CN202928906U - Hydraulic type measuring head of sclerometer - Google Patents
Hydraulic type measuring head of sclerometer Download PDFInfo
- Publication number
- CN202928906U CN202928906U CN 201220390892 CN201220390892U CN202928906U CN 202928906 U CN202928906 U CN 202928906U CN 201220390892 CN201220390892 CN 201220390892 CN 201220390892 U CN201220390892 U CN 201220390892U CN 202928906 U CN202928906 U CN 202928906U
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- steel ball
- inner cylinder
- oil
- cap
- oil sac
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Abstract
The utility model discloses a hydraulic type measuring head of a sclerometer. The hydraulic type measuring head of the sclerometer comprises a measuring mechanism, a control valve and a relieving valve. The measuring mechanism, the control valve and the relieving valve are arranged in an integral measuring head. The measuring mechanism consists of an oil cylinder cover, an oil sac nut, an inner cylinder cap, an oil sac, an inner cylinder, a steel ball a, a ball body retaining cap, a piston bulb and star-like sealing rings. The oil cylinder cover is arranged on the oil sac, the oil sac nut and the inner cylinder cap are respectively arranged on the left and right sides at the upper end of the oil sac, the inner cylinder is arranged outside the oil sac, the piston bulb is arranged outside the inner cylinder, the steel ball a is arranged at the lowermost end of the piston bulb, the steel ball retaining cap is arranged outside the piston bulb at the steel ball a, and the star-like sealing rings are respectively arranged on the left and right sides corresponding to the lower end of the piston bulb and the bottom end of the inner cylinder. With the adoption of the steel ball as an air pressure or oil connecting mechanism of each key component, poorness or damage to the whole measuring instrument due to abrasion caused by multiple uses before is effectively solved. Meanwhile, the sensitivity and measuring precision of the instrument can be improved.
Description
Technical field
The utility model relates to a kind of measuring head, relates in particular to fluid pressure type sclerometer measuring head.
Background technology
Portable hardometer, it adopts hydraulic principle, relies on manually operated mode to produce the 3000kg test force.The core component of instrument is a small-sized hydraulic system, and a relief valve is arranged in the hydraulic system, is used for preventing overload, and when pressure reached 3000kg, relief valve was open, and pressure will fall.Pressurize three times, allow gauge hand reach 3000kg numerical value three times, be equivalent in the Brinell hardness test about the 3000kg test force regulation of pressurizeing for 15 seconds with this.Unite States Standard (USS) ASTM B110 has stipulated this test method.Sclerometer adopts the 3000kg test force usually, 10mm sintered carbide ball pressure head, but producing the standard Bu Shi impression of duplicate test after the test, test condition meets the regulation of national and foreign standards GB/T231.1, ASTM E10.
Be mainly used in on-the-spot test.This is a kind of portable instrument that can use in the workshop, and is simple to operate, easy to carry, but on-the-spot test large-scale workpiece and needn't taking a sample can be realized detecting by part of large-scale workpiece.Adopt the 3000kg test force, the 10mm ball, the impression of extrusion can accurately reflect the true hardness of the coarse grain materials such as cast iron, cast steel, forging.The at any time duplicate test of permanent impression that stays after the test.According to real Brinell test principle test, identical with desk-top Brinell tester principle, be not the larger scaled value of distortion that other portable instruments (for example Leeb Hardness Tester) obtain.Calibration accuracy is 0.5% of load, and the hardness test precision is identical with desktop computer.The indentation hardness that test obtains can be used the reading microscope reading, also can utilize the highly intelligentized trace system of reading directly to read hardness number.
The employed test component of the measuring head of most of same or similar product adopts fixedly pin type at present, because Multi-step forming has certain wearing and tearing to test component, directly causes the effect of measuring accuracy and test not reach desirable requirement at actual test process.
The utility model content
Provide a kind of fluid pressure type sclerometer test in order to solve the problems of the technologies described above the utility model.
In order to reach technique scheme, the utility model is fluid pressure type sclerometer measuring head, comprises mechanism for testing, operation valve and blowdown valve, and described mechanism for testing, operation valve and blowdown valve are opened in the monoblock measuring head.
Described mechanism for testing is by oil cylinder cover, the oil sac nut, inner cylinder body and cap, oil sac, inner cylinder body, steel ball a, steel ball keeps cap, the piston bulb, the star O-ring seal forms, oil cylinder cover is arranged on the oil sac, the right and left in the oil sac upper end is respectively equipped with oil sac nut and inner cylinder body and cap, inner cylinder body is arranged on outside the oil sac, described piston bulb is arranged on outside the inner cylinder body, be provided with bottom steel ball a at the piston bulb, be outside equipped with steel ball and keep cap being provided with steel ball a place piston bulb, be respectively arranged with star-like O-ring seal at lower end and corresponding position, inner cylinder body bottom the right and left of piston bulb.
Described operation valve is comprised of oil sac nut, inner cylinder body and cap, oil cylinder cover, packing washer, guide rod, steel ball b, pagoda stage clip, described oil sac nut is arranged on inner cylinder body and cap and the oil cylinder cover, be respectively equipped with packing washer in the oil cylinder cover lower end and be connected with the pagoda stage clip of horizontally set with guide rod, be provided with steel ball b at the left end of pagoda stage clip.
Described blowdown valve is comprised of spanner, release screw rod and cap, steel ball c, described spanner is fixedly installed on described release screw rod upper end, be provided with steel ball c in described release screw rod lower end, described and cap is arranged on the junction of described release screw rod connecting test head.
Close blowdown valve, operation boosting-rod to-and-fro movement meeting drives the pressure head displacement body in the hydraulic pump, and when reaching 3000Kg power, operation valve can be opened moment, and pressure can return and fall; Open blowdown valve, the read test value.
The beneficial effects of the utility model are: adopt steel ball as the bindiny mechanism of the air pressure of each critical component or oil, effectively solved in the past the wearing and tearing that cause because repeatedly use, cause bad for whole testing tool or damage.Sensitivity and the measuring accuracy of instrument have been improved simultaneously.
Description of drawings
Fig. 1 is mechanism for testing structural drawing of the present utility model;
Fig. 2 is operation valve structural drawing of the present utility model;
Fig. 3 is pressure-release valve structural drawing of the present utility model;
Among the figure:
1, oil cylinder cover 2, oil sac nut 3, inner cylinder body and cap 4, oil sac 5, inner cylinder body 6, steel ball a 7, steel ball keep cap 8, piston bulb 9, star O-ring seal 10, oil sac nut 11, inner cylinder body and cap 12, oil cylinder cover 13, packing washer 14, guide rod 15, steel ball b 16, pagoda stage clip 17, spanner 18, release screw rod 19 and cap 20, steel ball c
Embodiment
Below with reference to the accompanying drawings 1,, accompanying drawing 2 and 3 pairs of the utility model of accompanying drawing do and specify, fluid pressure type sclerometer measuring head comprises mechanism for testing 21, operation valve 22 and blowdown valve 23, mechanism for testing, operation valve and blowdown valve are opened in the monoblock measuring head; Mechanism for testing is by oil cylinder cover 1, oil sac nut 2, inner cylinder body and cap 3, oil sac 4, inner cylinder body 5, steel ball a6, steel ball keeps cap 7, piston bulb 8, star O-ring seal 9 forms, oil cylinder cover is arranged on the oil sac, the right and left in the oil sac upper end is respectively equipped with oil sac nut and inner cylinder body and cap, inner cylinder body is arranged on outside the oil sac, the piston bulb is arranged on outside the inner cylinder body, be provided with bottom steel ball a at the piston bulb, be outside equipped with steel ball and keep cap being provided with steel ball a place piston bulb, be respectively arranged with star-like O-ring seal at lower end and corresponding position, inner cylinder body bottom the right and left of piston bulb.
Operation valve is comprised of oil sac nut 10, inner cylinder body and cap 11, oil cylinder cover 12, packing washer 13, guide rod 14, steel ball b15, pagoda stage clip 16, the oil sac nut is arranged on inner cylinder body and cap and the oil cylinder cover, be respectively equipped with packing washer in the oil cylinder cover lower end and be connected with the pagoda stage clip of horizontally set with guide rod, be provided with steel ball b at the left end of pagoda stage clip; Blowdown valve is comprised of spanner 17, release screw rod 18 and cap 19, steel ball c20, and spanner is fixedly installed on release screw rod upper end, be provided with steel ball c in release screw rod lower end, and cap is arranged on the junction of release screw rod connecting test head.
Close blowdown valve, operation boosting-rod to-and-fro movement meeting drives the pressure head displacement body in the hydraulic pump, and when reaching 3000Kg power, operation valve can be opened moment, and pressure can return and fall; Open blowdown valve, the read test value.
Effectively solved and adopted steel ball as the bindiny mechanism of the air pressure of each critical component or oil, effectively solved in the past the wearing and tearing that cause because repeatedly use, caused bad for whole testing tool or damage.Sensitivity and the measuring accuracy of instrument have been improved simultaneously.
Claims (4)
1. fluid pressure type sclerometer measuring head comprises mechanism for testing, operation valve and blowdown valve, it is characterized in that: described mechanism for testing, operation valve and blowdown valve are opened in the monoblock measuring head.
2. mechanism for testing according to claim 1, it is characterized in that: described mechanism for testing is by oil cylinder cover, the oil sac nut, inner cylinder body and cap, oil sac, inner cylinder body, steel ball a, steel ball keeps cap, the piston bulb, the star O-ring seal forms, oil cylinder cover is arranged on the oil sac, the right and left in the oil sac upper end is respectively equipped with oil sac nut and inner cylinder body and cap, inner cylinder body is arranged on outside the oil sac, described piston bulb is arranged on outside the inner cylinder body, be provided with bottom steel ball a at the piston bulb, be outside equipped with steel ball and keep cap being provided with steel ball a place piston bulb, be respectively arranged with star-like O-ring seal at lower end and corresponding position, inner cylinder body bottom the right and left of piston bulb.
3. operation valve according to claim 1, it is characterized in that: described operation valve is comprised of oil sac nut, inner cylinder body and cap, oil cylinder cover, packing washer, guide rod, steel ball b, pagoda stage clip, described oil sac nut is arranged on inner cylinder body and cap and the oil cylinder cover, be respectively equipped with packing washer in the oil cylinder cover lower end and be connected with the pagoda stage clip of horizontally set with guide rod, be provided with steel ball b at the left end of pagoda stage clip.
4. blowdown valve according to claim 1, it is characterized in that: described blowdown valve is comprised of spanner, release screw rod and cap, steel ball c, described spanner is fixedly installed on described release screw rod upper end, be provided with steel ball c in described release screw rod lower end, described and cap is arranged on the junction of described release screw rod connecting test head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390892 CN202928906U (en) | 2012-08-07 | 2012-08-07 | Hydraulic type measuring head of sclerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220390892 CN202928906U (en) | 2012-08-07 | 2012-08-07 | Hydraulic type measuring head of sclerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202928906U true CN202928906U (en) | 2013-05-08 |
Family
ID=48218858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220390892 Expired - Fee Related CN202928906U (en) | 2012-08-07 | 2012-08-07 | Hydraulic type measuring head of sclerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202928906U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612269A (en) * | 2017-10-25 | 2018-01-19 | 哈尔滨工业大学 | Hydraulic drive TRT based on vibration |
| CN112557226A (en) * | 2021-02-26 | 2021-03-26 | 迪赛福测量技术(江苏)有限公司 | Pre-compression hardness tester with lifting test bed |
| CN113866036A (en) * | 2021-10-23 | 2021-12-31 | 沈阳天星试验仪器股份有限公司 | Electro-hydraulic Brinell hardness testing head and electro-hydraulic portable Brinell hardness tester |
-
2012
- 2012-08-07 CN CN 201220390892 patent/CN202928906U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612269A (en) * | 2017-10-25 | 2018-01-19 | 哈尔滨工业大学 | Hydraulic drive TRT based on vibration |
| CN112557226A (en) * | 2021-02-26 | 2021-03-26 | 迪赛福测量技术(江苏)有限公司 | Pre-compression hardness tester with lifting test bed |
| CN112557226B (en) * | 2021-02-26 | 2021-05-11 | 迪赛福测量技术(江苏)有限公司 | Pre-compression hardness tester with lifting test bed |
| CN113866036A (en) * | 2021-10-23 | 2021-12-31 | 沈阳天星试验仪器股份有限公司 | Electro-hydraulic Brinell hardness testing head and electro-hydraulic portable Brinell hardness tester |
| CN113866036B (en) * | 2021-10-23 | 2022-11-25 | 沈阳天星试验仪器股份有限公司 | Electro-hydraulic Brinell hardness testing head and electro-hydraulic portable Brinell hardness tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 201318 Shanghai city Pudong New Area Jian Yun Road No. 618 Patentee after: Shanghai Aolong Xingdi Testing Instrument Co., Ltd. Address before: 201315 Shanghai city Pudong New Area Kang An Road No. 608 Patentee before: Shanghai Aolong Xingdi Testing Instrument Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Shanghai Aolong Xingdi Testing Instrument Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20170807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |