CN111561517A - Mining machinery supporting assembly and manufacturing process thereof - Google Patents
Mining machinery supporting assembly and manufacturing process thereof Download PDFInfo
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- CN111561517A CN111561517A CN202010363399.5A CN202010363399A CN111561517A CN 111561517 A CN111561517 A CN 111561517A CN 202010363399 A CN202010363399 A CN 202010363399A CN 111561517 A CN111561517 A CN 111561517A
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- ball
- tile
- ball bearing
- steel base
- base body
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- 238000005065 mining Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 229910052802 copper Inorganic materials 0.000 claims abstract description 49
- 239000010949 copper Substances 0.000 claims abstract description 49
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005266 casting Methods 0.000 claims abstract description 38
- 229910000906 Bronze Inorganic materials 0.000 claims abstract description 11
- 239000010974 bronze Substances 0.000 claims abstract description 11
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 229910001149 41xx steel Inorganic materials 0.000 claims 1
- 239000003921 oil Substances 0.000 description 38
- 238000012423 maintenance Methods 0.000 description 11
- 229910001141 Ductile iron Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000005496 tempering Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Images
Classifications
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- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
- F16C23/043—Sliding-contact bearings self-adjusting with spherical surfaces, e.g. spherical plain bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
-
- 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
- F16C33/06—Sliding surface mainly made of metal
-
- 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
- F16C33/06—Sliding surface mainly made of metal
- F16C33/08—Attachment of brasses, bushes or linings to the bearing housing
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- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention relates to a mining machine support assembly, comprising: the ball bearing comprises a steel base body, the steel base body is in interference fit with the body, a dovetail groove is formed in the steel base body, lead bronze is centrifugally cast on one side of the dovetail groove, and then fine machining is carried out to realize precise and good fit contact between copper and a ball tile; one end of the ball tile is matched with the copper casting in shape, so that the ball tile and the copper casting are in seamless contact to form a friction pair, and the other end of the ball tile is in interference fit with the ball tile seat; the ball bearing seat is fixed on the main shaft through the expansion sleeve. The contact friction surface of the ball bearing is copper, so that the wear resistance of the ball bearing is ensured; because the ball bearing is in interference fit with the body, the ball bearing is in steel-steel fit, and the firm reliability of the interference fit of the ball bearing and the body is ensured.
Description
Technical Field
The invention relates to the technical field of mechanical assemblies, in particular to a mining machinery supporting assembly and a manufacturing process thereof.
Background
The ball bearing, the ball tile seat and the like support the body and the crushing wall part which do rotary swing motion, and because the multi-cylinder hydraulic cone crusher has high rotating speed, large eccentricity and unstable working condition and impact during operation, the ball tile cracks, cracks and loosens frequently; the ball bearing is easy to loosen; the lubricating oil is polluted quickly, and the oil is blackened after 24 hours of operation, so that other copper sleeves and rotating parts are abraded quickly, the service life is short, and the like. In the prior art, ball bearings are made of nodular cast iron, and ball tiles are made of lead bronze. If the nodular cast iron is not completely spheroidized and has poor quality, the abraded powder is easy to pollute lubricating oil and is easy to blacken, so that the abrasion of other copper sleeves is accelerated; the copper material of the ball tile is not high in strength, is easy to crack and loosen, and is easy to lose efficacy due to the fact that the copper is soft and the interference fit of the copper material and the ball tile seat is easy to lose efficacy, so that the ball tile is scrapped after being worn and the maintenance cost is high.
If the spherical tile is loosened or broken, abnormal abrasion and cracks of each copper sleeve in the body are inevitably caused, and abnormal abrasion of the body, the balance ring and the rack is also caused, so that the maintenance cost is high, the period is long, the production is influenced, and the loss is large.
The ball tile seat below the ball tile all adopts ball tile seat and main shaft interference fit on the existing market, and then attaches bolt and flat key connection, or attaches bolt and pin connection, and the maintenance dismouting is very difficult, because in case ball tile and ball tile seat pine take off, will produce wearing and tearing, interference fit inefficacy, so ball tile seat changes the difficulty.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a mining machinery supporting assembly and a manufacturing process thereof, and the mining machinery supporting assembly has the advantages of long service life, easiness in assembly and disassembly, easiness in maintenance, strong bearing capacity, impact resistance, reliability in lubrication, convenience in maintenance and the like.
The technical purpose of the invention is realized by the following technical scheme: a mining machine support assembly comprising:
the ball bearing comprises a steel base body, the steel base body is in interference fit with the body, an annular dovetail groove is formed in the steel base body, lead bronze is centrifugally cast on one side of the dovetail groove, and a copper casting is in contact with a ball tile in a fitting mode;
one end of the ball tile is matched with the copper casting in shape, so that the ball tile and the copper casting are in seamless contact to form a friction pair, and the other end of the ball tile is in interference fit with the ball tile seat;
the ball bush seat is fixed on the main shaft through an expansion sleeve; the ball tile seat is made of high-strength alloy steel 42CrMo, is subjected to quenching and tempering treatment, has high strength and hardness, and is not easy to deform and lose efficacy through interference.
In one embodiment, the steel base body is provided with an anti-rotation assembly, so that the ball bearing can be prevented from being separated from the base body and rotating; the anti-rotation component comprises a pin hole formed in the steel base body, and a cylindrical pin is inserted between the pin hole and the body to prevent the ball bearing and the body from rotating relative to each other to cause damage to the ball bearing and the body;
the steel base body is also provided with an anti-falling assembly, and when the body or the ball bearing needs to be maintained, the ball bearing is prevented from falling off in the process of being lifted upwards; the anti-falling assembly comprises a screw hole formed in a steel base body, and a bolt is arranged between the screw hole and the body;
the anti-rotation assembly and the anti-falling assembly are both arranged on the steel substrate and are not in contact with the copper casting.
In one embodiment, the bottom surface of the copper casting is arc-shaped, and the spherical tile is correspondingly provided with an arc surface.
In one embodiment, the ball tile and the ball tile seat are connected through a bolt and a pin in a reinforced mode, the pin is installed in the pin hole and used for preventing rotation, and the two parts are prevented from being scrapped in case of loosening the rotation friction between the ball tile and the ball tile seat; the bolt plays a role in strengthening connection and a role in hoisting safety, an annular oil groove and a radial oil groove are formed in the arc surface of the spherical tile, and an oil inlet hole is formed in the center of the spherical tile and communicated with the spindle oil hole.
The invention also includes a process for manufacturing the mining machinery supporting component, which comprises the following steps: the manufacturing method comprises the steps of manufacturing a steel base body by using No. 45 steel, processing a dovetail groove on the steel base body, casting lead bronze on the steel base body, heating the steel base body to 500 ℃ before the casting process is started, cooling to form a copper casting, and manufacturing the ball bearing with one end of the steel base body and the other end of the copper casting.
In one embodiment, the dovetail grooves are processed into a plurality of annular dovetail grooves according to the size of the ball bearing; the angle of the dovetail groove is 60 degrees, and 4 dovetail grooves are additionally arranged on the dovetail groove
A hole having a depth of 20 mm.
In one embodiment, the lead bronze is ZCuPb10Sn10, and after casting, the copper casting and the steel matrix are subjected to finish machining.
In one embodiment, the process for manufacturing the mining machine support assembly further comprises: and placing the ball bearing on the ball tile, and fixing the ball tile on the ball tile seat.
The ball bearing is in interference fit with the body, the ball bearing is frozen in an assembly method, and the fitting size is measured quickly after the ball bearing is taken out, so that the ball bearing is guaranteed to be installed easily.
The ball tile seat and the main shaft are in a standard Z5 expansion sleeve, each bolt reaches the torque specified by the national standard during assembly, the ball tile and the ball tile seat are in interference fit, the ball tile is subjected to freezing treatment during assembly, the fit size is rapidly measured after the ball tile is taken out, and the ball tile seat and the main shaft are easily assembled.
In one embodiment, the ball tile is made of high-strength alloy steel 42CrMo, and is subjected to thermal refining, so that the strength and hardness are increased, cracking is not easy to occur, and the wear resistance is increased.
In one embodiment, the ball pad seat is connected with the main shaft by a Z5 expansion sleeve. Firm in connection, easy dismounting, the maintenance is simple quick, with low costs.
In conclusion, the invention has the following beneficial effects:
firstly, the strength requirement, the connection reliability requirement and the wear resistance requirement of the supporting component are realized and met. The ball tile is made of steel instead of copper, so that the strength is greatly improved, and the ball tile is not easy to crack and loosen; the ball bearing is changed into a steel and copper dual-metal structure from nodular cast iron, so that the quality is more reliable, and the connection is firmer. Because the ball tile is thinner than a ball bearing, is provided with the annular groove and the radial groove, and has weaker strength, the ball tile is changed from copper to steel, and the requirement is met. The ball bearing is thick, the strength is not problematic, and the requirements of reliable connection and wear resistance are met, so that the purpose is achieved by changing the ball bearing into a steel and copper dual-metal structure, and the requirements are met;
secondly, the contact friction surface of the ball bearing is made of copper, so that the wear resistance of the ball bearing is ensured; the ball bearing is in interference fit with the body, so that the ball bearing is in steel-steel fit, and the firm reliability of the interference fit between the ball bearing and the body is ensured;
thirdly, the ball tile is made of high-strength alloy steel 42CrMo, and is subjected to quenching and tempering, so that high strength and wear resistance are guaranteed;
fourthly, the spherical tile and the spherical tile seat are connected through interference fit and bolts, the spherical tile seat and the main shaft are connected through a Z5 expansion sleeve (national standard expansion sleeve), and convenience in disassembly, assembly and maintenance is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a ball bearing configuration;
FIG. 3 is a schematic view of a spherical tile structure;
FIG. 4 is a cross-sectional view of FIG. 3A-A;
FIG. 5 is a manufacturing process diagram of the present invention.
In the figure: 1-body, 2-ball bearing, 21-steel body, 211-dovetail groove, 22-copper casting, 3-ball tile, 31-annular oil groove, 32-radial oil groove, 33-oil filling port, 34-oil outlet, 35-gear oil pump, 36-thin oil station, 37-cooling pipe, 4-ball tile seat, 5-expansion sleeve and 6-main shaft.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
Referring to fig. 1 and 2, a mining machine support assembly includes:
the ball bearing 2 comprises a steel base 21, the steel base 21 is in interference fit with the body 1, an annular dovetail groove 211 is formed in the steel base 21, lead bronze is centrifugally cast on one side of the dovetail groove 211, the bottom surface of a copper casting 22 is arc-shaped, a cambered surface is correspondingly arranged on the ball tile 3, and the copper casting 22 is in contact with the ball tile 3 in a fitting mode;
one end of the ball tile 3 is matched with the copper casting 22 in shape, so that the two are in seamless contact to form a friction pair, and the other end of the ball tile is in interference fit with the ball tile seat 4;
the ball tile seat 4 is fixed on the main shaft 6 through an expansion sleeve 5; the ball tile seat 4 is made of high-strength alloy steel 42CrMo, is subjected to quenching and tempering, has high strength and hardness, and is not easy to deform and lose efficacy through interference.
By adopting the scheme, the strength requirement, the connection reliability requirement and the wear resistance requirement of the supporting assembly are realized and met. The ball tile 3 is made of steel instead of copper, so that the strength is greatly increased, and the ball tile is not easy to crack and loosen; the ball bearing 2 is of a steel and copper dual-metal structure changed from nodular cast iron, so that the quality is more reliable, and the connection is firmer. Because the ball tile 3 is thinner than the ball bearing 2, and is provided with the annular groove and the radial groove, the strength is weaker, so the ball tile 3 is changed from copper to steel, and the requirement is met. The ball bearing 2 is thick, the strength is not problematic, and the requirements of reliable connection and wear resistance are met, so that the purpose is achieved by changing the structure into a steel and copper dual-metal structure, and the requirements are met.
The steel base body 21 is provided with an anti-rotation assembly, so that the ball bearing 2 can be prevented from being separated from the body 1 and rotating; the anti-rotation component comprises a pin hole formed in the steel base body 21, and a cylindrical pin is inserted between the pin hole and the body 1 to prevent the ball bearing 2 and the body 1 from rotating relatively to cause damage to the ball bearing and the body 1;
the steel base body 21 is also provided with an anti-falling component, so that when the body 1 or the ball bearing 2 needs to be maintained, the ball bearing 2 is prevented from falling off in the process of being lifted upwards; the anti-falling assembly comprises a screw hole formed in the steel base body 21, and a bolt is arranged between the screw hole and the body 1;
the anti-rotation component and the anti-falling component are both arranged on the steel matrix 21 and are not in contact with the copper casting.
An annular oil groove 31 and a radial oil groove 32 are arranged on the cambered surface of the spherical tile 3, and the annular oil groove 31 and the radial oil groove 32 are both sealed oil grooves; referring to fig. 3 and 4, the annular oil groove 31 includes a plurality of circles of arc-shaped oil grooves adapted to the arc shape of the spherical tile, the radius of the arc-shaped oil groove is gradually reduced from the outer edge of the spherical tile to the center of the spherical tile, the radial oil groove 32 includes a plurality of linear oil grooves penetrating through the arc surface of the spherical tile, the linear oil grooves are connected with the arc-shaped oil grooves, two ends of the three linear oil grooves are respectively connected with oil injection ports 33, the oil injection ports 33 and the oil outlet 34 cannot be directly communicated, otherwise, a certain oil pressure cannot be maintained and an oil film cannot be formed, the oil path is provided with a gear oil pump 35 and a thin oil station 36, the thin oil station 36 includes a cooler, a heater, an overflow valve, a flow meter, a temperature sensor and a pressure sensor, and the like, and through circulating lubrication, cooling and forced lubrication of the lubricating oil film are ensured. The cooler is cooled by air cooling or Freon, the oil temperature is controlled below 55 ℃, and the oil temperature is too low when the heater is used in winter, so that the oil temperature is heated to be above 28 ℃ before use, and the normal operation of the equipment is ensured. The ball bearing 3 and the ball bearing 2 are lubricated by oiling, and an oil inlet hole is formed in the center of the ball bearing 3 and communicated with an oil hole of the main shaft 6.
The steel base body 21 is provided with a screw hole and two pin holes, the two pin holes are arranged at 180 degrees and are respectively filled with a cylindrical pin, the corresponding position on the body 1 is also provided with a pin hole, and the cylindrical pin is positioned between the ball bearing 2 and the body 1, so that the ball bearing 2 is prevented from loosening and rotating relative to the ball bearing 2, and the ball bearing and the body are prevented from being damaged; the screw hole is screwed with a bolt, so that the ball bearing can be prevented from loosening and falling off to break other objects during maintenance and hoisting, and the steel body 21 is strengthened by matching with the pin hole to be fixed with the body 1; and a screw hole is formed in the middle of one side of the copper casting 22 and used for hoisting during assembly.
Referring to fig. 5, a process for manufacturing a mining machine support assembly includes: the method comprises the steps of manufacturing a steel base 21 by using No. 45 steel, processing an annular dovetail groove 211 on the steel base 21, casting lead bronze on the steel base 21 to realize good metallurgical fusion of the steel base and the steel base, heating the steel base 21 to 500 ℃ before the casting process, cooling the steel base 21 at normal temperature to form a copper casting 22, performing finish machining on the copper casting 22, and simultaneously respectively forming a pin hole and a screw hole in the steel base 21 and the copper casting 22 to manufacture the ball bearing 2 with one end serving as the steel base 21 and the other end serving as the copper casting 22.
2-3 annular dovetail grooves 211 are processed in the dovetail grooves 211 according to the size of the ball bearing 2; the angle of the dovetail groove 211 is 60 degrees, and the steel substrate 2 is reinforced through the dovetail groove 2111 strength and reliability of connection with the copper casting 22. Meanwhile, 4 dovetail grooves between the steel matrix 21 and the copper casting 22 can be additionally arranged
The depth of the hole is 20mm, and the circumferential connection strength between the steel and the copper is increased.
The copper casting 22 is made of lead bronze ZCuPb10Sn10 and has good self-lubricating performance. The manufacturing process of the mining machinery supporting component also comprises the following steps: placing the ball bearing 2 on the ball tile 3, and fixing the ball tile 3 on the ball tile seat 4; the ball bearing 2 is in interference fit with the body 1, the assembly method is that the ball bearing is frozen firstly, the ball bearing is frozen at the temperature of 80-90 ℃ below zero for 8 hours, and the ball bearing is taken out and then the fit size is measured quickly to ensure easy assembly; the ball tile seat 4 and the main shaft 6 adopt a standard Z5 expansion sleeve 5, each bolt reaches the torque specified by the national standard during assembly, the ball tile 3 and the ball tile seat 4 are in interference fit, the ball tile 3 is frozen for 8 hours at the temperature of 80-90 ℃ below zero during assembly, the fit size is rapidly measured after the ball tile is taken out, and the easy installation is ensured.
Taking out after reaching a certain time and cooling temperature, quickly measuring the matching size and ensuring easy loading; the ball bearing seat 4 and the main shaft 6 adopt a standard Z5 expansion sleeve 5, and each bolt reaches the torque specified by the national standard when being assembled.
The ball tile 3 is made of high-strength alloy steel 42CrMo, and is subjected to quenching and tempering treatment, so that the strength and the hardness are increased, the ball tile is not easy to crack, and the wear resistance is increased.
The ball pad seat 4 is connected with the main shaft 6 by adopting a Z5 expansion sleeve 5. Firm in connection, easy dismounting, the maintenance is simple quick, with low costs.
Example (b):
taking a PH-5 multi-cylinder cone machine which is used in the market for example, under the condition of normal use, the normal wear life of the ball bearing 2 and the ball tile 3 is about 2-3 years, if oil is changed according to a specified period, the oil quality is clean, the ball bearing 2 can be used for 3 years, after the improvement according to the above conditions, the ball bearing 2 never loosens after 4 years, and the ball tile 3 does not crack or loosen.
Before improvement, the ball bearing 2 is loosened about half a year, the ball tile 3 is broken, the direct maintenance loss caused by the ball bearing 1187 yuan, the ball tile 14227 yuan and the body 1 maintenance cost is 4000 yuan, and if the production is stopped for 2 days according to the production of 350 tons/hour, the operation loss is about 30 ten thousand.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A mining machine support assembly, comprising:
the ball bearing comprises a steel base body, the steel base body is in interference fit with the body, an annular dovetail groove is formed in the steel base body, lead bronze is centrifugally cast on one side of the dovetail groove, and then fine machining is carried out, so that precise and good fit contact between copper and a ball tile is realized;
one end of the ball tile is matched with the copper casting in shape, so that the ball tile and the copper casting are in seamless contact to form a friction pair, and the other end of the ball tile is in interference fit with the ball tile seat;
the ball bearing seat is fixed on the main shaft through the expansion sleeve.
2. The mining machine support assembly of claim 1, wherein the steel substrate is provided with an anti-rotation assembly capable of preventing the ball bearing from separating from the body and rotating; the anti-rotation component comprises a pin hole formed in the steel base body, and a cylindrical pin is inserted between the pin hole and the body to prevent the ball bearing and the body from rotating relative to each other to cause damage to the ball bearing and the body;
the steel base body is also provided with an anti-falling assembly, and when the body or the ball bearing needs to be maintained, the ball bearing is prevented from falling in the process of being lifted upwards; the anti-falling assembly comprises a screw hole formed in a steel base body, and a bolt is arranged between the screw hole and the body;
the anti-rotation assembly and the anti-falling assembly are both arranged on the steel substrate and are not in contact with the copper casting.
3. The mining machine support assembly of claim 1, wherein the bottom surface of the copper casting is curved, and the spherical tile is correspondingly provided with a curved surface.
4. The mining machine support assembly of claim 1, wherein the ball shoe and the ball shoe seat are in interference fit, and are connected by a bolt and a pin to prevent relative rotation; the bolt plays a role in strengthening connection, an annular oil groove and a radial oil groove are formed in the arc surface of the ball tile, and an oil inlet hole is formed in the center of the ball tile and communicated with the spindle oil hole.
5. A process for making a mining machine support assembly as defined in claim 1, comprising: the manufacturing method comprises the steps of manufacturing a steel base body by using No. 45 steel, processing a dovetail groove on the steel base body, casting lead bronze on the steel base body, heating the steel base body to 500 ℃ before the casting process is started, cooling to form a copper casting, and manufacturing the ball bearing with one end of the steel base body and the other end of the copper casting.
6. A process for making a mining machine support assembly according to claim 1, wherein the dovetail slots are sized to form a plurality of annular dovetail slots; the angle of the dovetail groove is 60 degrees, and 4 dovetail grooves are additionally arranged on the dovetail groove
A hole having a depth of 20 mm.
7. The mining machine support assembly of claim 1, wherein the lead bronze is zcubb 10Sn10, and after casting, the copper casting is precision machined.
8. A process for making a mining machine support assembly as defined in claim 1, wherein the process further comprises:
the ball bearing is in interference fit with the body, the ball bearing is frozen in an assembly method, and the fit size is measured after freezing to ensure easy assembly;
the ball tile seat and the main shaft are in a standard Z5 expansion sleeve, each bolt reaches the torque specified by the national standard during assembly, the ball tile and the ball tile seat are in interference fit, the ball tile is subjected to freezing treatment during assembly, the fit size is rapidly measured after the ball tile is taken out, and the ball tile seat and the main shaft are easily assembled.
9. The mining machine support assembly manufacturing process of claim 1, wherein the ball tile is made of high strength alloy steel 42 CrMo.
10. A process for making a mining machine support assembly as defined in claim 1, wherein the ball shoe seat is attached to the spindle by a Z5 expansion sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363399.5A CN111561517A (en) | 2020-04-30 | 2020-04-30 | Mining machinery supporting assembly and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010363399.5A CN111561517A (en) | 2020-04-30 | 2020-04-30 | Mining machinery supporting assembly and manufacturing process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111561517A true CN111561517A (en) | 2020-08-21 |
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ID=72070680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010363399.5A Pending CN111561517A (en) | 2020-04-30 | 2020-04-30 | Mining machinery supporting assembly and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111561517A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326626A1 (en) * | 1982-07-26 | 1984-01-26 | Litton Systems, Inc., North Columbia, S.C. | Conical crusher |
| CN201807386U (en) * | 2010-02-25 | 2011-04-27 | 上海世邦机器有限公司 | Device for compacting crushed wall of cone crusher |
| CN203161840U (en) * | 2013-03-22 | 2013-08-28 | 浙江永成机械有限公司 | Bowl sleeve on cone crusher |
| CN203778123U (en) * | 2014-04-18 | 2014-08-20 | 韶关市创力机械有限公司 | Novel crusher |
| CN203778117U (en) * | 2014-04-18 | 2014-08-20 | 韶关市创力机械有限公司 | Cone crusher with expansion connection sleeve |
| CN204159369U (en) * | 2014-07-30 | 2015-02-18 | 成都大宏立机器股份有限公司 | Unit for inertial conic crusher |
| CN105579723A (en) * | 2013-09-27 | 2016-05-11 | 千住金属工业株式会社 | Sliding member and method for producing sliding member |
| CN205815784U (en) * | 2016-07-20 | 2016-12-21 | 上海杰弗朗机械设备有限公司 | Gyratory crusher body anti-self-rotating mechanism |
| CN206246531U (en) * | 2016-11-26 | 2017-06-13 | 江阴兴澄特种钢铁有限公司 | A kind of underdrive vertical mill sliding bearing |
| CN207823102U (en) * | 2017-12-20 | 2018-09-07 | 埃里斯克矿山工程机械有限公司 | A kind of Lubricating-oil Station for gyratory crusher |
-
2020
- 2020-04-30 CN CN202010363399.5A patent/CN111561517A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326626A1 (en) * | 1982-07-26 | 1984-01-26 | Litton Systems, Inc., North Columbia, S.C. | Conical crusher |
| CN201807386U (en) * | 2010-02-25 | 2011-04-27 | 上海世邦机器有限公司 | Device for compacting crushed wall of cone crusher |
| CN203161840U (en) * | 2013-03-22 | 2013-08-28 | 浙江永成机械有限公司 | Bowl sleeve on cone crusher |
| CN105579723A (en) * | 2013-09-27 | 2016-05-11 | 千住金属工业株式会社 | Sliding member and method for producing sliding member |
| CN203778123U (en) * | 2014-04-18 | 2014-08-20 | 韶关市创力机械有限公司 | Novel crusher |
| CN203778117U (en) * | 2014-04-18 | 2014-08-20 | 韶关市创力机械有限公司 | Cone crusher with expansion connection sleeve |
| CN204159369U (en) * | 2014-07-30 | 2015-02-18 | 成都大宏立机器股份有限公司 | Unit for inertial conic crusher |
| CN205815784U (en) * | 2016-07-20 | 2016-12-21 | 上海杰弗朗机械设备有限公司 | Gyratory crusher body anti-self-rotating mechanism |
| CN206246531U (en) * | 2016-11-26 | 2017-06-13 | 江阴兴澄特种钢铁有限公司 | A kind of underdrive vertical mill sliding bearing |
| CN207823102U (en) * | 2017-12-20 | 2018-09-07 | 埃里斯克矿山工程机械有限公司 | A kind of Lubricating-oil Station for gyratory crusher |
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Application publication date: 20200821 |