CN202804047U - Rack steel tooth molding roller and rolling production line - Google Patents
Rack steel tooth molding roller and rolling production line Download PDFInfo
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- CN202804047U CN202804047U CN 201220528567 CN201220528567U CN202804047U CN 202804047 U CN202804047 U CN 202804047U CN 201220528567 CN201220528567 CN 201220528567 CN 201220528567 U CN201220528567 U CN 201220528567U CN 202804047 U CN202804047 U CN 202804047U
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- tooth
- production line
- tooth bar
- bar steel
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Abstract
The utility model relates to a rack steel tooth molding roller and a rolling production line. The rack steel tooth molding roller comprises an upper roller and a lower roller, wherein the upper roller and the lower roller are arranged in parallel. Circumferential tooth-shaped grooves are arranged in the outer surface of the upper roller or in the outer surface of the lower roller. The rolling production line comprises a heating unit, a rough rolling unit, a saw-shearing unit, a precision rolling unit and a finishing unit, wherein the heating unit, the rough rolling unit, the saw-shearing unit, the precision rolling unit and the finishing unit are arranged in sequence. The precision rolling unit comprises a tooth molding precision rolling machine. A roller of the tooth molding precision rolling machine comprises an upper roller and a lower roller, wherein the upper roller and the lower roller are arranged in parallel. Circumferential tooth-shaped grooves are arranged in the outer surface of the upper roller or in the outer surface of the lower roller. According to the rack steel tooth molding roller and the rolling production line, original blank which is heated to rolling temperature is rolled to rack blank, an irregular deformation head end portion and an irregular deformation tail end portion are cut off through the saw-shearing unit and then the rack blank is sent to the tooth molding precision rolling machine, tooth shape can be molded once, production efficiency is high, streamline damage to metal tissue in the rack steel is avoided, intensity of the rack is enhanced, life of the rack is prolonged and shock resistance of the rack is improved.
Description
Technical field
The utility model relates to the Ferrous Metallurgy field, is specifically related to a kind of tooth bar steel-tooth molding roller and rolling line.
Background technology
At present, the process of traditional mode of production tooth bar steel namely adopts first traditional milling method to produce single rack band steel blank, machined one-tenth tooth bar steel finished product again, and the technological process of production is seen Fig. 5.Adopt traditional handicraft method working (machining) efficiency low, when milling type and cutting profile of tooth, need mill off and machine away a large amount of metals, the resultant metal recovery rate is low, production cost increases, because follow-up tooth Profile Machining adopts the cutting technology moulding, the metal structure streamline at tooth bar teeth groove place all cuts off, see Fig. 6, thereby tooth bar strength decreased, service life are descended.
The utility model content
In view of this, the purpose of this utility model provides a kind of tooth bar steel-tooth molding roller and rolling line, utilizes the rolling tooth bar steel of metal plastic deformation principle, overcomes the deficiency of existing metal cutting manufacturing gear strip, enhances productivity.
The utility model discloses a kind of tooth bar steel-tooth molding roller, described roll comprises top roll and the lower roll that be arranged in parallel up and down, and described top roll or lower roll outer surface are evenly equipped with circumferential serrate slot.
The invention also discloses a kind of tooth bar steel rolling production line, comprise that the heating unit that sets gradually, roughing unit, saw cut unit, finish rolling unit and finishing unit, described roughing unit comprises the rack blank milling train, described finish rolling unit comprises tooth moulding finishing mill, the roll of described tooth moulding finishing mill comprises top roll and the lower roll that be arranged in parallel up and down, and described top roll or lower roll outer surface are evenly equipped with circumferential serrate slot.
Further, described roughing unit comprises at least one group of rack blank milling train, and described rack blank milling train is horizontal mill or vertical-flat-rolled machine unit or flat-vertical mill unit.
Further, described finish rolling unit comprises at least one group of tooth moulding finishing mill, and described tooth moulding finishing mill is duo mill.
Further, described finishing unit comprises cooling infrastructure, straightener, fixed-length transverse cutting device, finish-milling tooth device, annealing device and straightener again.
Further, described saw is cut between unit and the finish rolling unit and is provided with Traverse Displacement Unit.
Further, described roughing unit front end is provided with dephosphorize by high pressure water device I.
Further, described finish rolling unit front end is provided with dephosphorize by high pressure water device II.
The beneficial effects of the utility model are: the original blank that the utility model will be heated to rolling temperature is rolled into rack blank, jagsaw enters tooth moulding finishing mill after cutting the head-tail of unit excision irregular deformation, pushes up and down the generation plastic deformation by roll, can realize the disposable machine-shaping of profile of tooth, its production efficiency is high, and the moulding deviation is little, and precision is high, minimizing organizes streamline to destroy to tooth bar steel interior metal, increase tooth bar intensity, prolonged the tooth bar life-span, improved the tooth bar impact resistance.
Description of drawings
For the purpose, technical scheme and the advantage that make utility model is clearer, below in conjunction with accompanying drawing the utility model is described in further detail, wherein:
Fig. 1 is tooth bar steel rolling process equipment layout drawing of the present utility model;
Fig. 2 is the tooth bar steel-tooth shape interior metal streamline schematic diagram of explained hereafter of the present utility model;
Fig. 3 is finish rolling of the present utility model unit roll pass schematic diagram;
Fig. 4 is tooth bar steel production method process chart of the present utility model;
Fig. 5 is traditional tooth bar steel production technological process;
Fig. 6 is the tooth bar steel-tooth shape interior metal streamline schematic diagram that traditional handicraft is produced.
The specific embodiment
, to accompanying drawing 4 preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing 1.
As shown in the figure, tooth bar steel-tooth molding roller of the present utility model, described roll comprise top roll 9 and the lower roll 10 that be arranged in parallel up and down, and described top roll 9 or lower roll 10 outer surfaces are evenly equipped with circumferential serrate slot 11; Present embodiment is that serrate slot 11 is arranged on top roll 9 outer surfaces, and serrate slot 11 should be with the profile of tooth of tooth bar steel " recessed " " protruding " interlock, and the shape and size of serrate slot 11 are formulated according to finished product tooth bar steel dimensions; If multiple sets of teeth moulding finishing mill tandem rolling then is designed to serrate slot 11 the progressively transitinal pass of tooth moulding, the serrate slot 11 of last group tooth moulding finishing mill gets final product with the horizontal interlock of tooth bar steel-tooth shape.
The method of using tooth bar steel-tooth molding roller of the present utility model to carry out the tooth formation rolling, rack blank is sent between top roll 9 and the lower roll 10, top roll 9 and lower roll 10 rotate, the linear velocity that acts on the rack blank is identical, rack blank is done lengthwise movement, plastic deformation occurs in rack blank under the extruding of the serrate slot of top roll 9 or lower roll 10, present embodiment is under the extruding of the serrate slot of top roll 9 plastic deformation to occur, along with the continuous rotation of top roll 9 and lower roll 10, can finish continuously the tooth formation rolling of rack blank.
Tooth bar steel rolling production line of the present utility model, comprise the heating unit 1 that sets gradually, roughing unit 2, saw is cut unit 3, finish rolling unit 4 and finishing unit 8, described roughing unit 2 comprises the rack blank milling train, the original blank that is heated to rolling temperature is rolled into rack blank, described finish rolling unit 4 comprises tooth moulding finishing mill, the roll of described tooth moulding finishing mill comprises top roll 9 and the lower roll 10 that be arranged in parallel up and down, described top roll 9 or lower roll 10 outer surfaces are evenly equipped with circumferential serrate slot 11, present embodiment is that serrate slot 11 is arranged on top roll 9 outer surfaces, and the extruding by top roll 9 and lower roll 10 makes rack blank roll out corresponding profile of tooth.
In the present embodiment, described roughing unit 2 comprises at least one group of rack blank milling train, and described rack blank milling train is horizontal mill or vertical-flat-rolled machine unit or flat-vertical mill unit, original blank is rolled into the size rack blank of regulation; The rack blank milling train can arrange according to production capacity, original blank, tooth bar steel finished product cross dimensions situation.
In the present embodiment, described finish rolling unit 4 comprises at least one group of tooth moulding finishing mill, and described tooth moulding finishing mill is duo mill, finishes the tooth formation rolling of rack blank; Profile of tooth is less, and teeth groove is more shallow, and 1 passage pass is depressed and one group of tooth moulding finishing mill 1 passage can be set in the time of can satisfying the tooth condition of molding be finished the tooth formation rolling; Profile of tooth is larger, and teeth groove is darker, and 1 passage pass is depressed in the time of can not satisfying the tooth condition of molding, two groups of tooth moulding finishing mills can be set or multiple sets of teeth moulding finishing mill continuous rolling is finished the tooth formation rolling, finishes the pass centering of tooth bar steel between frame by guide and guard and guide plate.
In the present embodiment, described finishing unit 8 comprises cooling infrastructure, straightener, fixed-length transverse cutting device, finish-milling tooth device, annealing device and straightener again, and the tooth bar steel off-line that rolls out profile of tooth is carried out post-processed, obtains tooth bar steel finished product.
In the present embodiment, described saw is cut between unit 3 and the finish rolling unit 4 and is provided with Traverse Displacement Unit 5, and layout has effectively shortened rolling line length like this, can reduce blank transportation range and time, improves rolling efficiency.
In the present embodiment, described roughing unit 2 front ends are provided with dephosphorize by high pressure water device I 6, described finish rolling unit 4 front ends are provided with dephosphorize by high pressure water device II 7, iron and steel is oxidized easily under the condition of high temperature, form the iron scale of one deck densification on its surface, if this layer iron scale can not be removed before rolling, they can be pressed into steel surface by roll in the operation of rolling, affect its surface quality, utilize the mechanical impact force of water under high pressure to come except removing iron scale.
Use tooth bar steel rolling production line of the present utility model to produce the method for tooth bar steel, original blank is heated to rolling temperature at heating unit 1, then in dephosphorize by high pressure water device I 6, remove scale on surface, enter roughing unit 2 back and forth is rolled into given size through multi-pass rack blank, cut unit 3 by saw again and cut away the head-tail that in the breaking down process, forms irregular deformation, rack blank transits to finish rolling unit 4 through Traverse Displacement Unit 5, before entering finish rolling unit 4, remove scale on surface by dephosphorize by high pressure water device II 7 again, plastic deformation occurs in rack blank under the extruding of the serrate slot 11 of tooth moulding finishing mill roll afterwards, continuous rotation along with top roll 9 and lower roll 10, finish continuously the tooth formation rolling of rack blank, after finishing the tooth formation rolling, rolled piece enters 8 finishing of finishing unit and processes, through cooling, aligning, fixed-length transverse cutting, the finish-milling tooth, heat treatment, after aligning waits finishing procedure again, obtain at last tooth bar steel finished product.
The utlity model has following advantage:
1) the utility model takes full advantage of ability and the characteristics of roll forming, the tooth forming process of tooth bar steel is designed in final roll forming operation, save the aligning operation after the milling type, rough mill tooth and rough milling tooth in the finishing step, optimize tooth bar steel production technology, improve tooth bar steel rolling production capacity, reduce metal loss, improve recovery rate of iron, reduce production costs;
2) tradition cutting profile of tooth technique is compared in tooth bar steel-tooth shape moulding in the operation of rolling, and it is minimum that rolling profile of tooth organizes streamline to destroy to tooth bar steel interior metal, tooth intensity obviously increases, longer service life, impact resistance is higher, and tooth interior metal streamline schematic diagram is seen Fig. 2 after the production of tooth bar steel rolling;
3) optimization by this tooth bar steel rolling production technology, can be abundant integration mill and finishing department resource, so that the tooth bar steel becomes possibility in same Workshop Production fully from the original blank to the final finished, simplify the production and processing operation, reduce human input, reduce operation cost of enterprises and logistics cost, improve the performance of enterprises.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although by the utility model being described with reference to preferred embodiment of the present utility model, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and not depart from the spirit and scope of the present utility model that appended claims limits.
Claims (8)
1. tooth bar steel-tooth molding roller, it is characterized in that: described roll comprises top roll and the lower roll that be arranged in parallel up and down, described top roll or lower roll outer surface are evenly equipped with circumferential serrate slot.
2. tooth bar steel rolling production line, it is characterized in that: comprise that the heating unit that sets gradually, roughing unit, saw cut unit, finish rolling unit and finishing unit, described roughing unit comprises the rack blank milling train, described finish rolling unit comprises tooth moulding finishing mill, the roll of described tooth moulding finishing mill comprises top roll and the lower roll that be arranged in parallel up and down, and described top roll or lower roll outer surface are evenly equipped with circumferential serrate slot.
3. tooth bar steel rolling production line according to claim 2, it is characterized in that: described roughing unit comprises at least one group of rack blank milling train, described rack blank milling train is horizontal mill or vertical-flat-rolled machine unit or flat-vertical mill unit.
4. tooth bar steel rolling production line according to claim 2, it is characterized in that: described finish rolling unit comprises at least one group of tooth moulding finishing mill, described tooth moulding finishing mill is duo mill.
5. tooth bar steel rolling production line according to claim 2 is characterized in that: described finishing unit comprises cooling infrastructure, straightener, fixed-length transverse cutting device, finish-milling tooth device, annealing device and straightener again.
6. tooth bar steel rolling production line according to claim 2, it is characterized in that: described saw is cut between unit and the finish rolling unit and is provided with Traverse Displacement Unit.
7. tooth bar steel rolling production line according to claim 2, it is characterized in that: described roughing unit front end is provided with dephosphorize by high pressure water device I.
8. tooth bar steel rolling production line according to claim 2, it is characterized in that: described finish rolling unit front end is provided with dephosphorize by high pressure water device II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528567 CN202804047U (en) | 2012-10-16 | 2012-10-16 | Rack steel tooth molding roller and rolling production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528567 CN202804047U (en) | 2012-10-16 | 2012-10-16 | Rack steel tooth molding roller and rolling production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202804047U true CN202804047U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220528567 Withdrawn - After Issue CN202804047U (en) | 2012-10-16 | 2012-10-16 | Rack steel tooth molding roller and rolling production line |
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| Country | Link |
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| CN (1) | CN202804047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909297A (en) * | 2012-10-16 | 2013-02-06 | 中冶赛迪工程技术股份有限公司 | Rack steel tooth forming roll, rolling production line and production method |
-
2012
- 2012-10-16 CN CN 201220528567 patent/CN202804047U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909297A (en) * | 2012-10-16 | 2013-02-06 | 中冶赛迪工程技术股份有限公司 | Rack steel tooth forming roll, rolling production line and production method |
| CN102909297B (en) * | 2012-10-16 | 2015-07-08 | 中冶赛迪工程技术股份有限公司 | Rack steel tooth forming roll, rolling production line and production method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130320 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |