is fixed with the lifting hook. The utility model discloses a pulley can trigger the warning light to light the warning when the cooperation of carousel is to overload hoist and mount heavy object to further extrude restriction wire rope displacement through the resistance plate of stopping and play overload protection to wire rope, utilize the extensible member to reduce both frictional resistance to wire rope and pulley lubrication simultaneously, reduce the damage, extension fixture life.

Description

Tower crane hoist and mount overload prevention device

Technical Field

The utility model relates to a construction technical field especially relates to a tower crane hoist and mount overload prevention device.

Background

The existing overload prevention device of the tower crane is mostly provided with an arch torque limiter which can give out early warning when the crane load reaches a set value, because the existing arch torque limiter is exposed outside, after the existing arch torque limiter is used for a long time and is subjected to wind, wind and rain, parts of the limiter are easy to age, the limiter needs to be maintained and repaired frequently, but in the actual construction process, because the limiter is not in a tower crane cab, part of a tower crane driver can neglect the maintenance and the repair of the limiter frequently, even if the limiter ages and fails in the construction process, the limiter cannot be known in time, huge hidden dangers are caused to the construction safety, and therefore, the overload prevention device which is convenient to check and maintain is urgently needed in the current stage;

the Chinese patent with the publication number of CN217418004U specifically discloses a tower crane hoisting overload prevention device, and the technical scheme of the solution includes two vertical plates arranged in front and back, each vertical plate is provided with a through chute in front and back along the horizontal direction, the utility model discloses set the overload prevention device on the hook, the worker can observe the using state of the overload prevention device every time the worker hangs the heavy object on the hook and takes off the heavy object from the hook, can inspect and maintain the device in real time, and is very convenient;

although the device is through designing structures person of facilitating the use such as spout and observing overload protection structural state, because the tower crane equipment is for being outdoor apparatus mostly, this structure receives rainwater erosion or winter ponding very easily and freezes and influence the structure operation, causes overload protection life low, and the limitation is big.

Therefore, the overload prevention device for hoisting of the tower crane is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a tower crane hoisting overload prevention device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tower crane hoist and mount overload prevention device, includes the casing, the rotation groove has been seted up to the inside of casing, the inside in rotation groove is provided with carousel and pulley, the pulley is located the downside of carousel, the carousel is fixed with rotation groove joint, the winding of pulley annular side has wire rope, and wire rope upwards extends to the carousel both sides through out the casing through the carousel, it is fixed with the holding back plate of stopping to rotate inslot wall and carousel both sides wire rope corresponding position, be provided with the extensible member between pulley and the carousel, the lower terminal surface of casing is fixed with the lifting hook.

As an improved scheme of the utility model: the pulley both sides middle part is rotated and is connected with the slider, and rotates inslot wall and the slider and correspond the position and seted up the spout, the slider is located the inside sliding connection of spout, and is fixed with the spring between the upside of slider and the spout.

As an improved scheme of the utility model: the sliding block is made of conductive metal, electrode plates are connected to the upper side of the inner wall of the sliding groove in an embedded mode, a storage battery is arranged on the upper side inside the shell, and warning lamps are fixed to the lower end face of the shell, located on the two sides of the lifting hook.

As an improved scheme of the utility model: the extensible member includes and rotates the sleeve of inslot wall activity, the sleeve is fixed with the carousel, telescopic lower extreme swing joint has the telescopic link, the lower extreme laminating pulley of telescopic link.

As an improved scheme of the utility model: the inside upside of sleeve is fixed with the sponge, soak lubricating oil in the sponge, the oil filler point of intercommunication in the sleeve is seted up to the casing outside.

As an improved scheme of the utility model: the brake baffle is of an arc-shaped structural design, and anti-skid grains are arranged on one side of the brake baffle close to the steel wire rope.

Compared with the prior art, the beneficial effects of the utility model are that:

this application can trigger the warning light through the cooperation of pulley with the carousel and light the warning when hoist and mount heavy object transshipping to further extrude restriction wire rope displacement through stopping the baffler and play overload protection to wire rope, utilize the extensible member to reduce both frictional resistance to wire rope and pulley lubrication simultaneously, reduce the damage, extension fixture life.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front sectional view of the overall structure of the present invention;

FIG. 3 is a schematic left-side sectional view of the overall structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a housing; 2. a hook; 3. a wire rope; 4. a turntable; 5. a pulley; 6. a telescoping member; 7. a brake drag plate; 8. a rotating groove; 9. a slider; 10. a spring; 11. an electrode sheet; 12. a warning light; 13. a sleeve; 14. a telescopic rod.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore are not to be construed as limiting the present invention, and further, the terms "first", "second", and the like are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features being referred to, whereby the features defined as "first", "second", and the like may explicitly or implicitly include one or more such features, and in the description of the present invention, unless otherwise indicated, the terms "plurality" means two or more than two.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or the two elements may be connected through an intermediate medium, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

Referring to fig. 1-4, a tower crane hoist and mount overload protection device, including casing 1, rotation groove 8 has been seted up to the inside of casing 1, the inside of rotating groove 8 is provided with carousel 4 and pulley 5, pulley 5 is located the downside of carousel 4, carousel 4 is fixed with rotation groove 8 joints, 5 toroidal side winding of pulley have wire rope 3, and wire rope 3 upwards extends to carousel 4 both sides through out casing 1 through carousel 4, it is fixed with the baffler 7 of stopping to rotate 8 inner walls of groove and 4 both sides wire rope 3 correspondence rigidity of carousel, be provided with extensible member 6 between pulley 5 and the carousel 4, the lower terminal surface of casing 1 is fixed with lifting hook 2, and this application can trigger warning light 12 when can be to overload hoist the heavy object through the cooperation of pulley 5 with carousel 4 and light the warning to further extrude restriction wire rope 3 displacement to overload protection through the baffler 7 of stopping, utilize extensible member 6 to reduce both frictional resistance to wire rope 3 and pulley 5 lubrication and pulley 5 simultaneously, reduce the damage, extension fixture life.

Specifically, 5 both sides middle part of pulley rotates and is connected with slider 9, and rotates 8 inner walls in groove and has seted up the spout with slider 9 corresponding position, slider 9 is located the inside sliding connection of spout, and is fixed with spring 10 between the upside of slider 9 and the spout.

Specifically, slider 9 constitutes for electrically conductive metal material, and spout inner wall upside embedded electrode slice 11 that is connected with, the inside upside of casing 1 is provided with the battery, the lower terminal surface of casing 1 is located 2 both sides rigidity of lifting hook and is had warning light 12, and the battery is connected electrically conductively through electrode slice 11 and slider 9, and warning light 12 lights, warns the staff.

Specifically, extensible member 6 includes with the sleeve 13 that rotates 8 inner wall activities in groove, sleeve 13 is fixed with carousel 4, the lower extreme swing joint of sleeve 13 has telescopic link 14, pulley 5 is laminated to the lower extreme of telescopic link 14, and normally lift by crane in-process telescopic link 14 can compress the interior sponge of sleeve 13, and lubricating oil flows out and drips to pulley 5 surface and 3 surfaces of wire rope play to both lubricated effect.

Specifically, the inside upside of sleeve 13 is fixed with the sponge, soak lubricating oil in the sponge, the oil filler point of intercommunication in sleeve 13 is seted up to casing 1 outside, normally lifts by crane in-process telescopic link 14 can compress the interior sponge of sleeve 13, and lubricating oil flows and drips to pulley 5 surface and 3 surfaces of wire rope and plays lubricated effect to both.

Specifically, stop the baffler 7 and be arc structural design, and its one side that is close to wire rope 3 is provided with anti-skidding line, and carousel 4 can upward movement cooperation stop the baffler and extrude spacingly to wire rope 3, and wire rope 3 then can't normally move this moment plays overload protection's effect.

The utility model discloses a theory of operation is: during operation, 2 hook objects on lifting hook, then crane drive and roll-up wire rope 3 force casing 1 upward displacement, lift by crane heavy object through lifting hook 2, wire rope 3 can rotate the removal through pulley 5 this moment, and drag pull pulley 5 upward displacement, pulley 5 then rotates and upwards shifts extrusion spring 10 in the spout through slider 9, once when jack-up object gravity is great, when wire rope 3 pulls pulley 5, slider 9 can upward movement and extrusion spring 10, until slider 9 and electrode slice 11 contact, slider 9 displacement to extreme position, the battery is connected electrically with slider 9 through electrode slice 11 this moment, warning light 12 lights, and pulley 5 moves the in-process also can extrude telescopic link 14 in sleeve 13, telescopic link 14 can compress the interior sponge of sleeve 13 in the normal lift by crane in-process, lubricating oil flows out and drips to pulley 5 surface and wire rope 3 surface plays to both lubricated effect, and in case transship wherein, telescopic link 14 moves to the inside top of sleeve 13 this moment, sleeve 13 can continue to move upward extrusion carousel 4 of extrusion upside this moment, carousel 4 and rotation groove 8, this moment the joint play the normal spacing effect of preventing of the movement of wire rope 3, this moment normal extrusion, normally the movement of the steel rope can not extrude the cooperation of extrusion.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a tower crane hoist and mount overload protection device, includes casing (1), its characterized in that, rotation groove (8) have been seted up to the inside of casing (1), the inside that rotates groove (8) is provided with carousel (4) and pulley (5), pulley (5) are located the downside of carousel (4), carousel (4) are fixed with rotation groove (8) joint, pulley (5) annular side winding has wire rope (3), and wire rope (3) upwards extend to carousel (4) both sides through carousel (4) and run through out casing (1), it has the resistance board (7) of stopping to rotate groove (8) inner wall and carousel (4) both sides wire rope (3) and correspond the position fixing, be provided with extensible member (6) between pulley (5) and carousel (4), the lower terminal surface of casing (1) is fixed with lifting hook (2).

2. The tower crane hoisting overload prevention device according to claim 1, wherein the middle parts of the two sides of the pulley (5) are rotatably connected with a sliding block (9), a sliding groove is formed in the inner wall of the rotating groove (8) and corresponds to the sliding block (9), the sliding block (9) is positioned in the sliding groove and is in sliding connection, and a spring (10) is fixed between the upper side of the sliding block (9) and the sliding groove.

3. The tower crane hoisting overload prevention device according to claim 2, wherein the sliding block (9) is made of conductive metal, electrode plates (11) are connected to the upper side of the inner wall of the sliding groove in an embedded mode, a storage battery is arranged on the upper side inside the shell (1), and warning lamps (12) are fixed to the lower end face of the shell (1) and located on two sides of the lifting hook (2).

4. The tower crane hoisting overload prevention device according to claim 3, wherein the telescopic part (6) comprises a sleeve (13) which is movable with the inner wall of the rotating groove (8), the sleeve (13) is fixed with the rotating disc (4), the lower end of the sleeve (13) is movably connected with a telescopic rod (14), and the lower end of the telescopic rod (14) is attached to the pulley (5).

5. The tower crane hoisting overload prevention device according to claim 4, wherein a sponge is fixed on the upper side inside the sleeve (13), lubricating oil is soaked in the sponge, and an oil filling hole communicated with the inside of the sleeve (13) is formed in the outer part of the shell (1).

6. The tower crane hoisting overload prevention device according to claim 1, wherein the brake block plate (7) is designed in an arc-shaped structure, and anti-slip lines are arranged on one side of the brake block plate close to the steel wire rope (3).