CN206794356U - A kind of production line of forklift door frame inequilateral channel-section steel - Google Patents
A kind of production line of forklift door frame inequilateral channel-section steel Download PDFInfo
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- CN206794356U CN206794356U CN201720215309.1U CN201720215309U CN206794356U CN 206794356 U CN206794356 U CN 206794356U CN 201720215309 U CN201720215309 U CN 201720215309U CN 206794356 U CN206794356 U CN 206794356U
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- door frame
- asymmetric
- production line
- section steel
- forklift door
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Abstract
It the utility model is related to a kind of production line and production method of forklift door frame inequilateral channel-section steel.Production line of the present utility model includes reversible roughing mill and is arranged at universal finishing mill group thereafter, and universal finishing mill group includes including the first universal finishing mill, edging mill and the second universal finishing mill successively by order of placement；Each milling train in universal finishing mill group is using the different pass of both sides flange width.On the premise of performance is ensured, the lightweight of forklift door frame system can be achieved with inequilateral channel-section steel in the forklift door frame produced using the utility model, reduces the material cost of forklift door frame, reduces fork truck energy consumption, improves the security and stability of fork truck.
Description
Technical field
The utility model belongs to industrial vehicle manufacture and material molding control technical field, and specifically, the utility model relates to
A kind of and forklift door frame production line of inequilateral channel-section steel.
Background technology
The industrial transport vehicle that fork truck is most widely used as logistic industry, its equipment is mainly by inside and outside door
Frame is formed, and fork truck produces very big tilting moment, therefore fork truck as the centre of moment in carrying out forking goods, lifting operation, using propons
Door frame is fork truck most important primary structure member at work.The exploitation of forklift door frame hot rolling deformed steel at present, it instead of initially
Sheet material welding channel-section steel, reduce metal consumption, improve production efficiency, eliminate welding caused by fatigue damage, improve
The stability and economy of fork truck, the demand of Domestic Forklift manufacturing is met to a certain extent.
The deformed steel suitable for fork truck is mainly C-type steel at present, and C-type steel includes web and a pair of edges of a wing, because by hot rolling type
Steel production technology limits, and forklift door frame is equilateral channel steel with C-type steel, i.e. flange width is identical, and forklift door frame C-type steel
The edge of a wing only has side and is used as groundwork face, therefore a pair of edge of a wing equal lengths of C-type steel in use so that door frame deadweight increasing
Greatly, the tilting moment using propons as the centre of moment is increased, influences the security and stability of fork truck to a certain extent, while adds fork
Car door frame material consumes and fork truck energy consumption.High-end fork truck needs forklift door frame inequilateral channel-section steel badly for the light-weighted design of door frame
Exploitation, because forklift door frame is asymmetric with the flange width of inequilateral channel-section steel, special-shapedization degree is higher, to rolling design and raw
Production level has higher technical requirements, and manufacturer is few at present, and hot rolling production difficulty is very big.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provides a kind of production of forklift door frame inequilateral channel-section steel
Line.
The purpose of this utility model is to provide a kind of production line of forklift door frame inequilateral channel-section steel.
Production line of the present utility model uses common shape rolling mill, using less passage, produces forklift door frame with not
Equilateral channel steel qualified products, the utility model production forklift door frame with inequilateral channel-section steel on the premise of requirement is ensured,
Portal frame system deadweight is reduced, reduces the material cost of forklift door frame, realizes the lightweight of door frame.
To achieve the above object, the utility model employs following technical scheme：
The production line of forklift door frame of the present utility model inequilateral channel-section steel, including reversible roughing mill and be arranged at reversible thick
The universal finishing mill group at milling train rear, wherein：
The reversible roughing mill includes multiple asymmetric passes, and each pass is the side wing edge thickness of rolled piece two, width difference
And the different asymmetric rolled piece of corresponding elongation percentage；
The universal finishing mill group includes the first universal finishing mill U1, edging mill E and the 20000th successively by order of placement
Can finishing mill U2；Each milling train in the universal finishing mill group uses asymmetric pass, wherein the edging mill E is control
Pass, for controlling flange width.
According to production line described in the utility model, wherein, the forklift door frame is c-type with inequilateral channel-section steel, including abdomen
Plate and two side wing edges, wherein the thickness on the both sides edge of a wing is identical, width is different, and the forklift door frame is whole with inequilateral channel-section steel
Body height h1In more than 160mm.
According to production line described in the utility model, wherein preferably, the whole height h of the channel steel for mast of forklift1
For 160~170mm.
According to production line described in the utility model, it is further preferred that the specification of the forklift door frame is：The both sides
Edge of a wing thickness t is 20~28mm；The long side wing edge width b1For 60~70mm；The short side flange width b2For 40~
50mm；The edge of a wing is 90~91 ° with web angle Φ；The web thickness s is 13~19mm；High h in channel-section steel2For 112~
120mm。
According to production line described in the utility model, wherein preferably, the reversible roughing mill has been sequentially arranged one not
Symmetrical box hole, two asymmetric cutting-in holes and two asymmetric control holes.It is further preferred that described two asymmetric cutting-ins
Hole respectively is asymmetric cutting hole and rolls hole in advance with asymmetric, and described two asymmetric control holes respectively are leg high growth
Hole is spreaded with inside groove in hole.
Blank is rolled into by the box-section strut that reversible roughing mill of the present utility model is set to be met the pre- of product specification feature and rolls
Asymmetric base.The asymmetric cutting-in hole and asymmetric control the hole reality in reversible roughing mill by the assymmetrical deformation amount of maximum
It is existing, to provide required asymmetric rolled piece into universal finishing mill group.
Using the method for the utility model production forklift door frame inequilateral channel-section steel, using any of the above-described described production line
To complete, comprise the following steps：
1) blank is rolled using reversible roughing mill, enters left-right asymmetry rolling needed for mm finishing mill unit to obtain
Part；
2) successively using the first universal finishing mill U1, edging mill E, the second universal finishing mill U2 to the obtained left and right of step 1)
Asymmetric rolled piece is rolled the forklift door frame inequilateral channel-section steel to obtain, wherein the level of the first universal finishing mill U1
Drafts is 1~2mm, and edger roll drafts is 3~5mm；The drafts of the edging mill E is 3~7mm；The second omnipotent essence
The horizontal drafts of milling train U2 is 1~3mm, and edger roll drafts is 2~4mm.
Production line provided by the utility model, in production of the violent forklift door frame of rolling deformation with inequilateral channel-section steel,
The second frame roughing mill and more universal mills and edging mill are not used, it is omnipotent only with the reversible roughing mill of a frame, two framves
Finishing mill and a frame edging mill, significantly reduce equipment investment, reduce production cost, improve production efficiency.
Using production method of the present utility model, wherein, temperature of the blank when entering reversible roughing mill is 1180
~1230 DEG C.Further selectively, it can be 1180~1210 DEG C, 1190~1220 DEG C, 1200~1230 DEG C etc..
In aforementioned production method, as a kind of preferred embodiment, the rolling of the reversible roughing mill is 5 passages.
Reversible roughing mill pass is cut with roller including asymmetric box hole 1 as shown in Figure 2, the first asymmetric cutting-in hole 2, the second asymmetry
Deep hole 3, the first control hole 4, the second control hole 5, wherein asymmetric box hole, the first asymmetric cutting-in hole and the second asymmetry are cut
The drafts of deep hole is larger, and rolling load is larger, and the drafts in the first asymmetric control hole and the second asymmetric control hole is smaller,
Rolling load is smaller.Roughing mill rolling load overall distribution is uniform, and rectangular bloom can be rolled into required asymmetry by 5 passages
Groove profile rolled piece.
It is compared with the prior art, the utility model designs asymmetric breakdown pass and asymmetric finishing groove, only with thick
5 passages are rolled, 3 passages of finish rolling are achieved that the production of forklift door frame inequilateral channel-section steel, are produced using the utility model
Forklift door frame inequilateral channel-section steel has the characteristics that high accuracy, edge of a wing thickness is identical, flange width is asymmetric, is ensureing usability
On the premise of energy, the material cost of forklift door frame is reduced, realizes door frame lightweight, fork truck energy consumption is reduced, reduces simultaneously
The tilting moment of fork truck, improves the security and stability of fork truck, meets the light-weighted use demand of high-end forklift door frame.This
Outside, production line of the present utility model, in production of the violent forklift door frame of rolling deformation with inequilateral channel-section steel, only with a frame
Reversible roughing mill, two frame universal finishing mills and a frame edging mill, significantly reduce equipment investment, reduce production cost, improve
Production efficiency.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model forklift door frame inequilateral channel-section steel.Wherein,
h1- forklift door frame inequilateral channel-section steel height；h2- forklift door frame height in inequilateral channel-section steel；b1- long side wing edge
Width；b2- short side flange width；T-edge of a wing thickness；S-web thickness；Φ-edge of a wing and web angle；R1-long edge of a wing top
Outside transition arc radius in portion；Outside transition arc radius at the top of R2-short limb edge；R3-edge of a wing inner side and the web angle of cut
Locate transition arc radius；R4-edge of a wing outside and transition arc radius at the web angle of cut.
Fig. 2 is that the roughing mill of the utility model preferred embodiment matches somebody with somebody roller figure.
Fig. 3 is the universal finishing mill pass schematic diagram of the utility model preferred embodiment.
Reference
1st, asymmetric box hole 2, the first asymmetric cutting-in hole 3, the second asymmetric cutting-in hole
4th, the first asymmetric control hole 5, the second asymmetric control hole
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type embodiment is described in further detail.
The production line of forklift door frame of the present utility model inequilateral channel-section steel, including reversible roughing mill and be arranged at reversible thick
The universal finishing mill group at milling train rear, wherein：The reversible roughing mill includes multiple asymmetric passes, and each pass is rolled piece two
The different asymmetric rolled piece of the different and corresponding elongation percentage of flank edge thickness, width；The universal finishing mill group by order of placement according to
It is secondary including the first universal finishing mill U1, edging mill E and the second universal finishing mill U2；Each milling train in the universal finishing mill group
Asymmetric pass is used, wherein the edging mill E is control pass, for controlling flange width.Preferably, it is described can
Inverse roughing mill has been sequentially arranged an asymmetric box hole, two asymmetric cutting-in holes and two asymmetric control holes.Further
Preferably, described two asymmetric cutting-in holes respectively are asymmetric cutting hole and asymmetry rolls hole in advance, described two not right
Claim control hole respectively to be leg high growth hole and spread hole with inside groove.
When producing forklift door frame with inequilateral channel-section steel using production line of the present utility model, first, reversible roughing mill is utilized
Blank is rolled, enters left-right asymmetry rolled piece needed for mm finishing mill unit to obtain, temperature during reversible roughing mill is
1180~1230 DEG C；Then, step 1) is made using the first universal finishing mill U1, edging mill E, the second universal finishing mill U2 successively
The left-right asymmetry rolled piece obtained is rolled the forklift door frame inequilateral channel-section steel to obtain, wherein first universal finishing mill
U1 horizontal drafts is 1~2mm, and edger roll drafts is 3~5mm；The drafts of the edging mill E is 3~7mm；Described
The two horizontal drafts of universal finishing mill U2 are 1~3mm, and edger roll drafts is 2~4mm.
The utility model is described in detail below by specific embodiment, but the utility model is not limited to this.
Embodiment
As shown in figure 1, it is the sectional view of the forklift door frame inequilateral channel-section steel of the present embodiment production, including web and two
The side inequilateral edge of a wing, wherein：The height of forklift door frame is that h1 is 160m~170mm.The thickness t of two side wing edges is 20~
28mm, exemplary can be 22mm, 24mm, 24.6mm, 26mm, 28mm etc., dimensional tolerance ± 0.6mm；Long side wing edge width
b1For 60~70mm, exemplary can be 61mm, 63mm, 64mm, 67mm, 69mm etc., dimensional tolerance ± 0.75mm；It is described
Short side flange width b2For 45~55mm, exemplary can be 46mm, 48mm, 50.8mm, 51mm, 53mm etc., dimensional tolerance
±0.75mm；The edge of a wing is 90~91 ° with web angle Φ；Web thickness s is 12~19mm, it is exemplary can be 13mm,
14mm, 16mm, 17mm, 19mm etc., dimensional tolerance ± 0.6mm；High h in channel-section steel2For 112~119mm, exemplary can be
113mm, 114.6mm, 115.5mm, 116mm, 118mm etc., dimensional tolerance ± 0.5mm；Outside transition arc at the top of the long edge of a wing
Radius R1 is 4mm；Outside transition arc radius R2 is 4mm at the top of short limb edge；Edge of a wing inner side and transition arc at the web angle of cut
Radius R3 is 6mm；Transition arc radius R4 is 8mm on the outside of the edge of a wing and at the web angle of cut；Because product is asymmetric, special-shapedization degree
Height, height, web thickness, edge of a wing thickness, flange width equidimension tolerance are higher in channel-section steel, and hot rolling technology design is controlled with production
Difficulty processed is larger.The forklift door frame inequilateral channel-section steel produced using the utility model, on the premise of performance is ensured, is subtracted
Lack forklift door frame deadweight, effectively reduced the material cost of forklift door frame, improve the security and stability of forklift door frame.
As shown in Fig. 2 it matches somebody with somebody roller figure for the roughing mill of the present embodiment, 5 asymmetric holes are disposed with, are followed successively by from left to right
Box hole 1, the first cutting-in hole 2, the second cutting-in hole 3, the first control hole 4, the second control hole 5.Blank is rolled into production by box hole 1
Asymmetric base needed for product；First cutting-in hole 2 is using the asymmetric pass that flange width is identical, edge of a wing thickness is different；Second cuts
Deep hole 3 and the first control hole 4 are using the asymmetric pass that left and right flange width is different, edge of a wing thickness is different；Second control hole 5 is adopted
With the asymmetric pass that left and right edge thickness is identical, flange width is different.First cutting-in hole 2 is open pass, specially not right
Claim cutting hole, the asymmetric rolled piece in box hole 1 is mainly squeezed into asymmetric U-shaped rolled piece, rolled piece both sides amount of metal is carried out just
Walk cutting；Second cutting-in hole 3 is half opening pass, is specially that asymmetry rolls hole in advance, main to compress rolled piece web, is controlled simultaneously
Rolled piece flange width；First control hole 4 is closed pass, specially leg high growth hole, further compresses rolled piece web, enlarged slot
Steel inboard width and height, while control flange width；Second control hole 5 is half opening pass, and specially inside groove spreads hole, will
Roughing rolled piece web thickness and edge of a wing thickness further compress so that two side wing edge thickness are identical, while expand wide on the inside of channel-section steel
Degree and height.
As shown in figure 3, the omnipotent finish rolling design of section of rolling mill schematic diagram for the present embodiment.Each milling train uses the wing in mm finishing mill unit
The asymmetric pass that edge thickness is identical, flange width is different.
Table 1 show the product design dimensional parameters of forklift door frame inequilateral channel-section steel.
The product design dimensional parameters of table 1
Production line includes reversible roughing mill and mm finishing mill unit, and an asymmetric box is disposed with the reversible roughing mill roll
Hole, 2 asymmetric cutting-in holes, 2 asymmetric control holes, as shown in Figure 2.The both sides flange width and thickness in box hole not phase
Together, the both sides flange width in the first cutting-in hole is identical, and two side wing edge thickness are different, the both sides of the second cutting-in hole and the first control hole
Edge of a wing thickness and width differs, and the both sides flange width difference of the second control hole, edge of a wing thickness are identical, and blank passes through 5
Passes, the at utmost asymmetric deformation of product is completed in roughing flow, avoids follow-up finish rolling flow from rolled piece appearance occur
The defects of bending.
The mm finishing mill unit includes a two frame universal mill U1, U2 and frame edging mill E, production-line arrangement order be followed successively by U1,
E、U2.U1 universal finishing mills group mainly compresses channel-section steel web, expands channel-section steel inboard width and height, while it is wide to increase two side wing edges
Degree, E edging mills are controlled to the side wing edge camber of rolled piece two, and U2 universal finishing mill drafts is smaller, channel-section steel each several part deflection
It is smaller, final adjustment control is carried out to workpiece measurement.Each milling train is using both sides flange width difference and the edge of a wing in mm finishing mill unit
Thickness identical asymmetry pass, pass are as shown in Figure 3.
Method using the production line production illustrated dimension channel-section steel of table 1 is as follows：
The specification channel-section steel uses the continuous cast rectangle billet of 165mm × 200mm sections, and heating and temperature control is 1200~1230
℃；
The continuous cast rectangle billet of heating is rolled into reversible roughing mill, and roughing mill rolling schedule is as shown in table 2, rectangle
Continuous casting billet obtains the left-right asymmetry rolled piece needed for finish rolling after 5 passes of roughing mill.
The roughing mill rolling schedule of table 2
Rolled piece enters mm finishing mill unit after going out roughing mill, passes sequentially through U1, E, U2 mill milling and obtains the forklift door frame use
Inequilateral channel-section steel, mm finishing mill unit rolling procedure are as shown in table 3.
The mm finishing mill unit rolling procedure of table 3
The forklift door frame inequilateral channel-section steel produced using above-described embodiment method, each dimensional tolerance of product meet use
It is required that.
The utility model proposes production line realize forklift door frame inequilateral channel-section steel hot rolling production, using less
Milling train and rolling pass, reduce equipment investment, improve production efficiency；The forklift door frame produced using the utility model method
It is higher with inequilateral channel-section steel dimensional accuracy, the requirement of terminal user is met, fork truck is reduced using inequilateral structure
Door frame weight, fork truck operating power consumption is reduced, the security and stability of fork truck can be effectively improved, reduce the material cost of forklift door frame.
Certainly, the utility model can also have various embodiments, in the feelings without departing substantially from the utility model spirit and its essence
Under condition, those skilled in the art can make various corresponding changes and deformation, but this according to disclosure of the present utility model
A little corresponding changes and deformation should all belong to the protection domain of the utility model claims.
Claims (6)
- A kind of 1. forklift door frame production line of inequilateral channel-section steel, it is characterised in that the production line include reversible roughing mill and The universal finishing mill group at reversible roughing mill rear is arranged at, wherein：The reversible roughing mill includes multiple asymmetric passes, and each pass is the side wing edge thickness of rolled piece two, width difference and phase Answer the asymmetric rolled piece that elongation percentage is different；The universal finishing mill group includes the first universal finishing mill, edging mill and the second omnipotent finish rolling successively by order of placement Machine；Each milling train in the universal finishing mill group uses asymmetric pass, wherein the edging mill is control pass, for controlling Flange width processed.
- 2. production line according to claim 1, it is characterised in that the forklift door frame is c-type with inequilateral channel-section steel, including Web and two side wing edges, wherein the thickness on the both sides edge of a wing is identical, width is different, forklift door frame inequilateral channel-section steel Whole height h1In more than 160mm.
- 3. production line according to claim 2, it is characterised in that the whole height h of the channel steel for mast of forklift1For 160 ~170mm.
- 4. the production line according to Claims 2 or 3, it is characterised in that the specification of the forklift door frame is：Two side wing edges are thick It is 20~28mm to spend t；Long side wing edge width b1For 60~70mm；Short side flange width b2For 40~50mm；The edge of a wing and abdomen Plate angle Φ is 90~91 °；The web thickness s is 13~19mm；High h in channel-section steel2For 112~120mm.
- 5. production line according to claim 1, it is characterised in that the reversible roughing mill has been sequentially arranged an asymmetry Box hole, two asymmetric cutting-in holes and two asymmetric control holes.
- 6. production line according to claim 5, it is characterised in that it is not right that described two asymmetric cutting-in holes respectively are Cutting hole is claimed to roll hole in advance with asymmetric, described two asymmetric control holes respectively are leg high growth hole and spread hole with inside groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215309.1U CN206794356U (en) | 2017-03-07 | 2017-03-07 | A kind of production line of forklift door frame inequilateral channel-section steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720215309.1U CN206794356U (en) | 2017-03-07 | 2017-03-07 | A kind of production line of forklift door frame inequilateral channel-section steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206794356U true CN206794356U (en) | 2017-12-26 |
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ID=60729772
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720215309.1U Expired - Fee Related CN206794356U (en) | 2017-03-07 | 2017-03-07 | A kind of production line of forklift door frame inequilateral channel-section steel |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975658A (en) * | 2017-03-07 | 2017-07-25 | 山东钢铁股份有限公司 | The production line and production method of a kind of forklift door frame inequilateral channel-section steel |
-
2017
- 2017-03-07 CN CN201720215309.1U patent/CN206794356U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975658A (en) * | 2017-03-07 | 2017-07-25 | 山东钢铁股份有限公司 | The production line and production method of a kind of forklift door frame inequilateral channel-section steel |
| CN106975658B (en) * | 2017-03-07 | 2019-06-18 | 山东钢铁股份有限公司 | A kind of production line and production method of forklift door frame inequilateral channel steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20180307 |