CN203248709U - Conical face matching structure for oil cylinder pressing cover and guide sleeve - Google Patents

Conical face matching structure for oil cylinder pressing cover and guide sleeve Download PDF

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Publication number
CN203248709U
CN203248709U CN 201320182849 CN201320182849U CN203248709U CN 203248709 U CN203248709 U CN 203248709U CN 201320182849 CN201320182849 CN 201320182849 CN 201320182849 U CN201320182849 U CN 201320182849U CN 203248709 U CN203248709 U CN 203248709U
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CN
China
Prior art keywords
guide sleeve
gland
conical
pressing cover
matching
Prior art date
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Active
Application number
CN 201320182849
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Chinese (zh)
Inventor
刘庆教
范华志
李小明
尹立松
闫国庆
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.)
Xuzhou XCMG Hydraulics Co Ltd
Original Assignee
Xuzhou XCMG Hydraulics Co Ltd
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Publication date
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Priority to CN 201320182849 priority Critical patent/CN203248709U/en
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Publication of CN203248709U publication Critical patent/CN203248709U/en
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Abstract

The utility model belongs to the field of hydraulic cylinders, and discloses a conical face matching structure for an oil cylinder pressing cover and a guide sleeve. The conical face matching structure comprises a guide sleeve, the pressing cover and a cylinder drum. The pressing cover is in inner thread type connection with the cylinder drum, a fastening screw is added on the pressing cover, and the guide sleeve is connected with the pressing cover through the conical face matching structure in interference fit. The conical face matching structure for the oil cylinder pressing cover and the guide sleeve has the advantages of breaking through a plane matching structure of the guide sleeve and the pressing cover, certain pretension force is borne between matched threads through the conical face matching structure, meanwhile pressure between the threads can be varied along with working pressure, the anti-loosening effect of the pressing cover is improved, and the guide sleeve, the pressing cover and the like are matched more tightly.

Description

Oil cylinder gland and guide sleeve tapered face fit structure
Technical field
The utility model relates to a kind of oil cylinder gland and guide sleeve tapered face fit structure, belongs to the oil hydraulic cylinder part field, is mainly used in engineering machinery hydraulic cylinder, plays guiding and sealing.
Background technique
At present, domestic Hydraulic Industry has also developed decades, and the kind of oil hydraulic cylinder component and principal mode finalize the design almost, and has also possessed quite ripe processing technology simultaneously.For the fit form of gland and guide sleeve, general common be the single plane cooperating structure, it is that ladder surface cooperates that minority is also arranged, its locking form mainly is Cock screw, it is curved to rush, prevent the form such as loose spot.
Summary of the invention
The utility model provides a kind of oil cylinder gland and guide sleeve tapered face fit structure, mainly is the anti-loosing effect of having strengthened gland, and it is tightr that guide sleeve, gland etc. are cooperated.
The utility model is realized with following technological scheme: a kind of oil cylinder gland and guide sleeve tapered face fit structure, comprise guide sleeve, gland and cylinder barrel, and gland is connected that I.S.S connects with cylinder barrel, is added with Cock screw on the gland; Described guide sleeve adopts tapered face fit structure to be connected with gland.
Described tapered face fit structure is that guide sleeve and junction plane gland are the conical surface, and gland and junction plane guide sleeve are the inner conical surfaces with the cone match of guide sleeve.
The described cooperation conical surface adopts interference fit.
The beneficial effects of the utility model are: broken through the plane cooperating structure of original guide sleeve and gland, tapered face fit structure has improved the anti-loosing effect of gland, and it is tightr that guide sleeve, gland etc. are cooperated.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, guide sleeve, 2, cylinder barrel, 3, sealing, 4, gland, 5, Cock screw, 6, locating shoulder.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, oil cylinder gland and guide sleeve tapered face fit structure comprise guide sleeve 1, gland 4 and cylinder barrel 2, and gland 4 is connected with cylinder barrel for I.S.S connects, and is added with Cock screw 5 on the gland; Guide sleeve 1 adopts the cone match location with gland 4.One end of guide sleeve 1 is useful on the locating shoulder 6 of positioning and guiding cover, and tapered face fit structure is that guide sleeve 1 and junction plane gland 4 are the conical surface, and the junction plane with guide sleeve 1 of gland 4 is the inner conical surfaces with the cone match of guide sleeve 1.Cooperate the conical surface to adopt interference fit; With the cooperation conical surface of gland 4 static seal 3 is housed at guide sleeve 1.
During installation, make to form when mounted certain pretightening force between the two.Because the existence of this pretightening force makes between guide sleeve 1 and the cylinder barrel 2 and produces lateral extrusion, thereby strengthen the maximum static friction force between the matching thread, play better locking effect.Simultaneously, even guide sleeve 1 is subject to the oil pressure effect, gland 4 is when suffered axial force strengthens, radial force also can increase, and stiction also can increase between final screw thread, namely along with the increase of working pressure, the screw thread frictional force that gland 4 and cylinder barrel are 2 is also larger, thereby plays good anti-loosing effect.By Cock screw 5, play dual locking effect in addition.

Claims (4)

1. an oil cylinder gland and guide sleeve tapered face fit structure comprise guide sleeve (1), gland (4) and cylinder barrel 2, and gland (4) is connected 2 with cylinder barrel) for I.S.S connects, be added with Cock screw (5) on the gland; It is characterized in that: described guide sleeve (1) adopts tapered face fit structure to be connected with gland (4).
2. oil cylinder gland according to claim 1 and guide sleeve tapered face fit structure, it is characterized in that: described tapered face fit structure is guide sleeve (1) with the junction plane of gland (4) is the conical surface, and the junction plane of gland (4) and guide sleeve (1) is the inner conical surface with the cone match of guide sleeve (1).
3. oil cylinder gland according to claim 1 and guide sleeve tapered face fit structure is characterized in that: described cooperation conical surface employing interference fit.
4. oil cylinder gland according to claim 1 and guide sleeve tapered face fit structure is characterized in that: with the cooperation conical surface of gland (4) static seal (3) is housed at guide sleeve (1).
CN 201320182849 2013-04-11 2013-04-11 Conical face matching structure for oil cylinder pressing cover and guide sleeve Active CN203248709U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320182849 CN203248709U (en) 2013-04-11 2013-04-11 Conical face matching structure for oil cylinder pressing cover and guide sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320182849 CN203248709U (en) 2013-04-11 2013-04-11 Conical face matching structure for oil cylinder pressing cover and guide sleeve

Publications (1)

Publication Number Publication Date
CN203248709U true CN203248709U (en) 2013-10-23

Family

ID=49375148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320182849 Active CN203248709U (en) 2013-04-11 2013-04-11 Conical face matching structure for oil cylinder pressing cover and guide sleeve

Country Status (1)

Country Link
CN (1) CN203248709U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104482199A (en) * 2014-11-03 2015-04-01 无锡市百顺机械厂 Oil cylinder cover anti-loose structure in oil cylinder
CN105546116A (en) * 2016-01-25 2016-05-04 辽宁广惠智能装备有限公司 Self-centering ultrahigh-pressure motive seal kit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104482199A (en) * 2014-11-03 2015-04-01 无锡市百顺机械厂 Oil cylinder cover anti-loose structure in oil cylinder
CN105546116A (en) * 2016-01-25 2016-05-04 辽宁广惠智能装备有限公司 Self-centering ultrahigh-pressure motive seal kit

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