CN201366443Y

CN201366443Y - Constant tension adjusting device

Info

Publication number: CN201366443Y
Application number: CNU200920088959XU
Authority: CN
Inventors: 姚宏伟
Original assignee: Sinosteel Zhengzhou Research Institute of Steel Wire Products Co Ltd
Current assignee: Sinosteel Zhengzhou Research Institute of Steel Wire Products Co Ltd
Priority date: 2009-03-20
Filing date: 2009-03-20
Publication date: 2009-12-23
Anticipated expiration: 2019-03-20

Abstract

The utility model provides a constant tension adjusting device, which comprises a frame body, a guide upright column vertically arranged inside the frame body, a fixed wheel assembly mounted at the top of the frame body in a way that the axial line of the wheel shaft of the fixed wheel assembly is perpendicular to the guide upright column, a moving wheel assembly mounted on the guide upright column through guide members in a way that the axial line of the wheel shaft of the moving wheel assembly is perpendicular to the guide upright column and capable of moving up and down along the guide upright column, an upper spring and a lower spring sleeved on the guide upright column, and an upper chain wheel assembly and a lower chain wheel assembly arranged on the other side of the frame body, wherein the upper spring is positioned above the guide members of the moving wheel assembly; the lower spring is positioned below the guide members of the moving wheel assembly; both the fixed wheel assembly and the moving wheel assembly are positioned on the same side of the frame body; the lower chain wheel assembly has the structure of two coaxial chain wheels; and one chain wheel in the lower chain wheel assembly is connected with the upper chain wheel assembly through chains and the other chain wheel is bonded to a driving chain wheel in a towing wire rope driving mechanism with a turnbuckle. The other end of the wheel shaft of the moving wheel assembly (5) is bonded to the chain that is connected between the upper and the lower chain wheel assemblies.

Description

A kind of permanent tension-adjusting gear

Technical field

The utility model relates to metal filament production technology, relate to a kind of being used for specifically in I-beam wheel unwrapping wire process, can guarantee that production line moves stably, detection failure more accurately, and can when production line breaks down, guarantee in time to stop, also can guarantee random line does not take place simultaneously and the permanent tension-adjusting gear that influences ordinary production.

Background technology

At present, known I-beam wheel unwrapping wire adopts the torque motor unwrapping wire mostly, but the torque motor unwrapping wire has following some problem: 1, the torque motor unwrapping wire is subjected to the limitation of torque motor design itself when scram, is easy to cause random line; 2, the controller of torque motor often breaks down easily, influences ordinary production; 3, the cost of torque motor unwrapping wire is too high.

Summary of the invention

The purpose of this utility model is the random line in order to overcome existing torque motor unwrapping wire and can not well to solve the production line scram and the too high problem of cost and a kind of permanent tension-adjusting gear is provided just.Permanent tension-adjusting gear of the present utility model not only can guarantee to keep permanent tension force in the production process, and the while, can in time stop when breaking down at production line; And this actinobacillus device does not need consumed power, can reduce production costs for the user.

The purpose of this utility model can realize by following technique measures:

Permanent tension-adjusting gear of the present utility model comprises Rack Body, vertically be arranged on the guide upright post in the Rack Body, be installed in the fixed wheel group at Rack Body top in the perpendicular mode of its axle axis and guide upright post, and be installed on the guide upright post by guide and can be along the driving wheel group of guide upright post do the upper and lower displacement campaign in the perpendicular mode of its axle axis and guide upright post, on guide upright post, be set with the two sections spring, wherein the upper spring section is positioned at the top of driving wheel group guide, and the lower spring section is positioned at the below of driving wheel group guide; Described fixed wheel group and driving wheel group all are positioned at the homonymy of Rack Body, opposite side at Rack Body is provided with upper and lower chain wheel set, wherein the lower sprocket group is coaxial double-stranded wheel construction, a sprocket wheel in the lower sprocket group links to each other with the cochain wheels by chain, and another sprocket wheel combines by the drive sprocket in the haulage cable driving mechanism of chain and wounded in the battle basket bolt; The wheel shaft other end of described driving wheel group combines with the chain that is connected between upper and lower chain wheel set.

The utility model is installed travel switch in the limit inferior position of driving wheel group.

Operation principle of the present utility model is as follows:

At first the haulage cable by wounded in the battle basket bolt links together the utility model and paying out machine, and the degree of tightness of this haulage cable can be regulated by flower basket bolt.The driving wheel group is parked in a middle equilbrium position of constant tension device when ordinary production in theory, if the speed of take-up part increases, the tension force of line is also along with increase at this moment, the driving wheel group is also made displacement movement upwards along lead thereupon, and clockwise rotate by the chain drive sprocket wheel group that is attached thereto, and then drive haulage cable driving mechanism rotates, make the extension elongation lengthening (promptly unclamping a part) of haulage cable, because reducing of frictional force, paying out machine is realized quickening under the traction of institute's unwrapping wire silk, and its speed is till realization and take-up are synchronous; If the speed of take-up part diminishes, this moment, the tension force of line diminished, the driving wheel group is also made downward displacement movement along lead thereupon, and rotate counterclockwise by the chain drive sprocket wheel group that is attached thereto, and then drive the rotation of haulage cable driving mechanism, make the extension elongation of haulage cable shorten (promptly tightening up a part), because the increase of frictional force, paying out machine reduces speed now, and it is synchronous with take-up speed that its speed is reduced to always; In process of production, if institute's unwrapping wire silk disconnects suddenly, tension force on the driving wheel group is complete obiteration at this moment, the driving wheel group glides fast, when sliding into the position of travel switch under the driving wheel group, after travel switch collects signal, signal is transferred to controlling organization, can realize that just the whole production line production line stops in emergency.

The beneficial effects of the utility model are, can well solve the random line situation that the I-beam wheel unwrapping wire causes and reduce cost when stopping in emergency.

Description of drawings

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

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the vertical view of Fig. 1.

Sequence number in the accompanying drawing: the 1. haulage cable of wounded in the battle basket bolt, 2. sprocket wheel and chain group, 3. travel switch, 4. lower spring section, 5. driving wheel group, 6. guide (linear bearing), 7. upper spring section, 8. chain, 9. fixed wheel group

The specific embodiment

The utility model is described further below with reference to embodiment (accompanying drawing):

As Fig. 1, Fig. 2, shown in Figure 3, permanent tension-adjusting gear of the present utility model comprises Rack Body, vertically be arranged on the guide upright post in the Rack Body, be installed in the fixed wheel group 9 at Rack Body top in the perpendicular mode of its axle axis and guide upright post, and be installed on the guide upright post by guide and can be along the driving wheel group 5 of guide upright post do the upper and lower displacement campaign in the perpendicular mode of its axle axis and guide upright post, on guide upright post, be set with the two sections spring, wherein upper spring section 7 is positioned at the top of driving wheel group guide, and lower spring section 4 is positioned at the below of driving wheel group guide; Described fixed wheel group 9 and driving wheel group 5 all are positioned at the homonymy of Rack Body, opposite side at Rack Body is provided with upper and lower chain wheel set, wherein the lower sprocket group is coaxial double-stranded wheel construction, a sprocket wheel in the lower sprocket group links to each other with the cochain wheels by chain, and another sprocket wheel combines by the drive sprocket in the haulage cable driving mechanism of chain and wounded in the battle basket bolt; The wheel shaft other end of described driving wheel group 5 combines with the chain 8 that is connected between upper and lower chain wheel set; The utility model is installed travel switch 3 in the limit inferior position of driving wheel group.

Claims

1, a kind of permanent tension-adjusting gear, it is characterized in that: it comprises Rack Body, vertically be arranged on the guide upright post in the Rack Body, be installed in the fixed wheel group (9) at Rack Body top in the perpendicular mode of its axle axis and guide upright post, and be installed on the guide upright post by guide and can be along the driving wheel group (5) of guide upright post do the upper and lower displacement campaign in the perpendicular mode of its axle axis and guide upright post, on guide upright post, be set with the two sections spring, wherein upper spring section (7) is positioned at the top of driving wheel group guide, and lower spring section (4) is positioned at the below of driving wheel group guide; Described fixed wheel group (9) and driving wheel group (5) all are positioned at the homonymy of Rack Body, opposite side at Rack Body is provided with upper and lower chain wheel set, wherein the lower sprocket group is coaxial double-stranded wheel construction, a sprocket wheel in the lower sprocket group links to each other with the cochain wheels by chain, and another sprocket wheel combines by the drive sprocket in the haulage cable driving mechanism of chain and wounded in the battle basket bolt; The wheel shaft other end of described driving wheel group (5) combines with the chain (8) that is connected between upper and lower chain wheel set.

2, permanent tension-adjusting gear according to claim 1 is characterized in that: travel switch (3) is installed in the limit inferior position in the driving wheel group.