CN211310553U

CN211310553U - Anti-slip device for crane hook

Info

Publication number: CN211310553U
Application number: CN201921517181.XU
Authority: CN
Inventors: 张永成; 张永伟; 郇存平; 段明涛; 杜峰
Original assignee: Shandong Tianyuan Heavy Industry Group Co ltd
Current assignee: Shandong Tianyuan Heavy Industry Group Co ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-08-21
Anticipated expiration: 2029-09-12

Abstract

The utility model discloses a hoist lifting hook antiskid device that takes off relates to the hoist field, mainly includes lifting hook connecting device, is connected wire rope and lifting hook through wire rope connecting hole, lifting hook connecting hole, fastening cover shell, dog, fastening screw etc. that set up on lifting hook connecting device, has avoided wire rope's wearing and tearing, connects more firm to the antiskid of lifting hook takes off the effect has been realized. The utility model has the characteristics of simple structure, convenient to use, security height, easy to change the maintenance, application scope extensively etc.

Description

Anti-slip device for crane hook

Technical Field

The utility model relates to the hoist field particularly, relates to a crane hook antiskid takes off device.

Background

The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. Also known as crown blocks, navigation cranes and cranes. The bridge crane is a hoisting device which is transversely arranged above workshops, warehouses and stockyards to hoist materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

The hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle work alternately, so that the development and the use of the crane in the market are more and more extensive in order to facilitate the engineering operation activities of engineering personnel.

The problem often can exist in the use of hoist such as this, and lifting hook, hoist can lead to wire rope wearing and tearing because long-term use with the connection position of wire rope, can lead to droing of lifting hook, hoist when serious, threatens to equipment safety, engineer's personal safety. In order to prevent dropping of lifting hook and lifting appliance, chinese patent CN201820833844.8 discloses an anti-drop crane lifting appliance, which comprises a lifting appliance body, the lifting appliance body include the crossbeam, the crossbeam both ends be provided with mounting nut, crossbeam upper end fixedly connected with anti-drop supporting seat, anti-drop supporting seat intermediate position fixedly connected with mounting bracket, the mounting bracket on be provided with the mounting hole, the crossbeam lower extreme be provided with first couple and second couple, first couple and second couple on all install spring and pin, the equal fixedly connected with inner support rod in upper end and the second couple and outer support rod, the inner support rod pass through the connector and connect at the crossbeam lower extreme, outer support rod set up the outside of inner support rod, outer support rod swing joint at the crossbeam lower extreme. The problem that the hoist drops has been solved to this scheme, but equipment area occupied is great itself, and it is inconvenient slightly to use, has certain limitation in using.

In addition, another chinese patent CN201620516030.2 also discloses an anti-drop hanger, which comprises a hook part consisting of a hook and a rotating part, wherein a spherical cavity and a straight hole for installing the rotating part are provided on the force bearing part, the diameter of the spherical cavity is greater than that of the straight hole, the force bearing part comprises a front stop and a rear stop fastened by a screw 4 and a nut 5, the front stop and the rear stop are respectively provided with a corresponding semi-shaped cavity a and a semi-shaped cavity B and a semi-groove a and a semi-groove B, and the rotating part of the hook part is installed in the cavity C formed by combining the semi-shaped cavity a and the spherical semi-shaped cavity B in a matching manner. Through the structure, the utility model discloses a couple portion installs the back, because the effect that blocks of C cavity wall will not drop, solves the easy problem of breaking of connecting portion of hoist among the prior art. The problem that drops of hoist has been fine to the solution, nevertheless because the wearing and tearing at the rotation position in the use can lead to the device to receive destruction, will not use again after destroying, can only change the replacement device of new, consequently also has certain limitation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can prevent the unexpected device that drops of crane hook in the use, the safety of guarantee engineering operation, protection hoisting equipment, the personal safety who prevents the engineering personnel receive the threat. Meanwhile, the device has the characteristics of simple structure, convenience in use, easiness in maintenance, wide adaptability range and the like, so that the applicability, convenience, safety, stability and the like of equipment are guaranteed.

Based on the above purposes, the utility model provides a crane hook anti-slipping device, which comprises a hook connecting device 3 and is characterized in that the upper end of the hook connecting device 3 is provided with a steel wire rope connecting hole 5, and the lower end is provided with a hook connecting hole 1; the lower end of the lifting hook connecting device 3 is provided with a groove 2 which is perpendicular to the lifting hook connecting hole 1 and runs through left and right, and the groove 2 completely covers the lifting hook connecting hole 1; the lifting hook connecting hole 1 is inserted with a bolt 7 with the same diameter as the lifting hook connecting hole 1, and the length of the bolt 7 is the same as the diameter of the lifting hook connecting device 3. The groove 2 can enable the upper end of the hook to penetrate into the hook connecting device 3, the connecting hole on the hook corresponds to the position of the hook connecting hole 1 on the hook connecting device 3, and the hook is connected onto the hook connecting device 7 through the bolt 7. Compare in lug connection lifting hook and wire rope, utilize lifting hook connecting device 3 can make to connect inseparabler, connect also more firm, the lifting hook also can be nimble activity for between the wire rope, has avoided the friction of motion between wire rope and the lifting hook.

Furthermore, the part of the bolt 7, which is overlapped with the hook connecting hole 1, is provided with corresponding threads. The screw thread can be conveniently inserted into the hook connecting hole 1, and simultaneously, the hook can be prevented from falling off from the hook connecting device 3 due to the falling off of the bolt 7 in the using process.

Furthermore, a circle of convex stop heads 8 are arranged at the lower end of the lifting hook connecting device 3.

Furthermore, be equipped with fastening cover shell 6 outside lifting hook connecting device 3, the internal diameter of fastening cover shell 6 with lifting hook connecting device 3's external diameter is the same, overlaps and establishes lifting hook connecting device 3 outside and cover completely lifting hook connecting hole 1. After the fastening sleeve 6 is arranged on the hook connecting device 3, the stopper 8 can play a role in limiting and prevent the fastening sleeve 6 from falling off. The fastening housing 6 completely covers the hook attachment hole 1, and can prevent the bolt 7 from coming off from the hook attachment hole 1 due to the rotation of the bolt 7 caused by the force between the hook and the bolt 7 in the use process, thereby further increasing the stability and safety of the anti-slip device.

Furthermore, be provided with a plurality of fastening screw holes 4 on lifting hook connecting device 3, fastening screw hole 4 is parallel to lifting hook connecting hole 1 evenly spreads in the lifting hook connecting hole 1 outside, be provided with on the fastening cover shell 6 with the screw of the same model of fastening screw hole 4 one-to-one.

Furthermore, the front side and the rear side of each fastening screw hole 4 are respectively provided with three fastening screw holes, and the angle between the center of each two adjacent fastening screw holes 4 and the center of the hook connecting hole 1 is 120 degrees. The fastening housing 6, after being placed on the hook connecting means 3, can be completely fixed to the hook connecting means 3 by using bolts and arranged fastening screw holes 4.

Furthermore, in order to save the material consumption, the fastening housing 6 can be replaced by a front gasket and a rear gasket, and the two gaskets are fixed on the front side and the rear side of the hook connecting device 3 through bolts and fastening screw holes 4 so as to completely cover the hook connecting hole 1.

The utility model discloses a lifting hook connecting device 3 that has special construction links together lifting hook and wire rope, and the lifting hook after connecting can not cause wearing and tearing to wire rope for wire rope motion any more, simultaneously because its connected mode is more firm for wire rope and lifting hook lug connection's mode, consequently can realize the effect that the lifting hook antiskid is taken off. In the process of using and maintaining the device, only the bolt 7 is a worn part, so that the device can be renewed and maintained only by replacing the bolt 7, and the use is convenient.

Drawings

Fig. 1 is a schematic structural view of an anti-slip device of a crane hook, fig. 2 is a schematic structural view of a three-dimensional structure of a hook connecting hole and a groove on one side, and fig. 3 is a schematic structural view of a hook connecting bolt.

Wherein, 1, a hook connecting hole; 2. a groove; 3. a hook connecting device; 4. fastening screw holes; 5. connecting holes for steel wire ropes; 6. fastening the casing; 7. bolting; 8. and (6) stopping the head.

Detailed Description

The present invention will be described in more detail with reference to several embodiments.

Example 1

An anti-slip device for a crane hook comprises a hook connecting device 3, wherein the upper end of the hook connecting device 3 is provided with a steel wire rope connecting hole 5, and the lower end of the hook connecting device 3 is provided with a hook connecting hole 1; the lower end of the lifting hook connecting device 3 is provided with a groove 2 which is vertical to the lifting hook connecting hole 1 and runs through left and right, and the groove 2 completely covers the lifting hook connecting hole 1; the hook connecting hole 1 is inserted with a bolt 7 with the same diameter as the hook connecting hole 1, and the length of the bolt 7 is the same as the diameter of the hook connecting device 3. The coincident part of the bolt 7 and the hook connecting hole 1 is provided with corresponding screw threads.

In the implementation process of the embodiment, the steel wire rope penetrates through the steel wire rope connecting hole 5 to be connected with the steel wire rope and the lifting appliance connecting device 3, the upper end of the lifting hook is inserted into the groove 2 of the lifting hook connecting device 3, the connecting hole in the lifting hook corresponds to the position of the lifting hook connecting hole 1 in the lifting hook connecting device 3, the bolt 7 is inserted into the lifting hook connecting hole 1 in the lifting hook connecting device 7, and the lifting hook is connected with the lifting hook connecting device 3.

Through utilizing lifting hook connecting device 3 to realize being connected of lifting hook and wire rope, be different from traditional directness and be connected the lifting hook with wire rope, this kind of mode can guarantee the lifting hook in the use not with wire rope between the friction, reduce wire rope's loss, this kind of connected mode is more stable than traditional connected mode simultaneously.

Example 2

As shown in fig. 1, the anti-slip device for the crane hook comprises a hook connecting device 3, wherein the upper end of the hook connecting device 3 is provided with a steel wire rope connecting hole 5, and the lower end of the hook connecting device 3 is provided with a hook connecting hole 1; the lower end of the lifting hook connecting device 3 is provided with a groove 2 which is vertical to the lifting hook connecting hole 1 and runs through left and right, and the groove 2 completely covers the lifting hook connecting hole 1; the hook connecting hole 1 is inserted with a bolt 7 with the same diameter as the hook connecting hole 1, and the length of the bolt 7 is the same as the diameter of the hook connecting device 3. The coincident part of the bolt 7 and the hook connecting hole 1 is provided with corresponding threads; a circle of convex stop heads 8 are arranged at the lower end of the lifting hook connecting device 3; a fastening sleeve 6 is arranged outside the lifting hook connecting device 3, the inner diameter of the fastening sleeve 6 is the same as the outer diameter of the lifting hook connecting device 3, the fastening sleeve is sleeved outside the lifting hook connecting device 3, and the lifting hook connecting hole 1 can be completely covered; three fastening screw holes 4 are respectively arranged on the front side and the rear side of the lifting hook connecting device 3, the fastening screw holes 4 are parallel to the lifting hook connecting hole 1 and are uniformly distributed outside the lifting hook connecting hole 1, and the angle between the centers of two adjacent fastening screw holes 4 and the center of the lifting hook connecting hole 1 is 120 degrees. The fastening housing 6 is provided with screw holes of the same type corresponding to the fastening screw holes 4 one to one.

The embodiment of this embodiment is substantially the same as that of embodiment 1, but is different from embodiment 1 in that a stopper 8, a fastening sleeve 6 and a fastening screw hole 4 are added in this embodiment, so in the implementation of this embodiment, the fastening sleeve 6 is sleeved outside the hook connecting device 3, the lower end of the fastening sleeve 6 contacts the stopper 8, the screw hole on the fastening sleeve 6 is just coincident with the fastening screw hole 4 on the hook connecting device 3, and the fastening sleeve 6 and the hook connecting device 3 are tightly connected together by using a bolt.

Compare in embodiment 1, fastening housing 6 can restrict bolt 7 in the lifting hook connecting hole 1 on lifting hook connecting device 3 completely in this embodiment, prevents bolt 7 from receiving the effect of power and rotating the bolt 7 that leads to and from droing of lifting hook connecting hole 1 in hoisting process, and it is that the structural stability of anti-skidding device is better, and factor of safety is higher.

Example 3

An anti-slip device for a crane hook comprises a hook connecting device 3, wherein the upper end of the hook connecting device 3 is provided with a steel wire rope connecting hole 5, and the lower end of the hook connecting device 3 is provided with a hook connecting hole 1; the lower end of the lifting hook connecting device 3 is provided with a groove 2 which is vertical to the lifting hook connecting hole 1 and runs through left and right, and the groove 2 completely covers the lifting hook connecting hole 1; the hook connecting hole 1 is inserted with a bolt 7 with the same diameter as the hook connecting hole 1, and the length of the bolt 7 is the same as the diameter of the hook connecting device 3. The coincident part of the bolt 7 and the hook connecting hole 1 is provided with corresponding threads; a circle of convex stop heads 8 are arranged at the lower end of the lifting hook connecting device 3; a gasket which can completely cover the hook connecting hole 1 is respectively arranged at the front side and the rear side of the outer part of the hook connecting device 3; three fastening screw holes 4 are respectively arranged on the front side and the rear side of the lifting hook connecting device 3, the fastening screw holes 4 are parallel to the lifting hook connecting hole 1 and are uniformly distributed outside the lifting hook connecting hole 1, and the angle between the centers of two adjacent fastening screw holes 4 and the center of the lifting hook connecting hole 1 is 120 degrees. The gasket is provided with screw holes with the same model which are in one-to-one correspondence with the fastening screw holes 4.

The embodiment of this embodiment is basically the same as embodiment 2, but differs from embodiment 2 in that the fastening housing 6 is replaced with a washer, which can perform the same function as the fastening housing and prevent the bolt 7 from falling off from the hook attachment hole 1 due to rotation of the bolt 7 under the force applied thereto during the lifting process. Compared with the fastening sleeve case 6, the gasket has lower consumable material in the manufacturing process and is relatively easier to manufacture, but after the bolt is loosened, the gasket can directly fall off, and the fastening sleeve case 6 cannot fall off due to the limitation of the annular structure and the stop head 8. Therefore, the embodiment 2 is higher than the embodiment in terms of safety.

Claims

1. An anti-slipping device for a crane hook comprises a hook connecting device (3), and is characterized in that a steel wire rope connecting hole (5) is formed in the upper end of the hook connecting device (3), and a hook connecting hole (1) is formed in the lower end of the hook connecting device; the lower end of the lifting hook connecting device (3) is provided with a groove (2) which is perpendicular to the lifting hook connecting hole (1) and is communicated left and right, and the groove (2) completely covers the lifting hook connecting hole (1); the lifting hook is characterized in that a bolt (7) with the same diameter as the lifting hook connecting hole (1) is inserted into the lifting hook connecting hole (1), and the length of the bolt (7) is the same as the diameter of the lifting hook connecting device (3).

2. Anti-slip device for a crane hook according to claim 1, characterised in that the hook attachment means (3) is provided at its lower end with a ring of raised stops (8).

3. Crane hook anti-slip device according to claim 1, characterized in that the hook connection means (3) is externally provided with a fastening housing (6), the fastening housing (6) having an inner diameter identical to the outer diameter of the hook connection means (3), fitting externally to the hook connection means (3) and completely covering the hook connection hole (1).

4. The crane hook anti-slip device according to claim 3, wherein the hook connecting device (3) is provided with a plurality of fastening screw holes (4), the fastening screw holes (4) are parallel to the hook connecting hole (1) and uniformly distributed outside the hook connecting hole (1), and the fastening casing (6) is provided with screw holes of the same type corresponding to the fastening screw holes (4) one to one.