CN103423237B - Hydraulic jack stroke test device - Google Patents
Hydraulic jack stroke test device Download PDFInfo
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- CN103423237B CN103423237B CN201210167974.XA CN201210167974A CN103423237B CN 103423237 B CN103423237 B CN 103423237B CN 201210167974 A CN201210167974 A CN 201210167974A CN 103423237 B CN103423237 B CN 103423237B
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- hydraulic jack
- fixed
- base
- test device
- stroke test
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Abstract
The invention provides a kind of hydraulic jack stroke test device, comprise linear displacement transducer, the side that sensor is worn in straight-line displacement is provided with the supporting frame of support hydraulic pressure oil cylinder, the pressure mechanism compressing hydraulic jack cylinder body is provided with above supporting frame, the Mobile base be fixedly linked with described hydraulic jack movable end is respectively equipped with at the two ends of supporting frame, the fixed base be connected with described hydraulic jack fixed end, described Mobile base to be placed on a slide guide and can to slide along slide guide, described slide guide and described linear displacement transducer are parallel to each other, described Mobile base, fixed base is equipped with the displacement detecting head with linear displacement transducer effect.Hydraulic jack stroke test device of the present invention, its structure is simple, and control accuracy is high.
Description
Technical field
The present invention relates to a kind of device for detecting distance of travel, particularly relate to a kind of hydraulic jack stroke test device.
Background technique
Along with the development of modern industry, in the whole world, many industries obtain very big application and development to hydraulic transmission technology, the loader of such as engineering machinery, bulldozer and road roller etc.; The fork truck of handling machinery, belt comveyer and mobile crane etc.; The pile driver of building machinery, hydraulic jack machine etc. pacifically; Farm machinery, automotive industry, mining machinery, the every profession and trades such as metallurgical machinery.Hydraulic transmission equipment is made up of power, execution, control and four kinds of elements such as auxiliary usually, and hydraulic jack is as realizing straight reciprocating motion or being less than the hydraulic mechanism of 360 ° of reciprocally swingings, for applying a very wide range of main executive component in hydraulic system.Therefore, the quality and performance of hydraulic jack becomes the key issue in hydraulic system, and the quality and performance how detecting hydraulic jack become hydraulic jack manufacturer must not irrespective problem.Hydraulic jack detection experiment mainly comprise minimum tripping force test, oil cylinder stroke test, total travel test, resistance to pressure test or in let out test etc., existing oil cylinder test structure of the detecting device is complicated, and install dumb when various oil cylinder is detected, or can not detect for the oil cylinder of various model, size.So not only make oil cylinder detect very complicated, and cost also can increase greatly.
Chinese patent CN201110290Y discloses a kind of multi-functional oil cylinder detection device, it comprises hydraulic station, control gear, detection device and oil cylinder cubing erecting device, wherein, the oil cylinder of required test is arranged on oil cylinder cubing erecting device, control gear is electrically connected with hydraulic station and detection device respectively, described detection device comprises the oil cylinder limit stoper be electrically connected with described control gear, and this oil cylinder limit stoper is arranged on described oil cylinder cubing erecting device.Oil cylinder limit stoper in detection device can produce the position signal of cylinder putter, and pass to control gear, the position signal of cylinder putter is accurately controlled by control gear, and pass to control gear, accurately control the stroke of cylinder putter by control gear and can measure in-oil cylinder pressure.Oil cylinder structure of the detecting device of the present utility model is complicated, and detects oil cylinder by oil cylinder limit stoper and detect position and reach stroke detection, and this detection mode lacks certain accuracy.Therefore, the testing apparatus that a kind of precision is high, structure simple, applicable various model oil cylinder detects is needed.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of hydraulic jack stroke test device, for solving the problem that in prior art, structure of the detecting device is complicated, testing precision is low.
For achieving the above object and other relevant objects, the invention provides a kind of hydraulic jack stroke test device, comprise linear displacement transducer, the side that sensor is worn in straight-line displacement is provided with the supporting frame of support hydraulic pressure oil cylinder, the pressure mechanism compressing hydraulic jack cylinder body is provided with above supporting frame, the Mobile base be fixedly linked with described hydraulic jack movable end is respectively equipped with at the two ends of supporting frame, the fixed base be connected with described hydraulic jack fixed end, described Mobile base to be placed on a slide guide and can to slide along slide guide, described slide guide and described linear displacement transducer are parallel to each other, described Mobile base, fixed base is equipped with the displacement detecting head with linear displacement transducer effect.
Preferably, described pressure mechanism comprises two compression cylinders vertically arranged.
Preferably, described fixed base is fixed on a fixing frame, and described fixing frame comprises supporting leg and is fixed on the guide rail between two supporting legs, and described fixed base is movably fixed on described guide rail.
Preferably, described fixed base comprises base, the connecting pin be fixed on base, described base is bolted on described guide rail, and described connecting pin is fixed in the mounting hole of described hydraulic jack fixed end.
Preferably, described fixed base comprises base, the link arm be fixed on base, and described base is fixed on described guide rail, and described link arm and described hydraulic jack fixed end bolt are fixed.
Preferably, described Mobile base is provided with connecting pin, and the piston rod of described connecting pin and described hydraulic jack is fixedly linked.
Preferably, the external diameter of described connecting pin is identical with attachment hole hole, described piston rod end internal diameter.
As mentioned above, hydraulic jack stroke test device of the present invention, has following beneficial effect: its need linear displacement transducer, can complete the stroke test of hydraulic jack; The fixed structure of this testing apparatus only need change fixed base, Mobile base simultaneously, gets final product the various types of hydraulic jack of fixation measuring, and its structure is simple, saves cost, is easy to control survey; And improve testing precision by utilizing linear displacement transducer.
Accompanying drawing explanation
Fig. 1 is shown as the plan view of hydraulic jack stroke test device first embodiment of the present invention.
Fig. 2 is shown as the plan view of hydraulic jack stroke test device first embodiment of the present invention.
Fig. 3 is shown as the side view of hydraulic jack stroke test device first embodiment of the present invention.
Fig. 4 is shown as the plan view of hydraulic jack stroke test device second embodiment of the present invention.
Fig. 5 is shown as the side view of hydraulic jack stroke test device second embodiment of the present invention.
Fig. 6 is shown as the schematic diagram of hydraulic jack stroke test device the 3rd embodiment of the present invention.
Fig. 7 is shown as the schematic diagram of hydraulic jack stroke test device the 4th embodiment of the present invention.
Element numbers explanation
1 linear displacement transducer
2 Mobile bases
21 connecting pins
22 bases
3 hydraulic jacks
31 piston rods
4 compression cylinders
5 fixed bases
51 bases
52 link arms
53 connecting pins
6 supporting frames
7 fixing frames
8,9 displacement detecting heads
Embodiment
By particular specific embodiment, embodiments of the present invention are described below, person skilled in the art scholar the content disclosed by this specification can understand other advantages of the present invention and effect easily.
Refer to Fig. 1 to Fig. 7.Notice, structure, ratio, size etc. that this specification institute accompanying drawings illustrates, content all only in order to coordinate specification to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the present invention can produce and the object that can reach, still all should drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, first embodiment of hydraulic jack stroke test device of the present invention, it comprises linear displacement transducer 1, the supporting frame 6 of support hydraulic pressure oil cylinder 3a is provided with in the side that sensor 1 is worn in straight-line displacement, the pressure mechanism compressing hydraulic jack cylinder body is provided with above supporting frame 6, in the present embodiment, this pressure mechanism is two compression cylinders 4 vertically arranged, and adopts compression cylinder 4 to be fastened on supporting frame 6 by hydraulic jack.The Mobile base 2 be fixedly linked with hydraulic jack movable end, the fixed base 5 be connected with hydraulic jack fixed end is respectively equipped with at the two ends of supporting frame 6, Mobile base 2 to be placed on a slide guide and can to slide along slide guide, slide guide and linear displacement transducer 1 are parallel to each other, and Mobile base 2, fixed base 5 are equipped with the displacement detecting that acts on linear displacement transducer 19,8.Test structure of the present invention is simple, only adopt a linear displacement transducer and be arranged on hydraulic jack fixed end, the displacement detecting head of movable end cooperatively interacts, both achieved the test to hydraulic jack stroke, and the utilization of linear displacement transducer improves testing precision.
For ease of the hydraulic jack of test Multiple Type size, above-mentioned fixed base 5 is fixed on a fixing frame 7, and fixing frame 7 comprises supporting leg 72 and is fixed on the guide rail 71 between two supporting legs, and fixed base 5 is movably fixed on guide rail 71.Actual size according to hydraulic jack regulates the mounting point of fixed base 5 on fixing frame 7, guarantees the spacing between Mobile base 2 and fixed base 5, makes the present invention be applied to the stroke test of each dimensional hydraulic oil cylinder.
As shown in Figure 3, this fixed base comprises base 51, the link arm 52 be fixed on base 51, and base 51 is fixed on guide rail 71, and link arm 52 and hydraulic jack fixed end bolt are fixed.
As shown in Figures 4 and 5, second embodiment of hydraulic jack stroke test device of the present invention, this example structure is substantially identical with the first embodiment, difference is the concrete attachment portion that fixed base 5, Mobile base 2 are connected with hydraulic jack, hydraulic jack 3b self structure in itself and the present embodiment matches, better to measure the oil cylinder of type identical with hydraulic jack 3b.As shown in Figure 5, this fixed base 5 comprises base 51, the connecting pin 53 be fixed on base 51, base 51 is fixed on guide rail 71 by Placements such as bolts, and connecting pin 53 is fixed in the mounting hole of hydraulic jack fixed end.
As shown in Figure 6,3rd embodiment of hydraulic jack stroke test device of the present invention, this example structure is substantially identical with the first embodiment, difference is the concrete attachment portion that fixed base 5, Mobile base 2 are connected with hydraulic jack, hydraulic jack 3c self structure in itself and the present embodiment matches, better to measure the oil cylinder of type identical with hydraulic jack 3c.In the present embodiment, the piston rod of hydraulic jack is fork structure, which is provided with attachment hole, therefore, the connecting pin 21 Mobile base 2 in the present embodiment comprising base 22 and be fixed on base, connecting pin 21 can dismounting and change, is fixedly linked by the piston rod of connecting pin 21 with hydraulic jack.The connecting pin of this Mobile base can design according to the size of attachment hole on hydraulic cylinder piston rod, and the external diameter of connecting pin 21 is identical with attachment hole hole, piston rod end internal diameter.
As shown in Figure 7,4th embodiment of hydraulic jack stroke test device of the present invention, this example structure is substantially identical with the first embodiment, in the present embodiment, hydraulic jack 3d own dimensions is longer, it is by regulating the position of fixed base 5 on fixing frame, initial mounting distance between adjustment fixed base 5, Mobile base 2, guarantees that the installation of this hydraulic jack 3d is fixed and measures.In the present embodiment, the structure of fixed base 5, Mobile base 2 is identical with the fixed base in second, third embodiment, Mobile base structure respectively, be applied in the attachment hole of hydraulic jack fixed end by connecting pin, be applied in the attachment hole of hydraulic cylinder piston rod by connecting pin simultaneously, reach the fixing of hydraulic jack two ends, and then carry out hydraulic jack stroke test.
Hydraulic jack stroke test device of the present invention can be found out by above embodiment, only need a linear displacement transducer, the stroke test of hydraulic jack can be completed, simultaneously the fixed structure of this testing apparatus only need change connecting pin on fixed base, Mobile base or link arm, get final product the various types of hydraulic jack of fixation measuring, its structure is simple, saves cost of production, is easy to control survey.And improve testing precision by utilizing linear displacement transducer.
Before test, first according to hydraulic jack fixed end and movable end structural characteristics, choose corresponding fixed base 5 and Mobile base 2, according to hydraulic jack own dimensions, the initial distance between fixed base 5 and Mobile base 2 is regulated, regulate by regulating the mounting point of fixed base 5 on fixing frame 7, then hydraulic jack is placed on supporting frame 6, then by compression cylinder 4, hydraulic jack is fastened on supporting frame 6, guarantee that hydraulic jack cylinder body is motionless; Then test, the spacing that hydraulic jack fixes between back piston boom end and hydraulic jack fixed end can be gone out by linear displacement transducer 1 direct-detection, and it is the original dimension of hydraulic jack self; Again hydraulic jack is started oil-filled, Mobile base 2 slides along slide guide under the drive of hydraulic cylinder piston rod, at this moment displacement detecting on fixed base 5, Mobile base 28,9 and linear displacement transducer 1 act on, by respective data transfer to Background control device, the action stroke of hydraulic cylinder piston rod can be detected; By hydraulic jack movable end and the pressurize of piston rod side, whether test piston rod has stroke, if there is stroke, the hydraulic jack tested has leakage, the hydraulic jack No leakage then tested on the contrary.By the test of travel displacement, complete the test whether hydraulic jack quality is qualified.
In sum, hydraulic jack stroke test device of the present invention, structure is simple, is convenient to produce install, and utilizes linear displacement transducer to carry out displacement measurement simultaneously, guarantees the precision tested.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (6)
1. a hydraulic jack stroke test device, it is characterized in that, comprise linear displacement transducer (1), the side of linear displacement transducer (1) is provided with the supporting frame (6) of support hydraulic pressure oil cylinder, the pressure mechanism compressing hydraulic jack cylinder body is provided with above supporting frame, the Mobile base (2) be fixedly linked with described hydraulic jack movable end is respectively equipped with at the two ends of supporting frame, the fixed base (5) be connected with described hydraulic jack fixed end, described Mobile base (2) to be placed on a slide guide and can to slide along slide guide, described slide guide and described linear displacement transducer (1) are parallel to each other, described Mobile base (2), fixed base (5) is equipped with the displacement detecting head (8 with linear displacement transducer effect, 9), described fixed base (5) is fixed on a fixing frame (7), described fixing frame (7) comprises supporting leg (72) and is fixed on the guide rail (71) between two supporting legs, and described fixed base (5) is movably fixed on described guide rail (71).
2. hydraulic jack stroke test device according to claim 1, is characterized in that: described pressure mechanism comprises two compression cylinders (4) vertically arranged.
3. hydraulic jack stroke test device according to claim 1, it is characterized in that: described fixed base (5) comprises base (51), the connecting pin (53) be fixed on base, described base (51) is bolted on described guide rail (71), and described connecting pin (53) is fixed in the mounting hole of described hydraulic jack fixed end.
4. hydraulic jack stroke test device according to claim 1, it is characterized in that: described fixed base (5) comprises base (51), the link arm (52) be fixed on base, described base (51) is fixed on described guide rail (71), and described link arm (52) and described hydraulic jack fixed end bolt are fixed.
5. hydraulic jack stroke test device according to claim 1, is characterized in that: described Mobile base (2) is provided with connecting pin (22), and described connecting pin (22) is fixedly linked with the piston rod of described hydraulic jack.
6. hydraulic jack stroke test device according to claim 5, is characterized in that: the external diameter of described connecting pin (22) is identical with attachment hole hole, described piston rod end internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167974.XA CN103423237B (en) | 2012-05-25 | 2012-05-25 | Hydraulic jack stroke test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210167974.XA CN103423237B (en) | 2012-05-25 | 2012-05-25 | Hydraulic jack stroke test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103423237A CN103423237A (en) | 2013-12-04 |
| CN103423237B true CN103423237B (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210167974.XA Expired - Fee Related CN103423237B (en) | 2012-05-25 | 2012-05-25 | Hydraulic jack stroke test device |
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| Country | Link |
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| CN (1) | CN103423237B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402080B (en) * | 2016-10-14 | 2018-03-27 | 哈尔滨工业大学 | All-in-one micro power position mixing servo hydraulic cylinder |
| CN109372825B (en) * | 2018-12-03 | 2023-12-26 | 广州市新欧机械有限公司 | Hydraulic cylinder delivery test bench |
| CN110685972B (en) * | 2019-08-21 | 2023-04-18 | 福建省龙岩液压集团有限公司 | High-precision oil-saving performance testing system for hydraulic oil cylinder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0681171A1 (en) * | 1994-05-02 | 1995-11-08 | Electricite De France | Apparatus for testing the imperviousness of a basin |
| CN2927141Y (en) * | 2005-06-28 | 2007-07-25 | 广州广重企业集团有限公司 | Rang feedback controlling mechanism |
| CN201021684Y (en) * | 2006-12-28 | 2008-02-13 | 比亚迪股份有限公司 | A stroke measurement device for hydraulic jar |
| CN201110290Y (en) * | 2007-09-30 | 2008-09-03 | 比亚迪股份有限公司 | Device for detecting multifunctional oil cylinder |
| CN202220774U (en) * | 2011-07-16 | 2012-05-16 | 三一重工股份有限公司 | Displacement detection device and oil cylinder with the same |
| CN202612270U (en) * | 2012-05-25 | 2012-12-19 | 上海爱德特检测设备制造有限公司 | Stroke test device of hydraulic oil cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678676A (en) * | 2012-06-04 | 2012-09-19 | 格力乐液压系统(常州)有限公司 | Hydrocylinder |
-
2012
- 2012-05-25 CN CN201210167974.XA patent/CN103423237B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0681171A1 (en) * | 1994-05-02 | 1995-11-08 | Electricite De France | Apparatus for testing the imperviousness of a basin |
| CN2927141Y (en) * | 2005-06-28 | 2007-07-25 | 广州广重企业集团有限公司 | Rang feedback controlling mechanism |
| CN201021684Y (en) * | 2006-12-28 | 2008-02-13 | 比亚迪股份有限公司 | A stroke measurement device for hydraulic jar |
| CN201110290Y (en) * | 2007-09-30 | 2008-09-03 | 比亚迪股份有限公司 | Device for detecting multifunctional oil cylinder |
| CN202220774U (en) * | 2011-07-16 | 2012-05-16 | 三一重工股份有限公司 | Displacement detection device and oil cylinder with the same |
| CN202612270U (en) * | 2012-05-25 | 2012-12-19 | 上海爱德特检测设备制造有限公司 | Stroke test device of hydraulic oil cylinder |
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| CN103423237A (en) | 2013-12-04 |
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Granted publication date: 20160323 Termination date: 20190525 |