CN109441952A - The processing method of crusher axle sleeve - Google Patents
The processing method of crusher axle sleeve Download PDFInfo
- Publication number
- CN109441952A CN109441952A CN201811592842.5A CN201811592842A CN109441952A CN 109441952 A CN109441952 A CN 109441952A CN 201811592842 A CN201811592842 A CN 201811592842A CN 109441952 A CN109441952 A CN 109441952A
- Authority
- CN
- China
- Prior art keywords
- crusher
- processing method
- degrees celsius
- minutes
- nylon sleeve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/20—Sliding surface consisting mainly of plastics
- F16C33/208—Methods of manufacture, e.g. shaping, applying coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/02—Thermal after-treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/60—Polyamides [PA]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
- F16C2220/06—Shaping by casting in situ casting or moulding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/60—Shaping by removing material, e.g. machining
- F16C2220/62—Shaping by removing material, e.g. machining by turning, boring, drilling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Polyamides (AREA)
Abstract
The present invention provides a kind of crusher axle sleeve processing methods.The nylon sleeve that processing method through the invention is process, has simple production process, and molding is easy, suitable for processing large-scale axle sleeve, the features such as mechanical strength and machining property are good, long service life, while there is light weight, be convenient to process and mount, overhaul and the technical effects such as facilitate.
Description
Technical field
This application involves a kind of processing method of axle sleeve more particularly to a kind of processing methods of crusher axle sleeve.
Background technique
Axle sleeve is the tubular machine components covered in shaft, is the important component of body driving and transmission.To whole equipment
Operation play the role of adjustment, need certain hardness and sufficient lubrication.Since crusher is chronically at high-intensitive operating
Process, therefore, in the case where ensuring normally to lubricate and use, the quality of axle sleeve quality directly affects the use longevity of crusher
Life.Nylon products obtain light due to having the excellent properties such as high intensity, high barrier, anti-flammability, heat resistance in mechanical equipment
Put application.And nylon sleeve also more replaces traditional copper axle sleeve, to reduce cost.
The processing method of nylon sleeve is by being machined to nylon rod, since nylon rod is easily broken off or is collapsed
It is disconnected, so that processing efficiency is low, and due to the limitation of nylon rod size, it is not easy to process large-scale axle sleeve, be especially adapted for use in
The axle sleeve of Large Crusher.
Summary of the invention
At least one of in order to solve the above-mentioned technical problem, the present invention provides a kind of crusher axle sleeve processing methods.
The nylon sleeve that processing method through the invention is process has simple production process, and molding is easy, and it is large-scale to be suitable for processing
The features such as axle sleeve, mechanical strength and machining property are good, long service life, at the same have light weight, be convenient to process and mount,
Maintenance such as facilitates at the technical effects.
To achieve the above object, the present invention adopts the following technical scheme: a kind of processing method of crusher nylon sleeve, packet
Include following steps:
Step 1: caprolactam is heated to 85-90 degrees Celsius, forms caprolactam melt；
Step 2: catalyst is added in caprolactam melt and helps agent and is gradually heated to 145-150 degrees Celsius；
Step 3: carrying out vacuum dehydration under 145-150 degrees Celsius, so that water content is less than 200ppm, forms acyl in oneself
Amine active body；
Step 4: catalyst grinding tool is preheated 35-40 minutes under 175-180 degrees Celsius；
Step 5: caprolactam active body is cast in catalyst grinding tool and carries out polymerization forming；
Step 6: it is demoulded after carrying out polymerization heat preservation under 175-180 degrees Celsius 35 minutes；
Step 7: after blank demoulding, 20 minutes are kept the temperature；
Step 8: after being heat-treated to blank, being machined, and finished product is formed.
Preferably, the pouring type in the step 5 is cast using dynamic centrifugal, and centrifuge drives the revolving speed of grinding tool
It is 360 revs/min, and continues rotation 25-30 minutes after being cast.
Preferably, the heat treatment step in the step 8 further comprises: oil bath processing is carried out to blank, by oil temperature
It is maintained at 175-180 degrees Celsius, blank is then allowed slowly gradually to cool down, heat treatment time is every the oil bath of 1mm thickness 15 minutes.
Preferably, the heat treatment step in the step 8 further comprises: by the blank after oil bath at 95 degrees Celsius
Water in carry out water bath processing, then allow blank slowly gradually to cool down, heat treatment time be every the water-bath of 1mm thickness 15 minutes.
Preferably, the machining in the step 8 includes machining and Vehicle Processing, when machining, lathe revolving speed
At 45 revs/min hereinafter, sending knife amount less than 0.4 millimeter, the depth of cut is less than 5 millimeters, and when finishing processing, point of a knife has R=2.5
The fillet of millimeter, lathe revolving speed is less than 15 revs/min.
Preferably, the catalyst is sodium hydroxide.
It is preferably, described that help agent be different selected from toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate, six methylene benzene two
Cyanate or polymeric isocyanate glue.
Preferably, the caprolactam, catalyst and the mass ratio for helping agent are as follows: 1000:(1.5-2): (1.5-2).
Detailed description of the invention
Attached drawing shows exemplary embodiments of the present invention, and bright principle for explaining the present invention together,
Which includes these attached drawings to provide a further understanding of the present invention, and attached drawing is included in the description and constitutes this
Part of specification.
Fig. 1 is processing method flow chart of the invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.It is understood that this place
The specific embodiment of description is only used for explaining related content, rather than limitation of the invention.It also should be noted that being
Convenient for description, only the parts related to the present invention are shown in attached drawing.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can
To be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
A kind of processing method of crusher nylon sleeve includes the following steps: caprolactam being heated to 85-90 Celsius
Degree forms caprolactam melt；Catalyst is added in caprolactam melt and helps agent and to be gradually heated to 145-150 Celsius
Degree；Vacuum dehydration is carried out under 145-150 degrees Celsius, so that water content is less than 200ppm, forms caprolactam active body；It will urge
Agent grinding tool preheats 35-40 minutes under 175-180 degrees Celsius；Caprolactam active body is cast in catalyst grinding tool and is carried out
Polymerization forming；It is demoulded after carrying out polymerization heat preservation under 175-180 degrees Celsius 35 minutes；After blank demoulding, 20 minutes are kept the temperature；
It after being heat-treated to blank, is machined, forms finished product.
The raw material of production monomer cast nylon have following several:
1. caprolactam monomer (NH (CHZ) SCO) is the primary raw material for producing monomer cast nylon, product appearance white plates knot
Crystalline substance, molecular weight 113.16, specific gravity 1.0-1.14,67-69 degrees Celsius of fusing point, boiling point is 262.5-266.9 degrees Celsius.Phenol amine in oneself
It in soluble easily in water, alcohol, benzene and ether equal solvent, easily makes moist in air, when storage should be noted that drying.
2. catalyst is sodium hydroxide (NaOH), appearance white graininess, molecular weight is such as purity 96%, and specific gravity is
2.13,318.4 degrees Celsius of fusing point, 1390 degrees Celsius of boiling point, soluble easily in water, hygroscopicity is strong, should be enclosed within moisture-proof in container.
3. co-catalyst is isocyanic acid lipid.There are commonly toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate, six Asias
Toluene di-isocyanate(TDI) or polymeric isocyanate glue.Wherein toluene diisocyanate is the most commonly used.
It polymerize principle are as follows: caprolactam monomer disconnects amide chain, with other molecule amides under alkali catalyst effect
Chain is connected directly, and generates condensate-nylon of amide.And the effect of catalyst is generated in active oneself with caprolactam
Amide anion.Addition helps agent, for example, acetyl group in oneself the effect of phenol amine be the activated centre to form chain growth, make phenol amine point
At a temperature of not high quick polymerization occurs for son, if using agent toluene diisocyanate is helped, can make polymer have compared with
Big molecular weight and the special construction similar to straight chain, thus substantially increase the impact strength of product.But with regard to mechanism of polymerization
For, when polymerization, each molecule helped agent, became the center of a chain growth, chain growth center is more, then polymeric
Molecular weight is smaller, so helping agent dosage excessive.
In addition, there is the presence of minor amount of water in polymerization reaction, the formation of amide anion and quickly anti-also can be seriously destroyed
Required activated centre is answered, therefore, drying must be removed water before polymerization, the intracorporal water content of strict control polymerization activity exists
200ppm (parts per million) is below.
The both mold ends axis of bushing is supported with bearing, is driven by motor V belt, and mold revolution is 360 revs/min.It will
The caprolactam active body prepared, since centrifugal force acts on, makes material according to mould type shape in rotation by mold into people's die cavity
Polymerization forming, blank.
Using dynamic moulding by casting, being poured front mold must keep rotating, and temperature should be maintained at a 175-180 degrees Celsius of left side
The right side prevents low temperature effect quality.But in casting, it is necessary to power off electric dry oven electric furnace, cause fire to prevent the excessive material of mold mouth
Calamity.After casting, after centrifuge continues rotation 25-30 minutes, upper cover is sling in parking, then hangs out mold, must after Large lining demoulding
It must be made along axially vertical placement, forbid to be horizontally arranged, it is oval to prevent generating.
The advantages of centrifugal casting is good product quality, and stomata is less, and concentricity is also high, can be cut less.And polymerization forming
Fastly, smaller than static casting shrinking percentage, equipment is simple, and demoulding is easy.
The heat treatment of monomer cast nylon product.In order to improve the quality of monomer cast nylon part, keep its geometric dimension more stable, it is necessary to
Through Overheating Treatment, to improve the intensity of nylon, its coefficient of friction is reduced, improves greasy property.It is handled using oil bath, oil temperature is kept
At 175-180 degrees Celsius, every 1 millimeters thick of heat treatment time is heat-treated 15 minutes.Bushing fills people or taking-up into fuel tank, available
A-frame is with manual zipper crane for hoisting.At the water-bath that bushing after oil bath is also carried out to 95 degrees centigrades again sometimes
Reason, then allows it slowly gradually to cool down.
Monomer cast nylon have good machining property, surface hardness HB=20-26, can carry out turning, saw, cut,
The techniques processing such as milling, slotting, brill, drawing.But due to its poor thermal conductivity, when processing in addition to it must be fully cooled liquid, blade must cutting edge of a knife or a sword
Benefit.
It when turning clamping, answers four paws firmly uniform, must not overexert and split and deform with anti-sticking.Special card is preferred
Hoop, movable support frame, idler pulley etc..
Bite should not be too large when machining, and lathe revolving speed should not be too high, generally should send knife at 45 revs/min or less
Amount is no more than 0.4 millimeter, and lathe tool is preferably high-speed steel.The depth of cut is less than 5 millimeters.
Cutter should keep sharp when smart car, point of a knife should grind R=2.5 millimeters of fillet, and lathe revolution is not higher than 15 revs/min
Clock, send that knife is slow, penetration of a cutting tool wants small, and emulsifier should be maintained in cutting or oil is cooling, can obtain higher finish.
The axle sleeve that the present invention processes is carried out on more logo pseudotype gyratory crushers, brachycephaly gyratory crusher durable
Property simulation test, wherein standard cone crusher add up service life up to 23,352 hours or more, 50% muck of operating rate
Amount is up to 5,188,800 tons.In short head cone crusher service life up to 3312 hours, system hourly average treatment effeciency is
341 ton/hours, the nylon sleeve compared with conventional casting methods processing improves 13%, and grinds and watt seize accident and be also greatly reduced, and extends
Maintenance interval period of crusher.
In the description of this specification, reference term " one embodiment/mode ", " some embodiment/modes ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment/mode or example description,
Structure, material or feature are contained at least one embodiment/mode or example of the application.In the present specification, to upper
The schematic representation for stating term is necessarily directed to identical embodiment/mode or example.Moreover, the specific features of description,
Structure, material or feature can be combined in any suitable manner in any one or more embodiment/modes or example.In addition,
Without conflicting with each other, those skilled in the art can by different embodiment/modes described in this specification or
Example and different embodiment/modes or exemplary feature are combined.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present application, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
It will be understood by those of skill in the art that above embodiment is used for the purpose of clearly demonstrating the application, and simultaneously
Non- be defined to scope of the present application.For those skilled in the art, may be used also on the basis of disclosed above
To make other variations or modification, and these variations or modification are still in scope of the present application.
Claims (8)
1. a kind of processing method of crusher nylon sleeve, includes the following steps:
Step 1: caprolactam is heated to 85-90 degrees Celsius, forms caprolactam melt；
Step 2: catalyst is added in caprolactam melt and helps agent and is gradually heated to 145-150 degrees Celsius；
Step 3: carrying out vacuum dehydration under 145-150 degrees Celsius, so that water content is less than 200ppm, it is living to form caprolactam
Property body；
Step 4: catalyst grinding tool is preheated 35-40 minutes under 175-180 degrees Celsius；
Step 5: caprolactam active body is cast in catalyst grinding tool and carries out polymerization forming；
Step 6: it is demoulded after carrying out polymerization heat preservation under 175-180 degrees Celsius 35 minutes；
Step 7: after blank demoulding, 20 minutes are kept the temperature；
Step 8: after being heat-treated to blank, being machined, and finished product is formed.
2. the processing method of crusher nylon sleeve as described in claim 1, it is characterised in that: the casting in the step 5
Mode is cast using dynamic centrifugal, and centrifuge speed is 360 revs/min, and continues rotation 25-30 minutes after being cast.
3. the processing method of crusher nylon sleeve as claimed in claim 1 or 2, it is characterised in that: in the step 8
Heat treatment step further comprises: carrying out oil bath processing to blank, oil temperature is maintained at 175-180 degrees Celsius, then allows hair
Blank slowly gradually cools down, and heat treatment time is every the oil bath of 1mm thickness 15 minutes.
4. the processing method of crusher nylon sleeve as claimed any one in claims 1 to 3, it is characterised in that: the step
Heat treatment step in rapid eight further comprises: the blank after oil bath being carried out water bath processing in 95 degrees Celsius of water, so
After allow blank slowly gradually to cool down, heat treatment time be every the water-bath of 1mm thickness 15 minutes.
5. the processing method of crusher nylon sleeve according to any one of claims 1 to 4, it is characterised in that: the step
Machining in rapid eight includes machining and Vehicle Processing, and when machining, lathe revolving speed is at 45 revs/min hereinafter, sending knife
Amount is less than 0.4 millimeter, and the depth of cut is less than 5 millimeters, and when finishing processing, point of a knife has R=2.5 millimeters of fillet, lathe revolving speed
Less than 15 revs/min.
6. the processing method of the crusher nylon sleeve as described in any one of claims 1 to 5, it is characterised in that: described to urge
Agent is sodium hydroxide.
7. such as the processing method of crusher nylon sleeve described in any one of claims 1 to 6, it is characterised in that: described to help
Agent is selected from toluene di-isocyanate(TDI), '-diphenylmethane diisocyanate, six methylene phenylene diisocyanates or polymeric isocyanate glue.
8. the processing method of the crusher nylon sleeve as described in any one of claims 1 to 7, it is characterised in that: it is described oneself
Lactams, catalyst and the mass ratio for helping agent are as follows: 1000:(1.5-2): (1.5-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592842.5A CN109441952A (en) | 2018-12-25 | 2018-12-25 | The processing method of crusher axle sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592842.5A CN109441952A (en) | 2018-12-25 | 2018-12-25 | The processing method of crusher axle sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109441952A true CN109441952A (en) | 2019-03-08 |
Family
ID=65535493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592842.5A Pending CN109441952A (en) | 2018-12-25 | 2018-12-25 | The processing method of crusher axle sleeve |
Country Status (1)
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| CN (1) | CN109441952A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
| CN1718409A (en) * | 2004-07-29 | 2006-01-11 | 南京理工大学 | Preparation method of nylon composite gradient pipe |
| CN102153743A (en) * | 2011-01-18 | 2011-08-17 | 武汉工程大学 | Preparation method of self-lubricating and high-strength pouring nylon |
| CN102391503A (en) * | 2011-10-19 | 2012-03-28 | 淮阴工学院 | Preparation method for composite material of cast nylon/attapulgite clay |
| CN102391501A (en) * | 2011-08-08 | 2012-03-28 | 株洲时代新材料科技股份有限公司 | High-strength super-toughness casting nylon piling machine cushion and preparation method thereof |
| CN102773953A (en) * | 2012-07-20 | 2012-11-14 | 江苏亚电新材料有限公司 | Preparation method for high-strength MC (monomer casting) nylon wheel |
| CN105801840A (en) * | 2016-04-08 | 2016-07-27 | 河南科技大学 | Nanoparticle reinforced self-lubricated cast nylon composite shaft sleeve and manufacturing method thereof |
-
2018
- 2018-12-25 CN CN201811592842.5A patent/CN109441952A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1262394A (en) * | 1999-01-28 | 2000-08-09 | 淮安市楚州尼龙制品厂 | Blade wheel of slurry pump and its manufacture method |
| CN1718409A (en) * | 2004-07-29 | 2006-01-11 | 南京理工大学 | Preparation method of nylon composite gradient pipe |
| CN102153743A (en) * | 2011-01-18 | 2011-08-17 | 武汉工程大学 | Preparation method of self-lubricating and high-strength pouring nylon |
| CN102391501A (en) * | 2011-08-08 | 2012-03-28 | 株洲时代新材料科技股份有限公司 | High-strength super-toughness casting nylon piling machine cushion and preparation method thereof |
| CN102391503A (en) * | 2011-10-19 | 2012-03-28 | 淮阴工学院 | Preparation method for composite material of cast nylon/attapulgite clay |
| CN102773953A (en) * | 2012-07-20 | 2012-11-14 | 江苏亚电新材料有限公司 | Preparation method for high-strength MC (monomer casting) nylon wheel |
| CN105801840A (en) * | 2016-04-08 | 2016-07-27 | 河南科技大学 | Nanoparticle reinforced self-lubricated cast nylon composite shaft sleeve and manufacturing method thereof |
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