CN201242486Y - Hydraulic loader - Google Patents
Hydraulic loader Download PDFInfo
- Publication number
- CN201242486Y CN201242486Y CNU2008200147608U CN200820014760U CN201242486Y CN 201242486 Y CN201242486 Y CN 201242486Y CN U2008200147608 U CNU2008200147608 U CN U2008200147608U CN 200820014760 U CN200820014760 U CN 200820014760U CN 201242486 Y CN201242486 Y CN 201242486Y
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- CN
- China
- Prior art keywords
- piston
- cylinder body
- loading device
- hydraulic loader
- calibration
- 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 - Fee Related
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Abstract
The utility model discloses a hydraulic loader, in particular to a loading device used for the load calibration of a mechanical press and a pressure sensor and the tension and compression test of a turbine blade root; the loading device comprises a cylinder body, a piston, a seal ring, a high pressure rubber tube, a standard pressure gauge and an electric pump. The hydraulic loader is characterized in that a sealing groove is arranged on the piston, the sealing groove of the piston is arranged in the seal ring and then positioned in the cylinder body, the upper surfaces of the cylinder body and the piston are in the same level, the standard pressure gauge is arranged in the inlet of the electric pump, one end of the high pressure rubber tube is connected with the oil inlet of the cylinder body, and the other end thereof is connected with the outlet of the electric pump. The hydraulic loader has the advantages that the structure is simple and practical, the calibration cost is reduced, the use range is broadened, and the calibration accuracy is improved.
Description
Technical field
The utility model relates to a kind of hydraulic pressure loading device, is used for the load calibration of punching machine and pressure transducer and the loading equipemtn of steam turbine blade root tension and compression test.
Background technology
At present, the calibration measurements of the demand in dicator of punching machine generally adopts pressure head, pressure rings method to carry out, this kind method needs to make polytype pressure rings according to the load of equipment, needs the adhering resistance strainometer on each pressure rings, and need be furnished with special-purpose surveying instrument; Before each the use, all need adhering resistance strainometer again, and could use after demarcating; This method intermediate link is many, need to consider stickup error, the calibrated error of pressure head and the measuring error of instrument etc. of strain ga(u)ge,, make stated accuracy reduce because system's cumulative errors are big, use also very inconveniently, the tonnage of Biao Dinging is below 500 tons simultaneously.
Summary of the invention
The purpose of this utility model be intended to reduce punching machine the demand in dicator calibration measurements systematic error and improve and demarcate tonnage, overcome the shortcoming and defect of the demand in dicator calibration measurements system of existing machinery pressing machine, a kind of hydraulic pressure loading device is provided, this hydraulic pressure loading device substitutes pressure head with piston and master gauge, pressure rings and surveying instrument, suppressing the piston rise that makes hydraulic pressure loading device by electrodynamic pump affacts on the press ram, the pressure transducer that the load that loads carries by equipment on the pressing machine column passes on the machine utilization display, the load that calculates according to oil pressure and piston area is adjusted the tonnage of machine utilization display, makes it reach request for utilization.
Technical solution of the present utility model is achieved in that
A kind of hydraulic pressure loading device, comprise cylinder body, piston, O-ring seal, high-pressure rubber pipe, master gauge and electrodynamic pump, it is characterized in that: piston is provided with seal groove, the piston seal groove O-ring seal of packing into is inserted in the cylinder body, the upper surface of cylinder body and piston is concordant, the electrodynamic pump inlet is equipped with master gauge, and high-pressure rubber pipe one end is connected with the cylinder body oil supply hole, and the other end is connected with the electrodynamic pump outlet.
Compared with prior art, the beneficial effects of the utility model are:
1, piston area of the present utility model is certain, can obtain to load load by piston area and pressure gauge reading, and therefore, this method has reduced intermediate link, and the systematic error of accumulative total is little, has improved stated accuracy;
2, the utility model has improved the demarcation tonnage, and the demarcation of tool tool pressing machine demand in dicator is brought up to 4000 tons by original 500 tons, and various Tensile or Compressive Loading tests are brought up to 2000 tons;
3, the utility model has increased range of application, can be used for the load calibration before 50 tons to 2000 tons pressure transducers use;
4 the utility model has the advantages that simple and practical, reduced calibration cost, increased usable range, improved stated accuracy.
Description of drawings
Fig. 1 is the hydraulic pressure loading device cut-open view.
Among the figure: 1 cylinder body, 2 pistons, 3 O-ring seals, 4 high-pressure rubber pipes, 5 master gauges, 6 electrodynamic pumps.
Embodiment
A kind of hydraulic pressure loading device as shown in Figure 1 comprises cylinder body 1, piston 2, O-ring seal 3, high-pressure rubber pipe 4, master gauge 5 and electrodynamic pump 6; It is characterized in that: piston 2 is provided with seal groove, the piston seal groove O-ring seal 3 of packing into is inserted in the cylinder body 1, and cylinder body 1 is concordant with the upper surface of piston 2, and electrodynamic pump 6 inlets are equipped with master gauge 5, high-pressure rubber pipe 4 one ends are connected with cylinder body 1 oil supply hole, and the other end is connected with electrodynamic pump 6 outlets.
Timing signal, hydraulic pressure loading device is placed on the press bench, press ram is located at lower dead point position, gap between hydraulic pressure loading device piston and the slide block is adjusted by cushion block, demarcation is undertaken by the different load classification of equipment, suppressing the piston rise that makes hydraulic pressure loading device by electrodynamic pump affacts on the slide block, the load that loads passes on the machine utilization display by the pressure transducer that carries on the pressing machine column, the load that calculates according to oil pressure and piston area is adjusted the tonnage of machine utilization display, makes it reach request for utilization.The utility model has reduced calibration cost, has increased usable range, has improved stated accuracy.
Claims (1)
1, a kind of hydraulic pressure loading device, comprise cylinder body (1), piston (2), O-ring seal (3), high-pressure rubber pipe (4), master gauge (5) and electrodynamic pump (6), it is characterized in that: piston (2) is provided with seal groove, the piston seal groove O-ring seal (3) of packing into is inserted in the cylinder body (1), cylinder body (1) is concordant with the upper surface of piston (2), electrodynamic pump (6) inlet is equipped with master gauge (5), and high-pressure rubber pipe (4) one ends are connected with cylinder body (1) oil supply hole, and the other end is connected with electrodynamic pump (6) outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200147608U CN201242486Y (en) | 2008-08-13 | 2008-08-13 | Hydraulic loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200147608U CN201242486Y (en) | 2008-08-13 | 2008-08-13 | Hydraulic loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242486Y true CN201242486Y (en) | 2009-05-20 |
Family
ID=40715776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200147608U Expired - Fee Related CN201242486Y (en) | 2008-08-13 | 2008-08-13 | Hydraulic loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242486Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255544A (en) * | 2017-06-12 | 2017-10-17 | 中国航发湖南动力机械研究所 | Load sensor calibrating device |
-
2008
- 2008-08-13 CN CNU2008200147608U patent/CN201242486Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255544A (en) * | 2017-06-12 | 2017-10-17 | 中国航发湖南动力机械研究所 | Load sensor calibrating device |
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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: CHINA FIRST HEACY MACHINE STOCK CO., LTD. Free format text: FORMER OWNER: CHINESE NO.1 HEAVY MECHANICAL GROUP CO. Effective date: 20090807 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Zhang Qian Road, Fulaerji District, Qigihar City, Heilongjiang Province, zip code: 161042 Co-patentee after: DALIAN DESIGN INSTITUTE Co.,Ltd. CHINA FIRST HEAVY INDUSTRIES Patentee after: China First Heavy Industries Address before: Zhang Qian Road, Fulaerji District, Qigihar City, Heilongjiang Province, zip code: 161042 Co-patentee before: Dalian Design and Research Institute, First Heavy Industries Group Patentee before: China First Heavy Industries |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20090807 Address after: Zhang Qian Road, Fulaerji District, Qigihar City, Heilongjiang Province, zip code: 161042 Co-patentee after: DALIAN DESIGN INSTITUTE Co.,Ltd. CHINA FIRST HEAVY INDUSTRIES Patentee after: China First Heavy Machinery Co., Ltd. Address before: Zhang Qian Road, Fulaerji District, Qigihar City, Heilongjiang Province, zip code: 161042 Co-patentee before: DALIAN DESIGN INSTITUTE Co.,Ltd. CHINA FIRST HEAVY INDUSTRIES Patentee before: China First Heavy Industries |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20130813 |