CN102944471A - Pressure test machine for doing steel ball test - Google Patents
Pressure test machine for doing steel ball test Download PDFInfo
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- CN102944471A CN102944471A CN2012104551555A CN201210455155A CN102944471A CN 102944471 A CN102944471 A CN 102944471A CN 2012104551555 A CN2012104551555 A CN 2012104551555A CN 201210455155 A CN201210455155 A CN 201210455155A CN 102944471 A CN102944471 A CN 102944471A
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Abstract
The invention relates to a pressure test machine for doing a steel ball test, which mainly adopts an oil cylinder mounted on a base, wherein the oil cylinder is internally provided with a piston and the piston is provided with a load sensor; a lower bearing plate is mounted on the load sensor; the base is provided with a displacement sensor; an upper beam and the base are connected through four stand columns to form a whole body; an electric hoisting mechanism is mounted above the upper beam; an upper bearing plate is connected with a convex spherical base to be positioned into a concave ball of a screw rod; a spiral pair is formed by a screw rod and a screw rod nut; the screw rod nut rotates so that the screw rod drives the upper bearing plate to generate ascending or descending movement and the distance between the upper bearing plate and the lower bearing plate is adjusted; and a hydraulic system is communicated with the oil cylinder through an oil inlet/outlet pipe. The pressure test machine has a compact and reasonable structure; the piston can rapidly fall back after a steel ball is broken; the maximum force is 3000 KN and the displacement can be measured; a space needed by doing the steel ball test can be met; and the deformation amount of the steel ball in a test process can be more directly reflected.
Description
Technical field
The present invention relates to a kind of pressure testing machine of doing ball test, particularly a kind of pressure testing machine that can displacement.
Background technology
Pressure testing machine is mainly used in the Compressive Mechanical Properties test of metal, nonmetallic materials.Existing pressure testing machine is anti-folding or the compression test of making cement test block and concrete test block mostly, and its test space can't satisfy does the required space of ball test.In addition, in order to reflect more intuitively the deflection of steel ball in the process of the test, increase the deflection that displacement transducer is measured steel ball at pressure testing machine.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, a kind of pressure testing machine of doing ball test is provided, this pressure testing machine test can allow piston can fall after rise fast behind the broken type of steel ball; Maximum, force 3000KN can measure displacement; Can satisfy and do the required space of ball test; And the deflection that can reflect more intuitively steel ball in the process of the test.
According to technical scheme provided by the invention, the pressure testing machine of doing ball test comprises base, displacement transducer, column, oil cylinder, piston, load sensor, lower bearing plate, upper bearing plate, protruding ball seat, screw mandrel, feed screw nut, upper beam and hydraulic system; Described oil cylinder is installed on the base, and piston is housed in oil cylinder, and load sensor is housed on the piston, and lower bearing plate is installed on the load sensor; Installation position displacement sensor on base; Upper beam and base connect to an integral body by four root posts; Above the described upper beam electric lifting mechanism is housed, upper bearing plate connects in the recessed ball that protruding ball seat is positioned screw mandrel, and screw mandrel and feed screw nut form screw pair, feed screw nut's rotation, make screw mandrel drive upper bearing plate and produce rising or descending motion, the distance in the adjusting between bearing plate, the lower bearing plate; Hydraulic system is connected by the turnover oil pipe with oil cylinder.
As a further improvement on the present invention, described hydraulic system comprises fuel tank, digital flow operation valve, two-position four way change valve, oil filter and oil pump; Described digital flow operation valve and two-position four way change valve are contained on the valve plate, and valve plate is fixed on the fuel tank, and the oil-in of valve plate is connected with oil filter, and oil pump is connected with oil filter, and the oil-out of valve plate is connected with oil cylinder.
As a further improvement on the present invention, described electric lifting mechanism comprises motor, worm screw and gear, and described motor is by the coupling band connecting worm, and worm screw and gear mesh by helical teeth, gear and feed screw nut are fastening, make the rotation of motor pass to the feed screw nut and drive the screw mandrel lifting.
Compared with the prior art the present invention has the following advantages:
Compact conformation of the present invention, reasonable; Can allow piston behind the broken type of steel ball, can fall after rise fast; Maximum, force 3000KN can measure displacement; Can satisfy and do the required space of ball test; And the deflection that can reflect more intuitively steel ball in the process of the test.
Description of drawings:
Fig. 1 is structural representation of the present invention.
Fig. 2 is electric lifting mechanism structural representation of the present invention.
Fig. 3 is hydraulic system principle figure of the present invention.
Embodiment:
Following the present invention is further described in connection with the embodiment in the accompanying drawing:
Such as Fig. 1～shown in Figure 3, comprise nut 1, base 2, displacement transducer 3, turnover oil pipe 4, column 5, oil cylinder 6, piston 7, load sensor 8, lower bearing plate 9, upper bearing plate 10, protruding ball seat 11, screw mandrel 12, feed screw nut 13, put the beams in place 14, motor 15, worm screw 16, gear 17 and hydraulic system (fuel tank 18, digital flow operation valve 19, two-position four way change valve 20, oil filter 21, oil pump 22).
The present invention adopts oil cylinder 6 to be installed on the base 2, and piston 7 is housed in oil cylinder 6, and load sensor 8 is housed on the piston 7, and test force is by the load sensor direct-detection, and lower bearing plate 9 is installed on the load sensor 8; Installation position displacement sensor 3 on base 2; Upper beam 14 and base 2 connect to an integral body by four root posts 5, are fastened on the base 2 by nut 1; Above the described upper beam 14 electric lifting mechanism is housed, upper bearing plate 10 connects protruding ball seat 11 and is positioned in the recessed ball of screw mandrel 12, screw mandrel 12 forms screw pair with feed screw nut 13, feed screw nut's 13 rotations, make screw mandrel 12 drive upper bearing plate 10 and produce rising or descending motion, thereby regulate the distance between upper bearing plate 10, the lower bearing plate 9; Hydraulic system is connected by turnover oil pipe 4 with oil cylinder 6.
Described hydraulic system comprises fuel tank 18, digital flow operation valve 19, two-position four way change valve 20, oil filter 21 and oil pump 22; Described digital flow operation valve 19 and two-position four way change valve 20 are contained on the valve plate, and valve plate is fixed on the fuel tank 18, and the oil-in of valve plate is connected with oil filter 21, and oil pump 22 is connected with oil filter 21, and the oil-out of valve plate is connected with oil cylinder 6.
Described electric lifting mechanism comprises motor 15, worm screw 16 and gear 17, described motor 15 is by coupling band connecting worm 16, and worm screw 16 meshes by helical teeth with gear 17, and gear 17 is fastening with feed screw nut 13, make the rotation of motor 15 pass to feed screw nut 13, thereby drive screw mandrel 12 liftings.
The course of work of the present invention and principle of work
When on-test, put the steel ball that needs detection at lower bearing plate 9, open program, start oil pump 22, click operation, this moment, two-position four way change valve 20 was closed, hydraulic oil enters oil cylinder 6 by oil filter 21, oil circuit, digital flow operation valve 19, and piston 7 is risen, and load sensor 8 is accurately measured the power value and fed back to computing machine and compares calculating, and then the update the system parameter, finish the closed-loop control of power value.Piston rises, and displacement transducer 3 is namely started working, and can see the distance that piston 7 rises at program window, rigidly connects at steel ball and clicks reset key when touching bearing plate 10, and the shift value that shows when treating this time off-test is the deflection of steel ball in the test.
Two-position four way change valve 20 in the described hydraulic system has the function of quick relief, when the broken type of steel ball, program is opened quick oil return function automatically, two-position four way change valve 20 actions, make the oil of 6 li of oil cylinders by another passage Rapid Flow oil sump tank 18, thereby piston 7 can fall after rise fast.
Claims (4)
1. a pressure testing machine of doing ball test is characterized in that: comprise base (2), displacement transducer (3), column (5), oil cylinder (6), piston (7), load sensor (8), lower bearing plate (9), upper bearing plate (10), protruding ball seat (11), screw mandrel (12), feed screw nut (13), put the beams in place (14) and hydraulic system; Described oil cylinder (6) is installed on the base (2), and piston (7) is housed in oil cylinder (6), and load sensor (8) is housed on the piston (7), and lower bearing plate (9) is installed on the load sensor (8); At the upper installation position displacement sensor (3) of base (2); Upper beam (14) and base (2) connect to an integral body by column (5); Described upper beam is equipped with electric lifting mechanism above (14), upper bearing plate (10) connects in the recessed ball that protruding ball seat (11) is positioned screw mandrel (12), screw mandrel (12) forms screw pair with feed screw nut (13), feed screw nut (13) rotation, make bearing plate (10) generation rising or descending motion in screw mandrel (12) drive, the distance between bearing plate in the adjusting (10), the lower bearing plate (9); Hydraulic system is connected by turnover oil pipe (4) with oil cylinder (6).
2. the pressure testing machine of doing ball test as claimed in claim 1, it is characterized in that: described hydraulic system comprises fuel tank (18), digital flow operation valve (19), two-position four way change valve (20), oil filter (21) and oil pump (22); Described digital flow operation valve (19) and two-position four way change valve (20) are contained on the valve plate, valve plate is fixed on the fuel tank (18), the oil-in of valve plate is connected with oil filter (21), and oil pump (22) is connected with oil filter (21), and the oil-out of valve plate is connected with oil cylinder (6).
3. the pressure testing machine of doing ball test as claimed in claim 1, it is characterized in that: described electric lifting mechanism comprises motor (15), worm screw (16) and gear (17), described motor (15) is by coupling band connecting worm (16), worm screw (16) meshes by helical teeth with gear (17), gear (17) is fastening with feed screw nut (13), makes the rotation of motor (15) pass to the lifting of feed screw nut (13) drive screw mandrel (12).
4. the pressure testing machine of doing ball test as claimed in claim 1 is characterized in that: four of described column (5) employings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104551555A CN102944471A (en) | 2012-11-14 | 2012-11-14 | Pressure test machine for doing steel ball test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104551555A CN102944471A (en) | 2012-11-14 | 2012-11-14 | Pressure test machine for doing steel ball test |
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| Publication Number | Publication Date |
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| CN102944471A true CN102944471A (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104551555A Pending CN102944471A (en) | 2012-11-14 | 2012-11-14 | Pressure test machine for doing steel ball test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021464A (en) * | 2015-06-26 | 2015-11-04 | 苏州洲盛非晶科技有限公司 | Pressure testing machine used for ultracrystalline iron cores |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251533Y (en) * | 2008-09-04 | 2009-06-03 | 浙江土工仪器制造有限公司 | Block compression testing machine |
| CN201689015U (en) * | 2010-03-31 | 2010-12-29 | 无锡建仪仪器机械有限公司 | Constant-loading pressure tester |
| CN202916149U (en) * | 2012-11-14 | 2013-05-01 | 无锡建仪仪器机械有限公司 | Pressure test machine for steel ball test |
-
2012
- 2012-11-14 CN CN2012104551555A patent/CN102944471A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201251533Y (en) * | 2008-09-04 | 2009-06-03 | 浙江土工仪器制造有限公司 | Block compression testing machine |
| CN201689015U (en) * | 2010-03-31 | 2010-12-29 | 无锡建仪仪器机械有限公司 | Constant-loading pressure tester |
| CN202916149U (en) * | 2012-11-14 | 2013-05-01 | 无锡建仪仪器机械有限公司 | Pressure test machine for steel ball test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021464A (en) * | 2015-06-26 | 2015-11-04 | 苏州洲盛非晶科技有限公司 | Pressure testing machine used for ultracrystalline iron cores |
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Application publication date: 20130227 |