CN102519687B - Oil cylinder assembly on-line detection device - Google Patents
Oil cylinder assembly on-line detection device Download PDFInfo
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- CN102519687B CN102519687B CN201110435885.4A CN201110435885A CN102519687B CN 102519687 B CN102519687 B CN 102519687B CN 201110435885 A CN201110435885 A CN 201110435885A CN 102519687 B CN102519687 B CN 102519687B
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- cylinder assembly
- release lever
- carriage release
- hydraulic cylinder
- oil cylinder
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Abstract
The invention discloses an oil cylinder assembly on-line detection device, which comprises a support table frame. An oil cylinder assembly fixing frame and an oil cylinder assembly hydraulic control loop are arranged on the support table frame. A force sensor used for being contacted with the end portion of an oil cylinder piston rod in top pressing mode is positioned on the support table frame. A conical surface sealing fast port device of an oil cylinder assembly oil inlet and outlet port is connected on the support table frame. The oil cylinder assembly on-line detection device adopts the force sensor to achieve production performance test of an oil cylinder assembly, a test object is directly targeted without any transition link, test results are real and reliable, and test accuracy is improved. The oil cylinder assembly on-line detection device meets the requirement of a user for reliability of product performance and simultaneously meets the requirement for safety performance of an automobile cab overturning and lifting mechanism.
Description
Technical field
The invention belongs to auto parts and components pick-up unit, be specifically related to a kind of performance detection apparatus of hydraulic cylinder assembly.
Background technology
Automobile is in the time of maintenance maintenance engine, driver's cab turnover must be got up, whole process realizes by elevating ram assembly, so functional defect hydraulic cylinder assembly comes into the market, direct reputation and image to enterprise caused to harmful effect, all hydraulic cylinder assemblies that my company produces for this reason must pass through Performance Detection before dispatching from the factory.
Oil cylinder is produced and is generally all used traditional analog testing table to carry out the Performance Detection of dispatching from the factory of hydraulic cylinder assembly, mainly that simulation hydraulic cylinder assembly is under whole vehicle state, the bonnet of hydraulic cylinder assembly and piston rod attachment are installed on simulator stand by bearing pin, manually connect oil circuit, the large chamber of hydraulic cylinder assembly fuel feeding is suppressed and made piston rod promote the top dead centre that is loaded on testing table, continue to suppress to pressurize after detected pressures, Pressure Drop by the tensimeter instruction that in range estimation oil supply process, piston rod rising is connected with the large chamber of dwell time inner cylinder assembly with the motion state declining is realized the withstand voltage of hydraulic cylinder assembly, internal leakage, the detection of every performance of dispatching from the factory such as outer seepage, due to system and malobservation stack, cause accuracy of detection poor.
Traditional simulator stand need be installed on the bonnet of hydraulic cylinder assembly and piston rod on testing table by bearing pin is manual, completes oil circuit docking operation by hand, and oil circuit connection reliability is poor, has also affected accuracy of detection simultaneously, complex operation, and detection efficiency is low.
Along with the increasing of automobile industry to hydraulic cylinder demand and the raising of quality requirements; the detection of traditional simulator stand, display precision; there are problems in the aspects such as detection efficiency, versatility, applicability, logistics, floor area, cannot meet the needs of scale, robotization, seriation development.
Summary of the invention
The object of the present invention is to provide one can realize when oil cylinder detects and can realize fast oil pipe line from being dynamically connected, and be suitable for the hydraulic cylinder assembly online detection instrument of the detection of serial oil cylinder, to address the above problem.
Technical scheme of the present invention is: hydraulic cylinder assembly online detection instrument, and it comprises support stand, support stand is provided with hydraulic cylinder assembly fixed mount, and hydraulic cylinder assembly hydraulic control circuit; Support stand is provided with the power sensor of pressing for contact top with oil cylinder piston boom end, is connected with the conical surface seal fast interface device of hydraulic cylinder assembly oil inlet and outlet on support stand.
On support stand, establish supporting jointing piece, power sensor is fixed on supporting jointing piece, and supporting jointing piece is connected with adjustment of displacement plate, on described adjustment of displacement plate, is interval with the adjusting hole that is threaded, and supporting jointing piece is connected with the adjusting hole that is threaded.Power sensing station adjustable, makes this equipment can detect the oil cylinder of different length, realizes the versatility, the applicability that detect oil cylinder, seriation.
Conical surface seal fast interface device comprises contiguous block, is provided with oil pipe in contiguous block, and the oil-out of oil pipe is connected with conical surface seal rapid-acting coupling, and the oil-in of oil pipe is located on the surface of contiguous block; Contiguous block is connected with carriage release lever, and carriage release lever contacts or is connected with drives structure.It has realized the support of rapid-acting coupling and the problem of automatic operation, simple.
Described drives structure comprises oil cylinder, the piston rod of the oil cylinder depression bar one end that is articulated and connected, and depression bar and bracing frame are articulated and connected, and the depression bar other end contacts with carriage release lever end.Adopt hydraulic-driven structure, simplified structure first, second can have some parts utilizing in hydraulic control circuit, as fuel tank etc., saves cost.
Contiguous block comprises the first contiguous block and the second contiguous block, the first contiguous block with on the second contiguous block, be connected respectively the first carriage release lever and the second carriage release lever, the first carriage release lever and the second carriage release lever are through orienting lug, the end of the first carriage release lever and the second carriage release lever is connected with briquetting, and briquetting contacts or is connected with the depression bar other end.Can realize the quick connection of detected oil cylinder oil inlet mouth, oil-out, compact conformation, is convenient to connection.
Between briquetting and orienting lug, on the first carriage release lever and the second carriage release lever, be equipped with back-moving spring.Employing spring resets, and can reduce the syndeton between briquetting and depression bar, is convenient to change different briquettings, is suitable for the detection of different oil cylinders.
Supporting jointing piece is provided with mobile guide groove, and mobile guide groove is stuck on adjustment of displacement plate.This structure makes adjustment of displacement plate and supporting jointing piece form guide rail slide block syndeton, is convenient to the mobile of power sensing station and regulates.
Depression bar is provided with pressure head, has sphere-contact face between briquetting and pressure head.
Briquetting is provided with spheroidal groove, and pressure head has the end face of spheric, the spheroidal groove fit on end face and the briquetting of the spheric of pressure head.
Stressedly between when the pressing down contact structures and can avoid two surface of contact to press down of sphere-contact face evenly avoid stress to concentrate, can realize simultaneously between two surface of contact, press down process relative laminating adjustment.
Briquetting is connected with the first attachment cap and the second attachment cap, and the first attachment cap is connected with the first carriage release lever end, and the second attachment cap is connected with the second carriage release lever end.Syndeton between employing attachment cap and briquetting is convenient to the installation of parts, changes.
The present invention adopts conical surface seal fast interface device can automatically realize detected oil cylinder oil inlet and outlet to connect fast, in testing process, briquetting is exerted pressure to depression bar all the time, ensure on the one hand the combination seal that having of two sealing cones is good, meanwhile, ensure that two sealing cones can bear high oil pressure and detect.
The novel online detection instrument of hydraulic cylinder assembly utilizes the output carrier of power sensor as the system signal of hydraulic cylinder assembly oil pressure and internal and outernal leakage, the micro-leakage amount existing in tested hydraulic cylinder assembly directly reflects by digital indicator, and the numerical value of detection is true and reliable;
This online detection instrument has been realized online detection, has avoided the logistics between general assembly and Performance Detection, reduces labour intensity, effectively raises detection efficiency.
This oil cylinder online detection instrument also possess be simultaneously installed convenient, stroke, withstand voltage pressure, the universal performance such as pressure-resistant time is adjustable, whole system is safe, controlled.Can be applicable to the Performance Detection of various hydraulic cylinder assembly production fields.
The present invention proposes the novel online detection instrument of hydraulic cylinder assembly adopts power sensor to realize the Performance Detection of dispatching from the factory to hydraulic cylinder assembly, detected object is direct, there is no excessive link, testing result is true and reliable, accuracy of detection is improved, meet the reliability requirement of user to properties of product, also met the requirement of automobile cab turnover elevating mechanism security performance simultaneously.
All can require accurately to arrange according to the kind that detects hydraulic cylinder assembly because this oil cylinder online detection instrument possesses stroke, detected pressures, pressure-resistant time, detect so can be applicable to the combination property in various hydraulic cylinder assemblies field.
Brief description of the drawings
Fig. 1 hydraulic cylinder assembly online detection instrument structural representation.
Schematic diagram is looked on Fig. 2 hydraulic cylinder assembly online detection instrument structure left side.
Fig. 3 conical surface seal fast interface apparatus structure schematic diagram I.
Fig. 4 conical surface seal fast interface apparatus structure schematic diagram II.
Fig. 5 supporting jointing piece moves guide groove card and adjustment of displacement plate connection diagram.
Fig. 6 detects hydraulic control circuit schematic diagram.
Embodiment
As shown in Figure 1, support stand 100, according to being designed to work top 101, is established bracing frame 102 on work top 101, and work top 101 is divided into supporting leg 103.Can be designed to be able to detect the structure of multiple oil cylinder general names, in the present embodiment, support stand 100 can detect four oil cylinder general names simultaneously simultaneously, is divided into bracing frame 102 1 sides and establishes 2, and opposite side also arranges two (shown in Fig. 2).
The relevant control operating instrument 110 that detects use connects on bracing frame 102.
Support stand 100 is established hydraulic cylinder assembly fixed mount 120, and detected oil cylinder 150 is located on hydraulic cylinder assembly fixed mount 120.
On work top 101, be connected with adjustment of displacement plate 160, on adjustment of displacement plate 160, be interval with and connect adjusting hole 161.
Supporting jointing piece 170 is provided with mobile guide groove 171, and mobile guide groove 171 is stuck in (as shown in Figure 5) on adjustment of displacement plate 160, and structure makes adjustment of displacement plate and supporting jointing piece form guide rail slide block syndeton.Supporting jointing piece 170 with adjustment of displacement plate 160 by pin or bolt 172 and be connected adjusting hole 161 and connect.Power sensor 180 is fixedly connected on supporting jointing piece 170.Regulate the diverse location of supporting jointing piece 170 by movement, variation that can realizable force sensor 180 positions, thus realize the detection of different stroke oil cylinders.
On support stand 100, be connected with the conical surface seal fast interface device 200 of hydraulic cylinder assembly oil inlet and outlet.
As shown in Figure 3,4, conical surface seal fast interface device 200 comprises contiguous block, and in the present embodiment, contiguous block comprises the first contiguous block 201 and the second contiguous block 202, is respectively oil-in, the oil-out of corresponding tested oil cylinder; The first contiguous block 201 is identical with the second contiguous block 202 structures, be illustrated with the first contiguous block 201: in the first contiguous block 201, be provided with oil pipe 203, the oil-out 204 of oil pipe 203 is connected with conical surface seal rapid-acting coupling 205, the oil-in 206 of oil pipe is located on the surface of contiguous block, and its realization is connected with external oil pipe.Conical surface seal rapid-acting coupling 205 is tapers, and the taper in the external hydraulic fluid port of it and tested oil cylinder matches.The conical surface is provided with packoff.
Conical surface seal fast interface device 200 also comprises the first carriage release lever 207 and the second carriage release lever 208 that are connected respectively with the first contiguous block 201 and the second contiguous block 202, the first carriage release lever 207 and the second carriage release lever 208 are through orienting lug 209, orienting lug 209 is connected with support bar 210, and support bar 210 is fixed on work top 101.
The first attachment cap 211 is connected with the first carriage release lever 207 ends, and the second attachment cap 212 is connected with the second carriage release lever 208 ends.On the first attachment cap 211 and the second attachment cap 212, be connected with briquetting 213.Said structure is convenient to the installation of two carriage release levers.
Between briquetting 213 and orienting lug 209, on the first carriage release lever and the second carriage release lever, be equipped with back-moving spring 214,215.
Oil cylinder 220 is vertically located on work top 101, be articulated and connected one end of depression bar 230, the piston rod end of oil cylinder 220, and the middle part of depression bar 230 and support bar 210 are articulated and connected, and the other end of depression bar 230 is provided with pressure head 231, forms like this lever compressing structure.
Sphere-contact face between pressure head 231 and briquetting 213.
Concrete, briquetting 213 is provided with spheroidal groove 218, and pressure head 231 has the end face 232 of spheric, the spheroidal groove fit on end face and the briquetting of the spheric of pressure head.
As shown in Figure 6, detect hydraulic control circuit and comprise fuel tank 300, and the automatic pump 301 and the manual pump 302 that connect; The fuel-displaced pipeline of automatic pump 301 is connected with overflow relief valve 303; And be connected with reversal valve 304 on the flowline of the automatic pump 301 connecting and manual pump 302; Two oil pipes of reversal valve 304 be connected with the external hydraulic fluid port of tested oil cylinder 310 by filtrator 305, connect by conical surface seal rapid-acting coupling 205.On the external oil pipe of the rodless cavity of tested oil cylinder, be connected with hydraulic control one-way valve 306, transfer valve 307 and stop valve 308.
The Performance Detection of the novel online detection instrument of hydraulic cylinder assembly, that oil cylinder is clamped to test station, adopt conical surface seal interface quick locking, realize the rapid abutting joint of oil circuit, start electrodynamic pump and suppress fuel feeding, piston rod moves ahead, after propping up power sensor, continues in the piston rod of hydraulic cylinder assembly pressurization, make hydraulic cylinder assembly inner chamber reach test detected pressures P1, now power sensor is experienced hydraulic cylinder assembly and is specified the power F1 exporting after test pressure, pressurize is after regulation, power sensor is experienced again the power F2 of hydraulic cylinder assembly to output, now digital switch calculates Pressure Drop Δ P=(the F1-F2)/S in the dwell time automatically, it (is that piston cross-section is long-pending for non-differential cylinder that S-inputs setting according to test hydraulic cylinder assembly kind, be piston rod sectional area for cylinder with differential effect), and directly numerical value is shown, realize the withstand voltage of hydraulic cylinder assembly, internal leakage, the combination property of every performance of dispatching from the factory such as outer seepage detects.
When detection, because contiguous block, carriage release lever, briquetting are passed through in the conical surface seal rapid-acting coupling 205 of conical surface seal interface arrangement.The effect of lever depression bar pressure head and oil cylinder keeps sealing closely to contact with the external hydraulic fluid port of tested oil cylinder all the time, to realize quick pipe connection, the sealing when detection that keeps pressure and high pressure resistant.
Detection completes to be laid down after testing oil pressure completely, and the piston rod of oil cylinder 220 is retracted, and carriage release lever moves under the effect of spring force, and conical surface seal rapid-acting coupling 205 is separated with the external hydraulic fluid port of tested oil cylinder, simple fast, without manual operation.
Claims (8)
1. a hydraulic cylinder assembly online detection instrument, it comprises support stand, support stand is provided with hydraulic cylinder assembly fixed mount, and hydraulic cylinder assembly hydraulic control circuit; It is characterized in that support stand is provided with the power sensor of pressing for contact top with oil cylinder piston boom end, is connected with the conical surface seal fast interface device of hydraulic cylinder assembly oil inlet and outlet on support stand; Conical surface seal fast interface device comprises contiguous block, is provided with oil pipe in contiguous block, and the oil-out of oil pipe is connected with conical surface seal rapid-acting coupling, and the oil-in of oil pipe is located on the surface of contiguous block; Contiguous block is connected with carriage release lever, and carriage release lever contacts or is connected with drives structure; Described drives structure comprises oil cylinder, the piston rod of the oil cylinder depression bar one end that is articulated and connected, and depression bar and support bar are articulated and connected, and the depression bar other end contacts with carriage release lever end.
2. hydraulic cylinder assembly online detection instrument as claimed in claim 1, it is characterized in that establishing on support stand supporting jointing piece, power sensor is fixed on supporting jointing piece, supporting jointing piece is connected with adjustment of displacement plate, on described adjustment of displacement plate, be interval with connection adjusting hole, supporting jointing piece is connected with the adjusting hole that is threaded.
3. hydraulic cylinder assembly online detection instrument as claimed in claim 1, it is characterized in that contiguous block comprises the first contiguous block and the second contiguous block, the first contiguous block with on the second contiguous block, be connected respectively the first carriage release lever and the second carriage release lever, the first carriage release lever and the second carriage release lever are through orienting lug, the end of the first carriage release lever and the second carriage release lever is connected with briquetting, and briquetting contacts or is connected with the depression bar other end.
4. hydraulic cylinder assembly online detection instrument as claimed in claim 3, is characterized in that on the first carriage release lever and the second carriage release lever, being equipped with back-moving spring between briquetting and orienting lug.
5. hydraulic cylinder assembly online detection instrument as claimed in claim 2, is characterized in that supporting jointing piece is provided with mobile guide groove, and mobile guide groove is stuck on adjustment of displacement plate.
6. hydraulic cylinder assembly online detection instrument as claimed in claim 3, is characterized in that depression bar is provided with pressure head, has sphere-contact face between briquetting and pressure head.
7. hydraulic cylinder assembly online detection instrument as claimed in claim 6, is characterized in that briquetting is provided with spheroidal groove, and pressure head has the end face of spheric, the spheroidal groove fit on end face and the briquetting of the spheric of pressure head.
8. hydraulic cylinder assembly online detection instrument as described in claim 3,4,6 or 7, is characterized in that briquetting is connected with the first attachment cap and the second attachment cap, and the first attachment cap is connected with the first carriage release lever end, and the second attachment cap is connected with the second carriage release lever end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435885.4A CN102519687B (en) | 2011-12-22 | 2011-12-22 | Oil cylinder assembly on-line detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435885.4A CN102519687B (en) | 2011-12-22 | 2011-12-22 | Oil cylinder assembly on-line detection device |
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| Publication Number | Publication Date |
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| CN102519687A CN102519687A (en) | 2012-06-27 |
| CN102519687B true CN102519687B (en) | 2014-12-10 |
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| CN201110435885.4A Active CN102519687B (en) | 2011-12-22 | 2011-12-22 | Oil cylinder assembly on-line detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103063450A (en) * | 2012-12-25 | 2013-04-24 | 青岛四方车辆研究所有限公司 | Buffer static pressure test stand |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3874225A (en) * | 1973-10-01 | 1975-04-01 | Irontite Products Co Inc | Pressure tester for injector sleeve of diesel engine head |
| US5040579A (en) * | 1989-06-14 | 1991-08-20 | Shikoku Kakoki Co., Ltd. | Device for detecting leak in metering cylinder of liquid filling machine |
| CN2396389Y (en) * | 1999-11-17 | 2000-09-13 | 宰学泉 | Integrated hydraulic oil pump pressure-meter |
| CN2881583Y (en) * | 2006-03-31 | 2007-03-21 | 津伦(天津)精密机械制造有限公司 | Pressure device for detecting tank leak |
| CN101135598A (en) * | 2006-08-30 | 2008-03-05 | 上海铁路局上海车辆段 | Quick-speed passenger car air spring testing apparatus and process thereof |
| CN201133390Y (en) * | 2007-12-19 | 2008-10-15 | 中国重型机械研究院 | Cylinder valve integrated servo-vibration hydraulic cylinder device |
| CN201265573Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test bed for hydraulic cylinder |
| CN201561845U (en) * | 2009-10-23 | 2010-08-25 | 中国北车集团大连机车研究所有限公司 | Piston seal performance testing device |
| CN201749002U (en) * | 2010-08-04 | 2011-02-16 | 大连智云自动化装备股份有限公司 | Airtight detector of valve seat fuel charging valve |
| CN202372321U (en) * | 2011-12-22 | 2012-08-08 | 东风汽车公司 | On-line detection equipment of oil cylinder assembly |
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Application publication date: 20120627 Assignee: Dongfeng (Shiyan) Vehicle Hydraulic Power Co., Ltd. Assignor: Dongfeng Car Co. Contract record no.: 2015420000142 Denomination of invention: Oil cylinder assembly on-line detection device Granted publication date: 20141210 License type: Exclusive License Record date: 20150721 |
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