CN208494440U - A kind of large-size ball mill gear ring fastening-connecting device - Google Patents
A kind of large-size ball mill gear ring fastening-connecting device Download PDFInfo
- Publication number
- CN208494440U CN208494440U CN201820552844.0U CN201820552844U CN208494440U CN 208494440 U CN208494440 U CN 208494440U CN 201820552844 U CN201820552844 U CN 201820552844U CN 208494440 U CN208494440 U CN 208494440U
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- China
- Prior art keywords
- gear ring
- boss
- fastening
- ball mill
- clip
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Abstract
A kind of large-size ball mill gear ring fastening-connecting device belongs to gear ring interconnection technique field.The arc gear ring (1) of engaging tooth is equipped with including at least two outsides, it is characterized by: being provided with multiple through-holes (7) on gear ring (1), it is connected between two adjacent teeth circle (1) end face by multiple fastening bolts (6), the bolt hole for allowing fastening bolt (6) to pass through is correspondingly provided on two gear rings (1), the axial end face of two adjacent teeth circle (1) stitching portion is equipped with the boss clamp device being fixedly connected.The utility model is on the basis of former gear ring interface is only connected with, boss device for hooping is added, using the clamping force of clip on the outside of cylinder boss, increases the pretightning force of original connection bolt, it not only can be reduced the number of bolt fracture in this way, but also the deformation of gear ring interface gap can be effectively reduced.
Description
Technical field
A kind of large-size ball mill gear ring fastening-connecting device belongs to gear ring interconnection technique field.
Background technique
Unilateral double transmission grinding machines in the prior art, grinding machine specification are Φ 4.2X13m.Designed productive capacity is 130t/h;
Abrasive body loading is 225t in grinding；Peak filling rate is 33%；Grinding machine adapted power of motor is 3350KW；Mill speed 135r/
min.The input torque for maintaining grinding machine stable operation to need are as follows: T=9550P/n=237KNm.Mill drive system schematic diagram such as Fig. 2 institute
Show.Figure it is seen that the kinetic energy transmitting in mill drive system is two output gears and grinding machine by main gear reducer
What the engagement of gear ring was completed.
The gear ring of driving mill running divides symmetrical structure in using, on two interfaces of upper and lower two panels gear ring, point
It is not fastenedly connected using 4 M56 high-strength bolts, combines the full circumferences structure of gear ring into two.Setting is ideally, main
Two output gears of speed reducer transmit equal torque (i.e. transmitting tangential force is equal), no due to the location of two gear rings
Together, larger difference will be had by leading to the component size in vertical and horizontal direction suffered on two gear ring transmission mesh tooth faces.
In view of the influence of machining, installation accuracy and metal material, subtract in the abutment joint of grinding machine two panels docking gear ring by master
When two output gear meshing point middle position regions of fast machine, the connection bolt of two panels gear ring above and below grinding machine will be caused larger
Impact force.Under larger driving force effect, the bonding for being easy to produce gear ring pair mesh tooth face is degraded, and operation vibration increases, mill
Machine gear ring interface connects bolt fracture, and gear ring interface adjacent teeth reduces main gear reducer and tooth away from bad phenomenons such as increasings
The service life of circle.Since one or two axis gear ring of speed reducer is designed using helical teeth circle, biggish operational shock impact is also easy to draw
The axial float of main gear reducer input helical teeth circle axis is played, the damage of one or two axle bearings and axis gear ring broken teeth phenomenon repeatedly occur.Mill
Maintenance cost after machine drive component is damaged because of operational shock is larger, and the repair and replacement period is long, affects normal
Manufacture of cement.
Summary of the invention
The technical problem to be solved by the utility model is to overcoming the deficiencies of the prior art and provide a kind of reduction interface
Deformation and the large-size ball mill gear ring fastening-connecting device that degrades of the gear ring pair field of conjugate action.
The utility model solve its technical problem the technical solution adopted is that: the large-size ball mill gear ring is fastenedly connected dress
It sets, the arc gear ring of engaging tooth is equipped with including at least two outsides, it is characterised in that: be provided with multiple through-holes on gear ring, two is adjacent
It is connected between gear ring end face by multiple fastening bolts, is correspondingly provided with the bolt hole for allowing fastening bolt to pass through on two gear rings, two
The axial end face of adjacent gear ring stitching portion is equipped with the boss clamp device being fixedly connected.
The utility model adds boss device for hooping, utilizes circle on the basis of former gear ring interface is only connected with
The clamping force of column outside the boss clip, increases the pretightning force of original connection bolt, and the effective connection for enhancing two halves bull gear is strong
Degree reduces deflection of the bull gear at interface, achievees the purpose that mitigate grinding machine operational shock.It is disconnected bolt had both been can be reduced in this way
The number split, and the deformation of gear ring interface gap can be effectively reduced.
Boss clamp device is equipped on the axial end face of the two adjacent teeth circle stitching portion two sides.
The boss clamp device includes boss and clip, and clip is tubular shell, and boss is cylindrical body, boss one end
It is fixed on gear ring, clip is sleeved on outside boss using interference fit.
The unique way that interface adds boss clip is driven large ring gear using grinding machine, enhances the company of intrinsic connection bolt
Intensity is connect, the increase deformation in interface gap is essentially eliminated, reduces halt production caused by the fracture because of company's intrinsic bolt in interface
Maintenance frequency has saved maintenance cost, extends service life of equipment.
The boss is axially subdivided into symmetrically arranged two semicolumns, and two semicolumns are symmetrically fixed on two arcs
On shaped ring gear, there are fixed interval (FI) between two semicolumns, close packaging clearance fixing axle in fixed interval (FI).
After the completion of cylinder boss entirety turning, with wire-electrode cutting and processing method cylinder table along diametral plane symmetry division at two
Then block is reserved the gap about 0.5mm at interface, is respectively welded on two panels gear ring.Before the installation of outside clip, must first it carry out
Heating expansion, to meet the elastic conjunction requirement of clip Yu boss 0.4mm.After assembly cooling, axis is carried out in clip outside the boss
To positioning welding, prevent clip in gear ring operational process from loosening.
Connecting plate can be equipped between the clip outer ring and gear ring.
Compared with prior art, beneficial effect possessed by the utility model is:
The utility model adds boss device for hooping, utilizes circle on the basis of former gear ring interface is only connected with
The clamping force of column outside the boss clip increases the pretightning force of original connection bolt, not only can be reduced the number of bolt fracture in this way, but also
The deformation of gear ring interface gap can be effectively reduced.
By the Optimal improvements to mill driving and lubricating system, it is not only able to reduce and shuts down replacement gear ring to connecting bolt
Maintenance frequency, reduce maintenance cost, mitigate the gear ring pair field of conjugate action and degrades phenomenon, and can be by grinding machine lubricating system
Transformation, increase to the lubrication oil supply amount of gear ring pair, reduction tooth surface abrasion extends the service life of equipment.According to many experiments
The service condition of summary, and use for reference service experience repairs time-consuming at 7 days or more during mill drive system is each, and equipment maintenance cost
With higher.It is more than 870,000 yuan that gear ring total cost is replaced in overhaul, and integral replacing speed reducer expense is more than 1,850,000 yuan.Overhaul replacement week
Phase is about at 5 years or so.The embodiment of the utility model can not only extend the service life of driving device, and can reduce
Repair and change part fund, can at least be saved by technological transformation about 370,000 yuan of expense of being repaired in primary (in repair about 40,000 yuan of labour cost, speed reducer one
About 310,000 yuan of two axle assembly accessories and gear ring joint fitting etc.), realize that saving net value should be at 320,000 yuan or more.
Detailed description of the invention
Fig. 1 is large-size ball mill gear ring fastening-connecting device structural schematic diagram.
Fig. 2 is the part Figure 1A partial enlargement diagram.
Fig. 3 is ball mill drive system and internal force analysis schematic diagram.
Wherein, 1, gear ring 2, clip 3, boss 4, gap fixing axle 5, fixed interval (FI) 6, fastening bolt 7,
Through-hole.
Specific embodiment
Fig. 1 ~ 3 are the most preferred embodiments of the utility model, and 1 ~ 3 pair of the utility model is done furtherly with reference to the accompanying drawing
It is bright.
Referring to attached drawing 1 ~ 3: a kind of large-size ball mill gear ring fastening-connecting device, including at least two outsides are equipped with engaging tooth
Arc gear ring 1, be provided with multiple through-holes 7 on gear ring 1, multiple through-hole 7 be mitigate 1 weight of gear ring go light holes.Two adjacent teeth
It encloses between 1 end face and is connected by multiple fastening bolts 6, be correspondingly provided with the bolt hole for allowing fastening bolt 6 to pass through on two gear rings 1,
The axial end face of 1 stitching portion of two adjacent teeth circle is equipped with the boss clamp device being fixedly connected.
Boss clamp device is equipped on the axial end face of 1 stitching portion two sides of two adjacent teeth circle.Boss clamp device includes
Boss 3 and clip 2, clip 2 are tubular shell, and boss 3 is cylindrical body, and 3 one end of boss is fixed on gear ring 1, and clip 2 used
The engagement sleeves that are full of are outside boss 3.Boss 3 is axially subdivided into symmetrically arranged two semicolumns, and two semicolumns are symmetrically solid
It is scheduled in two arc gear rings 1, there are fixed interval (FI) 5 between two semicolumns, close packaging clearance fixing axle in fixed interval (FI) 5
4.Connecting plate can be equipped between 2 outer ring of clip and gear ring 1.
After the completion of the whole turning of cylinder boss 3, with wire-electrode cutting and processing method cylinder table along diametral plane symmetry division at
Two pieces, the gap about 0.5mm is then reserved at interface, is respectively welded on two panels gear ring 1.It, must be first before outside clip 2 is installed
Heating expansion is carried out, to meet the elastic conjunction requirement of the 0.4mm of clip 2 and boss 3.After assembly cooling, in clip 2 and boss
3 outsides carry out axially position welding, prevent loosening for clip 2 in 1 operational process of gear ring.
In addition, the boss clamp device that boss 3 and clip 2 are formed, if boss 3 is respectively welded on two gear rings 1,
Welding stress can be not only generated, and the lock ring effect of boss clamp device can be reduced, it, can will be convex in order to reduce welding stress
Platform 3 is directly processed on gear ring 1, and boss 3 and 1 being processed as one structure of gear ring are made.
It will be seen from figure 1 that the kinetic energy transmitting in mill drive system is two output gears by main gear reducer
With grinding machine gear ring engage complete.The gear ring 1 of driving mill running divides symmetrical structure in using, semicircle in upper and lower two panels
On two interfaces of gear ring 1, it is fastenedly connected respectively using 4 M56 high-strength bolts, is combined into the complete of two semicircular shaped ring gear 1
Whole circle configurations.For the ease of influence of each interaction force to system unit in analysis mill driving system, system unit
Force analysis simultaneously be labeled in Fig. 3.Ideally, two output gears of main gear reducer transmit equal torque for setting
That is transmitting tangential force is equal, since the location of two gear rings 1 are different, causes two gear rings 1 to be driven suffered on mesh tooth face
The component size in vertical and horizontal direction will have larger difference.In view of machining, installation accuracy and metal material
The influence of material passes through two output gear meshing point middle positions of main gear reducer region in the abutment joint of grinding machine two panels docking gear ring
When, biggish impact force will be caused to the connection bolt of two panels gear ring above and below grinding machine.
In actual production the study found that two interfaces that grinding machine drives large ring gear gear ring 1 use 4 M52 bolts respectively
Be fastenedly connected, not can effectively prevent the gear ring interface adjacent teeth of bull gear away from increasing deformation, need using preferable work
Skill is improved, to reduce the deformation of interface to the greatest extent；Grinding machine speed reducer and the lubricating system for driving large ring gear gear ring may be to cause
The principal element that the gear pair field of conjugate action degrades, reply lubricating system optimize；Speed reducer output gear and bull gear
Back lash, it may be possible to the principal element for causing system operation vibration, it should be according to research conclusion to the back lash of drive system
It is adjusted.
Therefore, the utility model is not only able to reduce and be shut down by the Optimal improvements to mill driving and lubricating system
The maintenance frequency that fastening bolt 6 is used in the docking between gear ring 1 is replaced, maintenance cost is reduced, mitigates degrading for the secondary field of conjugate action of gear ring 1
Phenomenon, and the lubrication oil supply amount to gear ring pair can be increased by the transformation to grinding machine lubricating system, tooth surface abrasion is reduced,
Extend the service life of equipment.
According to the service condition that many experiments are summarized, and service experience is used for reference, repairs time-consuming 7 during mill drive system is each
More than it, and maintenance of equipment expense is higher.It is more than 870,000 yuan that gear ring total cost is replaced in overhaul, and integral replacing speed reducer expense is more than
1850000 yuan.The overhaul replacement cycle is about at 5 years or so.The embodiment of the utility model can not only extend the use of driving device
Service life, and repair in capable of reducing and change part fund, can at least be saved by technological transformation repaired in primary repaired in about 370,000 yuan of expense it is artificial
Take about 40,000 yuan, about 310,000 yuan of one or two axle assembly accessory of speed reducer and gear ring joint fitting etc. realize that saving net value should be 320,000
It is more than member.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is all without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Matter any simple modification, equivalent variations and remodeling to the above embodiments, still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (5)
1. a kind of large-size ball mill gear ring fastening-connecting device is equipped with the arc gear ring (1) of engaging tooth including at least two outsides,
It is characterized by: being provided with multiple through-holes (7) on gear ring (1), pass through multiple fastening bolts (6) between two adjacent teeth circle (1) end face
It connects, is correspondingly provided with the bolt hole for allowing fastening bolt (6) to pass through, the axial direction of two adjacent teeth circle (1) stitching portion on two gear rings (1)
End face is equipped with the boss clamp device being fixedly connected.
2. a kind of large-size ball mill gear ring fastening-connecting device according to claim 1, it is characterised in that: the two-phase
Boss clamp device is equipped on the axial end face of adjacent gear ring (1) stitching portion two sides.
3. a kind of large-size ball mill gear ring fastening-connecting device according to claim 1, it is characterised in that: the boss
Clamp device includes boss (3) and clip (2), and clip (2) is tubular shell, and boss (3) is cylindrical body, and boss (3) one end is solid
It is scheduled on gear ring (1), clip (2) is sleeved on boss (3) outside using interference fit.
4. a kind of large-size ball mill gear ring fastening-connecting device according to claim 3, it is characterised in that: the boss
(3) symmetrically arranged two semicolumns are axially subdivided into, two semicolumns are symmetrically fixed on two arc gear rings (1), and two
There are fixed interval (FI) (5) between a semicolumn, close packaging clearance fixing axle (4) in fixed interval (FI) (5).
5. a kind of large-size ball mill gear ring fastening-connecting device according to claim 3, it is characterised in that: the clip
(2) connecting plate is equipped between outer ring and gear ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552844.0U CN208494440U (en) | 2018-04-18 | 2018-04-18 | A kind of large-size ball mill gear ring fastening-connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820552844.0U CN208494440U (en) | 2018-04-18 | 2018-04-18 | A kind of large-size ball mill gear ring fastening-connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208494440U true CN208494440U (en) | 2019-02-15 |
Family
ID=65296012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820552844.0U Expired - Fee Related CN208494440U (en) | 2018-04-18 | 2018-04-18 | A kind of large-size ball mill gear ring fastening-connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208494440U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298907A (en) * | 2019-12-22 | 2020-06-19 | 嘉兴新博信息科技有限公司 | Large ore ball mill for mineral processing production |
| CN113182027A (en) * | 2021-05-08 | 2021-07-30 | 中信重工机械股份有限公司 | Special open gear structure for alumina mill and installation operation method thereof |
-
2018
- 2018-04-18 CN CN201820552844.0U patent/CN208494440U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111298907A (en) * | 2019-12-22 | 2020-06-19 | 嘉兴新博信息科技有限公司 | Large ore ball mill for mineral processing production |
| CN111298907B (en) * | 2019-12-22 | 2021-07-20 | 承德县恒伟矿业集团有限公司 | Large ore ball mill for mineral processing production |
| CN113182027A (en) * | 2021-05-08 | 2021-07-30 | 中信重工机械股份有限公司 | Special open gear structure for alumina mill and installation operation method thereof |
| CN113182027B (en) * | 2021-05-08 | 2022-04-15 | 中信重工机械股份有限公司 | Special open gear structure for alumina mill and installation operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |