CN205423388U - Hydro -cylinder with guide structure - Google Patents
Hydro -cylinder with guide structure Download PDFInfo
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- CN205423388U CN205423388U CN201620131464.0U CN201620131464U CN205423388U CN 205423388 U CN205423388 U CN 205423388U CN 201620131464 U CN201620131464 U CN 201620131464U CN 205423388 U CN205423388 U CN 205423388U
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Abstract
The utility model relates to a railway maintenance equipment technical field especially relates to a hydro -cylinder with guide structure. The one end of this hydro -cylinder with guide structure's cylinder body is equipped with and is used for hydraulic oil to get into the hydraulic fluid port in the cylinder body, and the inner sealing cover of the other end is equipped with the piston rod, and the reciprocating axially of cylinder body can be followed to the piston rod, the one end of piston rod compresses tightly and is equipped with guide structure, and guide structure sets up with the hydraulic fluid port relatively to make guide structure can utilize hydraulic oil to provide the guide effect that has wear -resistant effect for the motion of piston rod. It is little that this hydro -cylinder with guide structure has a deflection, and the direction precision is high, makes the engineering vehicle who has this hydro -cylinder can bear the advantage of heavy load motion, and strong resistance to abrasion, can improve the life of cylinder body.
Description
Technical field
This utility model relates to railway maintenance equipment technical field, particularly relates to a kind of oil cylinder with guide frame.
Background technology
Railway large-scale Maintenance Machinery engineering truck, in some railway maintenance operates, the car body oil cylinder of use, support whole car body, load capacity is big.In order to ensure the service life of oil cylinder, generally guide frame is set in car body oil cylinder.The material of the car body oil cylinder guide frame of prior art typically uses nonmetal polymer phenolic resin, its concrete structure as shown in Figure 1: including cylinder body 1 ', piston rod 2 ', cylinder body seals 3 ', piston guide 4 ', hydraulic fluid port 5 '.The operation principle of oil cylinder is, the hydraulic oil of certain pressure is injected from hydraulic fluid port 5 ', it is full of the right side cavity of cylinder body 1 ', cylinder body seals the left side that 3 ' salable cylinder bodies 1 ' make hydraulic oil can not enter cylinder body 1 ', it is allowed to produce pressure differential, promoting piston rod 2 ' to move to the left, thus promote car body, piston guide 4 ' ensure that the direction of piston movement.
The material typically used yet with the car body oil cylinder guide frame of prior art is nonmetal polymer phenolic resin, and it is little that this type of nonmetal polymer has carrying, deforms big shortcoming；When the load of oil cylinder is bigger, the deflection being easily caused piston guide 4 ' is relatively big, is likely to result between piston rod 2 ' and cylinder body 1 ' direct friction producing metal with metal, causes the inwall of cylinder body 1 ' to scratch, and cylinder body 1 ' leakage of oil, so that oil cylinder is scrapped；Secondly, the anti-wear performance of nonmetal polymer is general, when after piston guide 4 ' abrasion rapidly, also easily causes the direct friction of piston rod 2 ' and cylinder body 1 ', causes oil cylinder to be scrapped.
Problem in view of the aforementioned technical background, the utility model proposes a kind of oil cylinder with guide frame.
Utility model content
(1) to solve the technical problem that
The technical problems to be solved in the utility model there is provided a kind of oil cylinder with guide frame, has good wearability, it is possible to increase the bearing capacity of car body oil cylinder, thus improves the service life of car body oil cylinder.
(2) technical scheme
In order to solve above-mentioned technical problem, this utility model provides a kind of oil cylinder with guide frame, including cylinder body and piston rod, one end of described cylinder body is provided with and enters the hydraulic fluid port in cylinder body for hydraulic oil, the inner sealing of the other end is set with described piston rod, and described piston rod can be along the axially reciprocating of cylinder body；One end compression fit of described piston rod has guide frame, described guide frame to be oppositely arranged with hydraulic fluid port, so that described guide frame can utilize the motion that hydraulic oil is piston rod to provide the guide effect with abrasion resistant effect.
Further, described guide frame includes piston guide bush and gland, described piston guide bush by gland compression fit in described piston rod one end relative with hydraulic fluid port.
Further, it is provided with in described piston guide bush for being sleeved on the through hole outside one end relative with hydraulic fluid port on described piston rod, the outer wall of described piston guide bush is provided with along its excircle the logical oil groove passed through for described hydraulic oil.
Further, when the quantity of described logical oil groove is multiple, multiple described logical oil grooves are uniformly distributed with the central shaft of described piston guide bush for axle center along its outer wall respectively, and multiple described logical oil groove along described piston guide bush axially through setting.
Further, the quantity of described logical oil groove is three, and three described logical oil grooves are uniformly distributed with the central shaft of described piston guide bush for axle center along its outer wall respectively；The bottom land of three described logical oil grooves and the equal squarely of sidewall, and respectively along described piston guide bush axially through setting.
Further, the outer wall of described gland is provided with the step in being sleeved on described piston guide bush, and described gland is set in one end relative with hydraulic fluid port on described piston rod by bolt presses.
Further, when the quantity of described bolt is multiple, multiple described bolts are arranged on described gland with the central shaft of gland uniformly for the center of circle.
Further, also include that described cylinder body seals and is loaded on outside one end that described piston rod is relative with hydraulic fluid port with guide frame sequentially clamping sleeve for being sealed by described hydraulic oil seal cylinder body in cylinder body.
Further, the material of described guide frame is tin bronze or spheroidal graphite cast-iron.
(3) beneficial effect
Technique scheme of the present utility model has the advantages that the oil cylinder with guide frame of the present utility model includes cylinder body and piston rod, one end of cylinder body is provided with and enters the hydraulic fluid port in cylinder body for hydraulic oil, the inner sealing of the other end is set with piston rod, and piston rod can be along the axially reciprocating of cylinder body；One end compression fit of piston rod has guide frame, guide frame to be oppositely arranged with hydraulic fluid port, so that guide frame can utilize the motion that hydraulic oil is piston rod to provide the guide effect with abrasion resistant effect.This has the oil cylinder of guide frame by compression fit guide frame on the piston rod, guide frame can be made to utilize the hydraulic oil being passed through in cylinder body to provide the higher guide effect with good abrasion resistant effect of precision for piston rod, it is little that it has deflection, guiding accuracy is high, the advantage that can bear heavy duty motion, and wearability is strong, the service life of cylinder body can be improved.
Accompanying drawing explanation
Fig. 1 is the installation diagram of the oil cylinder guide frame of prior art；
The installation diagram of the oil cylinder guide frame of Fig. 2 this utility model embodiment；
Fig. 3 is the front view of the piston guide bush of this utility model embodiment；
Fig. 4 is the side view cutaway drawing of the piston guide bush of this utility model embodiment；
Fig. 5 is the side view cutaway drawing of the gland of this utility model embodiment.
In Fig. 1,1 ', cylinder body；2 ', piston rod；3 ', cylinder body seals；4 ', piston guide；5 ', hydraulic fluid port；
In Fig. 2～Fig. 5,1, cylinder body；2, piston rod；3, cylinder body seals；4, piston guide bush；5, gland；6, bolt；7, hydraulic fluid port.
Detailed description of the invention
With embodiment, embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.Following example are used for illustrating this utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
As shown in Figure 2, the oil cylinder with guide frame described in the present embodiment includes cylinder body 1 and piston rod 2, one end of cylinder body 1 is provided with and enters the hydraulic fluid port 7 in cylinder body 1 for hydraulic oil, and the inner sealing of the other end is set with piston rod 2, and piston rod 2 can be along the axially reciprocating of cylinder body 1；One end compression fit of piston rod 2 has guide frame, guide frame is oppositely arranged with hydraulic fluid port 7, so that guide frame can utilize the motion that hydraulic oil is piston rod 2 to provide the guide effect with abrasion resistant effect, by compression fit guide frame on piston rod 2, guide frame can be made to utilize the hydraulic oil being passed through in cylinder body 1 to provide precision the higher guide effect with good abrasion resistant effect for piston rod 2, it is little that it has deflection, guiding accuracy is high, the advantage that can bear heavy duty motion, and wearability is strong, the service life of cylinder body 1 can be improved.
The oil cylinder with guide frame of the present embodiment also includes for hydraulic oil seal cylinder body in cylinder body 1 is sealed 3, cylinder body seals 3 and is loaded on outside one end that piston rod 2 is relative with hydraulic fluid port 7 with guide frame sequentially clamping sleeve, when hydraulic oil enters cylinder body 1 by hydraulic fluid port 7, guide frame can be passed, then sealed 3 by cylinder body to be sealed in cylinder body 1, so that cylinder body 1 is inside and outside forms pressure differential, to promote the most reciprocating along cylinder body 1 of piston rod 2.
Wearability in order to ensure guide frame is good, and the material being preferably directed structure is tin bronze, No. 45 steel or spheroidal graphite cast-iron, and in the present embodiment, the material of guide frame is preferably tin bronze.
Can provide the guide effect with abrasion resistant effect in order to ensure the guide frame of oil cylinder, the guide frame of the present embodiment includes piston guide bush 4 and gland 5, piston guide bush 4 by gland 5 compression fit in piston rod 2 one end relative with hydraulic fluid port 7.
As shown in Figure 3, Figure 4, it is provided with in the piston guide bush 4 of the present embodiment for being sleeved on the through hole outside one end relative with hydraulic fluid port 7 on piston rod 2, so that piston guide bush 4 can closely be sleeved on outside piston rod 2, so that piston guide bush 4 provides, for piston rod 2, the guide effect that precision is higher；On the outer wall of piston guide bush 4, one or more logical oil groove passed through for hydraulic oil is set along its excircle, the hydraulic oil flowing into cylinder body 1 from hydraulic fluid port 7 can pass from logical oil groove, so that piston rod 2 can be directly by the pressure effect of hydraulic oil, and when piston rod 2 is reciprocating, piston rod 2 and guide frame are respectively due to the lubrication of hydraulic oil is without the inwall generation direct friction with cylinder body 1, thus improve the service life of cylinder body 1.
In order to ensure hydraulic oil circulation efficiency in logical oil groove, the quantity preferably leading to oil groove is one or more, when the quantity of logical oil groove is one, one logical oil groove presets the lines outer wall setting along described piston guide bush 4 with one, this default lines can be along piston guide bush 4 axially through setting, or spiral setting along the outer wall of piston guide bush 4, when the quantity of described logical oil groove is multiple, multiple logical oil grooves are uniformly distributed with the central shaft of piston guide bush 4 for axle center along its outer wall respectively, and multiple logical oil groove along piston guide bush 4 axially through setting, so that the outer wall energy of piston guide bush 4 is uniformly by the lubrication of hydraulic oil, increase the piston guide bush 4 wearability to the inwall of cylinder body 1.
In the present embodiment, the quantity preferably leading to oil groove is three, and three logical oil grooves are uniformly distributed with the central shaft of piston guide bush 4 for axle center along its outer wall respectively；The bottom land of three logical oil grooves and the equal squarely of sidewall, and respectively along piston guide bush 4 axially through setting, high to guarantee the circulation efficiency of the hydraulic oil of three logical oil grooves.
In order to ensure cylinder body seal 3 and piston guide bush 4 can be outside sequentially clamping sleeve be contained in piston rod 2, in the present embodiment, as shown in Figure 5, the outer wall of gland 5 is provided with the step in being sleeved on piston guide bush 4, and gland 5 is loaded on one end relative with hydraulic fluid port 7 on piston rod 2 by bolt 6 clamping sleeve, to ensure motion credibility and the stability of piston rod 2.
In order to the reciprocating motion stability making piston rod 2 is higher, the guiding accuracy of guide frame is higher, and the quantity of preferred bolt 6 is multiple, and multiple bolts 6 are arranged on gland 5 with the central shaft of gland 5 uniformly for the center of circle.
The assembling principle of the oil cylinder with guide frame of the present embodiment is, first cylinder body is sealed outside one end relative with hydraulic fluid port 7 that 3 sets install to piston rod 2, again piston guide bush 4 set is installed on piston rod 2, keep off and seal between 3 and hydraulic fluid port 7 at cylinder body, then gland 5 is sleeved on piston rod 2, push down piston guide bush 4, with bolt 6, gland 5 is fixed on piston rod 2, so that cylinder body is sealed 3, piston guide bush 4 and gland 5 sequentially clamping sleeve are contained in outside piston rod 2, the piston rod 2 assembled is loaded in cylinder body 1, after hydraulic fluid port 7 injects the hydraulic oil of certain pressure, the inside of cylinder body 1 produces pressure differential, piston rod 2 is promoted, left side in shown in Fig. 2 is moved, thus promote the engineering truck motion with oil cylinder as above, realize engineering action.
In sum, the oil cylinder with guide frame of the present embodiment includes cylinder body 1 and piston rod 2, one end of cylinder body 1 is provided with and enters the hydraulic fluid port 7 in cylinder body 1 for hydraulic oil, and the inner sealing of the other end is set with piston rod 2, and piston rod 2 can be along the axially reciprocating of cylinder body 1；One end compression fit of piston rod 2 has guide frame, guide frame to be oppositely arranged with hydraulic fluid port 7, so that guide frame can utilize the motion that hydraulic oil is piston rod 2 to provide the guide effect with abrasion resistant effect.This has the oil cylinder of guide frame by compression fit guide frame on piston rod 2, guide frame can be made to utilize the hydraulic oil being passed through in cylinder body 1 to provide precision the higher guide effect with good abrasion resistant effect for piston rod 2, it is little that it has deflection, guiding accuracy is high, the advantage that can bear heavy duty motion, and wearability is strong, the service life of cylinder body 1 can be improved.
Embodiment of the present utility model is given for the sake of example and description, and is not exhaustively or this utility model to be limited to disclosed form.Many modifications and variations are apparent from for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present utility model and actual application are more preferably described, and makes those of ordinary skill in the art it will be appreciated that this utility model thus design are suitable to the various embodiments with various amendments of special-purpose.
Claims (9)
1. an oil cylinder with guide frame, it is characterized in that, including cylinder body and piston rod, one end of described cylinder body is provided with and enters the hydraulic fluid port in cylinder body for hydraulic oil, the inner sealing of the other end is set with described piston rod, and described piston rod can be along the axially reciprocating of cylinder body；One end compression fit of described piston rod has guide frame, described guide frame to be oppositely arranged with hydraulic fluid port, so that described guide frame can utilize the motion that hydraulic oil is piston rod to provide the guide effect with abrasion resistant effect.
The oil cylinder with guide frame the most according to claim 1, it is characterised in that described guide frame includes piston guide bush and gland, described piston guide bush by gland compression fit in described piston rod one end relative with hydraulic fluid port.
The oil cylinder with guide frame the most according to claim 2, it is characterized in that, it is provided with in described piston guide bush for being sleeved on the through hole outside one end relative with hydraulic fluid port on described piston rod, the outer wall of described piston guide bush is provided with along its excircle the logical oil groove passed through for described hydraulic oil.
The oil cylinder with guide frame the most according to claim 3, it is characterized in that, when the quantity of described logical oil groove is multiple, multiple described logical oil grooves are uniformly distributed with the central shaft of described piston guide bush for axle center along its outer wall respectively, and multiple described logical oil groove along described piston guide bush axially through setting.
The oil cylinder with guide frame the most according to claim 3, it is characterised in that the quantity of described logical oil groove is three, three described logical oil grooves are uniformly distributed with the central shaft of described piston guide bush for axle center along its outer wall respectively；The bottom land of three described logical oil grooves and the equal squarely of sidewall, and respectively along described piston guide bush axially through setting.
The oil cylinder with guide frame the most according to claim 2, it is characterised in that the outer wall of described gland is provided with the step in being sleeved on described piston guide bush, and described gland is set in one end relative with hydraulic fluid port on described piston rod by bolt presses.
The oil cylinder with guide frame the most according to claim 6, it is characterised in that when the quantity of described bolt is multiple, multiple described bolts are arranged on described gland with the central shaft of gland uniformly for the center of circle.
The oil cylinder with guide frame the most according to claim 1, it is characterized in that, also include that described cylinder body seals and is loaded on outside one end that described piston rod is relative with hydraulic fluid port with guide frame sequentially clamping sleeve for being sealed by described hydraulic oil seal cylinder body in cylinder body.
9. according to the oil cylinder with guide frame described in any one of claim 1-8, it is characterised in that the material of described guide frame is tin bronze or spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131464.0U CN205423388U (en) | 2016-02-19 | 2016-02-19 | Hydro -cylinder with guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620131464.0U CN205423388U (en) | 2016-02-19 | 2016-02-19 | Hydro -cylinder with guide structure |
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| Publication Number | Publication Date |
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| CN205423388U true CN205423388U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620131464.0U Active CN205423388U (en) | 2016-02-19 | 2016-02-19 | Hydro -cylinder with guide structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506269A (en) * | 2018-03-07 | 2018-09-07 | 广东精铟海洋工程创新研究有限公司 | A kind of hydraulic cylinder piston design of anti-cylinder barrel damage |
| CN111608985A (en) * | 2020-06-02 | 2020-09-01 | 香河凯华齿轮有限公司 | Gear punching oil cylinder |
| CN114014199A (en) * | 2021-11-18 | 2022-02-08 | 中联装备集团北新机械有限公司 | Integrated guide oil cylinder lifting device for chain plate conveyor |
-
2016
- 2016-02-19 CN CN201620131464.0U patent/CN205423388U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506269A (en) * | 2018-03-07 | 2018-09-07 | 广东精铟海洋工程创新研究有限公司 | A kind of hydraulic cylinder piston design of anti-cylinder barrel damage |
| CN111608985A (en) * | 2020-06-02 | 2020-09-01 | 香河凯华齿轮有限公司 | Gear punching oil cylinder |
| CN114014199A (en) * | 2021-11-18 | 2022-02-08 | 中联装备集团北新机械有限公司 | Integrated guide oil cylinder lifting device for chain plate conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 101500. 25, science and technology road, Miyun Economic Development Zone, Beijing Patentee after: Harmony Group Co., Ltd. Address before: 101500 No. 25, science and technology road, Miyun Economic Development Zone, Beijing, China Patentee before: BEIJING KANGWEI HEAVY INDUSTRY MACHINERY MANUFACTURING CO., LTD. |
|
| CP03 | Change of name, title or address |