CN202176571U - Novel multistage flexible lifting oil cylinder with improved secondary cylinder barrel structure - Google Patents
Novel multistage flexible lifting oil cylinder with improved secondary cylinder barrel structure Download PDFInfo
- Publication number
- CN202176571U CN202176571U CN2011202740163U CN201120274016U CN202176571U CN 202176571 U CN202176571 U CN 202176571U CN 2011202740163 U CN2011202740163 U CN 2011202740163U CN 201120274016 U CN201120274016 U CN 201120274016U CN 202176571 U CN202176571 U CN 202176571U
- Authority
- CN
- China
- Prior art keywords
- face
- secondary cylinder
- cylinder barrel
- guide sleeve
- lug ring
- 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.)
- Expired - Lifetime
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model relates to a novel multistage flexible lifting oil cylinder with an improved secondary cylinder barrel structure, which belongs to the technical field of oil cylinders and comprises a lug ring, a guide sleeve, a secondary cylinder barrel body and a boss arranged on the end face of the lug ring. The guide sleeve is in thread connection with the secondary cylinder barrel body and positioned on the end face of the lug ring. The novel multistage flexible lifting oil cylinder with the improved secondary cylinder barrel structure has the advantages that the guide sleeve and the secondary cylinder barrel body are adopted to replace a traditional secondary cylinder barrel, thereby reducing difficulty of manufacture process and improving working efficiency. In the prior art, after a piston rod and the lug ring provided with a welding groove are welded, a welding gap may exceed the end face of the lug ring and affect positioning of the secondary cylinder barrel when the piston rod is contracted. The end face of the lug ring of the novel multistage flexible lifting oil cylinder with the improved secondary cylinder barrel structure is provided with the boss for positioning the piston rod and being welded with the lug ring on the end face, and the guide sleeve is provided with a large hole chamfer, thereby avoiding the welding gap, enabling the end face of the lug ring to be accurately positioned on the end face of the guide sleeve during contraction of the piston rod, and guaranteeing using performance of the lifting oil cylinder.
Description
Technical field
The utility model relates to a kind of multi-stage expansion elevating ram, specifically is a kind of flexible elevating ram of new multistage that the secondary cylinder barrel improves structure that has, and belongs to the oil cylinder technical field.
Background technique
At present, on the electric wheel quarry tipper secondary cylinder barrel of multistage elevating ram not only as the cylinder barrel of piston but also as the piston of two-level oil cylinder, processing more complicated, precision are difficult to guarantee; Piston rod inserts and to have the earrings bottom land of groove and weld, and the secondary cylinder barrel through regular meeting the situation that welding consumables exceeds location end face and don't difficult to find influence at ordinary times location takes place with the groove end face location of offering on the earrings, thereby influences the usability of elevating ram.
Summary of the invention
To the problem that above-mentioned existing technology exists, the utility model provides kind of the flexible elevating ram of new multistage with secondary cylinder barrel improvement structure, has the material of saving, reduces cost, and locatees characteristics such as good.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of flexible elevating ram of new multistage with secondary cylinder barrel improvement structure, comprise earrings, and also comprise guide sleeve, the secondary cylinder cylindrical shell, and be located at the boss on the earrings end face; Guide sleeve is connected with the secondary cylinder cylinder screw, and is positioned on the earrings end face.
The beneficial effect of the utility model is: guide sleeve and secondary cylinder cylindrical shell replace traditional secondary cylinder barrel, have reduced the difficulty of preparation process, increase work efficiency; In the existing technology, after piston rod and the earrings welding that has welding groove, when weld seam possibly exceed the earrings end face and influence piston rod and withdraw and the location of secondary cylinder barrel; And this device offers boss on the earrings end face; Weld on end face in order to the positioning piston bar and with earrings, guide sleeve has bigger Hole chamfering, gets out of the way weld seam; Earrings end face accurate in locating has guaranteed the usability of elevating ram when making the piston rod withdrawal on the guide sleeve end face.
Description of drawings
Fig. 1 is the utility model overall structure figure;
Fig. 2 is the utility model location end face details enlarged view;
Fig. 3 is the utility model sealing details enlarged view.
Among the figure: 1, earrings; 2, guide sleeve; 3, metal collar; 4, piston rod; 5, secondary cylinder cylindrical shell; 6, center oil pipe; 7, support ring; 8, seal ring I; 9, back-up ring I; 10, seal ring II; 11, seal ring III; 12, back-up ring II; 13, dust ring; 14, seal ring IV, a, first weld seam, b, second weld seam.
Embodiment
To combine accompanying drawing and embodiment that the utility model is described further below.
Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of flexible elevating ram of new multistage with secondary cylinder barrel improvement structure, by earrings 1, guide sleeve 2, secondary cylinder cylindrical shell 5, and the boss 101 that is located on earrings 1 end face is formed; Guide sleeve 2 is threaded with secondary cylinder cylindrical shell 5, and is positioned on earrings 1 end face.
Earrings 1 welds with first weld seam a of center oil pipe 6 and the second weld seam b of piston rod 4 respectively; Guide sleeve 2 is threaded with secondary cylinder cylindrical shell 5; And the location leans against on the end face of earrings 1; Assembling support ring 7, seal ring II 8, seal ring III 11, back-up ring II 12, dust ring 13, metal collar 3 in the guide sleeve 2 endoporus grooves realize guiding, sealing, dustproof, locating function, the outer round recessed fitting tight circle I of guide sleeve 28, back-up ring I 9; Secondary cylinder cylindrical shell 5 is realized sealing near end face groove fitting tight circle IV 14.
When hydraulic cylinder piston rod 4 withdrawals, piston rod 4 is at first withdrawn, and the location leans against on the end face of guide sleeve 2, and guide sleeve 2 end faces are stressed, and this kind structure does not have welding slag because of end face is smooth, and stressing conditions is better.
Claims (1)
1. one kind has the flexible elevating ram of new multistage that the secondary cylinder barrel improves structure, comprises earrings (1), it is characterized in that, also comprises guide sleeve (2), secondary cylinder cylindrical shell (5), and be located at the boss (101) on earrings (1) end face; Guide sleeve (2) is threaded with secondary cylinder cylindrical shell (5), and is positioned on earrings (1) end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202740163U CN202176571U (en) | 2011-07-31 | 2011-07-31 | Novel multistage flexible lifting oil cylinder with improved secondary cylinder barrel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202740163U CN202176571U (en) | 2011-07-31 | 2011-07-31 | Novel multistage flexible lifting oil cylinder with improved secondary cylinder barrel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176571U true CN202176571U (en) | 2012-03-28 |
Family
ID=45866452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202740163U Expired - Lifetime CN202176571U (en) | 2011-07-31 | 2011-07-31 | Novel multistage flexible lifting oil cylinder with improved secondary cylinder barrel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196821A (en) * | 2014-07-16 | 2014-12-10 | 徐州徐工液压件有限公司 | Lug ring structure for integrating two-way oil passing of front and back cavities with pressure measurement and exhaust functions |
-
2011
- 2011-07-31 CN CN2011202740163U patent/CN202176571U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196821A (en) * | 2014-07-16 | 2014-12-10 | 徐州徐工液压件有限公司 | Lug ring structure for integrating two-way oil passing of front and back cavities with pressure measurement and exhaust functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191114 Address after: 221000 Jiangsu city of Xuzhou province Xuzhou economic and Technological Development Zone of High Road No. 39 Patentee after: Xuzhou Xugong Mining Machinery Co., Ltd. Address before: 221000 No. 8, Mount Blue Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Jiangsu Xuzhou Construction Machinery Institute, Xuzhou Construction Machinery Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |