CN102275004A - Main transmission mechanism of slitting shear - Google Patents
Main transmission mechanism of slitting shear Download PDFInfo
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- CN102275004A CN102275004A CN 201110183018 CN201110183018A CN102275004A CN 102275004 A CN102275004 A CN 102275004A CN 201110183018 CN201110183018 CN 201110183018 CN 201110183018 A CN201110183018 A CN 201110183018A CN 102275004 A CN102275004 A CN 102275004A
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Abstract
The invention relates to a main transmission mechanism of a slitting shear. The main transmission mechanism mainly comprises a main motor, a main transmission gear box, a front panel and an eccentric shaft. Gears in the main transmission gear box are all hardened gears. The upper box body and the lower box body of the main transmission gear box which are located on the side of the eccentric shaft are fixedly connected to each other by a hydraulic nut. A corresponding key groove is formed between the joint surfaces of the main transmission gear box and the front panel and the frame; and the main transmission gear box and the front panel are positioned on the frame through positioning keys and both fixed by a double end stud. A lubricating oil path is formed on the axis of the eccentric shaft. Lubricating oil enters the lubricating oil path via a rotary oil path joint so as to reach the upper tool rest of the slitting shear and to forcibly lubricate the same.
Description
Technical field
The subdivision that the present invention relates in the steel rolling field is cut main drive gear, relate in particular to a kind of on the Wide and Thick Slab finishing equipment employed subdivision cut main transmission gearbox.
Background technology
From domestic and international heavy and medium plate mill production practices of having gone into operation as can be seen, the production capacity of milling train and potentiality are very big, therefore its weak link for improving the quality and the production efficiency of sheet material, has adopted subdivision to cut on the Heavy Plate Production line often at finishing procedure more and more.
Subdivision is cut and is mainly used in the vertical subdivision of wide rolling steel plate doubly, also can carry out subdivision, promptly asymmetric subdivision for the steel plate of different in width.By subdivision, can make mill milling steel plate doubly wide or combined width improve rolling mill yield.
The chief component that subdivision is cut comprises: the Traverse Displacement Unit of frame, main drive gear, knife rest and cutting edge fixture, blade clearance and coincidence amount adjusting apparatus, retraction mechanism, hold down gag, shearing machine, pinch roll etc.Shear ability that subdivision is cut and operating efficiency are mainly determined that by bearing capacity, the kind of drive and the precision of main drive gear main drive gear is made up of main motor, main transmission gearbox.Main motor is installed on the platform of upper rack, is provided with the effect that overload-release clutch plays overload protection between main motor and the main transmission gearbox.
In existing main drive gear, the flank of tooth of each gear in the main transmission gearbox all is to adopt middle hard gear-face, and bearing capacity is little; Because the casing of traditional main transmission gearbox adopts general bolt to connect, and the stressed complexity of eccentric shaft in the main drive gear, very easily cause bolt looseness, in addition, main transmission gearbox and front panel all provide finger setting, poor stability, these are difficult to satisfy the anti-vibration requirement that subdivision is cut, and the precision that causes subdivision to be cut in the work is difficult to up to standard; In traditional subdivision was cut, the lubricating system of upper tool post was to be provided by the hydraulic hose that is suspended on the upper tool post, very easily damaged, and in a single day hydraulic hose damages, and lubricating oil will splash arbitrarily, and not only loss is bigger, and can pollute working environment.Therefore, how to make main drive gear have more loading capability, the while good stability of Gao Cheng, lubricating oil pollutes little main drive gear to working environment has become the focus that people pay close attention to.
Summary of the invention
The objective of the invention is to, at low, the poor stability of gear-box bearing capacity that exists, to a series of problems such as the lubricating system of upper tool post are unreasonable, provide a kind of new subdivision to cut main drive gear during subdivision is cut at existing main drive gear.
The objective of the invention is to be to realize: a kind of subdivision is cut main drive gear, comprise main motor, main transmission gearbox, front panel and eccentric shaft, be provided with overload-release clutch between main motor and the main transmission gearbox input, main motor, main transmission gearbox, front panel are fixedly mounted on the frame, eccentric shaft, is characterized in that between main transmission casing and front panel by bearings: the gear in the main transmission gearbox all adopts the hard flank of tooth; Fixedly connected by hydraulic nut between the upper box of eccentric shaft side and lower box at main transmission gearbox; Be provided with corresponding keyway between described main transmission gearbox and front panel and the frame faying face, main transmission gearbox and front panel be by positioning key and frame location, and by studs they are fixed; The axle center of eccentric shaft is provided with oil leab, and lubricating oil enters oil leab by swivel joint, makes lubricating oil arrive at the upper tool post that subdivision is cut, to its forced feed lubrication; The concrete structure of main drive gear is:
A) casing of main transmission gearbox comprises upper box, lower box and case lid, and described case lid, upper box and lower box are bolted to connection successively, and the input of casing is provided with cover plate, and front panel is positioned at the other end of casing;
B) input of main transmission gearbox is provided with two input gear shafts, and two independently main motors pass through independently overload-release clutch and corresponding input gear shaft connection respectively;
C) reducing gear in the main transmission gearbox is the structure of pairing stream input double split flow output, that is: reducing gear is provided with two parallel input gear shafts, two input gear shafts simultaneously with first order gear shaft on the engagement of first order gear wheel; Second level gear wheel engagement on the pinion of first order gear shaft and the second level gear shaft; Two output gear wheels are fixedly mounted on respectively on two output shafts, the pinion of second level gear shaft simultaneously with two output shafts on the engagement of output gear wheel; Each gear in the reducing gear all adopts the hard flank of tooth;
D) contain one section eccentric shaft on the output shaft, described one section eccentric shaft is between casing and front panel, output shaft passes through the bearings of three strong points in casing and front panel, and the offset of one section eccentric shaft is greater than the offset of one section eccentric shaft in another output shaft in one of them output shaft; Position of eccentric is corresponding with the upper tool post that subdivision is cut;
E) output of two output shafts is provided with cam respectively, and the below of cam is the swinging mounting of withdrawing controlling organization, and two cams are against the two ends of swinging mounting respectively, and the withdrawing bar is equipped with in the below of swinging mounting one end.
In the present invention: the drive mechanism of the output gear wheel engagement on the pinion of second level gear shaft and two output shafts is " ∧ " type structure; Output shaft is fixed in casing and front panel by three self-aligning roller bearings, and the self-aligning roller bearing that wherein is arranged in the front panel strong point is the conical bore self-aligning roller bearing.
In the present invention: casing and front panel adopt studs and flat key and frame stationary positioned.
In the present invention: cam and output shaft connect by expansion coupling sleeve, and the two ends of swinging mounting are provided with and roll ring in the withdrawing controlling organization, and described two cams are against rolling on the ring of swinging mounting two ends respectively.
In the present invention: each the bearings point in the main transmission gearbox is by oil pump and oil duct forced feed lubrication.
The invention has the advantages that: because main transmission gearbox version is pairing stream input double split flow output, the input of pairing stream makes the first reduction gear wheel more reasonable stress, and the drive mechanism of double split flow output is " ∧ " type, compact conformation; Because power source adopts the main motor of two platform independent, under the situation of equal power output, alleviated the volume and weight of a main motor greatly, make easier for installation; Because the gear in the main transmission gearbox all adopts the hard flank of tooth, can improve the bearing capacity of main drive gear; Because it is fixedly connected by two cover hydraulic nuts between the upper box of eccentric shaft side and lower box at main transmission gearbox, be provided with corresponding keyway between described main transmission gearbox and front panel and the frame faying face, main transmission gearbox and front panel are by key and frame location, and they are fixed by studs, these measures can prevent the upper box that causes because of vibrations in the work and the displacement of the separation between the lower box and main transmission gearbox and front panel, guarantee the operating accuracy that main drive gear working stability and subdivision are cut; Because changed the lubricant passage way that subdivision is cut upper tool post, the risk that the lubricating oil that not only reduces pollutes working environment also reduced the loss of lubricating oil.
Description of drawings
Fig. 1 is a transmission mechanism principle schematic of the present invention;
Fig. 2 is along the input gear shaft of embodiment and the first order gear shaft level structural representation to subdivision;
Fig. 3 is the structural representation along the perpendicular bisector subdivision of embodiment;
Fig. 4 is the schematic diagram that the cam on the output shaft cooperates with the swinging mounting of withdrawing controlling organization among the embodiment;
Fig. 5 is the pinion of second level gear shaft among the embodiment and " ∧ " type drive mechanism schematic diagram between the output gear wheel on two output shafts;
Fig. 6 is the lubricant oil road structure schematic diagram of eccentric shaft part in the middle output shaft of embodiment;
Fig. 7 is the schematic diagram of main transmission gearbox and front panel and frame connected mode among the embodiment.
Among the figure: 1, the input gear shaft, 2, rolling bearing, 3, first order gear wheel, 4, safety coupling, 5, first order gear shaft, 6, motor, 7, cam (right side), 8, positioning key, 9, output gear wheel (right side), 10, self-aligning roller bearing, 11, the conical bore self-aligning roller bearing, 12, eccentric shaft (left side), 13, positioning key, 14, hydraulic nut, 15, cam (left side), 16, cover plate, 17, positioning key, 18, positioning key, 19, second level gear wheel, 20, studs, 21, second level gear shaft, 22, case lid, 23, oil leab, 24, upper box, 25, front panel, 26, bearing block, 27, lower box, 28, the withdrawing controlling organization, 29, positioning key, 30, expansion coupling sleeve, 31, roll ring, 32, swinging mounting, 33, the withdrawing bar, 34, swivel joint, 35, output gear wheel (left side), 36, eccentric shaft (right side), 37, sliding bearing.
The specific embodiment
Accompanying drawing discloses the concrete structure of the embodiment of the invention without limitation, below in conjunction with accompanying drawing the present invention is done to describe further.
As seen from Figure 1, the reducing gear in the main transmission gearbox is the structure of pairing stream input double split flow output, reducing gear be provided with 1, two input of two parallel input gear shafts gear shaft 1 simultaneously with first order gear shaft 5 on 3 engagements of first order gear wheel; Second level gear wheel 19 engagements on the pinion of first order gear shaft 5 and the second level gear shaft 21; Two output gear wheels are fixedly mounted on respectively on two output shafts, the pinion of second level gear shaft 21 simultaneously with about output gear wheel (left side) 35 and output gear wheel (right side) 9 engagements on two output shafts; Contain one section eccentric shaft (left side) 12 on the output shaft of left side, contain one section eccentric shaft (right side) 36 on the output shaft of right side, described one section eccentric shaft is between casing and front panel, two output shafts pass through the bearings of three strong points in casing and front panel 25, wherein, left and right sides eccentric shaft is between casing and front panel 25, in the eccentric shaft of the left and right sides, the offset of an eccentric shaft should be greater than the offset of another eccentric shaft, for example, in the present embodiment, the offset of eccentric shaft (left side) 12 is 140mm, and the offset of eccentric shaft (right side) 36 is 55mm.The output of two output shafts is provided with cam (left side) 15 or cam (right side) 7 respectively, and the below of cam is the swinging mounting 32 of withdrawing controlling organization, and left and right sides cam is against the two ends of swinging mounting 32 respectively.
During concrete enforcement, two independently main motors pass through independently overload-release clutch and corresponding input gear shaft connection respectively.
As seen from Figure 2, input gear shaft 1, first order gear shaft 5 are supported in the casing by rolling bearing 2, contain one section eccentric shaft on the output shaft, described one section eccentric shaft is between casing and front panel 25, output shaft is supported in casing and front panel 25 by two self-aligning roller bearings 10 and a conical bore self-aligning roller bearing 11, wherein two of self-aligning roller bearing 10 strong points are positioned at casing, and a strong point of conical bore self-aligning roller bearing 11 is positioned at front panel 25.
Fixedly connected by hydraulic nut 14 between the upper box of eccentric shaft side and lower box at main transmission gearbox in the present embodiment.
As seen from Figure 3, casing comprises upper box 24, lower box 27 and case lid 22, and described case lid 22, upper box 24 and lower box 27 are bolted to connection successively, and the input of casing is provided with cover plate 16, and front panel 25 is positioned at the other end of casing; Second level gear shaft 21 is supported in the casing by rolling bearing 2, second level gear wheel 19 engagements in the pinion of first order gear shaft 5 and the second level gear shaft 21, in the present embodiment, two strong point bearing blocks 26 of self-aligning roller bearing 10 are to adopt positioning key 29(to see Fig. 2 between 26, two bearing blocks 26 of two-piece type cast-in-block bearing block) location.Withdrawing controlling organization 28 is arranged in the below of left and right sides cam (figure is blocked by first order gear shaft 5).
As seen from Figure 4, left and right sides cam connects by expansion coupling sleeve 32 with corresponding output shaft respectively, the below of left and right sides cam is the swinging mounting 32 of withdrawing controlling organization 28, and the two ends of swinging mounting 32 are provided with rolls ring 31, and described two cams are against rolling on the ring 31 of swinging mounting 32 two ends respectively.
As seen from Figure 5, the pinion of second level gear shaft 21 simultaneously with about output gear wheel (left side) 35 and output gear wheel (right side) 9 engagements on two output shafts, their drive mechanism is " ∧ " type structure.
As seen from Figure 6, swivel joint 34 is installed in the axle head of eccentric shaft 12, and lubricating oil enters in the oil leab 23 by swivel joint 34, and then carries out forced feed lubrication for the sliding bearing lubricating 37 in the upper tool post that is installed on the eccentric shaft 12.
As seen from Figure 7, on the upper box 24 of gear-box, be provided with positioning key 8 and positioning key 17, plate 25 is provided with positioning key 18 in front, and gear-box and front panel are realized being connected and the location by a plurality of studs 20 and outside frame after locating by positioning key 8,17,18 again.
Claims (5)
1. a subdivision is cut main drive gear, comprise main motor, main transmission gearbox, front panel and eccentric shaft, be provided with overload-release clutch between main motor and the main transmission gearbox input, main motor, main transmission gearbox, front panel are fixedly mounted on the frame, eccentric shaft, is characterized in that between main transmission casing and front panel by bearings: the gear in the main transmission gearbox all adopts the hard flank of tooth; Fixedly connected by hydraulic nut between the upper box of eccentric shaft side and lower box at main transmission gearbox; Be provided with corresponding keyway between described main transmission gearbox and front panel and the frame faying face, main transmission gearbox and front panel be by positioning key and frame location, and by studs they are fixed; The axle center of eccentric shaft is provided with oil leab, and lubricating oil enters oil leab by rotation oil circuit joint, makes lubricating oil arrive at the upper tool post that subdivision is cut, to its forced feed lubrication; The concrete structure of main drive gear is:
A) casing of main transmission gearbox comprises upper box, lower box and case lid, and described case lid, upper box and lower box are bolted to connection successively, and the input of casing is provided with cover plate, and front panel is positioned at the other end of casing;
B) input of main transmission gearbox is provided with two input gear shafts, and two independently main motors pass through independently overload-release clutch and corresponding input gear shaft connection respectively;
C) reducing gear in the main transmission gearbox is the structure of pairing stream input double split flow output, that is: reducing gear is provided with two parallel input gear shafts, two input gear shafts simultaneously with first order gear shaft on the engagement of first order gear wheel; Second level gear wheel engagement on the pinion of first order gear shaft and the second level gear shaft; Two output gear wheels are fixedly mounted on respectively on two output shafts, the pinion of second level gear shaft simultaneously with two output shafts on the engagement of output gear wheel; Each gear in the reducing gear all adopts the hard flank of tooth;
D) contain one section eccentric shaft on the output shaft, described one section eccentric shaft is between casing and front panel, output shaft passes through the bearings of three strong points in casing and front panel, and the offset of one section eccentric shaft is greater than the offset of one section eccentric shaft in another output shaft in one of them output shaft; Position of eccentric is corresponding with the upper tool post that subdivision is cut;
E) two output shafts end of being positioned at casing is provided with cam respectively, and the below of cam is the swinging mounting of withdrawing controlling organization, and two cams are against the two ends of swinging mounting respectively, and the withdrawing bar is equipped with in the below of swinging mounting one end.
2. subdivision according to claim 1 is cut main drive gear, it is characterized in that: the drive mechanism of the output gear wheel engagement on the pinion of second level gear shaft and two output shafts is " ∧ " type structure; Output shaft is fixed in casing and front panel by three self-aligning roller bearings, and the self-aligning roller bearing that wherein is arranged in the front panel strong point is the conical bore self-aligning roller bearing.
3. subdivision according to claim 1 is cut main drive gear, it is characterized in that: casing and front panel adopt studs and flat key and frame stationary positioned.
4. subdivision according to claim 1 is cut main drive gear, it is characterized in that: cam and output shaft connect by expansion coupling sleeve, the two ends of swinging mounting are provided with and roll ring in the withdrawing controlling organization, and described two cams are against rolling on the ring of swinging mounting two ends respectively.
5. cut main drive gear according to each described subdivision of claim 1 ~ 4, it is characterized in that: each the bearings point in the main transmission gearbox is by oil pump and oil duct forced feed lubrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110183018 CN102275004A (en) | 2011-07-01 | 2011-07-01 | Main transmission mechanism of slitting shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110183018 CN102275004A (en) | 2011-07-01 | 2011-07-01 | Main transmission mechanism of slitting shear |
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| Publication Number | Publication Date |
|---|---|
| CN102275004A true CN102275004A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110183018 Pending CN102275004A (en) | 2011-07-01 | 2011-07-01 | Main transmission mechanism of slitting shear |
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| Country | Link |
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| CN (1) | CN102275004A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070222A (en) * | 2013-03-28 | 2014-10-01 | 南通恒鼎重型机床有限公司 | Internal transmission device for plate shears |
| CN109019151A (en) * | 2018-09-20 | 2018-12-18 | 马鞍山市方正机械制造有限责任公司 | A kind of high transmission efficiency cable winder and take-up method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201049402Y (en) * | 2007-06-07 | 2008-04-23 | 江苏富力数控机床有限公司 | Digital control plate shearing machine |
| CN201380319Y (en) * | 2009-03-16 | 2010-01-13 | 河南鸿马实业有限公司 | Numerical control steel plate shearing machine |
| CN201609791U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Main drive gear box of hobbing type bilateral scissors |
| CN202137442U (en) * | 2011-07-01 | 2012-02-08 | 南京高精齿轮集团有限公司 | Main transmission mechanism of slitting shear |
-
2011
- 2011-07-01 CN CN 201110183018 patent/CN102275004A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201049402Y (en) * | 2007-06-07 | 2008-04-23 | 江苏富力数控机床有限公司 | Digital control plate shearing machine |
| CN201380319Y (en) * | 2009-03-16 | 2010-01-13 | 河南鸿马实业有限公司 | Numerical control steel plate shearing machine |
| CN201609791U (en) * | 2009-12-30 | 2010-10-20 | 南京高精重载齿轮制造有限公司 | Main drive gear box of hobbing type bilateral scissors |
| CN202137442U (en) * | 2011-07-01 | 2012-02-08 | 南京高精齿轮集团有限公司 | Main transmission mechanism of slitting shear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070222A (en) * | 2013-03-28 | 2014-10-01 | 南通恒鼎重型机床有限公司 | Internal transmission device for plate shears |
| CN109019151A (en) * | 2018-09-20 | 2018-12-18 | 马鞍山市方正机械制造有限责任公司 | A kind of high transmission efficiency cable winder and take-up method |
| CN109019151B (en) * | 2018-09-20 | 2023-09-19 | 马鞍山市方正机械制造有限责任公司 | Cable collecting device with high transmission efficiency and cable collecting method |
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Application publication date: 20111214 |