CN219119616U

CN219119616U - Anti-falling torque nut for live working robot

Info

Publication number: CN219119616U
Application number: CN202223020915.8U
Authority: CN
Inventors: 王涛; 王国斌; 陈兵; 陈能
Original assignee: Fujian Daguan Electronic Technology Co ltd
Current assignee: Fujian Daguan Electronic Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-06-02
Anticipated expiration: 2032-11-15

Abstract

A drop-resistant torque nut for a live working robot, comprising: the fixed cover is located the screw-off type moment nut on the bolt, and screw-off type moment nut includes: a screw sleeve portion and a nut portion; further comprises: a sleeve member and a drop-proof housing; a sleeve member comprising: the sleeve part comprises a sleeve part body and three bulges which are arranged on the sleeve part body at intervals; the sleeve member body is used for sleeving a nut part of the twisting-off torque nut; the anti-falling shell is cylindrical and is used for coating the screwing-off type torque nut and the sleeve part body; one end of the anti-drop shell, which is close to the bolt, is fixedly connected with the screw sleeve part, and the other end of the anti-drop shell is provided with an inner baffle ring for blocking the sleeve part body, so that the three protrusions are exposed out of the anti-drop shell. The torque nut is not separated from the bolt main body when being broken, so that the safety is ensured, the working procedure of collecting the broken nut after the robot is screwed is not needed, and the working efficiency is improved.

Description

Anti-falling torque nut for live working robot

Technical Field

The utility model belongs to the technical field of electric power operation tools, and particularly relates to a drop-proof torque nut for an electrified robot.

Background

Along with the rapid development of economy and power grid construction, the dependence degree of the economy construction and people life on electric power is higher and higher, and the bearing capacity of society on power failure is poorer and worse. Live working is one of important means for solving the problem, and is an effective working method for avoiding power failure during maintenance to ensure normal power supply, and the live working refers to carrying out test, maintenance and other operations on high-voltage electric equipment under the condition of no power failure. The 10kV distribution network is positioned at the tail end of the power system, is a key link for ensuring continuous power supply, has very important reliability in the whole power supply system, and has increasingly higher requirements on the reliability of power operation along with the rapid development of national economy, the work load of live working of the distribution network is increased in an explosive manner, and the safety bearing capacity and the demand satisfaction rate face great challenges.

At present, an intermediate potential operation method of an insulating arm vehicle is widely adopted in a 10kV distribution line operation field, an operator manually completes live working tasks by using an original tool, and the operator is required to manually operate wiring, wire releasing and the like under extremely dangerous environments such as high altitude, high voltage, strong electromagnetic fields and the like, so that the labor intensity is high, the spirit is high, the personal danger is brought to the live working personnel, and the completion operation efficiency is low. Accordingly, more and more live working robots are developed in China.

In most live working robots, a process of tightening bolts is involved. In order to ensure that the tightening torque meets the process requirements, a tightening torque nut is adopted. As shown in fig. 1 and 2, the tightening-off torque nut 2' is fixedly sleeved on the bolt 1', and the tightening-off torque nut 2' includes: the screw sleeve portion 21 'and the nut portion 22' have a hollow inner tube between the screw sleeve portion 21 'having an inner hexagon and the hexagonal nut portion 22'. When a force is applied to the nut portion 22', it is simultaneously driven to the nut of the bolt 1'. As the bolt 1' is tightened gradually, the torque on the nut will become greater and the torque experienced by the hollow inner tube between the threaded shank portion 21' and the nut portion 22' will become greater. The torque of the hollow inner tube of the screw sleeve portion 21' and the nut portion 22' against brittle fracture is designed in advance, and the torque is broken only when the torque required by the tightening process is reached, so that the tightening torque of the bolt 1' can reach a safety value required in advance. After the screw sleeve portion 21 'and the nut portion 22' are broken, one portion of the screw sleeve portion 21 'remains as a fastener at the fastening portion of the bolt 1, and the other portion of the nut portion 22' is separated and then falls. Live working is often also overhead, and such falls are dangerous and not allowed by the working code. The robot collects the dropped screw-off nut portions. The collecting working process is complex, the working efficiency is greatly reduced, and the collecting working process has a small falling risk and affects the operation safety.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the anti-falling torque nut for the electrified robot, which can be self-locked on the fastening main body after being twisted off and cannot fall off, so that the anti-falling torque nut does not need to be collected.

The utility model is realized in the following way:

a drop-resistant torque nut for a live working robot, comprising: the fixed cover is located the twisting off type moment nut on the bolt, twisting off type moment nut includes: a screw sleeve portion and a nut portion,

further comprises: a sleeve member and a drop-proof housing;

the sleeve member includes: the sleeve part comprises a sleeve part body and three bulges which are arranged on the sleeve part body at intervals; the sleeve member body is used for sleeving a nut part of the twisting-off torque nut;

the anti-drop shell is cylindrical and is used for coating the twisting-off type torque nut and the sleeve part body; the anti-drop shell is close to one end of the bolt and fixedly connected with the screw sleeve part, and the other end of the anti-drop shell is provided with an inner baffle ring for blocking the sleeve part body, so that the three protrusions are exposed out of the anti-drop shell.

Further, at least three grooves are formed in the end face, close to one side of the bolt, of the screw sleeve part of the twisting-off torque nut; the anti-drop shell is close to one end side of the screw rod, and at least three protruding sheets matched with the grooves are arranged at intervals.

Further, the twisting-off torque nut, the sleeve member and the anti-drop housing are all made of aluminum alloy.

The utility model has the advantages that:

1. when the torque nut is broken, the broken nut part is not separated from the bolt main body.

2. The working procedure of screwing off the nuts is not needed after the robot is screwed up, so that the working efficiency is improved.

Drawings

The utility model will be further described with reference to the accompanying drawings, in conjunction with examples.

Fig. 1 is a schematic diagram of a prior art split bolt and nut structure.

Fig. 2 is a schematic diagram of a prior art bolt-and-nut assembled structure.

Fig. 3 is a schematic view of the explosive structure of the torque nut and bolt of the present utility model.

Detailed Description

As shown in fig. 3, a drop-proof torque nut for a live working robot includes: the twisting-off type torque nut 2 is fixedly sleeved on the bolt 1, and the twisting-off type torque nut 2 comprises: a screw sleeve portion 21 and a nut portion 22,

further comprises: a sleeve member 3 and a drop-proof housing 4;

the sleeve member 3 comprises: a sleeve member body 31 and three protrusions 32 provided on the sleeve member body 31 at intervals; the sleeve member body 31 has an inner hexagonal shape for housing the nut portion 22 of the torque nut 2; the main function of the sleeve member 3 is to transfer the nut portion 22 of the torque nut 2, and to convert the hexagonal structure into three convex structures, thereby increasing the fault tolerance of the butt joint of the screw head with three convex protrusions during operation.

The anti-drop shell 4 is cylindrical and is used for coating the screwing-off type torque nut 2 and the sleeve member 3. At least three grooves 211 are formed in the end face, close to the bolt 1, of the screw sleeve part 21 of the twisting-off torque nut 2; at least three protruding pieces 41 matched with the grooves 211 are arranged at intervals on one end side of the anti-falling shell 4 close to the screw 1, after assembly, the three protruding pieces 41 of the anti-falling shell 4 are clamped in the three grooves 211 of the screw sleeve part 21 in a clinching mode, the other end of the anti-falling shell 4 is provided with an inner baffle ring 42 for blocking the sleeve part body 31, and the three protrusions 32 are exposed out of the anti-falling shell 4.

The main function of the anti-drop housing 4 is to connect the torque nut 2 and the sleeve member 3. The three projecting pieces 41 are inserted into the three grooves 211 before the nut portion 22 is broken, and are simultaneously locked. In operation, the screw head with three protrusions extends from the tail end of the anti-drop housing 4 into the three protrusions 32 of the mating sleeve member 3, and when the screw cap portion 22 breaks under the action of the screw head, the screw cap portion 22 and the sleeve member 3 are still inside the anti-drop housing 4 and do not fall. The other end of the screw sleeve part 21 is in tight fit with the bolt 1, so that the whole device is locked with the bolt body and cannot fall down.

The twisting-off torque nut 2, the sleeve member 3 and the anti-drop housing 4 are all made of aluminum alloy.

The torque nut is not separated from the bolt main body when being broken, so that the safety is ensured, the working procedure of collecting the broken nut after the robot is screwed is not needed, and the working efficiency is improved.

The above-described embodiments and drawings are not intended to limit the form or pattern of the present utility model, and any appropriate changes or modifications may be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A drop-resistant torque nut for a live working robot, comprising: the fixed cover is located the twisting off type moment nut on the bolt, twisting off type moment nut includes: a screw sleeve portion and a nut portion;

the method is characterized in that: further comprises: a sleeve member and a drop-proof housing;

2. A drop-resistant torque nut for a live working robot as defined in claim 1, wherein: at least three grooves are formed in the end face, close to one side of the bolt, of the screw sleeve part of the twisting-off torque nut; the anti-drop shell is close to one end side of the screw rod, and at least three protruding sheets matched with the grooves are arranged at intervals.

3. A drop-resistant torque nut for a live working robot as defined in claim 1, wherein: the twisting-off type torque nut, the sleeve piece and the anti-drop shell are all made of aluminum alloy.