CN104100596A - Combined-type self-locking-ratchet hydraulic oil cylinder - Google Patents
Combined-type self-locking-ratchet hydraulic oil cylinder Download PDFInfo
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- CN104100596A CN104100596A CN201410316631.4A CN201410316631A CN104100596A CN 104100596 A CN104100596 A CN 104100596A CN 201410316631 A CN201410316631 A CN 201410316631A CN 104100596 A CN104100596 A CN 104100596A
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Abstract
The invention relates to the technical field of hydraulic power equipment, in particular to a combined-type self-locking-ratchet hydraulic oil cylinder, and aims to solve the technical problem that an existing oil cylinder is poor in locking reliability and low in output force. The combined-type self-locking-ratchet hydraulic oil cylinder comprises a main cylinder barrel, an auxiliary cylinder barrel, a main piston and an auxiliary piston, the main cylinder barrel and the auxiliary cylinder barrel are in left-right abutting connection, the main piston and the auxiliary piston are arranged in the main cylinder barrel and the auxiliary cylinder barrel respectively, inner cavities of the main cylinder barrel and the auxiliary cylinder barrel are separated by a left cylinder cover of the main cylinder barrel in a left-right manner, the right end of the main piston extends outside the main cylinder barrel, ratchet strips are formed on the periphery of the right portion of the main piston, ratchets matched with the ratchet strips are arranged on the main cylinder barrel in a pivoted manner, and the auxiliary piston is coaxial with the main piston and closely abutted against the left end of the same. The combined-type self-locking-ratchet hydraulic oil cylinder is reliable in locking and high in output force.
Description
Technical field
The present invention relates to hydraulic power unit technology, particularly relate to a kind of technology of combined type ratchet self-locking hydraulic oil cylinder.
Background technique
Hydraulic jack is the equipment by hydraulic driving outputting power, mainly formed by cylinder barrel and piston, and the inner chamber integrated sealing of cylinder barrel, piston is arranged in inner cavity of cylinder with sliding matching mode, and inner cavity of cylinder is separated into two active chambers by piston.When hydraulic jack work, one of them active chamber oil-feed, another work oil return, can promote piston and slide, thus outputting power.
When hydraulic jack work, in order to ensure the work safety of hydraulic jack, all need on the oil inlet and oil return hydraulic pipe line of hydraulic jack, configure hydrovalve locks hydraulic jack conventionally, to ensure that hydraulic jack can be because of system failure unstability.But the mode that this employing hydrovalve locks hydraulic jack is higher to the required precision of hydrovalve, and exists in the spool of hydrovalve and relate to, cannot realize the absolute locking to hydraulic jack, exist the defect of locking poor reliability.
In addition, the ouput force of existing hydraulic jack is relatively low, under the operating mode of ouput force being had relatively high expectations at some (such as civil engineering foundation pit construction), often need multiple hydraulic jacks outputting power simultaneously that cooperatively interacts, therefore the ouput force of existing hydraulic jack need to improve.
Summary of the invention
For the defect existing in above-mentioned prior art, it is high that technical problem to be solved by this invention is to provide a kind of locking reliability, and the high combined type ratchet self-locking hydraulic oil cylinder of ouput force.
In order to solve the problems of the technologies described above, a kind of combined type ratchet self-locking hydraulic oil cylinder provided by the present invention, comprises cylinder barrel and piston, it is characterized in that: described cylinder barrel has two, and one of them cylinder barrel is master cylinder cylinder, and another cylinder barrel is secondary cylinder barrel;
The two ends, left and right of described master cylinder cylinder are respectively sealed by a cylinder cap, the left end sealing of described secondary cylinder barrel, and the right-hand member of secondary cylinder barrel docks with the left end of master cylinder cylinder, and the inner chamber of the inner chamber of secondary cylinder barrel and master cylinder cylinder is separated by the left cylinder cap left and right of master cylinder cylinder;
Described piston has two, and one of them piston is main piston, and another piston is sub-piston;
Described main piston is arranged in the inner chamber of master cylinder cylinder with sliding matching mode, and the inner chamber of master cylinder cylinder is separated into each separate sub-chamber around, and left sub-chamber is wherein rodless cavity, and right sub-chamber is wherein rod chamber;
On the barrel of described master cylinder cylinder, offer two actuator ports, one of them actuator port is communicated with rodless cavity, and another actuator port is communicated with rod chamber;
Described main piston is cylinder-piston, the right-hand member of main piston extends master cylinder cylinder outside through the right cylinder cap of master cylinder cylinder, the connecting part of main piston and the right cylinder cap of master cylinder cylinder is slidably matched and hermetic seal, and the side face of main piston right part is formed with at least one lineal shape ratchet bar that is parallel to main piston slip axis;
On described master cylinder cylinder, be pivoted with at least one ratchet, each ratchet can be switched to each ratchet bar of main piston side face and engage respectively, and can be switched to each ratchet bar and depart from and engage;
Described sub-piston is arranged on sliding matching mode in the inner chamber of secondary cylinder barrel, and coaxial with main piston, the right-hand member of sub-piston passes the left cylinder cap of master cylinder cylinder and is tight against main piston left end, the connecting part of sub-piston and the left cylinder cap of master cylinder cylinder is slidably matched and hermetic seal, the inner chamber of secondary cylinder barrel is separated into each separate sub-chamber around by sub-piston, left sub-chamber is wherein communicated with the rodless cavity of master cylinder cylinder, and right sub-chamber is wherein communicated with the rod chamber of master cylinder cylinder.
Combined type ratchet self-locking hydraulic oil cylinder provided by the invention, utilize coordinating of ratchet and main piston side face ratchet bar, main piston can be locked reliably, utilize sub-piston to produce a compound thrust to main piston, the ouput force of main piston is further promoted, in the situation that oil cylinder working-pressure is constant, existing single ram cylinder that the ouput force of main piston is compared same specification can increase by 60% left and right, has the advantages that locking reliability is high and ouput force is high.
Brief description of the drawings
Fig. 1 is that the master of the combined type ratchet self-locking hydraulic oil cylinder of the embodiment of the present invention looks cut away view.
Embodiment
Below in conjunction with brief description of the drawings, embodiments of the invention are described in further detail, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof, all should list protection scope of the present invention in.
As shown in Figure 1, a kind of combined type ratchet self-locking hydraulic oil cylinder that the embodiment of the present invention provides, comprises cylinder barrel and piston, it is characterized in that: described cylinder barrel has two, and one of them cylinder barrel is master cylinder cylinder 1, and another cylinder barrel is secondary cylinder barrel 2;
The two ends, left and right of described master cylinder cylinder 1 are respectively sealed by a cylinder cap 5, the left end sealing of described secondary cylinder barrel 2, and the right-hand member of secondary cylinder barrel 2 docks with the left end of master cylinder cylinder 1, and the inner chamber of the inner chamber of secondary cylinder barrel 2 and master cylinder cylinder 1 is separated by left cylinder cap 5 left and right of master cylinder cylinder;
Described piston has two, and one of them piston is main piston 3, and another piston is sub-piston 4;
Described main piston 3 is arranged in the inner chamber of master cylinder cylinder 1 with sliding matching mode, and the inner chamber of master cylinder cylinder 1 is separated into each separate sub-chamber around, and left sub-chamber is wherein rodless cavity 11, and right sub-chamber is wherein rod chamber 12;
On the barrel of described master cylinder cylinder 1, offer two actuator ports, one of them actuator port is communicated with rodless cavity 11, and another actuator port is communicated with rod chamber 12;
Described main piston 3 is cylinder-piston, the right-hand member of main piston 3 extends master cylinder cylinder outside through the right cylinder cap 5 of master cylinder cylinder, main piston 3 is slidably matched and hermetic seal with the connecting part of the right cylinder cap 5 of master cylinder cylinder, and the side face of main piston 3 right parts is formed with at least one lineal shape ratchet bar 6 that is parallel to main piston slip axis;
On described master cylinder cylinder 1, be pivoted with at least one ratchet 7, each ratchet 7 can be switched to each ratchet bar 6 of main piston side face and engage respectively, and can be switched to each ratchet bar 6 and depart from and engage;
Described sub-piston 4 is arranged on sliding matching mode in the inner chamber of secondary cylinder barrel 2, and coaxial with main piston 3, the right-hand member of sub-piston 4 passes the left cylinder cap 5 of master cylinder cylinder and is tight against main piston 3 left ends, sub-piston 4 is slidably matched and hermetic seal with the connecting part of the left cylinder cap 5 of master cylinder cylinder, the inner chamber of secondary cylinder barrel 2 is separated into each separate sub-chamber around by sub-piston 4, left sub-chamber is wherein communicated with the rodless cavity 11 of master cylinder cylinder, and right sub-chamber is wherein communicated with the rod chamber 12 of master cylinder cylinder.
The working principle of the embodiment of the present invention is as follows:
Utilize external driver part 9(tradition oil cylinder) order about each ratchet and be switched to each ratchet bar and depart from and engage, the actuator port of rod chamber side is connected to oil returning tube, pressure oil is injected to rodless cavity by the actuator port of rodless cavity side, thereby promoting main piston slides to the right, main piston is stretched out to the right, meanwhile, pressure oil in rodless cavity enters the left sub-chamber of secondary cylinder barrel, thereby promoting sub-piston slides to the right, make sub-piston ejection main piston to the right, main piston is produced to a compound thrust, the ouput force of main piston is further promoted, in the situation that oil cylinder working-pressure is constant, existing single ram cylinder that the ouput force of main piston is compared same specification can increase by 60% left and right, after main piston slides and puts in place, utilizing external driver part to order about each ratchet is switched to each ratchet bar of main piston side face and engages respectively, can be by locking firm main piston, utilizing once again external driver part to order about each ratchet is switched to after each ratchet bar departs from and engages, main piston can be unlocked, after main piston unlocks, the actuator port of rodless cavity side is connected to oil returning tube, pressure oil is injected to rod chamber by the actuator port of rod chamber side, pressure oil in rod chamber also injects the right sub-chamber of secondary cylinder barrel in the lump, thereby promoting main piston and sub-piston slides left in the lump, can make main piston and sub-piston retract left.
Claims (1)
1. a combined type ratchet self-locking hydraulic oil cylinder, comprises cylinder barrel and piston, it is characterized in that: described cylinder barrel has two, and one of them cylinder barrel is master cylinder cylinder, and another cylinder barrel is secondary cylinder barrel;
The two ends, left and right of described master cylinder cylinder are respectively sealed by a cylinder cap, the left end sealing of described secondary cylinder barrel, and the right-hand member of secondary cylinder barrel docks with the left end of master cylinder cylinder, and the inner chamber of the inner chamber of secondary cylinder barrel and master cylinder cylinder is separated by the left cylinder cap left and right of master cylinder cylinder;
Described piston has two, and one of them piston is main piston, and another piston is sub-piston;
Described main piston is arranged in the inner chamber of master cylinder cylinder with sliding matching mode, and the inner chamber of master cylinder cylinder is separated into each separate sub-chamber around, and left sub-chamber is wherein rodless cavity, and right sub-chamber is wherein rod chamber;
On the barrel of described master cylinder cylinder, offer two actuator ports, one of them actuator port is communicated with rodless cavity, and another actuator port is communicated with rod chamber;
Described main piston is cylinder-piston, the right-hand member of main piston extends master cylinder cylinder outside through the right cylinder cap of master cylinder cylinder, the connecting part of main piston and the right cylinder cap of master cylinder cylinder is slidably matched and hermetic seal, and the side face of main piston right part is formed with at least one lineal shape ratchet bar that is parallel to main piston slip axis;
On described master cylinder cylinder, be pivoted with at least one ratchet, each ratchet can be switched to each ratchet bar of main piston side face and engage respectively, and can be switched to each ratchet bar and depart from and engage;
Described sub-piston is arranged on sliding matching mode in the inner chamber of secondary cylinder barrel, and coaxial with main piston, the right-hand member of sub-piston passes the left cylinder cap of master cylinder cylinder and is tight against main piston left end, the connecting part of sub-piston and the left cylinder cap of master cylinder cylinder is slidably matched and hermetic seal, the inner chamber of secondary cylinder barrel is separated into each separate sub-chamber around by sub-piston, left sub-chamber is wherein communicated with the rodless cavity of master cylinder cylinder, and right sub-chamber is wherein communicated with the rod chamber of master cylinder cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316631.4A CN104100596A (en) | 2014-07-06 | 2014-07-06 | Combined-type self-locking-ratchet hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316631.4A CN104100596A (en) | 2014-07-06 | 2014-07-06 | Combined-type self-locking-ratchet hydraulic oil cylinder |
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| Publication Number | Publication Date |
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| CN104100596A true CN104100596A (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410316631.4A Pending CN104100596A (en) | 2014-07-06 | 2014-07-06 | Combined-type self-locking-ratchet hydraulic oil cylinder |
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| Country | Link |
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| CN (1) | CN104100596A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373420A (en) * | 2014-11-28 | 2015-02-25 | 山东泰丰液压股份有限公司 | Compensating oil cylinder |
| CN106438574A (en) * | 2016-07-11 | 2017-02-22 | 中车长江车辆有限公司 | Mechanical self-locking type piston cylinder and connection rod mechanism control system |
| CN110228763A (en) * | 2019-05-23 | 2019-09-13 | 苏州市迅特液压升降机械有限公司 | A kind of falling proof device and equipment for hydraulic lifting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2047216U (en) * | 1989-01-31 | 1989-11-08 | 吴明坚 | Energy-saving press of single pump system |
| CN2851676Y (en) * | 2005-12-09 | 2006-12-27 | 徐州重型机械有限公司 | Hydraulic cylinder with double work travels |
| CN101725586A (en) * | 2009-11-17 | 2010-06-09 | 姚国志 | Pressure and speed variable double-cylinder serial hydrocylinder |
| CN103803445A (en) * | 2012-11-15 | 2014-05-21 | 烟台史密得机电设备制造有限公司 | Vehicle metal plate correcting platform |
| CN204082754U (en) * | 2014-07-06 | 2015-01-07 | 上海宏信设备工程有限公司 | Combined type ratchet self-locking hydraulic oil cylinder |
-
2014
- 2014-07-06 CN CN201410316631.4A patent/CN104100596A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047216U (en) * | 1989-01-31 | 1989-11-08 | 吴明坚 | Energy-saving press of single pump system |
| CN2851676Y (en) * | 2005-12-09 | 2006-12-27 | 徐州重型机械有限公司 | Hydraulic cylinder with double work travels |
| CN101725586A (en) * | 2009-11-17 | 2010-06-09 | 姚国志 | Pressure and speed variable double-cylinder serial hydrocylinder |
| CN103803445A (en) * | 2012-11-15 | 2014-05-21 | 烟台史密得机电设备制造有限公司 | Vehicle metal plate correcting platform |
| CN204082754U (en) * | 2014-07-06 | 2015-01-07 | 上海宏信设备工程有限公司 | Combined type ratchet self-locking hydraulic oil cylinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373420A (en) * | 2014-11-28 | 2015-02-25 | 山东泰丰液压股份有限公司 | Compensating oil cylinder |
| CN106438574A (en) * | 2016-07-11 | 2017-02-22 | 中车长江车辆有限公司 | Mechanical self-locking type piston cylinder and connection rod mechanism control system |
| CN106438574B (en) * | 2016-07-11 | 2018-06-29 | 中车长江车辆有限公司 | Mechanical self-latching type piston cylinder and link mechanism control system |
| CN110228763A (en) * | 2019-05-23 | 2019-09-13 | 苏州市迅特液压升降机械有限公司 | A kind of falling proof device and equipment for hydraulic lifting |
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Application publication date: 20141015 |