CN202829375U - Sequentially-telescopic multistage binding oil cylinder structure - Google Patents
Sequentially-telescopic multistage binding oil cylinder structure Download PDFInfo
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- CN202829375U CN202829375U CN 201220139493 CN201220139493U CN202829375U CN 202829375 U CN202829375 U CN 202829375U CN 201220139493 CN201220139493 CN 201220139493 CN 201220139493 U CN201220139493 U CN 201220139493U CN 202829375 U CN202829375 U CN 202829375U
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Abstract
The utility model discloses a sequentially-telescopic multistage binding oil cylinder structure. Taking a two-stage binding oil cylinder as an example, the two-stage binding oil cylinder comprises a primary cylinder (3) and secondary cylinders (14) which are fixedly connected side by side. The primary cylinder (3) comprises a cylinder barrel (7), a piston rod (8) located inside the cylinder barrel (7) and a cylinder bottom valve block (9) installed at the tail end of the cylinder barrel (7). The secondary cylinders (14) comprise cylinder barrels (7) and piston rods (8) located inside the cylinder barrels (7). The sequential telescoping of the oil cylinder is controlled through mechanical contact, and the sequentially-telescopic multistage binding oil cylinder structure is high in reliability, simple and compact in structure and capable of being widely applied to a large-tonnage straight-arm type lorry-mounted crane.
Description
Technical field
The utility model belongs to the hoisting crane field, particularly a kind of multistage binding cylinder structure that can realize arm support sequential telescopic for the straight arm type lorry-mounted crane.
Background technology
Lorry-mounted crane is a kind of new and effective lifting transportation equipment that integrates lifting, transportation, quick, flexible, efficient, the convenient and loading and unloading with it, the advantage that unites two into one of transportation is by increasing user's understanding and accept, and is widely used in the fields such as communications and transportation, civil construction, electric power.Lorry-mounted crane can be divided into straight arm type and folding-jib by version, and the straight arm type lorry-mounted crane often contains multi-stage telescopic arms in order to satisfy the requirement of larger lifting amplitude and lifting altitude, and fore and aft motion how to realize respectively saving jib is the key of design.The stretch mode of straight arm type lorry-mounted crane jib common are: synchronization telescope, sequential telescopic and sequential telescopic add three kinds of synchronization telescopes, on the more lorry-mounted crane of large-tonnage, arm joint, usually adopt sequential telescopic to add synchronization telescope, can greatly simplify the jib inner structure, improve the reliability of stretching structure.Realize that at lorry-mounted crane the method for arm support sequential telescopic mainly contains at present: control separately each oil cylinder by the multi-linkage hydraulic pressure control valve; Utilize the difference in areas of serial oil cylinders; Utilize machinery touching control sequence flexible.The utility model is to the flexible a kind of concrete application of machinery touching control sequence, has designed the sequential telescopic that a kind of multistage binding cylinder structure is realized jib.This cylinder structure is simply compact, and supporting hydraulic efficiency pressure system is simple, and cost is relatively low, can be widely used in large-tonnage straight arm type lorry-mounted crane.
Summary of the invention
For the telescopic oil cylinder of actv. straight arm type lorry-mounted crane is provided, the utility model provides a kind of multistage binding cylinder structure of sequential telescopic.
The purpose of this utility model reaches by following measures: a kind of multistage binding cylinder structure of sequential telescopic is provided, comprises the first-stage cylinder 3 that is fixed in jib 1, the secondary cylinder 14 of captive joint side by side; First-stage cylinder 3 comprises cylinder barrel 7, be positioned at the piston rod 8 of cylinder barrel 7 and be installed on the cylinder bottom valve piece 9 of cylinder barrel 7 tail ends; Secondary cylinder 14 comprises cylinder barrel 7 and is positioned at the piston rod 8 of cylinder barrel 7.
One preferred version is: the piston rod 8 of described first-stage cylinder 3 is hollow structure, and there are oil guide pipe 5 and core pipe 6 in the centre.
One preferred version is: the piston rod 8 of described secondary cylinder 14 is hollow structure, and there is oil guide pipe 5 centre.
One preferred version is: cylinder bottom valve piece 9 is comprised of the first reverse each other check valve 10 and the second check valve 11 and push rod 12; And the first check valve 10 adopts board-like connection, and the valve body that is installed in the second check valve 11 is outside, the opening and closing of push rod 12 controls the first check valve 10.
One preferred version is: an end of core pipe 6 has been installed hexagonal nut 4.
One preferred version is: the end at core pipe 6 close the second check valves 11 has designed a logical oily aperture.
One preferred version is: the outer support 13 that connects of the cylinder barrel of secondary cylinder 14, and support 13 front ends are an eccentric disc, the area of disk is greater than the area of push rod 12.
Beneficial effect: the utility model is simple and compact for structure, can save the space of jib inside, and is easy to arrange, hydraulic efficiency pressure system is simple, and reliability is high, adopts machinery touching control sequence flexible, the keying of valve is not affected by load pressure, can be widely used in the large-tonnage lorry-mounted crane.
Description of drawings
Fig. 1 structural scheme of mechanism of the present utility model.
Fig. 2 secondary binding of the present utility model cylinder structure schematic diagram.
The first-stage cylinder 3 of Fig. 3 secondary binding of the present utility model oil cylinder begins to stretch out schematic diagram.
The first-stage cylinder 3 of Fig. 4 secondary binding of the present utility model oil cylinder is stretched out schematic diagram fully.
The secondary cylinder 14 of Fig. 5 secondary binding of the present utility model oil cylinder stretches out schematic diagram.
The secondary cylinder 14 retraction schematic diagrams of Fig. 6 secondary binding of the present utility model oil cylinder.
The first-stage cylinder 3 of Fig. 7 secondary binding of the present utility model oil cylinder begins the schematic diagram of retracting.
The first-stage cylinder 3 of Fig. 8 secondary of the present utility model binding oil cylinder schematic diagram of retracting fully.
Diagram of circuit when Fig. 9 secondary binding of the present utility model oil cylinder sequentially stretches out.
Diagram of circuit when Figure 10 secondary binding of the present utility model oil cylinder is sequentially retracted.
The specific embodiment
Below in conjunction with accompanying drawing 1-10 and embodiment the utility model is elaborated.
The utility model provides a kind of multistage binding cylinder structure of sequential telescopic, and with reference to Fig. 1, a kind of three grades of binding cylinder structures of sequential telescopic are installed on the crane arm support 1.The utility model provides a kind of multistage binding cylinder structure of sequential telescopic, comprises the first-stage cylinder 3 that is fixed in jib 1, the secondary cylinder 14 of captive joint side by side; First-stage cylinder 3 comprises cylinder barrel 7, be positioned at the piston rod 8 of cylinder barrel 7 and be installed on the cylinder bottom valve piece 9 of cylinder barrel 7 tail ends; Secondary cylinder 14 comprises cylinder barrel 7 and is positioned at the piston rod 8 of cylinder barrel 7.
One preferred version is: the piston rod 8 of described first-stage cylinder 3 is hollow structure, and there are oil guide pipe 5 and core pipe 6 in the centre.
One preferred version is: the piston rod 8 of described secondary cylinder 14 is hollow structure, and there is oil guide pipe 5 centre.
One preferred version is: cylinder bottom valve piece 9 is comprised of the first reverse each other check valve 10 and the second check valve 11 and push rod 12; And the first check valve 10 adopts board-like connection, and the valve body that is installed in the second check valve 11 is outside, the opening and closing of push rod 12 controls the first check valve 10.
One preferred version is: an end of core pipe 6 has been installed hexagonal nut 4.
One preferred version is: the end at core pipe 6 close the second check valves 11 has designed a logical oily aperture.
One preferred version is: the outer support 13 that connects of the cylinder barrel of secondary cylinder 14, and support 13 front ends are an eccentric disc, the area of disk is greater than the area of push rod 12.
The secondary binding cylinder structure of sequential telescopic comprises that first-stage cylinder 3 forms with the secondary cylinder 14 of captiveing joint side by side and oppositely stretching, and sees Fig. 2.The below introduces workflow with the secondary binding cylinder structure of sequential telescopic.
Stretch out process; With reference to figure 3 to Fig. 5, the electromagnetic valve action, cylinder barrel 7 inside that high-voltage oil liquid enters first-stage cylinder 3 are cavity volume A, oil guide pipe 5 and core pipe 6, the first check valve 10 through piston rod 8 inside enters cavity volume C simultaneously, the cylinder barrel that promotes first-stage cylinder 3 stretches out, and drives together motion of core pipe 6 when cylinder barrel stretches out.When the cylinder barrel of first-stage cylinder 3 reaches end of travel, the hexagonal nut 4 that one end of core pipe 6 connects contacts with piston, 6 stop motions of core pipe, cylinder barrel continues motion, until the second check valve 11 is opened, fluid is cavity volume D through the cylinder barrel inside that the second check valve 11 enters secondary cylinder 14, promotes secondary cylinder 14 and stretches out, until end of travel.Idiographic flow is seen Fig. 9.
The retraction process: see Fig. 6 to Fig. 8, the electromagnetic valve action, fluid enters among the cavity volume E of secondary cylinder 14 through balance cock, sees Fig. 6, promotes secondary cylinder 14 and retracts, and the fluid among the cavity volume D refluxes through the second check valve 11 simultaneously.After secondary cylinder 14 was retracted fully, the push rod 12 that the eccentric disc on the support 13 promotes first-stage cylinder travelled forward, and opens the first check valve 10, and high-voltage oil liquid promotes first-stage cylinder 3 to begin to retract.Fluid among the cavity volume C is through the first check valve 10, passage E, cavity volume A oil return, and first-stage cylinder 3 is retracted fully.Idiographic flow is seen Figure 10.
In addition, the secondary of sequential telescopic of the present utility model binding cylinder structure can extend to multistage binding cylinder structure, only needs to increase the oil cylinder with same structure and get final product between first-stage cylinder 3 and secondary cylinder 14.
Above content is the further description of the present invention being done in conjunction with embodiment, can not assert that the implementation of invention only limits to these explanations.Concerning the general technical staff of the technical field of the invention, under the prerequisite that does not break away from design of the present invention, can also make simple deduction and replacement, all should be considered as protection scope of the present invention.
Claims (7)
1. the multistage binding cylinder structure of a sequential telescopic is characterized in that, comprises the first-stage cylinder (3) that is fixed in jib (1), the secondary cylinder of captive joint (14) side by side; First-stage cylinder (3) comprises cylinder barrel (7), be positioned at the piston rod (8) of cylinder barrel (7) and be installed on the cylinder bottom valve piece (9) of cylinder barrel (7) tail end; Secondary cylinder (14) comprises cylinder barrel (7) and is positioned at the piston rod (8) of cylinder barrel (7).
2. according to the multistage binding cylinder structure of claim 1 described a kind of sequential telescopic, it is characterized in that, the piston rod (8) of described first-stage cylinder (3) is hollow structure, and there are oil guide pipe (5) and core pipe (6) in the centre.
3. according to the multistage binding cylinder structure of claim 1 described a kind of sequential telescopic, it is characterized in that, the piston rod (8) of described secondary cylinder (14) is hollow structure, and there is oil guide pipe (5) centre.
4. according to the multistage binding cylinder structure of claim 1 described a kind of sequential telescopic, it is characterized in that, cylinder bottom valve piece (9) is comprised of reverse each other the first check valve (10) and the second check valve (11) and push rod (12); And the first check valve (10) adopts board-like connection, and the valve body that is installed in the second check valve (11) is outside, the opening and closing of push rod (12) control the first check valve (10).
5. according to the multistage binding cylinder structure of claim 2 described a kind of sequential telescopics, it is characterized in that, an end of core pipe (6) has been installed hexagonal nut (4).
6. according to the multistage binding cylinder structure of claim 2 or 5 described a kind of sequential telescopics, it is characterized in that, near an end of the second check valve (11) a logical oily aperture is set at core pipe (6).
7. according to the multistage binding cylinder structure of claim 1 or 3 described a kind of sequential telescopics, it is characterized in that, the outer support (13) that connects of the cylinder barrel of secondary cylinder (14), support (13) front end is an eccentric disc, the area of disk is greater than the area of push rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220139493 CN202829375U (en) | 2012-04-05 | 2012-04-05 | Sequentially-telescopic multistage binding oil cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220139493 CN202829375U (en) | 2012-04-05 | 2012-04-05 | Sequentially-telescopic multistage binding oil cylinder structure |
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| CN202829375U true CN202829375U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220139493 Expired - Fee Related CN202829375U (en) | 2012-04-05 | 2012-04-05 | Sequentially-telescopic multistage binding oil cylinder structure |
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| CN (1) | CN202829375U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407433A (en) * | 2013-07-23 | 2013-11-27 | 北汽福田汽车股份有限公司 | Mounting structure for multi-stage retractable legs and engineering machinery |
| CN103899585A (en) * | 2014-03-03 | 2014-07-02 | 徐州徐工随车起重机有限公司 | Hydraulic control system with two oil cylinders performing orderly telescopic motion, suspension arm mechanism and crane |
| CN105864134A (en) * | 2016-04-22 | 2016-08-17 | 三帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic system and crane |
| CN105952701A (en) * | 2016-05-20 | 2016-09-21 | 黄媛 | Multi-hydraulic-cylinder driving mechanism |
| CN106593993A (en) * | 2016-12-26 | 2017-04-26 | 山河智能装备股份有限公司 | Double-cylinder sequential telescopic oil cylinder |
| CN108457924A (en) * | 2017-12-12 | 2018-08-28 | 湖南百特随车起重机有限公司 | Extension and contraction control valve, Multi-cylinder pushing handle telescopic control mechanism and Multi-cylinder driving device in proper order |
| CN109973465A (en) * | 2019-04-26 | 2019-07-05 | 江苏宏昌天马物流装备有限公司 | Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm |
| CN109969959A (en) * | 2019-04-26 | 2019-07-05 | 江苏宏昌天马物流装备有限公司 | Three cylinder assemblies of hoisting arm expansion and three-level telescopic arm |
| CN117605733A (en) * | 2024-01-22 | 2024-02-27 | 张家口长城液压油缸有限公司 | Multistage telescopic erection hydraulic cylinder with core pipe structure |
-
2012
- 2012-04-05 CN CN 201220139493 patent/CN202829375U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103407433A (en) * | 2013-07-23 | 2013-11-27 | 北汽福田汽车股份有限公司 | Mounting structure for multi-stage retractable legs and engineering machinery |
| CN103407433B (en) * | 2013-07-23 | 2015-08-12 | 北汽福田汽车股份有限公司 | The mounting structure of multi-stage expansion supporting leg and construction machinery and equipment |
| CN103899585A (en) * | 2014-03-03 | 2014-07-02 | 徐州徐工随车起重机有限公司 | Hydraulic control system with two oil cylinders performing orderly telescopic motion, suspension arm mechanism and crane |
| CN103899585B (en) * | 2014-03-03 | 2016-08-24 | 徐州徐工随车起重机有限公司 | The hydraulic control system of a kind of pair of oil cylinder sequential telescopic, suspension arm mechanism and crane |
| CN105864134A (en) * | 2016-04-22 | 2016-08-17 | 三帕尔菲格特种车辆装备有限公司 | Multi-oil-cylinder sequential telescopic system and crane |
| CN105952701A (en) * | 2016-05-20 | 2016-09-21 | 黄媛 | Multi-hydraulic-cylinder driving mechanism |
| CN106593993A (en) * | 2016-12-26 | 2017-04-26 | 山河智能装备股份有限公司 | Double-cylinder sequential telescopic oil cylinder |
| CN108457924A (en) * | 2017-12-12 | 2018-08-28 | 湖南百特随车起重机有限公司 | Extension and contraction control valve, Multi-cylinder pushing handle telescopic control mechanism and Multi-cylinder driving device in proper order |
| CN109973465A (en) * | 2019-04-26 | 2019-07-05 | 江苏宏昌天马物流装备有限公司 | Double oil cylinder consecutive order telescopic devices and two-stage telescopic arm |
| CN109969959A (en) * | 2019-04-26 | 2019-07-05 | 江苏宏昌天马物流装备有限公司 | Three cylinder assemblies of hoisting arm expansion and three-level telescopic arm |
| CN117605733A (en) * | 2024-01-22 | 2024-02-27 | 张家口长城液压油缸有限公司 | Multistage telescopic erection hydraulic cylinder with core pipe structure |
| CN117605733B (en) * | 2024-01-22 | 2024-03-19 | 张家口长城液压油缸有限公司 | Multistage telescopic erection hydraulic cylinder with core pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DALIAN YILIYA ENGINEERING MACHINERY CO., LTD. Effective date: 20141115 Owner name: CHANGZHOU ZHONGMAO MACHINERY CO., LTD. Free format text: FORMER OWNER: DALIAN YILIYA ENGINEERING MACHINERY CO., LTD. Effective date: 20141115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 116085 DALIAN, LIAONING PROVINCE TO: 213164 CHANGZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141115 Address after: 213164 Jiangsu province Xinbei District of Changzhou City Luo Xi Zhen Sheng Da Lu No. 16 Patentee after: Changzhou Zhongmao Machinery Co., Ltd. Patentee after: Dalian yiliya Construction Machinery Co., Ltd. Address before: 116085, 10, Hui Yin Garden, 1 hi tech Zone, Liaoning, Dalian Patentee before: Dalian yiliya Construction Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150405 |
|
| EXPY | Termination of patent right or utility model |