CN201823567U - Pull rod device of hydraulic cylinder of vertical roller mill - Google Patents
Pull rod device of hydraulic cylinder of vertical roller mill Download PDFInfo
- Publication number
- CN201823567U CN201823567U CN2010205638552U CN201020563855U CN201823567U CN 201823567 U CN201823567 U CN 201823567U CN 2010205638552 U CN2010205638552 U CN 2010205638552U CN 201020563855 U CN201020563855 U CN 201020563855U CN 201823567 U CN201823567 U CN 201823567U
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- pull rod
- rod
- hydraulic cylinder
- pull bar
- boss
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Abstract
The utility model relates to a pull rod device of a hydraulic cylinder of a vertical roller mill, which belongs to the field of pull rod devices of hydraulic cylinders. The pull rod device comprises a pull rod earring, a pull rod, a piston rod of the hydraulic oil cylinder and the like, wherein the piston rod of the hydraulic cylinder is in threaded connection with a connecting rod; the other end of the connecting rod is flexibly connected with the pull rod; a boss structure for bearing axial pulling force is arranged at a connecting end between the pull rod and the connecting rod; connecting sleeves are sheathed outside the pull rod and the connecting rod, have the axial halved structure, are provided with a plurality of connecting holes, and are connected together via connecting pieces through the connecting holes; the inner walls of the connecting sleeves have unthreaded hole structures; and a liner bushing is arranged between the outer wall of the connecting sleeve and the pull rod. The arrangement of inserting the pull rod into the boss at the end of the connecting rod can ensure the uniformity of stress; and a MC (monomer casting) nylon taper sleeve and a nylon base plate can weaken the harm of impact load to the pull rod. Therefore, the pull rod device of the hydraulic cylinder of the vertical roller mill can be effectively prevented from being ruptured and is convenient to mount, and the processing and manufacturing of the pull rod device are simplified.
Description
Technical field
The utility model relates to a kind of hydraulic cylinder pull rod device, particularly relates to a kind of hydraulic cylinder pull rod device that is used for vertical roll grinder.
Background technology
Vertical roll grinder is used for pulverizing cement raw material, clinker, slag and coal dust etc. as cement and the common visual plant of metallurgical mine industry.The vertical roll grinder that uses all adopts hydraulic cylinder as exerting pressure instrument at present, and the hydraulic cylinder pull rod device then is to transmit the critical component of working pulling force.Frequent vibration when working because of grinding roller causes the hydraulic cylinder tie component except that bearing axial tensile force, also will bear the horizontal alternate stress that is caused by irregular shock loading.Hydraulic cylinder pull rod device breakage problem all once appearred in the various large-scale vertical roller mills of development both at home and abroad, how to prevent the fracture of hydraulic cylinder pull bar, had become the key issue that improves the efficient running of vertical roll grinder.By retrieval, yet there are no and prevent the fracture of hydraulic cylinder pull bar, the device that improves the efficient running of vertical roll grinder occurs.
Summary of the invention
The utility model purpose is at the deficiencies in the prior art, and a kind of vertical roll grinder hydraulic cylinder pull rod device fracture of avoiding is provided, and simplifies processing and fabricating, the hydraulic cylinder pull rod device of the vertical roll grinder of being convenient to install.
Realize above-mentioned purpose by the following technical solutions: a kind of hydraulic cylinder pull rod device of vertical roll grinder, comprise the pull bar earrings, pull bar, hydraulic cylinder piston rod, described hydraulic cylinder piston rod is threaded with connecting rod, the other end and the pull bar of this connecting rod flexibly connect, the link of this pull bar and connecting rod is provided with the boss structure of carrying axial tension, described pull bar, the outer cover of connecting rod is equipped with adapter sleeve, this adapter sleeve is axially to divide the half hitch structure, it is provided with a plurality of connecting holes, adapter sleeve is linked together with connector by connecting hole, the inwall of this adapter sleeve is the unthreaded hole structure, adds lining between its outer wall and the pull bar.
Adopt technique scheme, compared with prior art, pull bar of the present utility model is connected by connecting rod with hydraulic cylinder piston rod, connecting rod and drag link end adopt MC nylon tapered sleeve, nylon backing plate and shaft end pressure plate to form and flexibly connect, and the type of attachment of unthreaded hole axis tile (adapter sleeve) is adopted in pull bar earrings end, simultaneously, pull bar inserts connecting-rod head the boss design, with boss shoulder carrying axial tension, guaranteed stressed uniformity, weakened the harm that shock loading produces pull bar.Under slowing down the effect that weakens the radially additional load in the roller mill work, effectively avoided rupturing, and processing and fabricating is simple, easy for installation because of the rod end that the alternation fatigue stress of additional load radially causes.Can effectively avoid the fracture of vertical roll grinder hydraulic cylinder pull rod device, simplify processing and fabricating, be convenient to install, especially be fit to the technological transformation of prototype, device structure optimization and the equipment of use of the hydraulic cylinder pull bar of vertical roll grinder and close work mechanism.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
Among the figure, pull bar earrings 1, nylon bush 2, adapter sleeve 3, nylon pad 4, connecting rod 5, hydraulic cylinder piston rod 6, hydraulic jack 7, unthreaded hole 8, boss 9, connecting hole 10, pull bar 11.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Present embodiment is a kind of hydraulic cylinder pull rod device of vertical roll grinder, by coupling sleeve 3, pull bar 9, and connecting rod 7 compositions such as grade.
See accompanying drawing 1, one end of connecting rod 5 is threaded with hydraulic cylinder piston rod 6, the other end of connecting rod 5 is connected with pull bar 11, pull bar 11 is provided with the boss 9 that carries axial tension with the link of connecting rod 5, pull bar 11 is equipped with adapter sleeve 3 with the outer cover of connecting rod 7, this adapter sleeve 3 is axially to divide half formula structure, is provided with the groove that matches with boss 9 at the connecting portion with pull bar boss 9, and boss 9 is connected in the groove.On the adapter sleeve 3 that divides half formula structure, be symmetrically arranged with a plurality of connecting holes 10, by connecting hole 10 usefulness connecting bolts adapter sleeve 3 linked together, in connecting rod 5, pull bar 11 are wrapped in.The inwall of adapter sleeve 3 is unthreaded hole 8 structures, adds nylon bush 2 between its outer wall and the pull bar 11.The effect of this structure is: slow down the radially additional load that weakens in the roller mill work, effectively avoid rupturing because of the rod end that the alternation fatigue stress of additional load radially causes, and be convenient to processing and fabricating, installation.
See Fig. 1, connecting rod 5 flexibly connects with pull bar 11.Described flexibly connecting is: both links adopt formation such as MC nylon tapered sleeve, nylon backing plate and shaft end pressure plate to flexibly connect.Between pull bar 5 and the adapter sleeve 3, install nylon bush 2 additional and realize flexible the connection, slow down the radially additional load of pull bar earrings 1.
Operation principle of the present utility model
The utility model has changed the type of attachment of traditional pull bar earrings end screw thread axis tile, concentrate for avoiding thread root stress, watt change screw thread newspaper into unthreaded hole axis tile (the adapter sleeve inwall is a unthreaded hole), install nylon bush 2 additional between adapter sleeve 3 and the pull bar 10, the link of connecting rod 5 and pull bar 11 installs MC nylon tapered sleeve or nylon backing plate or shaft end pressure plate formation additional and flexibly connects.Simultaneously, with the boss 9 of pull bar 11 insertion connecting rods 5,, guaranteed stressed uniformity with boss 9 carrying axial tensions; MC nylon tapered sleeve, nylon backing plate have weakened the harm that shock loading produces pull bar.Under slowing down the effect that weakens the radially additional load in the roller mill work, effectively avoided rupturing, and processing and fabricating is simple, easy for installation because of the rod end that the alternation fatigue stress of additional load radially causes.
Claims (2)
1. the hydraulic cylinder pull rod device of a vertical roll grinder, comprise the pull bar earrings, pull bar, hydraulic cylinder piston rod, it is characterized in that: described hydraulic cylinder piston rod is threaded with connecting rod, the other end and the pull bar of this connecting rod flexibly connect, the link of this pull bar and connecting rod is provided with the boss structure of carrying axial tension, described pull bar, the outer cover of connecting rod is equipped with adapter sleeve, this adapter sleeve is axially to divide the half hitch structure, it is provided with a plurality of connecting holes, adapter sleeve is linked together with connector by connecting hole, the inwall of this adapter sleeve is the unthreaded hole structure, adds lining between its outer wall and the pull bar.
2. the hydraulic cylinder pull rod device of vertical roll grinder according to claim 1 is characterized in that, described adapter sleeve is being provided with the groove that matches with boss with the connecting portion of boss, and described boss is connected in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205638552U CN201823567U (en) | 2010-10-18 | 2010-10-18 | Pull rod device of hydraulic cylinder of vertical roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205638552U CN201823567U (en) | 2010-10-18 | 2010-10-18 | Pull rod device of hydraulic cylinder of vertical roller mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201823567U true CN201823567U (en) | 2011-05-11 |
Family
ID=43962128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205638552U Expired - Fee Related CN201823567U (en) | 2010-10-18 | 2010-10-18 | Pull rod device of hydraulic cylinder of vertical roller mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201823567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921714A (en) * | 2016-06-14 | 2016-09-07 | 昆山莱捷有色金属有限公司 | Mold connecting sleeve improvement structure |
| CN106270216A (en) * | 2016-10-11 | 2017-01-04 | 长沙荆华电子科技有限公司 | A kind of floating junction and apply the punch press of this floating junction |
-
2010
- 2010-10-18 CN CN2010205638552U patent/CN201823567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921714A (en) * | 2016-06-14 | 2016-09-07 | 昆山莱捷有色金属有限公司 | Mold connecting sleeve improvement structure |
| CN106270216A (en) * | 2016-10-11 | 2017-01-04 | 长沙荆华电子科技有限公司 | A kind of floating junction and apply the punch press of this floating junction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TANGSHAN JIDONG EQUIPMENT + ENGINEERING CO., LTD. Free format text: FORMER OWNER: HEIBEI DUNSHI ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20121227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 063030 TANGSHAN, HEBEI PROVINCE TO: 063000 TANGSHAN, HEBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121227 Address after: 063000 Caofeidian equipment manufacturing industry zone, Hebei, Tangshan City Patentee after: Tangshan Jidong Equipment & Engineering Co., Ltd. Address before: 063030 Fengrun Road, Fengrun District, Hebei, Tangshan City Patentee before: Hebei Dunshi Engineering Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |