CN202520691U - High-frequency high-side-load vertical mill hydrocylinder - Google Patents
High-frequency high-side-load vertical mill hydrocylinder Download PDFInfo
- Publication number
- CN202520691U CN202520691U CN2012200767147U CN201220076714U CN202520691U CN 202520691 U CN202520691 U CN 202520691U CN 2012200767147 U CN2012200767147 U CN 2012200767147U CN 201220076714 U CN201220076714 U CN 201220076714U CN 202520691 U CN202520691 U CN 202520691U
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- piston rod
- utility
- guide cover
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- cylinder body
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Abstract
The utility model relates to the field of hydrocylinders, particularly a high-frequency high-side-load vertical mill hydrocylinder which comprises a cylinder body, wherein the end of the cylinder body is provided with a guide cover; the guide cover is connected with a piston rod in a sliding mode; and the piston rod is provided with a quenching layer only on the external surface of the effective travel section. The end of the cylinder body is provided with the guide cover which has the functions of sealing and guiding, and thus, the utility model has a simple structure, and is convenient to mount and demount; the piston rod is provided with the quenching layer with high hardness and favorable wear resistance only on the external surface of the effective travel section, and thus, the utility model is especially suitable for friction under high-frequency high-side-load conditions; the untreated non-effective friction surface maintains the original toughness of the material and has favorable cracking resistance; and the partial surface of the piston rod is quenched, thereby lowering the production cost.
Description
Technical field
The utility model relates to the hydraulic jack field, and the high side of particularly a kind of high frequency is carried the Vertical Mill hydraulic jack.
Background technique
The Vertical Mill hydraulic jack is a kind of Vertical Mill hydraulic system parts that are used to produce cement, and the Vertical Mill hydraulic jack has piston, piston rod and guide cover usually.The hydraulic oil driven plunger, and drive piston rod reciprocal axial motion in guide cover; Guide cover can make piston rod unlikely crooked in axial motion, thereby has protected Sealing.Carry under the situation in high side, the microcosmic upper piston rod is prone to tendency one side, and frictional force is bigger.Under the high frequency to-and-fro motion, impulsive load is bigger, and the defective of generation is prone to expand to crackle, finally can cause rod fracture.
In order to improve the wear resistance of piston rod, usually piston rod is carried out the integral surface Quenching Treatment, but reduced piston rod surface toughness.At piston rod irregular structure place, especially, be easy to generate stress and concentrate at how much locus of discontinuities of piston rod root; And the Vertical Mill hydraulic jack is under the high frequency to-and-fro motion, and the area of stress concentration field surface is prone to produce microscopic crack under the various impact loadings; Further, because surface hardening reduced surface toughness, under impulsive load constantly, microscopic crack is circumferentially expanded, and finally entad portion invades and diffusion, causes the fracture of piston rod.
The model utility content
The technical problem that the utility model will solve is: in order to overcome the deficiency of above-mentioned existing technology, the utility model provides a kind of wear resistance good, and anti-fracture energy is strong, and the high side of the high frequency that cost is low is carried the Vertical Mill hydraulic jack.
The utility model solves the technological scheme that its technical problem adopted: the high side of a kind of high frequency is carried the Vertical Mill hydraulic jack; It comprises cylinder body; Cylinder ends is equipped with guide cover, and guide cover slidely connects piston rod, and piston rod only has quench hardened case at the outer surface of effective travel section.The guide cover that is installed on cylinder ends has sealing and leading role simultaneously, and is simple in structure, easy accessibility.Concentrate though the non-effective travel section of piston rod is prone to produce stress, especially in irregular structures such as the shaft shoulder zone of piston rod root, the surface has not kept the material original toughness inside and outside not dealing with and making this place, and anti-fracture energy is good; Therefore piston rod only has quench hardened case at effective travel section outer surface, and hardness is big, and wear resistance is good, is specially adapted to the friction under the high side of the high frequency carrier strip spare.In addition, because non-effective travel section is not rubbed, therefore this surface, place does not deal with, and has also reduced cost of production.
The beneficial effect of the utility model is: the cylinder ends that the high side of this high frequency is carried the Vertical Mill hydraulic jack is equipped with guide cover, has sealing and leading role simultaneously, and is simple in structure, easy accessibility; Piston rod only has quench hardened case at effective travel section outer surface, and hardness is big, and wear resistance is good, is specially adapted to the friction under the high side of the high frequency carrier strip spare; Surface, non-effective rubbing surface place does not deal with, and has kept the material original toughness, and anti-fracture energy is good; Piston rod local surfaces Quenching Treatment has reduced cost of production.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation that the high side of the high frequency of the utility model is carried the optimum embodiment of Vertical Mill hydraulic jack.
Among the figure: 1, cylinder body, 2, piston rod, 3, guide cover.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the schematic representation of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The high side of the high frequency of the utility model as shown in Figure 1 is carried the optimum embodiment of Vertical Mill hydraulic jack, and it comprises cylinder body 1, and cylinder body 1 end is equipped with guide cover 3, and guide cover 3 slidely connects piston rod 2, and piston rod 2 only has quench hardened case at the outer surface of effective travel section.The guide cover 3 that is installed on cylinder body 1 end has sealing and leading role simultaneously, and is simple in structure, easy accessibility.Concentrate though the non-effective travel section of piston rod 2 is prone to produce stress, especially in irregular structures such as the shaft shoulder zone of piston rod 2 roots, the surface has not kept the material original toughness inside and outside not dealing with and making this place, and anti-fracture energy is good; Therefore piston rod 2 only has quench hardened case at effective travel section outer surface, and hardness is big, and wear resistance is good, is specially adapted to the friction under the high side of the high frequency carrier strip spare.In addition, because non-effective travel section is not rubbed, therefore this surface, place does not deal with, and has also reduced cost of production.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (1)
1. the high side of high frequency is carried the Vertical Mill hydraulic jack, it is characterized in that: comprise cylinder body (1), cylinder body (1) end is equipped with guide cover (3), and said guide cover (3) slidely connects piston rod (2), and said piston rod (2) only has quench hardened case at the outer surface of effective travel section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200767147U CN202520691U (en) | 2012-03-02 | 2012-03-02 | High-frequency high-side-load vertical mill hydrocylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200767147U CN202520691U (en) | 2012-03-02 | 2012-03-02 | High-frequency high-side-load vertical mill hydrocylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520691U true CN202520691U (en) | 2012-11-07 |
Family
ID=47103643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200767147U Expired - Lifetime CN202520691U (en) | 2012-03-02 | 2012-03-02 | High-frequency high-side-load vertical mill hydrocylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520691U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953609A (en) * | 2014-05-22 | 2014-07-30 | 沈阳东北电力调节技术有限公司 | Variable-diameter oil cylinder in hydraulic loading system of vertical mill |
| CN105257622A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Wear resistant piston rod component for hydraulic cylinder |
| CN105257623A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Front guide mechanism of hydraulic cylinder |
-
2012
- 2012-03-02 CN CN2012200767147U patent/CN202520691U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953609A (en) * | 2014-05-22 | 2014-07-30 | 沈阳东北电力调节技术有限公司 | Variable-diameter oil cylinder in hydraulic loading system of vertical mill |
| CN105257622A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Wear resistant piston rod component for hydraulic cylinder |
| CN105257623A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Front guide mechanism of hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |
|
| CX01 | Expiry of patent term |