CN112794243A - Fork truck is hot rolling J shaped steel for portal - Google Patents
Fork truck is hot rolling J shaped steel for portal Download PDFInfo
- Publication number
- CN112794243A CN112794243A CN202110126806.5A CN202110126806A CN112794243A CN 112794243 A CN112794243 A CN 112794243A CN 202110126806 A CN202110126806 A CN 202110126806A CN 112794243 A CN112794243 A CN 112794243A
- Authority
- CN
- China
- Prior art keywords
- wing plate
- boss
- plate
- web
- thickness
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000005098 hot rolling Methods 0.000 title claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/08—Masts; Guides; Chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/08—Masts; Guides; Chains
- B66F9/087—Monomasts
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to the technical field of machinery and material processing, in particular to hot-rolled J-shaped steel for a forklift gantry, which comprises the following components in percentage by weight: web, first pterygoid lamina, second pterygoid lamina and third pterygoid lamina, fork truck is hot rolling J shaped steel for portal still includes: the wedge-shaped platform comprises a first boss, a second boss and a wedge-shaped platform; the first wing plate and the second wing plate are positioned at two ends of the lower surface of the web plate and form a C-shaped structure with the web plate; the third wing plate is positioned at the position of one end of the upper surface of the web plate, which is far away from the first wing plate; the first boss is positioned at the joint of the lower surface of the web plate and the left side surface of the second wing plate; the second boss is positioned at the joint of the upper surface of the web plate and the left side surface of the third wing plate; the wedge platform is located the junction of second alar plate up end and third alar plate right flank. The invention has wide operation visual field, high rigidity, material saving, low hot rolling difficulty and low production cost.
Description
Technical Field
The invention relates to the technical field of machinery and material processing, in particular to hot-rolled J-shaped steel for a forklift gantry.
Background
The portal is a lifting mechanism of the forklift and serves as a core working device of the forklift, safety and operation convenience are key indexes for measuring the advancement of the portal mechanism, profile steel used for manufacturing the portal is used as a basic component, and the safety and operation convenience of the whole portal are determined by the external dimension and the section characteristics of the profile steel. In recent years, the lift height of a forklift increases significantly with changes in work scenes. In order to cope with the change, the three-stage door frame is produced and replaces the two-stage door frame step by step, and the three-stage door frame is adopted, so that the lifting height is increased to 1.5 times of the original lifting height under the condition that the vehicle height is not changed, and the adaptability of a working scene is obviously improved. However, in use, the width of the steel wing plate of the portal frame in the prior art is large, the portal frame is increased from the second level to the third level, the thickness of the portal frame is increased, the working blind area is enlarged, and the operation convenience and the safety are reduced. To address this problem, the forklift industry typically reduces the width of the mast section steel wing panels to improve the field of view, but this can result in a reduction in the stiffness and safety of the mast. Although it can be compensated for by increasing the strength of the material, the manufacturing cost is increased accordingly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, reduce the working blind area, improve the operation visual field, not reduce the rigidity of the portal frame and save the portal frame material.
In order to achieve the above object, the present invention provides a hot-rolled J-section steel for a forklift mast, comprising: web 1, first pterygoid lamina 2, second pterygoid lamina 3 and third pterygoid lamina 4, fork truck is hot rolling J shaped steel for portal still includes: a first boss 5, a second boss 6 and a wedge table 7; the first wing plate 2 and the second wing plate 3 are positioned at two ends of the lower surface of the web plate 1, and further form a C-shaped structure together with the web plate 1; the third wing plate 4 is positioned at the position, far away from one end of the first wing plate 2, of the upper surface of the web plate 1, the thickness of the third wing plate 4 is gradually increased from the end part to the root part, and the right side surface of the third wing plate 4 approximately corresponds to the left side surface of the second wing plate 3 up and down; the first boss 5 is positioned at the joint of the lower surface of the web plate 1 and the left side surface of the second wing plate 3; the second boss 6 is positioned at the joint of the upper surface of the web plate 1 and the left side surface of the third wing plate 4, and the left side of the second boss 6 is close to the vertical bisector of the section steel; the wedge-shaped platform 7 is positioned at the joint of the upper end surface of the second wing plate 3 and the right side surface of the third wing plate 4.
Preferably, the web 1 has a thickness of 10-13mm and a width of 163-167 mm; the thickness of the first wing plate 2 is 23-25mm, and the width is 33-36 mm; the thickness of the second wing plate 3 is 21-23mm, and the width is 33-36 mm; the third wing plate 4 has an average thickness of 18-20mm and a width of 31-35 mm; the width of the first boss 5 is 25-35mm, and the thickness is 2-5 mm; the width of the second boss 6 is 35-45mm, and the thickness is 2-5 mm.
Preferably, the connection part of each part is in circular arc transition, and the radius of the circular arc is between 3 and 12 mm.
Preferably, the right side surface of the third wing plate 4 forms an angle with the vertical direction, the first boss 5 forms an angle with the lower surface of the web plate 1, the second boss 6 forms an angle theta with the upper surface of the web plate 1 of 2-5 degrees, and the wedge-shaped table 7 forms an angle alpha with the upper surface of the web plate 1 in the horizontal direction of 5-15 degrees.
Preferably, the right side surface of the third panel 4 vertically corresponds to the left side surface of the second panel 3.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention reduces the structural width of the three-stage door frame and enlarges the operation visual field. Through increasing pterygoid lamina thickness, compensatied the portal rigidity decline that leads to because of the pterygoid lamina width reduces.
2) The invention further reduces the weight of the portal frame and obviously saves materials under the condition that the rigidity of the portal frame is not obviously reduced.
3) The design that the left side of the second boss is positioned near the vertical bisector plays a strong role in lateral support and positioning for the roller.
4) The design that the third wing plate becomes thicker gradually from the end part to the root part improves the rigidity of the third wing plate and reduces the deformation caused by the extrusion of the roller wheel without increasing materials; the right flank of third alar plate 4 and the approximate design that corresponds from top to bottom of left surface of second alar plate 3 make and beat the time alignment from top to bottom, and not only level pleasing to the eye but also safety and stability are difficult for empting.
5) The invention increases the integral strength of the wing plate, eases the shape change of the connecting part, reduces the abrasion of the die in the hot rolling process and reduces the hot rolling difficulty and the production cost. The joints of all parts are in arc transition design, so that the structural strength is further improved.
Drawings
FIG. 1 is a schematic representation of hot-rolled J-section steel for a forklift mast according to the present invention;
FIG. 2 is a partial enlarged view of hot-rolled J-shaped steel for the forklift mast according to the present invention;
FIG. 3 is a diagram illustrating bundling of hot rolled J-section steel for a forklift mast according to the present invention.
Reference numerals:
1. the structure comprises a web plate, 2, a first wing plate, 3, a second wing plate, 4, a third wing plate, 5, a first boss, 6, a second boss, 7 and a wedge-shaped table.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, the invention provides hot-rolled J-section steel for a forklift mast, which comprises the following components: web 1, first pterygoid lamina 2, second pterygoid lamina 3 and third pterygoid lamina 4, the portal still includes in the fork truck: a first boss 5, a second boss 6 and a wedge table 7; the first wing plate 2 and the second wing plate 3 are positioned at two ends of the lower surface of the web plate 1, and further form a C-shaped structure together with the web plate 1; the third wing plate 4 is positioned at the position, far away from one end of the first wing plate 2, of the upper surface of the web plate 1, the thickness of the third wing plate 4 is gradually increased from the end part to the root part, and the right side surface of the third wing plate 4 approximately corresponds to the left side surface of the second wing plate 3 up and down; the first boss 5 is positioned at the joint of the lower surface of the web plate 1 and the left side surface of the second wing plate 3; the second boss 6 is positioned at the joint of the upper surface of the web plate 1 and the left side surface of the third wing plate 4, and the left side of the second boss 6 is close to the vertical bisector of the section steel; the wedge-shaped platform 7 is positioned at the joint of the upper end surface of the second wing plate 3 and the right side surface of the third wing plate 4.
The web plate 1 is 10mm thick and 163mm wide; the first wing plate 2 has a thickness of 23mm and a width of 33 mm; the second wing plate 3 has a thickness of 21mm and a width of 33 mm; the third fin 4 has an average thickness of 18mm and a width of 31 mm; the width of the first boss 5 is 25mm, and the thickness is 2 mm; the second boss 6 is 35mm wide and 2mm thick.
The joints of the above parts are all arc transitions, and the radius of the arc is 3 mm.
The right side surface of the third wing plate 4 forms an included angle with the vertical direction, the first boss 5 forms an included angle with the lower surface of the web plate 1, and the second boss 6 forms an included angle theta with the upper surface of the web plate 1 which is 2 degrees. The angle alpha between the wedge-shaped platform 7 and the horizontal direction of the upper surface of the web 1 is 5 degrees.
Example 2
The invention also provides hot-rolled J-shaped steel for the forklift mast, which comprises the following components in percentage by weight: web 1, first pterygoid lamina 2, second pterygoid lamina 3 and third pterygoid lamina 4, the portal still includes in the fork truck: a first boss 5, a second boss 6 and a wedge table 7; the first wing plate 2 and the second wing plate 3 are positioned at two ends of the lower surface of the web plate 1, and further form a C-shaped structure together with the web plate 1; the third wing plate 4 is positioned at the position, far away from one end of the first wing plate 2, of the upper surface of the web plate 1, the thickness of the third wing plate 4 is gradually increased from the end part to the root part, and the right side surface of the third wing plate 4 approximately corresponds to the left side surface of the second wing plate 3 up and down; the first boss 5 is positioned at the joint of the lower surface of the web plate 1 and the left side surface of the second wing plate 3; the second boss 6 is positioned at the joint of the upper surface of the web plate 1 and the left side surface of the third wing plate 4, and the left side of the second boss 6 is close to the vertical bisector of the section steel; the wedge-shaped platform 7 is positioned at the joint of the upper end surface of the second wing plate 3 and the right side surface of the third wing plate 4.
The web plate 1 is 12mm in thickness and 165mm in width; the thickness of the first wing plate 2 is 24mm, and the width is 35 mm; the second wing plate 3 has a thickness of 22mm and a width of 35 mm; the third fin 4 has an average thickness of 19mm and a width of 33 mm; the width of the first boss 5 is 30mm, and the thickness is 4 mm; the second boss 6 is 40mm wide and 4mm thick.
The joints of the above parts are all arc transitions, and the radius of the arc is 8 mm.
The right side surface of the third wing plate 4 forms an included angle with the vertical direction, the first boss 5 forms an included angle with the lower surface of the web plate 1, and the second boss 6 forms an included angle theta with the upper surface of the web plate 1 which is 3 degrees. The wedge-shaped platform 7 forms an angle alpha of 10 degrees with the horizontal direction of the upper surface of the web 1.
Example 3
The invention also provides hot-rolled J-shaped steel for the forklift mast, which comprises the following components in percentage by weight: web 1, first pterygoid lamina 2, second pterygoid lamina 3 and third pterygoid lamina 4, the portal still includes in the fork truck: a first boss 5, a second boss 6 and a wedge table 7; the first wing plate 2 and the second wing plate 3 are positioned at two ends of the lower surface of the web plate 1, and further form a C-shaped structure together with the web plate 1; the third wing plate 4 is positioned at the position, away from one end of the first wing plate 2, of the upper surface of the web plate 1, the thickness of the third wing plate 4 is gradually increased from the end part to the root part, and the right side surface of the third wing plate 4 corresponds to the left side surface of the second wing plate 3 up and down; the first boss 5 is positioned at the joint of the lower surface of the web plate 1 and the left side surface of the second wing plate 3; the second boss 6 is positioned at the joint of the upper surface of the web plate 1 and the left side surface of the third wing plate 4, and the left side of the second boss 6 is close to the vertical bisector of the section steel; the wedge-shaped platform 7 is positioned at the joint of the upper end surface of the second wing plate 3 and the right side surface of the third wing plate 4.
The thickness of the web plate 1 is 13mm, and the width of the web plate is 167 mm; the first wing plate 2 has a thickness of 25mm and a width of 36 mm; the second wing plate 3 has a thickness of 23mm and a width of 36 mm; the third fin 4 has an average thickness of 20mm and a width of 35 mm; the width of the first boss 5 is 35mm, and the thickness is 5 mm; the width of the second boss 6 is 45mm, and the thickness is 5 mm.
The joints of the above parts are all arc transition, and the radius of the arc is 12 mm.
The right side surface of the third wing plate 4 forms an included angle with the vertical direction, the first boss 5 forms an included angle with the lower surface of the web plate 1, and the second boss 6 forms an included angle theta with the upper surface of the web plate 1, which are both 5 degrees. The wedge-shaped platform 7 forms an angle alpha of 15 degrees with the horizontal direction of the upper surface of the web 1.
The invention reduces the structural width of the three-stage door frame and enlarges the operation visual field. Through increasing pterygoid lamina thickness, compensatied the portal rigidity decline that leads to because of the pterygoid lamina width reduces.
The invention further reduces the weight of the portal frame and obviously saves materials under the condition that the rigidity of the portal frame is not obviously reduced.
The design that the left side of the second boss is positioned near the vertical bisector plays a stronger role in lateral supporting and positioning the roller.
The design that the third wing plate becomes thicker gradually from the end part to the root part improves the rigidity of the third wing plate and reduces the deformation caused by the extrusion of the roller wheel without increasing materials; the right flank of third alar plate 4 and the approximate design that corresponds from top to bottom of left surface of second alar plate 3 make and beat the time alignment from top to bottom, and not only level pleasing to the eye but also safety and stability are difficult for empting.
The invention increases the integral strength of the wing plate, eases the shape change of the connecting part, reduces the abrasion of the die in the hot rolling process and reduces the hot rolling difficulty and the production cost. The joints of all parts are in arc transition design, so that the structural strength is further improved.
Conventional technical knowledge in the art can be used for the details which are not described in the present invention.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a fork truck is hot rolling J shaped steel for portal, fork truck is hot rolling J shaped steel for portal includes: web (1), first pterygoid lamina (2), second pterygoid lamina (3) and third pterygoid lamina (4), its characterized in that, fork truck is hot rolling J shaped steel for portal still includes: a first boss (5), a second boss (6) and a wedge-shaped table (7); the first wing plate (2) and the second wing plate (3) are positioned at two ends of the lower surface of the web plate (1) and form a C-shaped structure with the web plate (1); the third wing plate (4) is positioned at the position, far away from one end of the first wing plate (2), of the upper surface of the web plate (1), the thickness of the third wing plate (4) is gradually increased from the end part to the root part, and the right side surface of the third wing plate (4) corresponds to the left side surface of the second wing plate (3) up and down; the first boss (5) is positioned at the joint of the lower surface of the web plate (1) and the left side surface of the second wing plate (3); the second boss (6) is positioned at the joint of the upper surface of the web plate (1) and the left side surface of the third wing plate (4), and the left side of the second boss (6) is close to the vertical bisector of the section steel; the wedge-shaped platform (7) is positioned at the connecting part of the upper end surface of the second wing plate (3) and the right side surface of the third wing plate (4).
2. The hot-rolled J-shaped steel for the forklift mast as claimed in claim 1, wherein the web (1) has a thickness of 10-13mm and a width of 163-167 mm; the thickness of the first wing plate (2) is 23-25mm, and the width is 33-36 mm; the thickness of the second wing plate (3) is 21-23mm, and the width is 33-36 mm; the average thickness of the third wing plate (4) is 18-20mm, and the width of the third wing plate is 31-35 mm; the width of the first boss (5) is 25-35mm, and the thickness is 2-5 mm; the width of the second boss (6) is 35-45mm, and the thickness is 2-5 mm.
3. The hot-rolled J-shaped steel for the forklift mast as claimed in claim 1, wherein the joints of all parts in the hot-rolled J-shaped steel for the forklift mast are all arc transitions, and the arc radius is between 3mm and 12 mm.
4. The J-shaped steel for the forklift mast according to claim 1, wherein the right side surface of the third wing plate (4) forms an angle with the vertical direction, the angle formed by the first boss (5) and the lower surface of the web plate (1), the angle formed by the second boss (6) and the upper surface of the web plate (1) is 2-5 degrees, and the angle formed by the wedge-shaped platform (7) and the upper surface of the web plate (1) is 5-15 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126806.5A CN112794243A (en) | 2021-01-29 | 2021-01-29 | Fork truck is hot rolling J shaped steel for portal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110126806.5A CN112794243A (en) | 2021-01-29 | 2021-01-29 | Fork truck is hot rolling J shaped steel for portal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112794243A true CN112794243A (en) | 2021-05-14 |
Family
ID=75812882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110126806.5A Pending CN112794243A (en) | 2021-01-29 | 2021-01-29 | Fork truck is hot rolling J shaped steel for portal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112794243A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663284A (en) * | 2013-11-13 | 2014-03-26 | 莱芜钢铁集团有限公司 | Hot-rolled J-type steel and application of hot-rolled J-type steel |
| CN204848142U (en) * | 2015-07-22 | 2015-12-09 | 山东钢铁股份有限公司 | Portal in fork truck |
| CN108591812A (en) * | 2018-06-22 | 2018-09-28 | 山东钢铁股份有限公司 | A kind of J-type forklift door frame hot-rolled steel section |
| CN215101805U (en) * | 2021-01-29 | 2021-12-10 | 山东钢铁股份有限公司 | Fork truck is hot rolling J shaped steel for portal |
-
2021
- 2021-01-29 CN CN202110126806.5A patent/CN112794243A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663284A (en) * | 2013-11-13 | 2014-03-26 | 莱芜钢铁集团有限公司 | Hot-rolled J-type steel and application of hot-rolled J-type steel |
| CN204848142U (en) * | 2015-07-22 | 2015-12-09 | 山东钢铁股份有限公司 | Portal in fork truck |
| CN108591812A (en) * | 2018-06-22 | 2018-09-28 | 山东钢铁股份有限公司 | A kind of J-type forklift door frame hot-rolled steel section |
| CN215101805U (en) * | 2021-01-29 | 2021-12-10 | 山东钢铁股份有限公司 | Fork truck is hot rolling J shaped steel for portal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5314223B2 (en) | Multistory parking | |
| AU2011255898B2 (en) | Method for press-forming l-shaped components | |
| CA2983404C (en) | Pressed component manufacturing method, pressed component, and press apparatus | |
| CN215101805U (en) | Fork truck is hot rolling J shaped steel for portal | |
| CN112794243A (en) | Fork truck is hot rolling J shaped steel for portal | |
| CN103663284B (en) | A kind of hot rolling J section steel and application thereof | |
| CN113579658A (en) | Steel plate deformation process | |
| CN206278159U (en) | A kind of pure electronic logistic car body frame structure for automotive | |
| CN112777528A (en) | Fork truck is hot rolling C shaped steel for portal | |
| CN102935865A (en) | Automobile side outer panel threshold area structure and design method thereof | |
| CN216801191U (en) | Downwards-pressing and upwards-pulling integrated passenger vehicle frame shape correcting mechanism | |
| CN210878296U (en) | Long and large aluminum profile material splicing tool | |
| CN211564777U (en) | Special tool for side wall of straddle type monorail car | |
| CN208050759U (en) | A kind of double short side corner line riveting mechanisms of roll-type freezer liner | |
| CN103557428A (en) | Hot-rolled inequilateral channel steel and application thereof | |
| CN214109427U (en) | Forklift round-deformation front upright column profiled bar structure | |
| CN208050767U (en) | A kind of double short side corner line riveting mechanisms of the freezer liner with lateral pressure wheel | |
| CN215666636U (en) | Upper bolster structure of rope-hanging-preventing grab bucket | |
| CN112605292A (en) | Structure is rolled up in sewing up that stretcher was used is connect to aluminium | |
| CN204848142U (en) | Portal in fork truck | |
| CN221210369U (en) | Device for auxiliary welding of cold-formed steel | |
| CN219025467U (en) | Special frock suitable for correction of general open wagon bottom side door and detection | |
| CN212356435U (en) | Lifting device of fork | |
| CN216632170U (en) | Shaping and edge rolling production equipment | |
| CN216149023U (en) | Baffle riveting blend stop for mahjong machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |