CN105750013B - The method of grinding roller and its replacing quick change shell with quick change shell - Google Patents

The method of grinding roller and its replacing quick change shell with quick change shell Download PDF

Info

Publication number
CN105750013B
CN105750013B CN201610150164.1A CN201610150164A CN105750013B CN 105750013 B CN105750013 B CN 105750013B CN 201610150164 A CN201610150164 A CN 201610150164A CN 105750013 B CN105750013 B CN 105750013B
Authority
CN
China
Prior art keywords
plate
shell
roller
quick change
orthodrome
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.)
Expired - Fee Related
Application number
CN201610150164.1A
Other languages
Chinese (zh)
Other versions
CN105750013A (en
Inventor
张建立
王建立
叶平坤
孙俊杰
李延民
马貹钢
李良国
张宗磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou University
Original Assignee
Zhengzhou University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou University filed Critical Zhengzhou University
Priority to CN201610150164.1A priority Critical patent/CN105750013B/en
Publication of CN105750013A publication Critical patent/CN105750013A/en
Application granted granted Critical
Publication of CN105750013B publication Critical patent/CN105750013B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/30Shape or construction of rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/004Shape or construction of rollers or balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

The invention discloses a kind of new grinding roller with quick change shell, including roll spindle, roller and quick change shell, roller one end is provided with small annular groove circumferentially arranged with big annular groove, the other end;The left and right half-conical shell one end portion of quick change shell is connected with orthodrome plate, the other end connection small arc-shaped plate;The joint of orthodrome plate is provided with connecting plate, and orthodrome plate inserts big annular groove, and small arc-shaped plate inserts small annular groove;Some screwed holes are distributed with orthodrome plate, roller is connected by soket head cap screw with orthodrome plate;Some radial positioning unthreaded holes are distributed with small arc-shaped plate, roller is connected by unthreaded hole at soket head cap screw and this with small arc-shaped plate.Present invention also offers the method that the new grinding roller with quick change shell changes quick change shell.The present invention can after shell abrasion the new shell of quick-replaceable, and without changing whole grinding roller, on the one hand reduce equipment replacement cost, on the other hand improve operating efficiency.

Description

The method of grinding roller and its replacing quick change shell with quick change shell
Technical field
The present invention relates to the grinding roller used in field of mechanical technique, more particularly to a kind of milling equipment.
Background technology
Grinding roller abrasion in milling equipment is very fast, and use cost remains high.Inconvenience is changed after grinding roller abrasion, it is time-consuming to take Power, labor strength is higher, and operating efficiency is relatively low.Grinding roller abrasion in milling equipment is very fast, grinding roller service life compared with Short technical problem, occur setting the technical scheme of wearing layer in grinding roller outer surface, i.e., solve " abrasion using " wearing layer " Hurry up " technical problem, this be also technology development natural process.Although inventor in practice, it has been found that adding wearing layer after grind The roller life-span is extended, compared to having saved certain use cost in the past, once but grinding roller outer surface have and worn at one, then need Change whole grinding roller, use cost is still higher, and wear after change it is still very inconvenient, change the grinding roller time it is longer, give The normal operation of milling equipment is made troubles.
The content of the invention
It is an object of the invention to provide a kind of grinding roller with quick change shell, can after shell abrasion quick-replaceable it is new Shell, and without changing whole grinding roller, on the one hand reduce equipment replacement cost, on the other hand improve replacing efficiency, contract Short milling equipment is because change the downtime that grinding roller is brought.
To achieve the above object, the grinding roller with quick change shell of the invention includes roll spindle, roller and quick change shell, Roll spindle connects roller by self-aligning bearing, and roller is in taper type, and the larger one end of roller diameter is circumferentially arranged with big ring Connected in star, the less one end of roller is circumferentially arranged with small annular groove;
Quick change shell is in the taper being adapted with the radial surface of the roller, and quick change shell includes two semicircle conical shells Body, respectively left semicircle cone shell and right semi-circle cone shell, left and right half-conical shell structure is identical, and left and right semicircle cone shell is straight The larger one end in footpath is respectively fixedly connected with the orthodrome plate being adapted with the big annular groove, left and right semicircle cone shell The less one end of diameter is respectively fixedly connected with the small arc-shaped plate being adapted with the big annular groove;Left and right semicircle conical shell Orthodrome plate on body is stitched together to form annular, and the joint of the orthodrome plate on left and right semicircle cone shell, which is provided with, to be connected Fishplate bar, together with one end of connecting plate is connected by screw with the orthodrome plate on left semicircle cone shell, the other end of connecting plate Together with being connected by screw with the orthodrome plate on right semi-circle cone shell;
Orthodrome plate on left and right semicircle cone shell inserts the big annular groove, the roundlet on left and right semicircle cone shell Arc plate inserts the small annular groove;
Be evenly distributed with some screwed holes on the orthodrome plate, at the larger axial end of roller diameter with the great circle The corresponding unthreaded hole for offering step of screwed hole on arc plate, soket head cap screw is provided with unthreaded hole of step at this, at this The inner end of soket head cap screw is threadedly coupled with the screwed hole on the orthodrome plate;
Be evenly distributed with some radial positioning unthreaded holes on the small arc-shaped plate, on the less axial end of roller diameter with institute State that the radial positioning unthreaded hole on small arc-shaped plate is corresponding to offer screwed hole, soket head cap screw is provided with screwed hole at this, at this The inner end of soket head cap screw is stretched into radial positioning unthreaded hole;
It is corresponding with the connecting plate on the larger axial end of roller diameter to be provided with breach.
The outside face pressure of the self-aligning bearing is provided with roller end cap, and roller end cap is bolted to connection with roller, roller Rotary shaft lip seal and rubber dust-proof sealing ring are provided between sub- end cap and roll spindle.
The left semicircle cone shell includes the splice plate of some fan annulars, the orthodrome plate and the small arc-shaped plate by institute State some splice plates and be welded together to form the left semicircle cone shell;There is gap between contiguous concatenation plate;The right semi-circle The structure of cone shell is identical with the structure of left semicircle cone shell.
The present invention also aims to provide a kind of side of above-mentioned grinding roller with quick change shell when changing quick change shell Method.
To realize the purpose, the method for replacing quick change shell of the invention is carried out as follows successively:First step is Soket head cap screw at orthodrome plate and small arc-shaped plate is unscrewed and removed, make orthodrome plate and small arc-shaped plate with it is corresponding in Hex screw is separated, then the soket head cap screw at connecting plate is unscrewed and removed, and connecting plate is taken down, then by old quick change shell Left and right semicircle cone shell remove;
Second step is that the orthodrome plate of the left and right semicircle cone shell of new quick change shell is inserted into big annular groove respectively, And the small arc-shaped plate of the left and right semicircle cone shell of new quick change shell is inserted into small annular groove respectively, by left and right semicircle conical shell Body is installed on roller, and the unthreaded hole of the screwed hole to orthodrome plate and small arc-shaped plate respectively at two axial ends of roller Inside it is put into soket head cap screw;
Third step is to be fixed together left and right semicircle cone shell with connecting plate and soket head cap screw;
Four steps is to tighten each soket head cap screw, you can installs new quick change shell.
The present invention has the advantage that:
The present invention is simple in construction, is not only convenient for manufacturing, and is worn in grinding roller work a period of time, quick change shell Afterwards, quick change shell can be easily changed, and need not change and extort a confession a grinding roller, has thus greatly saved the use of grinding roller Cost.At the same time, replacing quick change shell is convenient and simple, and the time that the used time compares replacing grinding roller in the past shortens several times, significantly Improve replacing efficiency.In a word, using the present invention, while the double action for reducing cost and improving operating efficiency is realized, tool There is good application value.
There is gap between contiguous concatenation plate, the stress influence in milling process can be reduced, extend the use of quick change shell Life-span.
The method of replacing quick change shell in the present invention is simple and convenient, few using instrument(Main tool is only that interior hexagonal is pulled Hand), the used time is short, and labor strength is relatively low.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is Fig. 1 left view;
Fig. 3 is the structural representation of left and right semicircle cone shell;
Fig. 4 is the left view structural representation of quick change shell;
Fig. 5 is the enlarged drawing at A in Fig. 1;
Fig. 6 is the enlarged drawing at B in Fig. 1.
Embodiment
As shown in Figures 1 to 6, the grinding roller with quick change shell of the invention is included outside roll spindle 1, roller 2 and quick change Shell 3(Cavity is provided with roller 2), roll spindle 1 connects roller 2 by self-aligning bearing 4, and roller 2 is in taper type, the diameter of roller 2 Larger one end is circumferentially arranged with big annular groove 5, and 2 less one end of roller is circumferentially arranged with small annular groove 6;
Quick change shell 3 is in the taper being adapted with the radial surface of the roller 2(Quick change shell 3 as shown in Figures 1 to 4 Cross-section profile shape it is trapezoidal), quick change shell 3 includes two semicircle cone shells, respectively left semicircle cone shell 7 and right semi-circle Cone shell 8, left and right semicircle cone shell 7,8 structures are identical, and one end that left and right semicircle cone shell 7,8 is relatively large in diameter is to weld Mode is respectively fixedly connected with the orthodrome plate 9 being adapted with the big annular groove 5, left and right semicircle cone shell 7,8 diameters compared with Small one end is respectively fixedly connected with the small arc-shaped plate 10 being adapted with the big annular groove 5 in a welding manner;It is left and right Orthodrome plate 9 on semicircle cone shell 7,8 is stitched together to form annular, the orthodrome plate on left and right semicircle cone shell 7,8 9 joint is provided with connecting plate 11(The both ends of orthodrome plate 9 are joint), one end and the left semicircle cone shell of connecting plate 11 Orthodrome plate 9 on 7 is connected by screw together, the other end and the orthodrome plate 9 on right semi-circle cone shell 8 of connecting plate 11 It is connected by screw together;
Orthodrome plate 9 on left and right semicircle cone shell 7,8 inserts the big annular groove 5, left and right semicircle cone shell 7,8 On small arc-shaped plate 10 insert the small annular groove 6;
Be evenly distributed with some screwed holes 13 on the orthodrome plate 9, at the axial end that roller 2 is relatively large in diameter with it is described The corresponding unthreaded hole for offering step of screwed hole 13 on orthodrome plate 9, interior hexagonal spiral shell is provided with unthreaded hole of step at this Nail 12, inner end of soket head cap screw 12 is threadedly coupled with the screwed hole 13 on the orthodrome plate 9 at this.By adjusting at this The degree that soket head cap screw 12 screws, quick change shell 3 can be driven by orthodrome plate 9, so as to which positioning is fast in the axial direction The position of shell 3 is changed, prevents quick change shell 3 from moving in the axial direction.
Some radial positioning unthreaded holes 14, the less axial end of the diameter of roller 2 are evenly distributed with the small arc-shaped plate 10 The upper screwed hole for offering step corresponding with the radial positioning unthreaded hole 14, soket head cap screw is provided with this in screwed hole 12, inner end of soket head cap screw 12 is stretched into radial positioning unthreaded hole 14 at this, so as to prevent quick change shell 3 in radial directions It is mobile, prevent from sticking up outside quick change shell 3;
It is corresponding with the connecting plate 11 on the axial end that roller 2 is relatively large in diameter to be provided with breach 15;Breach 15 is convenient to Mount and dismount connecting plate 11, will two orthodrome plates 9 connect or two orthodrome plates 9 be separated.
The outside face pressure of the self-aligning bearing 4 is provided with roller end cap 16, roller end cap 16 and the company of being bolted of roller 2 Connect, rotary shaft lip seal 17 and rubber dust-proof sealing ring 18 are provided between roller end cap 16 and roll spindle 1.
The left semicircle cone shell 7 includes the splice plate 19 of some fan annulars, the orthodrome plate 9 and the small arc-shaped plate Some splice plates 19 are welded together to form the left semicircle cone shell 7 by 10;There is gap between contiguous concatenation plate 19; The structure of the right semi-circle cone shell 8 is identical with the structure of left semicircle cone shell 7.There is gap between contiguous concatenation plate 19, can Reduce the stress influence in milling process.
The invention also discloses the method that the grinding roller with quick change shell changes quick change shell, successively according to the following steps Carry out:
First step is that the soket head cap screw 12 at orthodrome plate 9 and small arc-shaped plate 10 is unscrewed and removed, and makes orthodrome Plate 9 and small arc-shaped plate 10 are separated with corresponding soket head cap screw 12, then the soket head cap screw 12 at connecting plate 11 is unscrewed And remove, connecting plate 11 is taken down, then removes the left and right semicircle cone shell 7,8 of old quick change shell 3;
Second step is that the orthodrome plate 9 of the left and right semicircle cone shell 7,8 of new quick change shell 3 is inserted into big annular respectively Groove 5, and the small arc-shaped plate 10 of the left and right semicircle cone shell 7,8 of new quick change shell 3 is inserted into small annular groove 6 respectively, will Left and right semicircle cone shell 7,8 is installed on roller 2, and respectively to the spiral shell of orthodrome plate 9 at two axial ends of roller 2 Soket head cap screw 12 is put into the unthreaded hole of pit 13 and small arc-shaped plate 10;
Third step is to be fixed together left and right semicircle cone shell 7,8 with connecting plate 11 and soket head cap screw 12;
Four steps is to tighten each soket head cap screw 12, you can installs new quick change shell 3.
Cinching process during installation:Soket head cap screw 12 is passed through on the orthodrome bar of the unthreaded hole and quick change shell 3 on roller 2 Screwed hole 13, the head of a nail of soket head cap screw 12 is stuck at the step of stepped hole, thus position will not occur again in the axial direction Move(It will not be moved to the right shown in Fig. 1).Continue to turn soket head cap screw 12, due to soket head cap screw 12 axially do not have Displacement, therefore orthodrome plate 9 drives quick change shell 3 to be moved to the axial end that roller 2 is relatively large in diameter, the can of quick change shell 3 It is close to above roller 2.
The installation method first of quick change shell 3 is:
Step 1:By self-aligning bearing 4, roller 2, rotary shaft lip seal 17, roller end cap 16, rubber dust-proof sealing ring 18 are sequentially arranged in roll spindle 1 and fix;
Step 2:The orthodrome plate 9 is inserted into big annular groove 5, the small arc-shaped plate 10 is inserted into small annular groove 6, left and right semicircle cone shell 7,8 is installed on roller 2, and respectively to orthodrome plate 9 at two axial ends of roller 2 Screwed hole 13 and small arc-shaped plate 10 unthreaded hole in be put into soket head cap screw 12;
The inner hex screw 12 of axially position, orthodrome plate 9 and big annular groove 5, the inner hex screw 12 of radial positioning, Small arc-shaped plate 10 and small annular groove 6;
Step 3:Left and right semicircle cone shell 7,8 is fixed together with connecting plate 11 and soket head cap screw 12;
Step 4:Tighten each soket head cap screw 12, you can install quick change shell 3.
The method for remove old quick change shell 3, more renewing quick change shell 3 is:
First step is that the soket head cap screw 12 at orthodrome plate 9 and small arc-shaped plate 10 is unscrewed and removed, and makes orthodrome Plate 9 and small arc-shaped plate 10 are separated with corresponding soket head cap screw 12, then the soket head cap screw 12 at connecting plate 11 is unscrewed And remove, connecting plate 11 is taken down, then removes the left and right semicircle cone shell 7,8 of old quick change shell 3;
Second step is that the orthodrome plate 9 of the left and right semicircle cone shell 7,8 of new quick change shell 3 is inserted into big annular respectively Groove 5, and the small arc-shaped plate 10 of the left and right semicircle cone shell 7,8 of new quick change shell 3 is inserted into small annular groove 6 respectively, will Left and right semicircle cone shell 7,8 is installed on roller 2, and respectively to the spiral shell of orthodrome plate 9 at two axial ends of roller 2 Soket head cap screw 12 is put into the unthreaded hole of pit 13 and small arc-shaped plate 10;
Third step is to be fixed together left and right semicircle cone shell 7,8 with connecting plate 11 and soket head cap screw 12;
Four steps is to tighten each soket head cap screw 12, you can installs new quick change shell 3.
Above example is only to illustrative and not limiting technical scheme, although with reference to above-described embodiment to this hair It is bright to be described in detail, it will be understood by those within the art that:Still the present invention can be modified or be waited With replacing, any modification or partial replacement without departing from the spirit and scope of the present invention, it all should cover the power in the present invention Among sharp claimed range.

Claims (3)

1. the grinding roller with quick change shell, including roll spindle, roller and quick change shell, roll spindle are connected by self-aligning bearing Roller, roller are in taper type, and the larger one end of roller diameter is circumferentially arranged with big annular groove, the less one end edge of roller It is circumferentially with small annular groove;
Quick change shell is in the taper being adapted with the radial surface of the roller, and quick change shell includes two semicircle cone shells, point Not Wei left semicircle cone shell and right semi-circle cone shell, left and right half-conical shell structure is identical, left and right half-conical diameter of the housing compared with Big one end is respectively fixedly connected with the orthodrome plate being adapted with the big annular groove, left and right half-conical diameter of the housing Less one end is respectively fixedly connected with the small arc-shaped plate being adapted with the big annular groove;On left and right semicircle cone shell Orthodrome plate be stitched together to form annular, the joint of the orthodrome plate on left and right semicircle cone shell is provided with connecting plate, Together with one end of connecting plate is connected by screw with the orthodrome plate on left semicircle cone shell, the other end of connecting plate and right half Orthodrome plate on cone shell is connected by screw together;
Orthodrome plate on left and right semicircle cone shell inserts the big annular groove, the small arc-shaped plate on left and right semicircle cone shell Insert the small annular groove;
Be evenly distributed with some screwed holes on the orthodrome plate, at the larger axial end of roller diameter with the orthodrome plate On the corresponding unthreaded hole for offering step of screwed hole, is provided with soket head cap screw in unthreaded hole of step at this, at this in six The inner end of angle screw is threadedly coupled with the screwed hole on the orthodrome plate;
Be evenly distributed with some radial positioning unthreaded holes on the small arc-shaped plate, on the less axial end of roller diameter with it is described small Radial positioning unthreaded hole on arc plate is corresponding to offer screwed hole, and soket head cap screw is provided with screwed hole at this, at this in six The inner end of angle screw is stretched into radial positioning unthreaded hole;
It is corresponding with the connecting plate on the larger axial end of roller diameter to be provided with breach;
The left semicircle cone shell includes the splice plate of some fan annulars, if the orthodrome plate and the small arc-shaped plate will be described Dry splice plate weld forms the left semicircle cone shell together;There is gap between contiguous concatenation plate;The right semi-circle conical shell The structure of body is identical with the structure of left semicircle cone shell.
2. the grinding roller according to claim 1 with quick change shell, it is characterised in that:The outside face pressure of the self-aligning bearing Provided with roller end cap, roller end cap is bolted to connection with roller, and rotary shaft is provided between roller end cap and roll spindle Lip-type packing and rubber dust-proof sealing ring.
3. the method that the grinding roller with quick change shell changes quick change shell described in claim 1 or 2, it is characterised in that press successively Following steps are carried out:
First step is that the soket head cap screw at orthodrome plate and small arc-shaped plate is unscrewed and removed, and makes orthodrome plate and small arc-shaped Plate is separated with corresponding soket head cap screw, then the soket head cap screw at connecting plate is unscrewed and removed, and takes down connecting plate, so The left and right semicircle cone shell of old quick change shell is removed afterwards;
Second step is that the orthodrome plate of the left and right semicircle cone shell of new quick change shell is inserted into big annular groove respectively, and will The small arc-shaped plate of the left and right semicircle cone shell of new quick change shell inserts small annular groove respectively, and left and right semicircle cone shell is equal On roller, and put respectively in the unthreaded hole of the screwed hole to orthodrome plate and small arc-shaped plate at two axial ends of roller Enter soket head cap screw;
Third step is to be fixed together left and right semicircle cone shell with connecting plate and soket head cap screw;
Four steps is to tighten each soket head cap screw, you can installs new quick change shell.
CN201610150164.1A 2016-03-16 2016-03-16 The method of grinding roller and its replacing quick change shell with quick change shell Expired - Fee Related CN105750013B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610150164.1A CN105750013B (en) 2016-03-16 2016-03-16 The method of grinding roller and its replacing quick change shell with quick change shell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610150164.1A CN105750013B (en) 2016-03-16 2016-03-16 The method of grinding roller and its replacing quick change shell with quick change shell

Publications (2)

Publication Number Publication Date
CN105750013A CN105750013A (en) 2016-07-13
CN105750013B true CN105750013B (en) 2018-01-26

Family

ID=56333357

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610150164.1A Expired - Fee Related CN105750013B (en) 2016-03-16 2016-03-16 The method of grinding roller and its replacing quick change shell with quick change shell

Country Status (1)

Country Link
CN (1) CN105750013B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108043869A (en) * 2017-12-10 2018-05-18 巫溪县晏春星农业有限公司 A kind of agricultural soil remediation device
CN110270412B (en) * 2019-07-16 2020-12-08 新沂市锡沂高新材料产业技术研究院有限公司 Vertical mill roller sleeve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10218777B4 (en) * 2002-04-26 2004-05-13 Rieter-Werke Gmbh Roller of a roller mill
CN2728616Y (en) * 2004-10-10 2005-09-28 王大夫 Pendulum flour mill grinding roll
CN203957391U (en) * 2014-08-08 2014-11-26 厦门嘉申能源技术有限公司 The fast assembly and disassembly mechanism of a kind of pressure roller roller and arc formwork
CN204276063U (en) * 2014-12-09 2015-04-22 洛阳大华重型机械有限公司 A kind of tooth nested structure of rod-toothed crusher

Also Published As

Publication number Publication date
CN105750013A (en) 2016-07-13

Similar Documents

Publication Publication Date Title
CN108591282A (en) The method of sleeve and locking for the sleeve of bearing for bearing
CN106050182B (en) A kind of enhanced synchronous rotary preventer
CN105750013B (en) The method of grinding roller and its replacing quick change shell with quick change shell
CN105840106A (en) Fixing method for realizing detachability of PDC (polycrystalline diamond compact) teeth for PDC bit
CN105402412B (en) For the detachable sealing ring component in rotary shaft
CN106044103A (en) Quick-replaceable carrier roller
CN109577903A (en) Rotating blowout preventer rotation assembly easy to assemble
CN106583808B (en) A kind of ready-package cutter
CN100584529C (en) Pneumatic sander
CN209494545U (en) Rotating blowout preventer rotation assembly easy to assemble
CN201124321Y (en) Grinder for high pressure pipe mouth sealing face
CN106351966A (en) Novel bearing supporting device for boring machine
CN104847892B (en) A kind of extruder cylinder piston rod and cylinder structure
CN205820242U (en) Quick-replaceable carrying roller
CN206965084U (en) A kind of pulley of the built-in wheel hub motor of replaceable tire
CN2569974Y (en) Diamond roller locking apparatus
CN107457047A (en) A kind of large-scale overflow ball mill input and output material end cap liner plate
CN202992174U (en) High-pressure-resisting mechanical sealing device
CN205955687U (en) Enhancement mode synchronous revolution preventer
CN112031673A (en) Quick-screwing-unscrewing drill rod with convenient-to-disassemble and assemble joint
CN206830908U (en) A kind of wear-resistant knife gate valve
CN209494542U (en) Movable sealing sleeve in swivel control head rotation assembly
CN206811494U (en) A kind of auger spindle locking device on saw drilling machine tool
CN217248755U (en) Split type compression roller for granulator
CN207153843U (en) A kind of rolling-bearing ball-crusher Combined hollow axle construction

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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: 20180126

Termination date: 20190316