CN220317106U

CN220317106U - Linkage self-discharging lifting hook

Info

Publication number: CN220317106U
Application number: CN202322019874.9U
Authority: CN
Inventors: 隋铮; 宋玉东; 郝嘉宇; 王忠鹏; 李殿圣
Original assignee: Dalian Shipyard Tools Industry Co ltd
Current assignee: Dalian Shipyard Tools Industry Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-01-09
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a linkage self-unloading lifting hook, which is characterized in that: the self-discharging lifting hook comprises a shell, the top of the shell is connected with a lifting ring, the bottom of the shell is rotationally connected with a lifting hook body through a lifting hook rotating shaft, a driving motor is further arranged in the shell, the output end of the driving motor is connected with the input end of the gearbox, driving teeth are arranged on the output end of the gearbox, the driving teeth are meshed with a lifting hook gear and a checking gear simultaneously, the lifting hook gear is in key connection with the lifting hook rotating shaft, the checking gear is rotationally supported in the shell, a checking block is arranged on the checking gear, a counting sensor matched with the checking block is arranged in the shell, a rack sliding groove is formed in the shell, a rack baffle is slidably connected in the rack sliding groove, and a rack section on the upper portion of the rack baffle is meshed with the driving teeth.

Description

Linkage self-discharging lifting hook

Technical Field

The utility model relates to the field of lifting devices, in particular to a linkage self-discharging lifting hook.

Background

When a crane, a hoist and other devices are used for hoisting a heavy object, a sling for connecting the heavy object is required to be hung on a lifting hook of the crane, and the lifting hook is used for realizing the connection with the heavy object. In order to prevent the sling from falling out of an opening on the lifting hook in the process of crane operation, the hooking and unhooking operations of the sling need to be completed with the assistance of staff; in view of this, a lifting hook structure in which a lifting hook body can rotate within a certain range appears in the market at present, and when the lifting hook body rotates to a certain angle, a sling can automatically fall off from the lifting hook, so that the self-unloading hook operation under an unmanned state is realized; meanwhile, in the lifting hook structure, the end part of the lifting hook body is provided with the telescopic stop block, when the lifting hook is in a working state, the stop block can extend out under the drive of the driving mechanism and is blocked at the opening of the lifting hook, so that a sling can be prevented from falling out of the lifting hook due to shaking or other reasons;

however, the following problems remain with hooks of the above type during use: the rotation action of the lifting hook body and the telescopic action of the stop block are needed to be realized by respectively configuring two sets of driving mechanisms, the lifting hook body and the stop block need to be matched with each other, namely, when the lifting hook body moves to a working position, the stop block just needs to extend out completely and be blocked at the opening of the lifting hook body, and the two sets of driving mechanisms need to realize the matched actions, so that a certain trouble is brought to the design of the two sets of driving mechanisms.

There is thus a need for a method or apparatus that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides the self-discharging lifting hook which has the advantages of simple structure, ingenious design, reasonable layout and low cost, and can realize linkage between the lifting hook body and the rack baffle plate blocked at the opening of the lifting hook body.

The technical scheme of the utility model is as follows: a coordinated self-discharging lifting hook which is characterized in that: the self-unloading lifting hook comprises a shell 1, a lifting ring 2 is connected to the top of the shell 1, a lifting hook body 4 is rotatably connected to the bottom of the shell 1 through a lifting hook rotating shaft 3, a driving motor 5 is further arranged in the shell 1, the output end of the driving motor 5 is connected with the input end of a gearbox 6, a driving tooth 7 is arranged at the output end of the gearbox 6, the driving tooth 7 is meshed with a lifting hook gear 8 and a checking gear 9 at the same time, the lifting hook gear 8 is in key connection with the lifting hook rotating shaft 3, the checking gear 9 is rotatably supported in the shell 1, a checking block is arranged on the checking gear 9, a counting sensor matched with the checking block is arranged in the shell 1, a rack sliding groove 11 is arranged in the shell 1, a rack baffle 12 is connected in a sliding manner, a rack section 13 on the upper part of the rack baffle 12 is meshed with the driving tooth 7,

a guide block 10 is fixedly connected in the shell 1 through a bolt 14, a guide bar is arranged on the guide block 10 and is slidably connected in a guide groove arranged on a rack baffle 12,

when the hook body 4 is in the working position, the bottom end surface of the rack baffle 12 is in contact with the end of the hook body 4.

Compared with the prior art, the utility model has the following advantages:

the linkage type self-discharging lifting hook in the structural form is simple in structure, ingenious in design and reasonable in layout, two sets of independent driving mechanisms are required to be arranged in the traditional self-discharging lifting hook, the problems that the cost is high, the structure is complex, the occupied space is large, the two parts of actions are easy to be out of time and the like caused by the fact that the two sets of driving mechanisms are required to realize the matched action are solved, a special linkage type structure is designed, the swinging of the lifting hook body and the linear movement of the baffle are realized simultaneously by utilizing one set of driving mechanism (a motor drives a driving tooth), in the process, the lifting hook body and the baffle are linked, so that the baffle is inevitably blocked at the opening of the lifting hook body when the lifting hook body is in a working state, and the baffle is inevitably recovered into a shell when the lifting hook body is in a unhooking state; the structure ensures the reliability and the safety of the lifting hook during working, and greatly simplifies the internal structure of the self-discharging lifting hook and effectively controls the cost; therefore, the linkage self-discharging lifting hook has various advantages, is particularly suitable for popularization and application in the field, and has very broad market prospect.

Drawings

Fig. 1 is a front view of an embodiment of the present utility model.

Fig. 2 is a side view of an embodiment of the present utility model.

The lifting hook comprises a shell 1, a lifting ring 2, a lifting hook rotating shaft 3, a lifting hook body 4, a driving motor 5, a gearbox 6, driving teeth 7, a lifting hook gear 8, a checking gear 9, a guide block 10, a rack chute 11, a rack baffle 12, a rack section 13 and a bolt 14.

Detailed Description

The following description of the embodiments of the utility model refers to the accompanying drawings, in which: as shown in figures 1 and 2 of the drawings,

the linkage self-unloading lifting hook comprises a shell 1 serving as a foundation, a lifting ring 2 is connected to the top of the shell 1, a lifting hook body 4 is rotatably connected to the bottom of the shell 1 through a lifting hook rotating shaft 3, a driving motor 5 is further arranged in the shell 1, the output end of the driving motor 5 is connected with the input end of a gearbox 6, a driving tooth 7 is arranged on the output end of the gearbox 6, the driving tooth 7 is meshed with a lifting hook gear 8 and a checking gear 9 at the same time, the lifting hook gear 8 is in key connection with the lifting hook rotating shaft 3, the checking gear 9 is rotatably supported in the shell 1, a checking block is arranged on the checking gear 9, a counting sensor matched with the checking block is arranged in the shell 1, a rack sliding groove 11 is formed in the shell 1, a rack baffle 12 is slidably connected in the rack sliding groove 11, a rack section 13 on the upper part of the rack baffle 12 is meshed with the driving tooth 7,

The driving motor 5 and the counting sensor are controlled by a control module arranged in the shell 1, a remote data transmission module is arranged in the control module, and the control module can exchange remote data with a remote control system through the remote data transmission module.

The working process of the linkage self-discharging lifting hook provided by the embodiment of the utility model is as follows: when the lifting hook is needed to be used for hanging heavy objects, a control system in the crane is used for sending a signal to a control module in the device, the control module controls a driving motor 5 to work, the driving motor 5 rotates positively, a lifting hook gear 8 is driven to rotate through a driving tooth 7, and as the lifting hook gear 8 is connected with a lifting hook rotating shaft 3 through a key, the lifting hook gear 8 drives the lifting hook rotating shaft 3 to rotate, and then a lifting hook body 4 is driven to swing anticlockwise; meanwhile, the driving teeth 7 drive the rack baffle plate 12 to do downward linear motion in the rack sliding groove 11, when the lifting hook body 4 swings to the working position, the bottom end surface of the rack baffle plate 12 contacts with the end part of the lifting hook body 4, namely, the lateral opening of the lifting hook body 4 is closed, and a rigging in the lifting hook body 4 is prevented from falling out of the lateral opening of the lifting hook body 4;

when the weight is lifted in place and needs to be detached, a control system sends a signal to a control module in the device, the control module drives a motor 5 to work, the motor 5 is driven to rotate reversely, the lifting hook body 4 swings clockwise, meanwhile, the rack baffle 12 does linear motion upwards, and when the lifting hook body 4 swings to a certain angle, a rigging connected to the lifting hook body 4 automatically slides down from an opening in the side direction of the lifting hook body 4, so that the aim of automatic unloading is fulfilled;

in the moving process, the check gear 9 rotates under the drive of the driving gear 7, in the rotating process, the counting sensor calculates the rotating number of turns of the check gear 9 in a mode of detecting the check block, and as the transmission ratio between the driving gear 7 and the check gear 9 and the transmission ratio between the driving gear 7 and the output shaft of the driving motor 5 are known, the rotating number of turns of the driving motor 5 can be verified by calculating the rotating number of turns of the check gear 9, the working state and the working condition of the device can be detected in real time in this mode, once the control system finds that the rotating number of turns of the driving motor 5 and the rotating number of turns of the check gear 9 cannot be matched, the device is proved to have a problem, and the control system can control an executing mechanism (such as an acousto-optic warning device and the like) arranged in a crane to work so as to remind operators of attention;

also, in the above-mentioned moving process, the rack bar 12 makes a reciprocating rectilinear motion in the rack chute 11, and in the moving process of the rack bar 12, the guide groove formed thereon makes a relative motion with the guide bar on the guide block 10 fixed on the housing 1, and the structure can play a guiding role.

Claims

1. A coordinated self-discharging lifting hook which is characterized in that: the self-discharging lifting hook comprises a shell (1), a lifting ring (2) is connected to the top of the shell (1), a lifting hook body (4) is rotatably connected to the bottom of the shell (1) through a lifting hook rotating shaft (3), a driving motor (5) is further arranged in the shell (1), the output end of the driving motor (5) is connected with the input end of a gearbox (6), driving teeth (7) are arranged on the output end of the gearbox (6), the driving teeth (7) are simultaneously meshed with a lifting hook gear (8) and a checking gear (9), the lifting hook gear (8) is connected with the lifting hook rotating shaft (3) through keys, the checking gear (9) is rotatably supported in the shell (1), a checking block is arranged on the checking gear (9), a counting sensor matched with the checking block is arranged in the shell (1), a rack chute (11) is arranged in the shell (1), a rack baffle (12) is connected in a sliding mode, a rack section (13) on the upper portion of the rack baffle (12) is meshed with the driving teeth (7) in a sliding mode,

a guide block (10) is fixedly connected in the shell (1) through a bolt (14), a guide strip is arranged on the guide block (10), the guide strip is connected in a sliding way in a guide groove arranged on a rack baffle plate (12),

when the lifting hook body (4) is in the working position, the bottom end surface of the rack baffle plate (12) is contacted with the end part of the lifting hook body (4).