CN2391192Y - Reinforced hardometer - Google Patents
Reinforced hardometer Download PDFInfo
- Publication number
- CN2391192Y CN2391192Y CN 99239554 CN99239554U CN2391192Y CN 2391192 Y CN2391192 Y CN 2391192Y CN 99239554 CN99239554 CN 99239554 CN 99239554 U CN99239554 U CN 99239554U CN 2391192 Y CN2391192 Y CN 2391192Y
- Authority
- CN
- China
- Prior art keywords
- fuselage
- small lever
- lever mechanism
- hardometer
- reinforced
- 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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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an apparatus which is used for measuring the hardness of a metal material. The utility model is characterized in that a machine base and an upright post of the machine body of the existing hardometer are respectively provided with a reinforcing rib, the cross section of a lever of a small lever mechanism is formed into a hollow cavity shape, and simultaneously, micrometric regulating screws which are arranged on the small lever mechanism are riveted with contact points of a main shaft by steel balls. Because the hardometer adopts the technical proposal, the accuracy and the stability of the hardometer can be improved.
Description
The utility model relates to a kind of instrument of measuring metal material hardness.
At present, the sclerometer that the mensuration medium hardness that the public uses is above, as 3R type hardness tester meter, its parts are installed on the fuselage, and fuselage is scleroscopic basic components.But existing this type of scleroscopic fuselage all adopts cast member, and the casting mold cavity wall is thinner, and when measuring hard test specimen, the highest test force can reach more than 1400 newton, and cause measuring accuracy to descend because the fuselage insufficient strength can cause microdeformation this moment.In addition, small lever is a solid casting, and is comparatively heavy, directly influences the sensitivity of instrument; The small lever micrometer adjusting screw is taked the cut moulding, owing to need heat-treat, wedge angle melts easily, is difficult to guarantee measuring accuracy.
The purpose of this utility model provides a kind of sclerometer that can effectively improve instrument test precision and stability.
The reinforced sclerometer that the utility model provides, adjusting mechanism that comprises fuselage, is installed in worktable on the fuselage, is made up of counterweight, load lever etc. and the small lever mechanism that is made up of hardness indicating gauge, micrometer adjusting screw etc. are respectively equipped with reinforcement on the support of fuselage and column; The lever cross section of small lever mechanism is a cavity shape.
The micrometer adjusting screw in the utility model small lever mechanism and the contact point of main shaft adopt circular steel ball; And the axis hole of the little axle that small lever mechanism is connected with fuselage adopts edge to join axle sleeve to substitute former monoblock type.
Adopted the sclerometer of technique scheme, good stability compares test through adopting standard hardness experiment piece, and measuring accuracy also improves greatly.
The utility model will be further described below in conjunction with accompanying drawing (embodiment).
Fig. 1 is an one-piece construction front schematic view of the present utility model.
Fig. 2 is the front cut-away view of the utility model fuselage.
Fig. 3 is the upward view of fuselage shown in Figure 2.
Fig. 4 is the synoptic diagram of small lever mechanism.
Fig. 5 is the local A-A synoptic diagram of small lever shown in Figure 4 mechanism.
As shown in Figure 1, the utility model adjusting mechanism that comprises fuselage 6, be installed in worktable 8 on the fuselage 6, form by counterweight 5, load lever 4 etc. and the small lever mechanism that forms by hardness indicating gauge 1, micrometer adjusting screw 15 etc.For overcoming the microdeformation that causes owing to external force, guarantee the measuring accuracy of instrument, on support, be provided with reinforcement 10 and 11, on the column of fuselage, be provided with reinforcement 12 (referring to Fig. 2).The structural representation of small lever mechanism as shown in Figure 4, small lever is connected on the fuselage 6 by little axle 16 and bearing 18, its head is equipped with depression bar 13, by the displacement control hardness indicating gauge 1 of depression bar 13.Workpiece for measurement 9 places on the worktable 8, turning handle 7, and worktable moves up.When workpiece 9 contacted with main shaft 3, main shaft 3 was moved up by the top, and with on 15 tops of the micrometer adjusting screw on the lever, make small lever assembly 2 produce certain displacement, this moment, the depression bar 13 of mechanism's head moved, and indicating gauge 1 pointer is changed, and new reading is the hardness number of workpiece.Small lever is the micro-adjusting mechanism of lever ratio, and it guarantees its measuring accuracy with 13: 5 ratio, so the sensitivity of small lever and degree of accuracy directly influence the reading of indicating gauge, i.e. measured value.The utility model is removed the interior cavity material of small lever, and promptly its cross section is a cavity shape, has not only alleviated the weight of mechanism, and has improved mechanism's reaction sensitivity.
For further improving scleroscopic measuring accuracy, the micrometer adjusting screw 15 in the utility model small lever mechanism adopts the mode of the circular steel ball 16 of riveted joint, substitutes cutting wedge angle of the prior art, has simplified processing technology, thereby has improved the sensitivity and the precision of mechanism.The little axle that small lever of the present utility model mechanism is connected with fuselage connects axis hole and adopts edge to join axle sleeve, promptly substitutes former all-in-one-piece structures with copper sheathing 17, has both simplified processing technology, has improved scleroscopic degree of accuracy and stability again.The sclerometer that the utility model provides can comprise hard slim steel in order to measure the metal that hardness surpasses HRC70, also can measure softer or medium-hard metal simultaneously, and without the steel part that quenches.
Claims (3)
1. reinforced sclerometer, adjusting mechanism that comprises fuselage (6), is installed in worktable (8) on the fuselage (6), forms by counterweight (5), load lever (4) etc. and the small lever mechanism that forms by hardness indicating gauge (1), micrometer adjusting screw (15) etc., it is characterized in that: on the support of fuselage (6) and column, be respectively equipped with reinforcement (10,11,12); The lever cross section of small lever mechanism is a cavity shape.
2. reinforced sclerometer according to claim 1 is characterized in that: the micrometer adjusting screw (15) in the described small lever mechanism is circular steel ball (14) with the contact point of main shaft (3).
3. reinforced sclerometer according to claim 1 and 2 is characterized in that: the axis hole of the little axle (16) that small lever mechanism is connected with fuselage is joined axle sleeve (17) for edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239554 CN2391192Y (en) | 1999-09-07 | 1999-09-07 | Reinforced hardometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99239554 CN2391192Y (en) | 1999-09-07 | 1999-09-07 | Reinforced hardometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391192Y true CN2391192Y (en) | 2000-08-09 |
Family
ID=34026789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99239554 Expired - Fee Related CN2391192Y (en) | 1999-09-07 | 1999-09-07 | Reinforced hardometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391192Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247004A (en) * | 2017-06-12 | 2017-10-13 | 浙江农林大学 | Hardness of wood measuring instrument |
-
1999
- 1999-09-07 CN CN 99239554 patent/CN2391192Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107247004A (en) * | 2017-06-12 | 2017-10-13 | 浙江农林大学 | Hardness of wood measuring instrument |
| CN107247004B (en) * | 2017-06-12 | 2019-06-28 | 浙江农林大学 | Hardness of wood measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Xiangpai Machinery Co., Ltd., Jiangsu Document name: payment instructions |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |