CN110329929B - Balancing weight and spraying method thereof - Google Patents
Balancing weight and spraying method thereof Download PDFInfo
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- CN110329929B CN110329929B CN201910704824.XA CN201910704824A CN110329929B CN 110329929 B CN110329929 B CN 110329929B CN 201910704824 A CN201910704824 A CN 201910704824A CN 110329929 B CN110329929 B CN 110329929B
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- 238000005507 spraying Methods 0.000 title claims abstract description 49
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 13
- 238000005498 polishing Methods 0.000 claims abstract description 11
- 238000005238 degreasing Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000003973 paint Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000002689 soil Substances 0.000 claims description 10
- 239000004519 grease Substances 0.000 claims description 9
- 238000003466 welding Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 150000001282 organosilanes Chemical class 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 244000137852 Petrea volubilis Species 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 239000000945 filler Substances 0.000 description 15
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000272165 Charadriidae Species 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- 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
- B66C23/72—Counterweights or supports for balancing lifting couples
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning In General (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a balancing weight and a spraying method thereof, comprising the following steps: the filling material and the frame body are rectangular, the upper end of the frame body is provided with a concave operation platform, the bottom plate and the surrounding plate enclose a containing cavity, the vertical plates are oppositely arranged at two sides of the inside of the containing cavity, the containing cavity is divided into three independent middle cavities, and the middle cavities are internally provided with partition plates and are divided into a plurality of small containing cavities. Meanwhile, the balancing weight is sprayed through the working procedures of polishing, cleaning, degreasing, dedusting, cleaning, static electricity removing, drying, heating, primer spraying, fine finish spraying, curing, forced cooling and the like, so that the spraying effect is outstanding, and the improvement of the processing efficiency is facilitated. Meanwhile, the groove operation platform is arranged in the middle of the balancing weight, the counter weights of the installation platforms at the two ends of the operation platform are heavy, a balancing effect is achieved on the balancing weight, balancing stability of the balancing weight is improved conveniently, the movement inertia of the filling block to the balancing weight is reduced due to the arrangement of the small containing cavity in the containing cavity, the filling material is prevented from loosening and moving in the containing cavity, and safety of the balancing weight is improved.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a balancing weight and a spraying method thereof.
Background
The stability is an important index of engineering machinery, and especially for heavy engineering machinery such as cranes, rotary drilling rigs and the like, the improvement of the stability of the machinery is one of important ways for reducing accidents. Weights are typically provided on the work machine to balance the forces on the machine to improve the stability performance of the machine.
The balancing weight is a balanced smooth piece of weight generally, but easy to one side skew when using and installing, when installing the balancing weight, the mounted position is higher, does not have safety precaution, and the balancing weight is easy to one side skew at the during operation simultaneously, and especially when the inclined plane is operated, the side skew is very serious, makes the focus skew appear the accident, and the inside filler of balancing weight is easy not hard up to take place to remove simultaneously, makes the focus unstable, easily appears the potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the balancing weight which is convenient to balance, improve stability and maintain operation and the spraying method thereof.
The technical scheme of the invention is as follows: the filling material fills the containing cavity of the frame body, and the filling material is a mixture of suspected soil and lead;
the frame body is rectangular and provided with a bottom plate, a cover plate, a coaming, a sealing plate and a vertical plate; the upper end of the frame body is provided with a concave operation platform, the bottom plate and the surrounding plate enclose a cavity, the vertical plates are oppositely arranged at two sides of the inside of the cavity, the cavity is divided into three independent middle cavities, the middle cavities are internally provided with a baffle plate and are divided into a plurality of small cavities, the small cavities are relatively distributed at two sides of the central line of the width direction of the balancing weight, the upper end face of the baffle plate is lower than the cover plate or the sealing plate, and the upper ends of the small cavities are communicated.
Further, the bounding wall includes preceding bounding wall, back bounding wall, left bounding wall and right bounding wall, and four bounding walls welded fastening each other, the lower terminal surface and the bottom plate welded fastening of bounding wall are equipped with the notch around, and the notch is equipped with the apron, and the apron both sides form sunken operation platform with the fixed welding of the side of riser, and sunken operation platform both sides are mounting platform, and the shrouding is located on the mounting platform.
Further, the front coaming, the left side plate and the right side plate extend upwards to form a cover plate and a sealing plate, and a rib plate is arranged between the extending end and the cover plate and between the extending end and the sealing plate.
Further, the vertical plate is fixedly welded with the inner side surfaces of the front coaming and the rear coaming, the lower end surface of the vertical plate is fixedly welded with the bottom plate, and the upper end surface of the vertical plate is leveled with the mounting platform.
Further, well cavity includes first well cavity, second well cavity and third well cavity, and first well cavity is located the both sides of second cavity with the third well cavity, is equipped with the support column relatively in the second well cavity, baffle and support column, baffle, riser or bounding wall fixed connection.
Further, the support column includes the supporting seat and is located the stay tube of supporting seat top, and the stay tube side is fixed welding with baffle side or terminal surface, and supporting seat and bottom plate fixed welding, the lower terminal surface of baffle erect on the supporting seat and fixed welding, and the baffle lower extreme is maked somebody a mere figurehead, makes little appearance chamber lower extreme intercommunication, is equipped with the cardboard in the capsule.
Further, the support column is provided with a through hole, an internal thread is arranged in the through hole, a mounting hole matched with the outer diameter of the support column is arranged on the cover plate, the support column penetrates through the cover plate, the upper end face of the support column is leveled with the cover plate, and the support column is in threaded connection with the lifting lug through the internal thread.
Further, the thickness of the partition plate is 0.1-10mm, and the lower end face of the partition plate is fixedly welded with the bottom plate.
Further, be equipped with the guardrail between mounting platform and the operation platform, be equipped with the otic placode on the mounting platform, back vision corridor lamp support is established to one side of otic placode.
The spraying method of the balancing weight comprises the following steps:
a) Polishing and supplementing soil, checking the flatness of the surface of a workpiece, polishing, filling the concave and gap with gray soil, and polishing again with sand paper after filling;
b) Removing grease and dust, namely treating the dust-removed workpiece by adopting a phosphorus-free degreasing solution, removing grease on the surface of the workpiece, cleaning the surface of the workpiece by adopting tap water, removing residual grease and the phosphorus-free degreasing solution on the surface of the workpiece by adopting pure water, and removing rust powder on the surface of the workpiece by adopting organosilane;
c) Cleaning and removing static electricity, namely cleaning the surface of the workpiece cleaned by pure water in the step B) at least twice, removing static electricity, residual rust powder and organosilane residual liquid on the workpiece in a spraying or immersion cleaning mode, then manually supplementing the rust powder and the residual liquid at the gap of the cleaned workpiece, and draining water after cleaning;
d) Drying and heating, namely drying the drained workpiece by adopting hot air at 100-300 ℃, particularly drying the joint gaps, and forcibly cooling the dried workpiece by adopting a powerful fan to reduce the temperature to 45-50 ℃;
e) Spraying primer, namely spraying paint on a workpiece, wherein the thickness of the paint is 15-30 mu m; then detecting, and repairing the missing or in-place sprayed areas;
f) Finely spraying finish paint, namely spraying the finish paint on the workpiece sprayed with the primer in the step E), wherein the spraying thickness is 30-80 mu m, detecting the surface of the workpiece after the spraying is finished, and repairing the block which is not sprayed in place or is not sprayed in place;
g) Solidifying, namely solidifying the workpiece sprayed with the finishing paint in the step F) for 40-80 minutes at the temperature of 180-200 ℃;
h) Forced cooling adopts a fan to accelerate air flow, thereby improving cooling speed.
The invention has the following characteristics:
1. set up recess operation platform in the middle of the balancing weight, make the counter weight of the mounting platform at operation platform both ends weight, played fine balancing action to the balancing weight, fill in the balancing weight simultaneously and separate into three, effectually reduced the motion inertia of filler to the balancing weight, both ends weight is equal, improves the balanced stability of balancing weight, holds the setting in intracavity little appearance chamber simultaneously, effectually prevents that the filler from holding the not hard up and the removal of intracavity, further improved the security of balancing weight.
2. The setting of cardboard in the little appearance chamber is convenient for improve the joint strength between filler and appearance chamber and the baffle, and further prevented the filler and held the intracavity not hard up and remove, the effectual focus stationarity that improves the balancing weight.
3. The setting of guardrail on the balancing weight is convenient for improve the security when installing or maintaining the hoist balancing weight, for providing an operating space and platform when installation and maintenance, can place the work piece on operating platform simultaneously, the operation of being convenient for, the improvement of the work efficiency of being convenient for prevents the emergence of incident, and the fine work piece of operating platform or mounting platform that has stopped of extension end of bounding wall drops in addition, has reduced the emergence of incident.
4. The balancing weight is sprayed through the working procedures of polishing, cleaning, degreasing, dedusting, cleaning, static removing, drying, heating, priming paint spraying, fine finishing paint spraying, solidifying, forced cooling and the like, so that the spraying effect is outstanding, the processing efficiency is improved, the spraying efficiency of the balancing weight is obviously improved by adopting the modes of repeated cleaning, repeated static removing and repeated cooling, the occurrence of bulges or cracks can be reduced, and the spraying quality is improved.
5. The balancing weight is suitable for the balancing weight of the small crane, is convenient to operate, and has stable gravity center and wide application range.
The detailed structure of the present invention is further described below with reference to the accompanying drawings and detailed description.
Drawings
FIG. 1-is a schematic diagram of the structure of the present invention;
FIG. 2-is a schematic diagram showing the distribution of the middle cavity of the internal structure of FIG. 1;
FIG. 3-is a schematic view showing the distribution of the small cavities of the internal structure of FIG. 1;
FIG. 4-is a top view of the structure of FIG. 1;
1-guardrail, 2-supporting tube, 3-apron, 4-dash panel, 5-back panel, 6-gusset, 7-riser, 8-otic placode, 9-back vision corridor lamp support, 10-supporting seat, 11-bottom plate, 12-first cavity in, 13-second cavity in, 14-third cavity in, 15-support column, 16-left panel, 17-baffle, 18-little chamber, 19-right panel, 20-through-hole, 21-shrouding.
Detailed Description
Example 1
As shown in fig. 1-4: a weight, comprising: the filling material is a mixture of mixed soil and lead, and the lead is lead blocks, wall bars or lead powder, so that the lead and the mixed soil are uniformly mixed, and meanwhile, the weight distribution of the filling material filled in the frame is uniform; the frame body is rectangular, is made of steel or metal alloy materials, and is provided with a bottom plate 11, a cover plate 3, four coamings, two sealing plates 21 and two vertical plates 7; the upper end of the frame body is provided with a concave operation platform, the bottom plate 11 and the coaming enclose a containing cavity, the vertical plate 7 is oppositely arranged at two sides of the inside of the containing cavity, the containing cavity is divided into three independent middle cavities, the middle cavity is internally provided with a baffle 17 and is divided into a plurality of small containing cavities 18, the small containing cavities 18 are relatively distributed at two sides of the central line of the width direction of the balancing weight, the upper end face of the baffle 17 is lower than the cover plate 3 or the sealing plate 21, the upper ends of the small containing cavities 18 in the middle cavity are communicated, the solidified filler is firmer and is not easy to loosen and displace, and the connection between the filler and the cavity is tighter.
The bounding wall includes preceding bounding wall 4, back bounding wall 5, left bounding wall 16 and right bounding wall 19, and four bounding walls welded fastening each other, and the lower terminal surface and the bottom plate 11 welded fastening of bounding wall are equipped with the notch around, and the notch is equipped with apron 3 relatively, and apron 3 both sides and riser 7's side fixed welding form sunken operation platform, and sunken operation platform both sides are mounting platform, and mounting platform is located to shrouding 21 on, and mounting platform forms balanced lever with sunken operation platform, makes the balancing weight balanced more stable.
The front coaming 4, the left side plate and the right side plate extend upwards to form a cover plate 3 and a sealing plate 21, a rib plate 6 is arranged between the extending end and the cover plate 3 and between the extending end and the sealing plate 21, and the rib plate 6 is convenient for the connection strength between the cover plate 3 and the sealing plate 21 and between the coaming; when maintenance tools or installation articles are placed on the operation platform, the setting of the extension end can well prevent falling of the articles, so that safety accidents are prevented, and convenience is improved conveniently.
The vertical plate 7 is fixedly welded with the inner side surfaces of the front coaming 5 and the rear coaming 5, the lower end surface of the vertical plate 7 is fixedly welded with the bottom plate 11, and the upper end surface of the vertical plate 7 is leveled with the mounting platform, so that the position of the mounting platform is higher than that of the operating platform, and meanwhile, the filling body is convenient for filling the frame body.
The middle cavity comprises a first middle cavity 12, a second middle cavity 13 and a third middle cavity 14, the first middle cavity 12 and the third middle cavity 14 are positioned at two sides of the second middle cavity 13, a supporting column 15 is relatively arranged in the second middle cavity 13, and a partition plate 17 is fixedly connected with the supporting column 15, the partition plate 17, the vertical plate 7 or the coaming.
The first middle cavity 12 and the small containing cavity 18 in the third middle cavity 14 are arranged opposite to each other, and are distributed on two sides of the central axis in the width direction of the balancing weight; the small cavities 18 in the second middle cavity 13 are also relatively distributed on two sides of the central axis, so that the weight on two sides of the central axis is balanced, and the center is balanced and stable.
The support column 15 includes supporting seat 10 and is located the stay tube 2 of supporting seat 10 top, the fixed welding of supporting tube 2 side and baffle 17 side or terminal surface, supporting seat 10 and bottom plate 11 fixed welding, the lower terminal surface of baffle 17 erects on supporting seat 10 and fixed welding, baffle 17 lower extreme is built on stilts, make little appearance chamber 18 lower extreme intercommunication, make the filler become a monoblock in the well cavity, be convenient for reduce the removal of filler, simultaneously also can reduce the removal inertia of filler to the balancing weight, be equipped with the cardboard in the capsule, the setting of cardboard is convenient for improve the joint strength between filler and the little appearance chamber 18, further prevent that the filler from producing the removal in the framework.
The support column 15 is provided with a through hole 20, an internal thread is arranged in the through hole 20, the cover plate 3 is provided with a mounting hole matched with the outer diameter of the support column 15, the support column 15 penetrates through the cover plate 3, the upper end surface of the support column 15 is leveled with the cover plate 3, the support column 15 is welded and fixed with the cover plate 3, the connection strength between the cover plate 3 and the balancing weight is convenient to strengthen, and the movement of fillers in the frame body is convenient to reduce; the support column 15 is in threaded connection with the lifting lug through internal threads, and when the balancing weight is installed or moved, the lifting lug plays a role in bearing the crane, so that the operation is convenient.
Embodiment 2 differs from embodiment 1 described above in that: the thickness of the partition plate 17 is 3mm, the lower end face of the partition plate 17 is fixedly welded with the bottom plate 11, the lower ends of the small containing cavities 18 are mutually separated, and the upper ends of the small containing cavities are mutually connected into a whole, so that the stability of the filler in the frame body is facilitated, and the movement of the filler is prevented.
The guardrail 1 is arranged between the installation platform and the operation platform, and is convenient for providing safety protection for operators when the operation platform or the installation platform is installed or maintained; the mounting platform is provided with an ear plate 8, and the ear plate 8 is used for fixing ropes or other objects; a back vision corridor lamp stand 9 is provided on one side of the ear plate 8 for mounting a back vision corridor lamp.
The balancing weight can also adopt other shapes to improve the balance, the upper end face of the operating platform is leveled with the upper end face of the mounting platform, the lower end of the mounting platform sags, and the lower end face of the mounting platform is lower than the lower end face of the operating platform, so that the whole balancing weight forms a balance lever.
The spraying method of the balancing weight comprises the following processing steps:
a) Polishing and supplementing soil, checking the flatness of the surface of a workpiece, and polishing; filling the concave and gap with gray soil, and polishing again with 800# or 1000# abrasive paper after filling to smooth the surface of the workpiece, so that paint is convenient to attach to the workpiece;
b) The degreasing and dedusting are carried out by adopting 5-10% phosphorus-free degreasing solution to spray or dip the dedusted workpiece, so that the surface grease is removed, the influence of the grease on the adhesive force of paint and the workpiece is reduced, then tap water is adopted to clean the surface of the workpiece, after the cleaning, pure water is used for cleaning for the first time, the grease and phosphorus-free degreasing residual liquid on the surface of the workpiece are removed, then organosilane diluent is adopted to treat rust powder on the surface of the workpiece, the subsequent paint spraying of the workpiece is facilitated, and the conditions such as bulge or cracking after the paint is dried are avoided;
c) Cleaning and removing static electricity, namely cleaning the balancing weight cleaned by the organosilane in the step B) by adopting second pure water to remove rust powder and silane residual liquid on the surface of the balancing weight, cleaning and removing static electricity on the balancing weight by adopting third pure water to thoroughly remove the residual rust powder and silane residual liquid, removing static electricity on a workpiece in a spraying or immersion cleaning mode, wherein the workpiece can be soaked and cleaned by adopting pure water for 3-5 minutes, then spraying the workpiece for 2-4 minutes, checking and cleaning conditions, manually spraying and removing rust powder or silane residual liquid in a gap of the workpiece according to requirements, draining the workpiece to remove most of accumulated water on the workpiece, draining most of accumulated water, facilitating the improvement of the subsequent drying efficiency on the workpiece, and simultaneously adopting multiple static removal to facilitate the improvement of the static electricity removing effect on the workpiece, reducing the influence on spraying and facilitating the improvement of adhesive force between paint and the workpiece;
d) Drying and heating, namely drying the workpiece subjected to cleaning and static removal by adopting hot air at 100-300 ℃, particularly drying a joint gap, adjusting the air drying temperature according to requirements due to different thicknesses of materials of the workpiece, simultaneously being beneficial to the preheating effect of the workpiece, facilitating uniform heating of the workpiece, forcibly cooling the dried workpiece by adopting a powerful fan, reducing the temperature to the room temperature of 45-50 ℃, reducing the influence of thermal expansion and cold contraction on spraying, and preventing cracks or raised points from occurring after paint drying;
e) Spraying primer, namely spraying paint on a workpiece, wherein the thickness of the paint is 15-30 mu m; then, detecting whether a missing spray or a block which is not sprayed in place exists, and manually repairing the missing spray part;
f) Finely spraying finish paint, namely spraying the finish paint on the balancing weight sprayed with the primer in the step E) by adopting a paint spraying machine with the pressure of 0.3-0.6Mpa, wherein the spraying thickness is 30-80 mu m, selecting paint with different colors according to the spraying requirement, detecting the surface of a workpiece after the spraying is finished, checking whether a missing spraying position exists or a gap position is not sprayed in place, and carrying out repair spraying on the missing spraying position;
g) Curing, namely curing the workpiece sprayed with the finish paint at 180-200 ℃ for 50 minutes, wherein the temperature can be raised by adopting infrared rays or resistors and heating by combining fuel gas, the temperature is raised quickly and uniformly, the paint can be cured quickly, and meanwhile, the pollution of dust in the air to the paint surface is reduced;
h) Forced cooling, namely, adopting a fan with the power of 7.5-15KW to accelerate air flow, improving the cooling speed, forcibly cooling the workpiece to room temperature, accelerating the cooling effect, improving the processing efficiency and being convenient for batch production.
In addition, the dust removing device can be added in the heating fan or the forced cooling fan after the primer or the finish paint is sprayed, so that the pollution of dust to the surface of a workpiece after spraying is reduced, and the spraying effect and the quality are improved.
The balancing weight is applied to the counterweight of a small crane below 50 tons, is convenient to install and operate, has high safety and outstanding balance stability, and has a wider application range.
The preferred embodiments of the present invention have been described in detail above, but it is apparent that the present invention is not limited to the above-described embodiments. Within the scope of the technical idea of the invention, various equivalent modifications can be made to the technical solution of the invention, which all belong to the protection scope of the invention. In addition, the technical features described in the above-described specific embodiments may be combined separately and independently as long as they are within the technical concept of the present invention.
Claims (8)
1. A weight, comprising: the filling material fills the containing cavity of the frame body, and the filling material is a mixture of suspected soil and lead; the frame body is rectangular and provided with a bottom plate, a cover plate, a coaming, a sealing plate and a vertical plate; the method is characterized in that: the lower end of the baffle is lower than the cover plate or the sealing plate, so that the upper ends of the small cavities are communicated, the middle cavity comprises a first middle cavity, a second middle cavity and a third middle cavity, the first middle cavity and the third middle cavity are positioned at two sides of the second cavity, supporting columns are oppositely arranged in the second middle cavity, the baffle is fixedly connected with the supporting columns, the supporting columns comprise supporting seats and supporting tubes positioned above the supporting seats, the side surfaces of the supporting tubes are fixedly welded with the side surfaces or the end surfaces of the baffle, the supporting seats are fixedly welded with the bottom plate, the lower end surfaces of the baffle are arranged on the supporting seats and fixedly welded, the lower ends of the baffle are overhead, so that the lower ends of the small cavities are communicated, and clamping plates are arranged in the small containers.
2. A counterweight as recited in claim 1, wherein: the coaming includes preceding coaming, back coaming, left coaming and right coaming, and four coamings welded fastening each other, and the lower terminal surface and the bottom plate welded fastening of coaming are equipped with the notch relatively around, and the notch is equipped with the apron, and the apron both sides form sunken operation platform with the fixed welding of the side of riser, and sunken operation platform both sides are mounting platform, and the shrouding is located on the mounting platform.
3. A counterweight as recited in claim 2, wherein: the front coaming, the left side plate and the right side plate extend upwards to form a cover plate and a sealing plate, and a rib plate is arranged between the extending end and the cover plate and between the extending end and the sealing plate.
4. A counterweight as recited in claim 2, wherein: the vertical plate is fixedly welded with the inner side surfaces of the front coaming and the rear coaming, the lower end surface of the vertical plate is fixedly welded with the bottom plate, and the upper end surface of the vertical plate is leveled with the mounting platform.
5. A counterweight as recited in claim 1, wherein: the support column is equipped with the through-hole, is equipped with the internal thread in the through-hole, is equipped with the mounting hole that matches with the support column external diameter on the apron, and the support column passes the apron, and the support column up end is leveled with the apron, and the support column passes through internal thread and lug threaded connection.
6. A counterweight as recited in claim 1, wherein: the thickness of the partition plate is 0.1-10mm, and the lower end surface of the partition plate is fixedly welded with the bottom plate.
7. A balancing weight according to any one of claims 1-6, wherein: the mounting platform and be equipped with the guardrail between with the operation platform, be equipped with the otic placode on the mounting platform, back vision corridor lamp support is established to one side of otic placode.
8. A method of spraying a balancing weight according to any one of claims 1 to 7, comprising the steps of:
a) Polishing and supplementing soil, checking the flatness of the surface of a workpiece, polishing, filling the concave and gap with gray soil, and polishing again with sand paper after filling;
b) Removing grease and dust, namely treating the dust-removed workpiece by adopting a phosphorus-free degreasing solution, removing grease on the surface of the workpiece, cleaning the surface of the workpiece by adopting tap water, removing residual grease and the phosphorus-free degreasing solution on the surface of the workpiece by adopting pure water, and removing rust powder on the surface of the workpiece by adopting organosilane;
c) Cleaning and removing static electricity, namely cleaning the surface of the workpiece cleaned by pure water in the step B) at least twice, removing static electricity, residual rust powder and organosilane residual liquid on the workpiece in a spraying or immersion cleaning mode, then manually supplementing the rust powder and the residual liquid at the gap of the cleaned workpiece, and draining water after cleaning;
d) Drying and heating, namely drying the drained workpiece by adopting hot air at 100-300 ℃, particularly drying the joint gaps, and forcibly cooling the dried workpiece by adopting a powerful fan to reduce the temperature to 45-50 ℃;
e) Spraying primer, namely spraying paint on a workpiece, wherein the thickness of the paint is 15-30 mu m; then detecting, and repairing the missing or in-place sprayed areas;
f) Finely spraying finish paint, namely spraying the finish paint on the workpiece sprayed with the primer in the step E), wherein the spraying thickness is 30-80 mu m, detecting the surface of the workpiece after the spraying is finished, and repairing the block which is not sprayed in place or is not sprayed in place;
g) Solidifying, namely solidifying the workpiece sprayed with the finishing paint in the step F) for 40-80 minutes at the temperature of 180-200 ℃;
h) Forced cooling adopts a fan to accelerate air flow, thereby improving cooling speed.
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