CN104439979A - Plate type standard knot machining technology - Google Patents
Plate type standard knot machining technology Download PDFInfo
- Publication number
- CN104439979A CN104439979A CN201410756722.XA CN201410756722A CN104439979A CN 104439979 A CN104439979 A CN 104439979A CN 201410756722 A CN201410756722 A CN 201410756722A CN 104439979 A CN104439979 A CN 104439979A
- Authority
- CN
- China
- Prior art keywords
- standard knot
- hole
- plate
- main limb
- holes
- 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.)
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Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000003754 machining Methods 0.000 title abstract description 6
- 241000251468 Actinopterygii Species 0.000 claims description 12
- 238000003801 milling Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
Abstract
The invention discloses a plate type standard knot machining technology. After being welded integrally, standard knots are machined, a two-end power head lathe is used, end surfaces are milled at first, and then boring holes are aligned. Parallelism of two end surfaces of a single plate which is positioned and machined in a one-step clamping mode is smaller than 0.2mm after the single plate is measured, the perpendicularity of the end surfaces and a main limb is 0.1mm, and the machining precision and the position precision of various holes and the end surfaces are guaranteed. Each four single plates are assembled into a standard knot, when the standard knots are assembled together by hinge pins to obtain an object with the height of 40 meters, and the perpendicularity deviation of the object which is measured by a theodolite is smaller than 50mm. The plate type standard knot machining technology completely meets requirements on the national standard; and after a complete machine is tested, the stability of the complete machine is quite high.
Description
Technical field
The present invention relates to the manufacturing process of standard knot, be specifically related to a kind of chip standard knot processing technology.
Background technology
Along with the extensive use of building machinery, derrick crane is the indispensable building machinery of building industry.The standard knot of derrick crane is divided into monoblock type standard knot and chip standard knot, chip standard knot, due to convenient transportation, stores advantages such as occupying little space, is widely adopted in recent years, and particularly large-scale derrick crane chip standard knot application is more extensive.Chip standard knot by four independently L-type rigid frame form, four L-type rigid frames to be linked together composition standard knot by hinged bolts.As shown in Figure 1, diameter on the hole of the Φ D3 that is that to be 2 diameters on the hole of Φ D2, main limb respectively by 3 diameters on the main limb both ends of the surface of L-type rigid frame and main limb be under normal circumstances, fish platee is the hole of Φ D1, the hole of 3 diameters on gusset plate to be 4 diameters on Φ D2 hole, connecting plate be φ D2 is worked into the size of drawing requirement then the L-type steelframe that main limb, fish platee, diagonal web member, connecting plate and gusset plate, horizon bar is welded by drawing respectively.This chip standard knot is generally taked first by good for the hole machined on gusset plate and main limb and fish platee, then in frock, horizon bar is used by bearing pin location each other by several, diagonal web members etc. are welded into an entirety, although take rational Current Voltage and welding sequence but the distortion that welding and residual stress cause cannot be eliminated all the time, be the requirement that 2.5mm can not meet for 1mm on drawing through measuring the monolithic both ends of the surface depth of parallelism, end face and main limb perpendicularity are 1.5mm(drawing requirement 0.5mm), by the time a standard knot is assembled into by every four, when then the assembling of each standard knot being installed to 40 meters of height with bearing pin, accumulation through error superposes, can see there is significantly larger gap between both ends of the surface, with its perpendicularity deviation of transit survey generally at about 180mm, the requirement (answering≤160mm when 40 meters) of GB/T5031-2008 " derrick crane " 5.2.3 cannot be met, mounted tower body operationally rocking property is large, directly affect the stable of complete machine.Described GB/T5031-2008 " derrick crane " 5.2.3 particular content is: unloaded, under wind speed is not more than 3m/s state, the side direction perpendicularity franchise of separate state tower body (or under attachment state the above tower body of the highest attachment point) axial line is 4/1000, and the perpendicularity franchise of the following tower body axial line of the highest attachment point is 2/1000.
Summary of the invention
The object of the invention is for overcoming the deficiencies in the prior art, a kind of chip standard knot processing technology is provided, take the overall postwelding of standard knot mach technique again, select two ends unit head lathe, the method for first end face milling centering bore hole again.The method can ensure the depth of parallelism of standard knot and end face and central axis degree, effectively improves the resistance to overturning of standard knot.
The technical scheme that the present invention takes is: a kind of chip standard knot processing technology, comprises the following steps:
(1) one end end face of the welding fish platee of main limb is first processed with milling machine to drawing requirement;
(2) fish platee, diagonal web member, the first connecting plate, the second connecting plate, first node plate, Section Point plate, the first horizon bar and the second horizon bar are welded as by drawing in frock L-type steelframe with main limb overall;
(3) overall L-type steelframe is arranged on the fixture of Digit Control Machine Tool;
(4) with the end face processed before welding for datum level, 2 the first holes on the tailgate that cures fish by drawing, 2 the 3rd holes on main limb, diameter, the tolerance in described first hole and the 3rd hole are identical;
(5) change the drill bit of the second bore dia, process 4 the second holes on the first connecting plate and the second connecting plate, and 3 the 4th holes on Section Point plate, diameter, the tolerance in described second hole and the 4th hole are identical;
(6) drill bit in removing step (5), changes milling head, the other end of main limb is machined to drawing technical requirement.
Digit Control Machine Tool in described step (3) selects two ends unit head lathe.
The invention has the beneficial effects as follows: through the monolithic of clamped one time location processing, through measuring monolithic both ends of the surface depth of parallelism < 0.2mm, end face and main limb perpendicularity are 0.1mm, ensure that the machining accuracy of each hole and end face, positional precision.A standard knot is assembled into equally, when then the assembling of each standard knot being installed to 40 meters of height with bearing pin, with its perpendicularity deviation of transit survey < 50mm by every four.Meet national standard requirement completely, try out stability through complete machine very good.
Accompanying drawing explanation
Fig. 1 is by chip standard knot structural front view of the present invention.
Fig. 2 is chip standard knot structure side view of the present invention.
Wherein, the 1, first horizon bar, the 2, first connecting plate, the 3, second connecting plate, 4, first node plate, 5, diagonal web member, the 6, second horizon bar, 7, main limb, 8, fish platee, 9, Section Point plate, 10, the first hole, the 11, second hole, 12, the 3rd hole, the 13, the 4th hole, the 14, the 3rd gusset plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of chip standard knot processing technology, comprises the following steps:
(1) one end A end face of main limb 7 is first processed to drawing requirement with milling machine;
(2) fish platee 8, diagonal web member 5, first connecting plate 2, second connecting plate 3, first node plate 4, Section Point plate 9, the 3rd gusset plate 14, first horizon bar 1 and the second horizon bar 6 are welded as by drawing in frock L-type steelframe with main limb 7 overall;
(3) overall L-type steelframe is arranged on the fixture of Digit Control Machine Tool;
(4) this end face has been processed before welding with the end face A(of main limb 7) for datum level, adopting diameter to be the drill bit of Φ D1 2 diameters that to cure fish by drawing on tailgate 8 is first hole 10 of Φ D1, on main limb 7,2 diameters are the 3rd hole 12 of φ D3, and described first hole 10 and the 3rd hole 12 size, tolerance are identical;
(5) changing diameter is φ D2 drill bit, 4 diameters processed on the first connecting plate 2 and the second connecting plate 3 are second hole 11 of φ D2, and 3 diameters on first node plate 4 are φ D2 the 4th hole 13, diameter, the tolerance in described second hole 11 and the 4th hole 13 are identical; ;
(6) unloading diameter is φ D2 drill bit, changes milling head, the other end of main limb 7 is machined to drawing technical requirement, namely completes the processing of monolithic standard knot.
Digit Control Machine Tool in described step (3) selects two ends unit head lathe.
The present embodiment is through the monolithic of clamped one time location processing, and through measuring monolithic both ends of the surface depth of parallelism < 0.2mm, end face and main limb perpendicularity are 0.1mm, ensure that the machining accuracy of each hole and end face, positional precision.A standard knot is assembled into equally, when then the assembling of each standard knot being installed to 40 meters of height with bearing pin, with its perpendicularity deviation of transit survey < 50mm by every four.Meet national standard requirement completely, try out stability through complete machine very good.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (2)
1. a chip standard knot processing technology, is characterized in that, comprises the following steps:
(1) one end end face of the welding fish platee of main limb is first processed with milling machine to drawing requirement;
(2) fish platee, diagonal web member, the first connecting plate, the second connecting plate, first node plate, Section Point plate, the 3rd gusset plate, the first horizon bar and the second horizon bar are welded as by drawing in frock L-type steelframe with main limb overall;
(3) overall L-type steelframe is arranged on the fixture of Digit Control Machine Tool;
(4) with the end face processed before welding for datum level, 2 the first holes on the tailgate that cures fish by drawing, 2 the 3rd holes on main limb, diameter, the tolerance in described first hole and the 3rd hole are identical;
(5) change the drill bit of the second bore dia, process 4 the second holes on the first connecting plate and the second connecting plate, and 3 the 4th holes on Section Point plate, diameter, the tolerance in described second hole and the 4th hole are identical;
(6) drill bit in removing step (5), changes milling head, the other end of main limb is machined to drawing technical requirement.
2. chip standard knot processing technology as claimed in claim 1, is characterized in that: the Digit Control Machine Tool in described step (3) selects two ends unit head lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756722.XA CN104439979B (en) | 2014-12-10 | 2014-12-10 | Plate type standard knot machining technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756722.XA CN104439979B (en) | 2014-12-10 | 2014-12-10 | Plate type standard knot machining technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104439979A true CN104439979A (en) | 2015-03-25 |
| CN104439979B CN104439979B (en) | 2017-02-22 |
Family
ID=52887145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756722.XA Active CN104439979B (en) | 2014-12-10 | 2014-12-10 | Plate type standard knot machining technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN104439979B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946167A (en) * | 2017-05-09 | 2017-07-14 | 徐州建机工程机械有限公司 | A kind of New-type plate fish tail board component |
| CN107363482A (en) * | 2017-07-25 | 2017-11-21 | 湖北江汉建筑工程机械有限公司 | A kind of derrick crane chip production process for standard knot and frock |
| CN110480267A (en) * | 2019-08-19 | 2019-11-22 | 株洲天一自动焊接装备有限公司 | A kind of automatization processing method and machining production line of chip standard knot |
| CN110745718A (en) * | 2019-09-19 | 2020-02-04 | 珠海鉴安检测技术有限公司 | Deviation rectifying method for tower crane |
| CN111590227A (en) * | 2020-06-03 | 2020-08-28 | 广东高沃科技有限公司 | Method for processing oxygen injector of vortex thruster |
| CN112620993A (en) * | 2020-12-08 | 2021-04-09 | 山东易林智能装备有限公司 | Welding method for chip type standard knot production line |
| CN112661028A (en) * | 2020-12-30 | 2021-04-16 | 江西中天智能装备股份有限公司 | Tower crane standard festival and connecting device |
| CN113666277A (en) * | 2021-08-20 | 2021-11-19 | 山东中诚机械租赁有限公司 | Jacking system protection device |
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| US4016974A (en) * | 1974-11-08 | 1977-04-12 | Hans Tax | Package for transporting units of a modular crane |
| CN2286746Y (en) * | 1997-01-29 | 1998-07-29 | 水利部烟台水工机械厂 | Tower-body standard section |
| CN201031113Y (en) * | 2007-04-29 | 2008-03-05 | 山东富友有限公司 | Column crane type mast section |
| CN102581579A (en) * | 2012-03-30 | 2012-07-18 | 湖南衡利重工机械有限公司 | Process for producing standard sections of tower cranes |
-
2014
- 2014-12-10 CN CN201410756722.XA patent/CN104439979B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4016974A (en) * | 1974-11-08 | 1977-04-12 | Hans Tax | Package for transporting units of a modular crane |
| CN2286746Y (en) * | 1997-01-29 | 1998-07-29 | 水利部烟台水工机械厂 | Tower-body standard section |
| CN201031113Y (en) * | 2007-04-29 | 2008-03-05 | 山东富友有限公司 | Column crane type mast section |
| CN102581579A (en) * | 2012-03-30 | 2012-07-18 | 湖南衡利重工机械有限公司 | Process for producing standard sections of tower cranes |
Non-Patent Citations (2)
| Title |
|---|
| 南京市第一建筑工程公司 等: "QTZ25／40组合塔式起重机塔身标准节的制造", 《建筑机械》 * |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946167A (en) * | 2017-05-09 | 2017-07-14 | 徐州建机工程机械有限公司 | A kind of New-type plate fish tail board component |
| CN107363482A (en) * | 2017-07-25 | 2017-11-21 | 湖北江汉建筑工程机械有限公司 | A kind of derrick crane chip production process for standard knot and frock |
| CN107363482B (en) * | 2017-07-25 | 2019-04-02 | 湖北江汉建筑工程机械有限公司 | A kind of derrick crane chip production process for standard knot and tooling |
| CN110480267A (en) * | 2019-08-19 | 2019-11-22 | 株洲天一自动焊接装备有限公司 | A kind of automatization processing method and machining production line of chip standard knot |
| CN110745718A (en) * | 2019-09-19 | 2020-02-04 | 珠海鉴安检测技术有限公司 | Deviation rectifying method for tower crane |
| CN110745718B (en) * | 2019-09-19 | 2020-09-18 | 珠海鉴安检测技术有限公司 | Deviation rectifying method for tower crane |
| CN111590227A (en) * | 2020-06-03 | 2020-08-28 | 广东高沃科技有限公司 | Method for processing oxygen injector of vortex thruster |
| CN112620993A (en) * | 2020-12-08 | 2021-04-09 | 山东易林智能装备有限公司 | Welding method for chip type standard knot production line |
| CN112620993B (en) * | 2020-12-08 | 2021-08-17 | 山东易林智能装备有限公司 | Welding method for chip type standard knot production line |
| CN112661028A (en) * | 2020-12-30 | 2021-04-16 | 江西中天智能装备股份有限公司 | Tower crane standard festival and connecting device |
| CN113666277A (en) * | 2021-08-20 | 2021-11-19 | 山东中诚机械租赁有限公司 | Jacking system protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104439979B (en) | 2017-02-22 |
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| CB02 | Change of applicant information |
Address after: 250012 Shandong city of Ji'nan province Zhangqiu Mingshui ocher Hill Industrial Park Applicant after: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. Address before: 250012 Shandong city of Ji'nan province Zhangqiu Mingshui ocher Hill Industrial Park Applicant before: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhichao Inventor after: Jin Yixin Inventor after: Luo Jianfeng Inventor after: Han Aijun Inventor before: Jin Yixin Inventor before: Luo Jianfeng Inventor before: Han Aijun |
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Effective date of registration: 20160729 Address after: 250200 Shandong province Zhangqiu Mingshui West Ring Road No. 8 Applicant after: Wang Zhichao Applicant after: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. Address before: 250012 Shandong city of Ji'nan province Zhangqiu Mingshui ocher Hill Industrial Park Applicant before: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 250200 Shandong province Zhangqiu Mingshui West Ring Road No. 8 Co-patentee after: Dahan Technology Co.,Ltd. Patentee after: Wang Zhichao Address before: 250200 Shandong province Zhangqiu Mingshui West Ring Road No. 8 Co-patentee before: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. Patentee before: Wang Zhichao |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200908 Address after: 250200 Cheshan Industrial Park, Mingshui Economic Development Zone, Zhangqiu District, Jinan City, Shandong Province Patentee after: Dahan Technology Co.,Ltd. Address before: 250200 Shandong province Zhangqiu Mingshui West Ring Road No. 8 Co-patentee before: Dahan Technology Co.,Ltd. Patentee before: Wang Zhichao |
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| TR01 | Transfer of patent right |