CN2290426Y - Differential transmission gear for cold rolling concrete iron - Google Patents
Differential transmission gear for cold rolling concrete iron Download PDFInfo
- Publication number
- CN2290426Y CN2290426Y CN 97208216 CN97208216U CN2290426Y CN 2290426 Y CN2290426 Y CN 2290426Y CN 97208216 CN97208216 CN 97208216 CN 97208216 U CN97208216 U CN 97208216U CN 2290426 Y CN2290426 Y CN 2290426Y
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- CN
- China
- Prior art keywords
- gear
- differential
- differential mechanism
- cold rolling
- axle shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a power transmission device for cold rolled steel bars. By that an inner planet gear (5) of a differential mechanism and axle shaft gears (6) mutually cooperate, motive power generated by a shunting transmission electric machine (12) respectively drives drawing drums (8) serially. In the process of cold rolling, when unequal tension forces appear on each segment of wire stock (10), the change information of the tension forces of the wire stock is fed back in reverse direction to the differential mechanism which operates along with a driven bevel gear (2), and autorotation generated by the planet gear (5) causes that the operating modes of the two axle shaft gears (6) engaged with the planet gear are changed from isodromic operation into differential operation by that the two axle shaft gears (6) are accelerated and decelerated opposite to each other, and velocity matching between each drum (8) and the coiling wire stock (10) is automatically completed, so the orderly automatic control of the cold rolling of steel bars is realized.
Description
The utility model relates to a kind of steel bar cold rolling power transmission, especially differential shunting transfer device.
At present, in the passive cold rolling reinforcing bar was produced, armature wire was dragged by drawing block
。Many wire drawing machinees and many milling trains are used, realize armature wire continuously, multi-pass is cold rolling.Wire rod is rolling by tube reducing and extension by roll.This speed that just requires the front and back drawing block to batch wire rod can be complementary with the tension force that does not wait.Otherwise,, cause long-pending line or broken string in the production process because each section of wire rod tension force is in different size.Based on there being above-mentioned technical barrier, it is excessive to require the difference in size of mother metal tube reducing not declare, and mill speed can not be too high.The height of production efficiency depends on that drawing block batches the speed of wire rod.Speed is fast more, and production efficiency is high more.But reach this requirement, most critical be to solve the problem that each drawing block rotating speed and the linear speed that batches the wire rod by mill milling mate mutually.And this requirement does not also realize synchronous automatic control in the prior art.
In the prior art, mate this technical barrier in order to solve linear speed, the employing that has exchanges between transmission and frame and drives wire rod with the pulley kink.Realize the coupling of wire rod speed between frame to a certain extent.But owing to the distortion of the wire rod between two milling trains tension force is difficult for unanimity synchronously, speed of production still is restricted, and only is 1.5～3m/s generally, otherwise causes the fault of amassing line or broken string easily.Simultaneously, owing to used the pulley kink, aggravated the reinforcing bar excessive distortion, wire rod is in the operation of rolling, and additional deformation increases, and product extends and reduces the wire quality instability; The speed adjustable DC motor that also adopts in production technology that has drives and regulates with position sensor feedback between frame, and the power that parts a little that keeps each section of armature wire is in the hope of realizing the linear speed coupling between frame.This makes in the operation of rolling tension force of wire rod between two milling trains can obtain balance adjustment to a certain degree.The problem of wire velocity coupling is further solved, and mill speed has also been brought up to 6m/s.The adaptability of operation also is enhanced to some extent, and product quality is more stable.But, owing to be provided with baroque sensor and electric cabinet, increased many corollary equipments, make the cost of a whole set of rolling equipment improve a lot.In addition, used the Automatic Control that can't realize speeds match behind this sensor fully, also needed the operator, handled the automatically controlled row that twists in time and regulate according to the concrete condition that occurs in the production process.So both increase the labour intensity that the operator concentrates one's energy to observe strain, and also required the operator to have higher technical quality.
The purpose of this utility model is to provide a kind of and regulates the power transmission of drawing block rotating speed automatically with the variation of wire tension, to realize that in the steel bar cold rolling technology, the speed that section is batched before and after the wire rod is complementary, and has avoided long-pending line or the broken string in the operation of rolling.
In order to achieve the above object, the utility model has adopted planetary gear type differential mechanism power transmission.Transmit the power that produces from motor and drag parent material of reinforcement rebar by the differential mechanism shunting.Differential mechanism is made up of planetary gear, planet pin, axle shaft gear, differential casing.Differential casing is divided into left and right sides two halves, adopts bolt and involuntary speed reduction bevel gear to be fixed into an integral body.About journal outer end on the cross planet pin is embedded in respectively in the formed hole of the corresponding half slot of two and half housing end faces.The planetary gear that empty boasting on four axle journals with about two axle shaft gears be meshed.The power that motor produces is by the bevel gear of initiatively slowing down, and the involuntary speed reduction bevel gear is delivered to differential mechanism, and when differential casing rotated, planetary gear around the side gear shaft revolution, passed to power respectively left and right sides two-semiaxle gear thereupon simultaneously.Pass to drawing block successively at last after continuing power passed to drawing block or next stage differential mechanism respectively by the bevel gear of left and right sides two-semiaxle by the outer end again.Each drawing block spurs parent material of reinforcement rebar and begins rolling under differential controls.In the operation of rolling, turn round resistance when identical when what each reel was passed to left and right sides semiaxis, the stressed unanimity of planetary gear the right and left, planetary gear then drives left and right sides two-semiaxle gear simultaneously and revolves round the sun around side gear shaft, and this moment, the drawing block constant speed was batched wire rod; Difference appears in the suffered resistance of two-semiaxle gear when the left and right sides, resistance difference between the two-semiaxle gear to planetary gear produce one this increase the torsional moment that subtracts, make planetary gear in the side gear shaft revolution, also under the effect of torsional moment, form differential thereby the two-semiaxle gear is increased and decreased by mutual equivalent by original same rotational speed around an amount of rotation of self axle beginning.In the operation of rolling, when wire rod by tube reducing and extend make before and after wire tension when not waiting, drawing block is the timely reverse feedback of accepting to change from wire tension of information, the speed that the automatic differential regulation and control by this device realize and the front and back section is batched wire rod is complementary.
After adopting this differential driver, the pulling force of drawing block passes over by after the differential mechanism shunting, and its reverse differential mechanism that feeds back to of information of again wire tension being changed is simultaneously finished automatic adjusting to the drawing block rotating speed automatically by differential mechanism.Wire rod in the operation of rolling before and after each road tube reducing and extend make when each section tension force is different before and after the wire rod, drawing block suffered resistance in batching the process of wire rod is also different before and after showing.Drawing block and the speed self-controlled coupling of batching between the wire rod before and after realizing by differential mechanism eliminated the long-pending line in the operation of rolling and the hidden danger of broken string, thereby the hauling speed of the relieved further raising drawing block of energy double the production efficiency of cold-rolling equipment.
Below in conjunction with accompanying drawing and concrete enforcement the utility model is described in further detail:
Fig. 1 is the utility model planetary gear type differential mechanism decomposition chart.
Fig. 2 is the artwork of an embodiment of the utility model.
Differential mechanism shown in Figure 1 by driving shaft (7), the bevel gear (1) of slowing down initiatively, involuntary speed reduction bevel gear (2), differential casing (3), planet tooth axle (4), planetary gear (5), axle shaft gear (6) is formed.The bevel gear (1) of initiatively slowing down is meshed with involuntary speed reduction bevel gear (2), involuntary speed reduction bevel gear (2) is connected as a single entity with differential casing (3), empty boasting is on cross planet pin (4) respectively for four planetary gears (5), and axle shaft gear (6) is meshed with planetary gear (5).Planet pin (4) is embedded in the corresponding circular groove of differential casing (3).During driving shaft (7) outputting power, drive driven gear (2) successively, differential casing (3), planetary gear (5), axle shaft gear (6) rotates around side gear shaft.In the operation of rolling, when left and right sides two-semiaxle gear (6) was subjected to resistance identical, planetary gear (5) played the effect of balanced lever, and left and right sides two-semiaxle gear (6) can only revolve round the sun around side gear shaft with planet gear (5).When the suffered resistance of left and right sides two-semiaxle gear (6) not simultaneously, planetary gear (5) the right and left is stressed unequal, the resistance difference of two-semiaxle gear (6) acts on the planetary gear (5), make planetary gear (5) produce a torsional moment, at this moment, planetary gear (5) is same right what revolve round the sun around side gear shaft, also around himself the axle (4) rotation, make two-semiaxle gear (6) rotating speed make mutual equivalent increase and decrease and formation differential, realized with the different velocity of rotation processes of coupling automatically of carrying out of its suffered resistance.
Shown in Figure 2 is the artwork that the related differential driver of the utility model is used for passive cold rolled reinforcing bar, the power that motor (12) is produced is through one-level driving shaft (7), active reduction gearing (1), involuntary speed reduction gear (2), pass to left and right sides two-semiaxle gear (6) by planetary gear (5) shunting after being input to the one-level differential mechanism, and power is passed to secondary drive axle (7) back input secondary differential mechanism respectively by semiaxis end tooth wheel (11).Same two secondary differential mechanisms then pass to dynamic branch four drawing blocks (8) respectively.The while shunting dragged armature wire (10) after four backguy reels (8) received the power that passes over, and had realized that armature wire (10) is by milling train (9) continuous cold rolling process.Armature wire (10) pursues in the process of road rolling at process milling train (9) and is also extended by tube reducing, but the inconsistent situation of tension force does not appear in each section unavoidably before and after the wire rod (10).At this moment, the drawing block (8) that is distributed in each section of wire rod (10) is with the feedback information of tension variation during to differential mechanism at different levels, differential mechanism realizes that finally the speed that each drawing block (8) batches wire rod (10) is complementary automatically by planetary gear (5) certainly then impel the rotating speed of two-semiaxle gear (6) to do the equivalent increase and decrease.Kept the stable equilibrium of each section tension force completely, stopped long-pending line and broken string, thereby realized running up of automatic control tandem rolling smoothly.
The roll that the differential driver that the utility model relates to also can be used in the active steel bar cold rolling production technology drives; transmission device can adopt the single-stage differential mechanism also can be used by multistage differential mechanism, and these conversion all drop within the utility model protection domain.
The specification digest accompanying drawing is selected Figure of description 2 for use.
Claims (4)
1, a kind of cold rolled reinforcing bar differential transfer device is characterized in that this device is that the planetary gear type differential mechanism is installed between power source and load.
2, cold rolled reinforcing bar differential transfer device according to claim 1 is characterized in that the driving gear of differential mechanism is connected with power source.
3, reinforcing bar differential transfer device according to claim 1, the two-semiaxle outer end that it is characterized in that differential mechanism is equipped with gear and is meshed with next stage differential mechanism axle shaft gear, or is meshed with the mainshaft gear of reinforcing bar drive unit.
4, cold rolled reinforcing bar differential transfer device according to claim 1 is characterized in that differential mechanism can be a single-stage, also can be multistage being used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208216 CN2290426Y (en) | 1997-03-25 | 1997-03-25 | Differential transmission gear for cold rolling concrete iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97208216 CN2290426Y (en) | 1997-03-25 | 1997-03-25 | Differential transmission gear for cold rolling concrete iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2290426Y true CN2290426Y (en) | 1998-09-09 |
Family
ID=33927713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97208216 Expired - Fee Related CN2290426Y (en) | 1997-03-25 | 1997-03-25 | Differential transmission gear for cold rolling concrete iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2290426Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695716B (en) * | 2009-10-27 | 2011-08-10 | 夏仁和 | Group drive system for metal axial continuous mill |
| CN103920567A (en) * | 2014-04-15 | 2014-07-16 | 永仁盛源钛业有限公司 | Wear-resisting low-consumption ball mill |
| CN109665372A (en) * | 2019-02-01 | 2019-04-23 | 北京惠尔美特科技有限公司 | A kind of differential linkage type spiral driving device |
-
1997
- 1997-03-25 CN CN 97208216 patent/CN2290426Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695716B (en) * | 2009-10-27 | 2011-08-10 | 夏仁和 | Group drive system for metal axial continuous mill |
| CN103920567A (en) * | 2014-04-15 | 2014-07-16 | 永仁盛源钛业有限公司 | Wear-resisting low-consumption ball mill |
| CN109665372A (en) * | 2019-02-01 | 2019-04-23 | 北京惠尔美特科技有限公司 | A kind of differential linkage type spiral driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |