Background technique
The structure of high-tension cable from inside to outside: conductor, internal shield, insulating layer, external shielding layer, the band that blocks water, wrinkle aluminium
Sheath, oversheath.Metal wrinkled aluminium sheath in high-tension cable has receiving cable short circuit current, radial direction to discharge water and bear to resist
The effect of lateral pressure.
The production technology of argon arc welding aluminium sheath by fine cut, is formed, weldering using the aluminium sheet in homogeneous thickness by calendering
It connects, the process of embossing is realized.Whole process on a production line by completing.Semi-finished product cable is under the dragging of traction device
Linear velocity is obtained, while rotation shuts out screw thread to embossing knife on aluminium sheath surface.When the speed of linear velocity and the rotation of embossing knife is kept
When one constant-speed ratio, so that it may shut out the spiral lamination of continuous uniform.
The molding of aluminium sheath is to pull aluminium strip to crimp by multiple shaping moulds by traction.When shutting down every time, aluminium strip is certainly
The elasticity of body can be such that aluminium strip turns round with the traction device to run out of steam.When this results in being again started up, traction device needs elder generation
The difference turned round before making up, linear velocity can not respond starting at the first time, and graining device has first rotated, so as to cause opening
Dynamic moment, produced thread pitch can reduce.
Corrugated aluminum sheath pitch in the cable between position suddenly become smaller, the bending property of cable entirety can be made uneven,
The yield strength of partial points reduces, in the disk after cable is transferred to next process and easily appearance breakage in installation process, together
When can destroy the waterproof action of cable and the thermal stability of zero-sequence current, leave great security-hidden trouble.
Therefore cable cover(ing) surface spiral shell caused by those skilled in the art are dedicated to developing one kind and prevent synchronous pulley from turning round
The method of cable metal sheath welding embossing system and holding pitch that line pitch becomes smaller.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of synchronous belt circulations
The method of cable cover(ing) surface thread pitch becomes smaller caused by turning cable metal sheath welding embossing system and holding pitch.
To achieve the above object, the present invention provides a kind of cable metal sheaths to weld embossing system, including traction device
And graining device, the traction device include synchronous pulley, the graining device includes embossing knife, which is characterized in that the electricity
It includes: brake apparatus that cable protective metal shell, which welds embossing system, and the brake apparatus includes: ratchet, and the ratchet outer surface is in saw
Toothing, the ratchet are connect with the synchronous pulley;Pawl, one end of the pawl and the traction device carry out hingedly,
The other end is bonded with the broached-tooth design;One end of spring, the spring is arranged on the traction device, and the other end is set
It sets on the pawl.
Preferably, the ratchet is bolted with the synchronous pulley.
Preferably, the pawl has an aperture, one end of the spring passes through aperture and connect with the pawl.
Preferably, being provided with pawl base on the traction device, the pawl base and the pawl are carried out hingedly.
Preferably, the ratchet has a concentric circle holes.
Preferably, the broached-tooth design has bottom and top, the bottom and top adjacent spaces setting.
Preferably, the ratchet is made into integration with the synchronous pulley.
The present invention also provides the methods that a kind of cable metal sheath welding embossing keeps pitch, it is characterized in that: step packet
It includes:
1) open cable metal sheath weld embossing system, brake apparatus with the rotation of the synchronous pulley of traction device and
Movement;
2) when closing the cable metal sheath welding embossing system, the brake apparatus and the traction device stop
Movement, and the brake apparatus is braked immediately to prevent the synchronous pulley from turning round.
Preferably, weld embossing system using above-mentioned cable metal sheath, the brake apparatus include ratchet, pawl and
Spring, in step 1), specific steps are as follows:
It opens cable metal sheath and welds embossing system, the synchronous pulley on traction device drives ratchet to rotate together;Institute
It states broached-tooth design of the ratchet straps pawl in the ratchet outer surface and carries out fitting campaign, after making spring that there is some tension, institute
Stating pawl can move in opposite directions as the broached-tooth design rotates.
Preferably, in step 2), specific steps are as follows:
When closing cable metal sheath welding embossing system, the synchronous pulley and the ratchet stop operating and
The pawl abuts the bottom of the ratchet immediately, to prevent the synchronous pulley from turning round.
The beneficial effects of the present invention are: welding embossing system and method, system with a kind of cable metal sheath of the invention
Dynamic device can prevent cable metal sheath from welding revolution of the embossing system from synchronous pulley when being opened into closing, while can be with
Make traction device and graining device remain certain speed ratio when opening, guarantees the quality of cable.Further, when being
When system starting starts to work normally, synchronous pulley drives ratchet to rotate together, and spring keeps some tension, so that pawl is in sawtooth
Movement is bonded in structure, when closing system suddenly, the moment that synchronous pulley stops operating can reversely rotate suddenly, and pawl then can
Ratchet is resisted immediately, and synchronous pulley is prevented to be rotated backward;When being again started up system, traction device and embossing can be made
Device acts on cable simultaneously, so that traction device and graining device remain certain speed ratio, while responding in institute
It states on cable, then cable cover(ing) surface thread pitch caused by can preventing synchronous pulley from turning round becomes smaller, after cable cover(ing) embossing
The uniformity for keeping thread pitch, improves the quality of cable, meanwhile, the setting of concentric circle holes further reduced motor
Load.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
As depicted in figs. 1 and 2, a kind of cable metal sheath welds embossing system, including traction device 4 and graining device,
Traction device includes synchronous pulley 5, and graining device includes embossing knife, and cable metal sheath welding embossing system includes: braking dress
It sets, brake apparatus includes: ratchet 1, and 1 outer surface of ratchet is in broached-tooth design, and ratchet 1 is connect with synchronous pulley 5;Pawl 2, pawl 2
One end and traction device 4 carry out hingedly, the other end is bonded with broached-tooth design;One end setting of spring 3, spring 3 is being led
On leading-in device 4, the other end is arranged on pawl 2.Preferably, pawl is located at the surface in ratchet broached-tooth design face.Preferably, bullet
The center of pawl is arranged in spring.When system starting starts to work normally, synchronous pulley drives ratchet to rotate together, spring
Some tension is kept, the fitting movement so that pawl is in contact on broached-tooth design, when closing system suddenly, synchronous pulley stops
The moment of rotation can reversely rotate suddenly, and pawl can then resist ratchet immediately, and synchronous pulley is prevented to be rotated backward;When again
When activation system, traction device and graining device can be made to act on cable simultaneously, so that traction device and graining device
It remains certain speed ratio, while responding on the cables, then cable protection caused by can preventing synchronous pulley from turning round
Set surface thread pitch becomes smaller, and the uniformity of thread pitch is kept after cable cover(ing) embossing, improves the quality of cable.
In the present embodiment, the broached-tooth design has bottom and top, the bottom and top adjacent spaces setting,
So that the shuttling movement between the multiple bottoms and more tops of sawtooth mechanism of pawl 2.
Fitting mentioned in the present invention, including suit completely and be partially bonded.When pawl 2 moves to the bottom of broached-tooth design
Abutting when portion and closing system is all the bottom for fitting in broached-tooth design completely with one end of pawl, between bottom and top
It is all part fitting contact movement.In the present embodiment, ratchet 2 is arranged in parallel with synchronous pulley 5.Convenient for keeping identical speed
Than.
In the present embodiment, ratchet 1 is connect with synchronous pulley 5 by bolt 7, however without being limited thereto, ratchet 1 and synchronous pulley
5 can also be equivalent to same wheel shaft motor pattern by assembling or being made into integration to be formed, i.e. the rotation of ratchet 1 and synchronous pulley 5 is transported
Dynamic speed, direction state are identical.Ratchet 1 is connect with synchronous pulley 5 by being uniformly distributed six bolts 7.When synchronous pulley 5 occurs
When reversed turning, pawl 2 abuts the bottom of the broached-tooth design of synchronous pulley 5 immediately, prevents synchronous pulley reversed turning.Into one
Step, ratchet 1 and pawl 2 are metal material, such as: iron, steel or alloy etc. are not limited thereto.
In the present embodiment, the pawl 2 has an aperture, and one end of the spring 3 passes through aperture and connect with the pawl.
Preferably, the aperture is located at the center of pawl 2, it is more advantageous to the flexible movement with pawl 2 of spring 3, keeps pawl 2 clever
Movement living reduces the influence that the movement of pawl 2 moves ratchet 1.
In the present embodiment, pawl base 6 is provided on the traction device 4, the pawl base 6 is cut with scissors with the pawl 2
It connects, so that pawl 2 more has flexibility when moving.
In the present embodiment, the ratchet 1 has a concentric circle holes, is to mitigate the weight of ratchet 1, saves material.
The embodiment of the invention discloses the methods that a kind of cable metal sheath welding embossing keeps pitch, it is characterized in that: step
Suddenly include:
1) open cable metal sheath weld embossing system, brake apparatus with the rotation of the synchronous pulley of traction device and
Movement;
2) when closing the cable metal sheath welding embossing system, the brake apparatus and the traction device stop
Movement, and the brake apparatus is braked immediately to prevent the synchronous pulley from turning round.
In the present embodiment, embossing system is welded using above-mentioned cable metal sheath, is not repeated them here secondary, the system
Dynamic device includes ratchet 1, pawl 2 and spring 3, in step 1), specific steps are as follows: open cable metal sheath and weld embossing system
It unites, the synchronous pulley 5 on traction device 4 drives ratchet 1 to rotate together;The ratchet 1 is with pawl 2 in 1 appearance of ratchet
The broached-tooth design in face carries out fitting campaign, and after so that spring 3 is had some tension, the pawl 2 can turn with the broached-tooth design
It is dynamic to move in opposite directions;
In the present embodiment, in step 2), specific steps are as follows: weld embossing system when closing the cable metal sheath
When, the synchronous pulley 5 and the ratchet 1 stop operating and the pawl 2 abuts the bottom of the ratchet 1 immediately, to prevent
The synchronous pulley 5 turns round.
When system starting starts to work normally, synchronous pulley drives ratchet to rotate together, and spring keeps some tension, makes
It obtains pawl and is bonded movement on broached-tooth design, when closing system suddenly, the moment that synchronous pulley stops operating can be reversed suddenly
Rotation, pawl can then resist ratchet immediately, and synchronous pulley is prevented to be rotated backward.
In the present embodiment, in step 1), comprising steps of graining device and traction device 4 start simultaneously at work, drawing
For device 4 under the tractive force of cable, the embossing knife of the graining device carries out rotation embossing on cable cover(ing) surface.
In the present embodiment, after step 2), further comprises the steps of: to work as and restart the cable metal sheath welding embossing system
When, the traction device 4 starts simultaneously at work with the graining device.Traction device can be made to act on simultaneously with graining device
In on cable, so that traction device and graining device remain certain speed ratio, while responding on the cables, then may be used
Become smaller with preventing synchronous pulley from turning round caused cable cover(ing) surface thread pitch, thread pitch is kept after cable cover(ing) embossing
Uniformity improves the quality of cable.
Embossing system and method is welded with a kind of cable metal sheath of the invention, brake apparatus can prevent cable golden
Belong to sheath and weld revolution of the embossing system from synchronous pulley when being opened into closing, while traction device can also be made when opening
Certain speed ratio is remained with graining device, guarantees the quality of cable.Further, when system starting starts to work normally
When, synchronous pulley drives ratchet to rotate together, and spring keeps some tension, so that pawl is bonded movement on broached-tooth design, when
When closing system suddenly, the moment that synchronous pulley stops operating can reversely rotate suddenly, and pawl can then resist ratchet immediately, prevent
Synchronous pulley is rotated backward;When being again started up system, traction device and graining device can be made to act on electricity simultaneously
It, then can be to prevent so that traction device and graining device remain certain speed ratio, while responding on the cables on cable
Cable cover(ing) surface thread pitch caused by only synchronous pulley turns round becomes smaller, and the uniform of thread pitch is kept after cable cover(ing) embossing
Property, the quality of cable is improved, meanwhile, the setting of concentric circle holes further reduced the load of motor.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.