CN110273833B - Self-lubricating piston rod of internal drive plunger - Google Patents
Self-lubricating piston rod of internal drive plunger Download PDFInfo
- Publication number
- CN110273833B CN110273833B CN201810207058.1A CN201810207058A CN110273833B CN 110273833 B CN110273833 B CN 110273833B CN 201810207058 A CN201810207058 A CN 201810207058A CN 110273833 B CN110273833 B CN 110273833B
- Authority
- CN
- China
- Prior art keywords
- lubricating material
- material block
- lubricating
- piston rod
- copper sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a self-lubricating piston rod of an internal driving plunger, which comprises a piston rod steel core, a copper sleeve fixedly arranged on the outer surface of the piston rod steel core, a plurality of rings of grooves sequentially and radially arranged on the surface of the copper sleeve at intervals, a first lubricating material block fixedly arranged in the groove through a fixing bolt, and a second lubricating material block embedded on the outer surface of the first lubricating material block and covering the fixing bolt, wherein the exposed outer surfaces of the first lubricating material block and the second lubricating material block are flush with the outer surface of the copper sleeve. Through setting up two kinds of lubricating material, not only can realize the self-lubricating of piston rod in the operation process, but also installation and the change problem of solution lubricating material that can be fine.
Description
Technical Field
The invention relates to laminar flow cooling equipment, in particular to a self-lubricating piston rod of an internal drive plunger.
Background
The hot rolling tandem mill production lines of domestic and foreign iron and steel enterprises all use a laminar cooling device, and the main function of the laminar cooling device is to rapidly cool strip steel at a finish rolling outlet according to a set target temperature for coiling so as to ensure the product performance of the strip steel.
Taking a certain 2050 hot rolling mill in China as an example, the production variety and the specification are gradually expanded along with the continuous development, the structure of the current product is completely different from that of the product during the start-up, the primary start-up stage is plain carbon steel, and the microalloy steel and the carbon manganese steel are mainly produced at present. The existing laminar cooling system can not meet the production requirements of part of steel grades, especially some strength steels containing alloy elements (such as BS600, BS700, B510L, S45C, SS400 and the like) along with the continuous expansion of rolling specifications of a rolling line and the continuous improvement of product quality requirements of users. After the strength steel passes through a laminar flow cooling area, the strip steel is cooled unevenly due to the problems of unstable water pressure, uneven water flow distribution and the like of the conventional laminar flow cooling system, so that a series of strip shape quality problems of the strip steel occur.
To adjust the passage area in the nozzle, at least one of the plate members of the laminar flow nozzle is deformable in a direction perpendicular to the flow of cooling water, and at least one of the plates is preferably responsive to the pressure of the cooling water to cause a change in the passage area, thereby adjusting the cooling water passage area. The method provides a solution to the problem of large reduction of strip steel edge temperature by shielding the edges of the laminar cooling header, but the following problems may also exist by using the method:
resource waste: when narrower strip steel is produced, a large amount of shielded cooling water is wasted, which is not beneficial to saving production resources, consuming electricity and increasing water treatment cost;
the environment is influenced: the laminar flow cooling shielding plate brings adverse effect to the cooling water of both sides reposition of redundant personnel to motor and laminar flow roller way bearing frame, though adopted the guide plate, still deteriorated the environment of this department to a certain extent.
The failure rate is high: when the strip steel deviates, the shielding of the edge parts at two sides can not be synchronously adjusted, and when the strip steel deviates greatly, the shielding effect can not be exerted by the shielding of the edge part at one side, so that the strip steel can not be normally used when the strip steel deviates;
the mechanism is locked: the laminar cooling environment is severe, and the locking fault of a connecting rod mechanism often occurs;
the precision is not high: the shielding plate of the connecting rod mechanism is easy to deform, so that the shielding precision of two sides does not meet the requirement;
steel piling and easy damage: when the laminar cooling section has a steel stacking fault, the connecting rod mechanism and the baffle plate are easy to deform or damage;
no lower spray shielding: the link mechanism cannot be applied to downward-spraying laminar flow cooling, a downward-spraying laminar flow shielding device is not provided, the cooling of the upper surface and the lower surface of the strip steel is not uniform, and certain strip steel edge wave shape can be caused.
Disclosure of Invention
The invention aims to overcome the defects and provide a self-lubricating piston rod of an internal driving plunger, which can effectively realize self-lubricating and avoid the occurrence of jamming.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides an interior self-lubricating piston rod of drive plunger, includes the piston rod steel core, its characterized in that: the piston rod structure further comprises a copper sleeve fixedly arranged on the outer surface of the steel core of the piston rod, a plurality of rings of grooves sequentially and radially arranged on the surface of the copper sleeve at intervals, a first lubricating material block fixedly arranged in the groove through a fixing bolt, and a second lubricating material block embedded on the outer surface of the first lubricating material block and covering the fixing bolt, wherein the exposed outer surfaces of the first lubricating material block and the second lubricating material block are flush with the outer surface of the copper sleeve.
The first lubricating material block is of a ring block-shaped structure matched with the groove, a circle of embedding groove is formed in the outer surface of the first lubricating material block, and a plurality of fixing bolts penetrate through the embedding groove to be fixedly connected with the copper sleeve in the radial direction.
The second lubricating material block is in a ring block-shaped structure matched with the embedding groove and is embedded in the embedding groove.
The first lubricating material block is made of a powder metallurgy material.
The second lubricating material block is filled with a nylon material.
The copper bush is fixed on the outer surface of the steel core through casting.
In the technical scheme of the invention, the self-lubricating piston rod of the internal drive plunger comprises a piston rod steel core, a copper sleeve fixedly arranged on the outer surface of the piston rod steel core, a plurality of rings of grooves sequentially and radially arranged on the surface of the copper sleeve at intervals, a first lubricating material block fixedly arranged in the groove through a fixing bolt, and a second lubricating material block embedded on the outer surface of the first lubricating material block and covering the fixing bolt, wherein the exposed outer surfaces of the first lubricating material block and the second lubricating material block are flush with the outer surface of the copper sleeve. Through setting up two kinds of lubricating material, not only can realize the self-lubricating of piston rod in the operation process, but also installation and the change problem of solution lubricating material that can be fine.
Drawings
FIG. 1 is a schematic structural view of a hot-rolled laminar cooling apparatus of the present invention;
FIG. 2 is a structural cross-sectional view of the inner drive plunger of the present invention;
FIG. 3 is a schematic cross-sectional view of the piston rod of the present invention;
fig. 4 is a schematic sectional view taken along line a-a of fig. 3.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The self-lubricating piston rod of the hot-rolled laminar cooling device plunger is mainly used in an inner driving plunger 2 of a hot-rolled laminar cooling device 1 as shown in figures 1-4, wherein 21 in figure 2 is a piston rod, 22 is a cavity shell, and 23 is combined sealing. The piston rod 21 comprises a piston rod steel core 211, a copper sleeve 212 fixedly arranged on the outer surface of the piston rod steel core 211 through casting, a plurality of rings of grooves sequentially and radially arranged on the surface of the copper sleeve 212 at intervals, a first lubricating material block 214 fixedly arranged in the grooves through fixing bolts 213, and a second lubricating material block 215 embedded on the outer surface of the first lubricating material block 214 and covering the fixing bolts 213, wherein the exposed outer surfaces of the first lubricating material block 214 and the second lubricating material block 215 are flush with the outer surface of the copper sleeve 212, and when the piston rod 21 and the cavity shell 22 move relatively, friction between the first lubricating material block 214 and the combined seal 23 and the second lubricating material block 215 realize self-lubrication.
As an embodiment, the first lubricating material block 214 is in a ring block structure matched with the groove, a ring of embedded grooves are formed in the outer surface of the first lubricating material block 214, and a plurality of fixing bolts 213 penetrate through the embedded grooves to be radially connected and fixed with the copper bush 212.
As another example, the second lubricating material block 215 is in a ring block structure matched with the embedding groove and embedded in the embedding groove.
The first lubricating material block 214 may be made of a powder metallurgy material, which is relatively hard and can perform a lubricating function.
Powder metallurgy is a process technique for producing metal powder or metal powder (or a mixture of metal powder and nonmetal powder) as a raw material, and then forming and sintering the raw material to produce metal materials, composite materials and various products. Powder metallurgy has unique chemical compositions and mechanical and physical properties that are not attainable using conventional melt casting methods.
The second lubricating material block 215 may be filled with nylon material, so as to greatly reduce the friction coefficient and achieve good wear resistance.
fillEd nylon, i.e. fillEd polyamide (fillEd poli) a-side, is a nylon plastic prepared by using nylon resin as a base material, adding fibers and natural or synthetic fillers, and melting and mixing the mixture by an extruder.
In conclusion, the self-lubricating piston rod 21 of the internal drive plunger provided by the invention is provided with two detachable lubricating materials, so that the self-lubricating of the piston rod 21 in the operation process can be realized, and the problems of installation and replacement of the lubricating materials can be well solved.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (1)
1. The utility model provides an interior self-lubricating piston rod of drive plunger, includes the piston rod steel core, its characterized in that: the piston rod lubricating structure further comprises a copper sleeve fixedly arranged on the outer surface of the steel core of the piston rod, a plurality of rings of grooves sequentially and radially arranged on the surface of the copper sleeve at intervals, a first lubricating material block fixedly arranged in the groove through a fixing bolt, a second lubricating material block embedded on the outer surface of the first lubricating material block and covering the fixing bolt, wherein the exposed outer surfaces of the first lubricating material block and the second lubricating material block are flush with the outer surface of the copper sleeve,
the first lubricating material block is made of a powder metallurgy material;
the second lubricating material block is filled with a nylon material;
the copper sleeve is fixed on the outer surface of the steel core through casting;
the first lubricating material block is in a ring block-shaped structure matched with the groove, a circle of embedding groove is formed in the outer surface of the first lubricating material block, and a plurality of fixing bolts penetrate through the embedding groove and are radially connected and fixed with the copper sleeve;
the second lubricating material block is in a ring block-shaped structure matched with the embedding groove and is embedded in the embedding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207058.1A CN110273833B (en) | 2018-03-14 | 2018-03-14 | Self-lubricating piston rod of internal drive plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810207058.1A CN110273833B (en) | 2018-03-14 | 2018-03-14 | Self-lubricating piston rod of internal drive plunger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110273833A CN110273833A (en) | 2019-09-24 |
| CN110273833B true CN110273833B (en) | 2020-10-27 |
Family
ID=67958280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810207058.1A Active CN110273833B (en) | 2018-03-14 | 2018-03-14 | Self-lubricating piston rod of internal drive plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273833B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403381B (en) * | 2008-10-23 | 2011-04-27 | 中国石油兰州石油化工公司 | Plunger for high abrasion-proof displacement pump |
| CN102454596A (en) * | 2010-10-29 | 2012-05-16 | 四川宏华石油设备有限公司 | Copper sheathing used for connecting rod of drill pump |
| CN202746576U (en) * | 2012-08-28 | 2013-02-20 | 宁波市鄞州行健轴业有限公司 | Piston rod |
| CN105697444A (en) * | 2016-03-22 | 2016-06-22 | 扬州四启环保设备有限公司 | Graphite copper sleeve type piston rod upper assembly capable of replacing guiding belt |
| CN106481542A (en) * | 2016-12-02 | 2017-03-08 | 三汽车制造有限公司 | Concrete piston and pumping system and concrete pump |
| CN207027975U (en) * | 2017-05-15 | 2018-02-23 | 东莞市百昌精密模具配件有限公司 | A kind of the modern designs of plastics guide pillar |
-
2018
- 2018-03-14 CN CN201810207058.1A patent/CN110273833B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110273833A (en) | 2019-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101319389B1 (en) | Plunger type laminar flow cooling device | |
| JP2013515614A (en) | New bearing ring material and manufacturing method thereof | |
| CN104942252A (en) | Method for improving internal quality of heavy-rail steel blooms | |
| CN101531150A (en) | Production method of copper-aluminum composite sliding contact wire | |
| CN205949478U (en) | High -speed steel composite roll | |
| CN104259762A (en) | Forging and forming method for F22 flange ring pieces with non-uniform sections | |
| CN108202209B9 (en) | Preparation method of high-wear-resistance impact-resistant roller skin lining plate and extrusion roller | |
| CN110273833B (en) | Self-lubricating piston rod of internal drive plunger | |
| CN110449558B (en) | Casting roller for high-speed casting and rolling machine | |
| CN107520417B (en) | Sectional roller device for continuous casting of square billets | |
| CN113578980B (en) | Waterproof control device and method for loop roller of hot tandem mill | |
| CN105034227A (en) | Processing molding method of fluoroplastic pipe | |
| CN1203127A (en) | Full water-cooled roller and its making method | |
| CN101214535B (en) | Aluminium magnesium alloy and its composite material continuously concreting and forming integrative device | |
| CN108015109A (en) | A kind of high-speed steel combines edger roll | |
| CN211678168U (en) | Low-cost and repairable ceramic alloy composite lining plate | |
| CN212042503U (en) | Revolving shaft forging die | |
| CN209124858U (en) | A kind of build-up welding continuous-casting Kun in steel-making continuous casting fan-shaped section | |
| CN104308457B (en) | A kind of manufacture method on the square installation limit of aero-engine GH3536 | |
| CN102211157A (en) | Free roller for continuously casting plate blanks | |
| CN2148612Y (en) | Roller | |
| CN201143555Y (en) | Aluminium magnesium alloy and its composite material continuously concreting and forming integrative device | |
| CN100340364C (en) | Manufacturing method of eccentric axle sleeve | |
| Levandovsky et al. | Improvement of the slitting process for rebar rolling to increase the material yield and rolling mill 370 utilization at PJSC MMK | |
| CN211218489U (en) | Quick-change roller frame of ring rolling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |