CN115703105B - Off-line whole spraying process for automobile chassis and double-layer transfer crown block - Google Patents
Off-line whole spraying process for automobile chassis and double-layer transfer crown block Download PDFInfo
- Publication number
- CN115703105B CN115703105B CN202110901304.5A CN202110901304A CN115703105B CN 115703105 B CN115703105 B CN 115703105B CN 202110901304 A CN202110901304 A CN 202110901304A CN 115703105 B CN115703105 B CN 115703105B
- Authority
- CN
- China
- Prior art keywords
- crown block
- lifting
- automobile chassis
- chassis
- track
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 15
- 238000005507 spraying Methods 0.000 title claims abstract description 12
- 239000003973 paint Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000007921 spray Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Abstract
The invention provides an off-line whole spraying process of an automobile chassis and a double-layer transfer crown block, wherein the double-layer crown block comprises the following structures: the upper crown block is installed on the upper crown block track, the lower crown block is installed on the lower crown block track, and the lower crown block track is arranged below the upper crown block track and the distance between the upper crown block track and the lower crown block track can allow the upper crown block to smoothly pass through when the upper crown block lifts the automobile chassis. The lifting hook is arranged on the lifting rope of the upper crown block and the lower crown block, an anti-falling lock chain is arranged on the lifting hook, one end of the anti-falling lock chain is arranged at the upper end of the lifting hook, and the other end of the anti-falling lock chain is arranged on the hook head of the lifting hook. The invention effectively solves the problem of offline transportation of the chassis and the problem that the production process cannot reach the project standard.
Description
Technical Field
The invention belongs to the technical field of crown block equipment on an automobile chassis production line, and particularly relates to an off-line whole spraying process of an automobile chassis and a double-layer transfer crown block.
Background
At present, on an automobile chassis manufacturing production line, indexes of an automobile chassis assembly are as follows: the salt spray resistant duration is more than or equal to 500h, the aging resistant duration is more than or equal to 500h, the salt spray resistant duration of other chassis parts is more than or equal to 100h, and the requirements of the chassis coating process on the salt spray resistant duration and the aging resistant duration of more than 1000h in some projects cannot be met.
Therefore, the offline of the chassis of the two general assembly lines of the current general assembly plant faces two problems: firstly, the automobile chassis on the assembly line cannot be transported to a whole gunning line; second, existing production processes cannot meet project standards.
The invention comprises the following steps:
based on the defects, the invention provides an off-line whole spraying process of an automobile chassis and a double-layer transfer crown block, which effectively solve the problem of off-line transfer of the chassis and the problem that the production process cannot reach project standards.
The invention is realized by the following technical scheme:
in a first aspect, an off-line whole spray process for an automobile chassis includes:
step one: lifting and transferring the automobile chassis to a whole gunning line by utilizing lifting and transferring equipment;
step two: transferring the automobile chassis subjected to paint supplement to a drying chamber by utilizing a transfer device for drying;
step three: transferring the dried automobile chassis to a forced cooling chamber by utilizing a transfer device for forced cooling;
step four: and lifting and transferring the forced-cooled automobile chassis to an assembly line by using lifting and transferring equipment.
Further, the lifting and transferring equipment is a double-layer transferring crown block.
Further, the transfer device is a skid roller machine.
In a second aspect, a double-deck transfer crown block as described above, comprising: the upper crown block is installed on the upper crown block track, the lower crown block is installed on the lower crown block track, and the lower crown block track is arranged below the upper crown block track and the distance between the upper crown block track and the lower crown block track can allow the upper crown block to smoothly pass through when the upper crown block lifts the automobile chassis.
Further, the upper crown block is used for hoisting the first assembly line automobile chassis, and the lower crown block is used for hoisting the second assembly line automobile chassis.
Further, the method further comprises the following steps: the lifting hook is arranged on the lifting rope of the upper crown block and the lower crown block, an anti-falling lock chain is arranged on the lifting hook, one end of the anti-falling lock chain is arranged at the upper end of the lifting hook, and the other end of the anti-falling lock chain is arranged on the hook head of the lifting hook.
Further, the method further comprises the following steps: the positioning device comprises positioning holes and positioning pins, wherein the positioning holes are respectively formed in an upper crown block and a lower crown block, the positioning pins are respectively arranged on a hanging bracket, and the hanging bracket is used for bearing an automobile chassis.
Further, a plurality of lifting hook points are arranged on the hanging frame and are used for lifting by utilizing the lifting hook points at different points when lifting is performed on different chassis.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the double-layer transfer crown block and the operation mode design thereof, the purpose that the automobile chassis of the first line and the second line on the assembly line are transferred to the whole gunning paint line under the condition of no mutual interference is achieved; through the arrangement of the lifting hook and the anti-falling chain, the lifting frame can be effectively fixed in an anti-falling way; the lifting frame is provided with the locating pin and the crown block is provided with the locating hole, so that the lifted automobile chassis can be effectively fixed, and the lifting frame is prevented from shaking in the transferring process; the automobile chassis can be effectively transferred on the whole spray ring line through the arrangement of the skid roller bed.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an off-line whole spray process flow of an automobile chassis;
FIG. 2 is a schematic diagram of an assembly line and overall spray line station layout structure according to the present invention;
FIG. 3 is a schematic diagram of a double-deck overhead travelling crane according to the present invention;
FIG. 4 is a schematic view of the double-deck overhead travelling crane according to the present invention in a dropped state;
FIG. 5 is a schematic view of a hook according to the present invention;
FIG. 6 is a schematic view of a hanger structure according to the present invention;
FIG. 7 is a schematic view showing the abutting state of the positioning hole and the positioning pin according to the present invention;
FIG. 8 is a schematic view showing the fit of the positioning hole and the positioning pin according to the present invention.
Description of the reference numerals
2-double-layer crown block, 201-upper crown block track, 202-upper crown block, 2021-locating hole, 203-lower crown block track, 204-lower crown block, 205-hanger, 2051-locating pin, 206-lifting hook, 2061-anti-disengaging chain, 3-automobile chassis, 301-first assembly line chassis, 302-second assembly line chassis, 401-first skid roller bed, 402-second skid roller bed, 5-chain shifter, 6-whole spray paint repair chamber, 7-drying chamber, 8-cold strength chamber and 9-turn-over area.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
FIG. 1 is a schematic diagram of an off-line whole spray process flow of an automobile chassis; FIG. 2 is a schematic diagram of an assembly line and overall spray line station layout structure according to the present invention; as shown in fig. 1 and 2, an off-line whole spray process for an automobile chassis includes:
step one 101: turning over 3 the automobile chassis in a turning over area 9; lifting and overturning can be performed by using the crown block, and overturning is the process flow requirement;
step two 102: transferring the overturned automobile chassis to a whole gunning paint spraying loop by using a double-layer crown block 2; here, the upper crown block 202 and the lower crown block 203 of the double-layer crown block may be respectively hung to form a two-wire automobile chassis, and the first assembly line chassis 301 and the second assembly line chassis 302 may be respectively placed on the first skid roller 401 and the second skid roller 402 of the whole spray line;
step three 103: the skid roller machine moves the automobile chassis to the chain shifter 5, and the chain shifter 5 sequentially moves the first assembly line chassis 301 and the second assembly line chassis 302 to the whole paint spraying and repairing room 6; in the whole paint spraying and repairing chamber 6, three skid rollers are arranged, and the spraying residence time of each skid roller is 3min, so that the whole paint spraying and repairing chamber needs to be subjected to the time of 9 min;
step four 104: conveying the automobile chassis subjected to paint repair to a drying chamber 7 by utilizing a skid roller machine for drying; the drying time in the drying chamber 7 is 20min;
step five 105: transferring the dried automobile chassis to a forced cooling chamber 8 by utilizing a skid rolling machine for forced cooling; the forced cooling time is 6min;
step five 106: and lifting the automobile chassis subjected to forced cooling by utilizing the double-layer crown block and transferring the automobile chassis to an assembly line.
FIG. 3 is a schematic diagram of a double-deck overhead travelling crane according to the present invention; FIG. 4 is a schematic view of the double-deck overhead travelling crane according to the present invention in a dropped state; a double-deck transfer crown block as described above, comprising: an upper crown block track 201, a lower crown block track 203, an upper crown block 202 and a lower crown block 204, wherein the upper crown block is arranged on the upper crown block track, the lower crown block is arranged on the lower crown block track, and the lower crown block track is arranged below the upper crown block track;
the distance between the upper crown block track and the lower crown block track can allow the upper crown block to smoothly pass through when the upper crown block lifts the automobile chassis, and the specific size and height are as follows in practical application: the underslung height of the factory building is 10m, the total height of the steel structure upright post of the crown block is 9.7m, the self height of the crane is 1.6m, the chassis height is 1.35m, and the minimum height of the chassis and the crown block is 3m; so the remaining space=9.7 m-3m-3 m=3.7 m can be utilized; the first-line overhead travelling crane lifts the chassis and then ascends to the upper limit, and the safety distance between the lowest point of the chassis and the two-layer net is 500mm; the track beam of the two-wire overhead travelling crane is 4m away from the ground, and when the travelling crane lifts the chassis and ascends to the upper limit, the lowest point of the chassis is 2650mm away from the ground.
Of course, in the setting of the width, the chassis is offline: the outer side dimension of the steel structure is 15.86m, the existing width is about 11.5m, the south Duan Lizhu of the turned body is required to be removed, the north is moved for 3m for replanting, and the steel structure is used as a stand column shared by a turning machine and an off-line crown block. Chassis return: the north end rail of the engine EMS and the two-layer protection net are synchronously moved south by 2m. After transformation, the double-layer crown block provides a construction width of 11m+5m=16m, and meets the construction width requirement of 15.86 m.
The upper crown block is used for hoisting the first assembly line automobile chassis, and the lower crown block is used for hoisting the second assembly line automobile chassis. The lifting hooks 206 are respectively arranged at the lower ends of the steel ropes of the upper crown block and the lower crown block, the anti-falling lock chains 2061 are also arranged on the lifting hooks, one ends of the anti-falling lock chains are arranged at the upper ends of the lifting hooks, the other ends of the anti-falling lock chains are arranged on the hook heads of the lifting hooks, the installation mode of the anti-falling lock chains and the hook heads of the lifting hooks is that the pin holes are matched with the pins, and one ends of the pins are fixed by nuts.
When lifting the automobile chassis, the automobile chassis is hoisted on the hanging frame 205, and then is hoisted by the double-layer overhead travelling crane, a plurality of lifting points are also arranged on the hanging frame, lifting rings are arranged on each lifting point, and lifting points at different positions are utilized for guaranteeing the gravity center balance in the lifting process aiming at the automobile chassis of different types.
Two positioning pins 2051 are further arranged on the upper end face of the hanging frame, corresponding positioning holes 2021 are formed in the crown block, and the two positioning pins and the crown block are mutually matched and installed for placing the lifted automobile chassis to shake in the air, so that the transfer stability is improved.
The running time of each action of the double-layer crown block is shown in the following table:
the running speed of the cart is designed to be 80m/min, the actual running speed is 60m/min, and if the running beat is insufficient, the running speed of the cart is increased to 80m/min.
Therefore, the linear crown block operates at the fastest speed of 60m/min, and the theoretical beat is about 308s once per cycle of operation.
According to the double-layer transfer crown block and the operation mode design thereof, the purpose that the automobile chassis of the first line and the second line on the assembly line are transferred to the whole gunning paint line under the condition of no mutual interference is achieved; through the arrangement of the lifting hook and the anti-falling chain, the lifting frame can be effectively fixed in an anti-falling way; the lifting frame is provided with the locating pin and the crown block is provided with the locating hole, so that the lifted automobile chassis can be effectively fixed, and the lifting frame is prevented from shaking in the transferring process; the automobile chassis can be effectively transferred on the whole spray ring line through the arrangement of the skid roller bed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. An off-line whole spraying process for an automobile chassis is characterized by comprising the following steps of:
step one: lifting and transferring the automobile chassis to a whole gunning line by utilizing lifting and transferring equipment;
step two: transferring the automobile chassis subjected to paint supplement to a drying chamber by utilizing a transfer device for drying;
step three: transferring the dried automobile chassis to a forced cooling chamber by utilizing a transfer device for forced cooling;
step four: hoisting and transferring the forced-cooled automobile chassis to an assembly line by using hoisting and transferring equipment;
the lifting and transferring equipment is a double-layer transferring crown block; it comprises the following steps: the upper crown block is arranged on the upper crown block track, the lower crown block is arranged on the lower crown block track, and the lower crown block track is arranged below the upper crown block track, and the distance from the upper crown block track to the lower crown block track can allow the upper crown block to smoothly pass through when the upper crown block lifts the automobile chassis; it also includes: the lifting ropes of the upper crown block and the lower crown block are respectively provided with the lifting hook, the lifting hooks are provided with an anti-falling chain, one end of the anti-falling chain is arranged at the upper end of the lifting hook, and the other end of the anti-falling chain is arranged on the hook head of the lifting hook; it also includes: the positioning holes are respectively formed in the upper crown block and the lower crown block, the positioning pins are respectively arranged on the hanging frame, and the hanging frame is used for bearing the chassis of the automobile; the upper crown block is used for hoisting the first assembly line automobile chassis, and the lower crown block is used for hoisting the second assembly line automobile chassis;
the transfer device is a skid roller machine.
2. The off-line whole spraying process of the automobile chassis according to claim 1, wherein a plurality of lifting hook points are arranged on the lifting frame and are used for lifting by using the lifting hook points at different points when lifting different chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110901304.5A CN115703105B (en) | 2021-08-06 | 2021-08-06 | Off-line whole spraying process for automobile chassis and double-layer transfer crown block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110901304.5A CN115703105B (en) | 2021-08-06 | 2021-08-06 | Off-line whole spraying process for automobile chassis and double-layer transfer crown block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115703105A CN115703105A (en) | 2023-02-17 |
| CN115703105B true CN115703105B (en) | 2023-12-29 |
Family
ID=85179015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110901304.5A Active CN115703105B (en) | 2021-08-06 | 2021-08-06 | Off-line whole spraying process for automobile chassis and double-layer transfer crown block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115703105B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117174632B (en) * | 2023-11-03 | 2024-01-30 | 泓浒(苏州)半导体科技有限公司 | Positioning correction device and positioning correction method for semiconductor wafer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003213491A (en) * | 2002-01-28 | 2003-07-30 | Taikisha Ltd | Method and equipment for controlling body floatage |
| TW201321288A (en) * | 2011-11-30 | 2013-06-01 | Inotera Memories Inc | Overhead rail guided transport system and implementation method thereof |
| CN105645057A (en) * | 2016-01-29 | 2016-06-08 | 中民筑友有限公司 | Prefabricated part production and transportation system |
| CN105712201A (en) * | 2014-12-01 | 2016-06-29 | 陕西重型汽车有限公司 | Chassis turning-over suspension bracket and operation method thereof |
| CN206358252U (en) * | 2016-11-25 | 2017-07-28 | 上汽通用五菱汽车股份有限公司 | A kind of frame assembly is reached the standard grade system |
| CN107552340A (en) * | 2017-09-08 | 2018-01-09 | 中国第汽车股份有限公司 | A kind of truck chassis entirety lacquer spraying technique method |
| TWM580080U (en) * | 2019-02-01 | 2019-07-01 | 陳志民 | Crane system with emergency power off device |
| CN212895931U (en) * | 2020-06-23 | 2021-04-06 | 中交第二航务工程局有限公司 | Rail type double-layer transport vehicle |
| CN216105672U (en) * | 2021-08-06 | 2022-03-22 | 陕西重型汽车有限公司 | Double-deck overhead traveling crane of transporting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538994B (en) * | 2013-09-29 | 2015-03-04 | 中国矿业大学 | Adjustable intermediate disk body of large double-layer cage and adjusting and moving method thereof |
-
2021
- 2021-08-06 CN CN202110901304.5A patent/CN115703105B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003213491A (en) * | 2002-01-28 | 2003-07-30 | Taikisha Ltd | Method and equipment for controlling body floatage |
| TW201321288A (en) * | 2011-11-30 | 2013-06-01 | Inotera Memories Inc | Overhead rail guided transport system and implementation method thereof |
| CN105712201A (en) * | 2014-12-01 | 2016-06-29 | 陕西重型汽车有限公司 | Chassis turning-over suspension bracket and operation method thereof |
| CN105645057A (en) * | 2016-01-29 | 2016-06-08 | 中民筑友有限公司 | Prefabricated part production and transportation system |
| CN206358252U (en) * | 2016-11-25 | 2017-07-28 | 上汽通用五菱汽车股份有限公司 | A kind of frame assembly is reached the standard grade system |
| CN107552340A (en) * | 2017-09-08 | 2018-01-09 | 中国第汽车股份有限公司 | A kind of truck chassis entirety lacquer spraying technique method |
| TWM580080U (en) * | 2019-02-01 | 2019-07-01 | 陳志民 | Crane system with emergency power off device |
| CN212895931U (en) * | 2020-06-23 | 2021-04-06 | 中交第二航务工程局有限公司 | Rail type double-layer transport vehicle |
| CN216105672U (en) * | 2021-08-06 | 2022-03-22 | 陕西重型汽车有限公司 | Double-deck overhead traveling crane of transporting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115703105A (en) | 2023-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115703105B (en) | Off-line whole spraying process for automobile chassis and double-layer transfer crown block | |
| CN101434366B (en) | Hoisting tool and hoisting method for column component | |
| CN216105672U (en) | Double-deck overhead traveling crane of transporting | |
| CN202671169U (en) | Flip tool for barrel-type workpiece | |
| CN103086276B (en) | Construction method for hoisting bridge type crane in high-rise well tower type building | |
| CN101284626A (en) | Additional weight hoisting method | |
| CN107401288A (en) | A kind of booster stations lift transhipment technique | |
| CN107140547A (en) | The traveller gantry of installation activity bottom plate | |
| CN110439292A (en) | Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss | |
| CN1193150C (en) | Block curtain wall hanging and carrying and installing system | |
| DE60018020D1 (en) | Apparatus for lifting and handling loads for an aluminum manufacturing plant | |
| CN103193152B (en) | Hoisting device and method of chain bucket ship unloader | |
| CN211640410U (en) | PC component offline processing procedure integrated system | |
| CN112023496B (en) | Hoisting method of rotary drum filter in alumina engineering | |
| CN101381057B (en) | Large-sized gantry crane | |
| CN211034856U (en) | Large-scale diameter-variable rotatable hanging beam | |
| CN206783133U (en) | The tower carrying implement that a kind of lifting handling for wind-power tower works | |
| CN206915601U (en) | The traveller gantry of installation activity bottom plate | |
| CN219839952U (en) | Pier body hangs rail installation operation combination formula removal lift platform device | |
| CN206188205U (en) | Hoist device is used in prefabricated piping lane upset | |
| CN213738457U (en) | Lifting maintenance platform for loading, unloading and carrying machinery | |
| CN111687800B (en) | Electric locomotive rod member maintenance tool and method | |
| CN218968624U (en) | Tubular busbar top lifting appliance special for wind power stepped concrete tower | |
| CN211521372U (en) | Hoisting device for gantry conveying | |
| CN210528275U (en) | Hanging platform convenient to assemble and move in crown block beam and slide wire maintenance |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |