CN202141655U - Initial test force loading device for double-Rockwell-hardness-tester - Google Patents
Initial test force loading device for double-Rockwell-hardness-tester Download PDFInfo
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- CN202141655U CN202141655U CN201120245837U CN201120245837U CN202141655U CN 202141655 U CN202141655 U CN 202141655U CN 201120245837 U CN201120245837 U CN 201120245837U CN 201120245837 U CN201120245837 U CN 201120245837U CN 202141655 U CN202141655 U CN 202141655U
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- lever
- force value
- auxiliary force
- rockwell
- main lever
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Abstract
An initial test force loading device for a double-Rockwell-hardness-tester comprises a main lever. One end of the main lever is arranged on the supporting point in the machine frame, an auxiliary force value lever is arranged on the upper side of the main lever, one end of the auxiliary force value lever is also arranged on the supporting point, a switch arm is arranged in the machine frame and located under the middle section of the auxiliary force value lever. Load of 3 kg is arranged on the main lever, and load of 7 kg is arranged on the auxiliary force value lever. When Rockwell hardness is measured, the switch arm is rotated to be separated from the auxiliary force value lever, the auxiliary force value lever directly acts on the main lever which produces overlaid initial test force. When surface Rockwell hardness is measured, the switch arm is rotated to enable one end of the switch arm to support the auxiliary force value lever, the auxiliary force value lever is separated from the main lever, and the main lever independently provides the initial test force. The initial test force loading device adopts the main lever and the auxiliary force value lever to achieve two kinds of initial test force of measuring of the Rockwell hardness and the surface Rockwell hardness, is convenient to adjust and stable in force value.
Description
Technical field
The utility model relates to mechanical field, relates in particular to the testing material hardness device, particularly two Rockwell hardometeres, and concrete is a kind of first test force loading device that is used for two Rockwell hardometeres.
Background technology
Two Rockwell hardometeres are a kind of instruments that can carry out rockwell hardness measurement and surface rockwell hardness measurement.In the process of rockwell hardness measurement and surface rockwell hardness measurement, all need the step of test power, loading master trip power, unloading master trip power, the first test power of maintenance and the first test power of unloading just of process loading successively.The first test power of measuring Rockwell's hardness is 10 kilograms, and the first test power of surface measurements Rockwell's hardness is 3 kilograms.In the prior art,, in sclerometer, adopted cluster spring in order to realize the switching of test power between 10 kilograms and 3 kilograms just.Cluster spring is made up of the spring of 7 kilograms of elastic force and the spring fit of 3 kilograms of elastic force; When measuring Rockwell's hardness, the spring of the spring of 7 kilograms of elastic force and 3 kilograms of elastic force acts on the stressed support simultaneously, therefore can obtain 10 kilograms first test power; At the surface measurements Rockwell's hardness time; Utilize a swing arm to raise the spring of 7 kilograms of elastic force, the spring of 7 kilograms of elastic force and stressed support are broken away from, on stressed support, just have only the spring action of 3 kilograms of elastic force like this.But, just after each switching of test power between 10 kilograms and 3 kilograms, all needing compression distance and the power value of regulating spring, adjustment is very time-consuming, and the elastic force of spring is along with change service time, power value instability.
Summary of the invention
The purpose of the utility model is to provide a kind of first test force loading device that is used for two Rockwell hardometeres, and the described this first test force loading device that is used for two Rockwell hardometeres will solve the two Rockwell hardometeres of prior art and adopt cluster spring to load that adjustment in the first test power technology is time-consuming, power is worth unsettled technical matters.
This first test force loading device that is used for two Rockwell hardometeres of the utility model; Comprise a frame and a main lever, wherein, be provided with a fulcrum in the described frame; One end of described main lever is arranged on the described fulcrum; The upside of main lever is provided with an auxiliary force value lever, and an end of described auxiliary force value lever also is arranged on the described fulcrum, is provided with a transition arm fulcrum in the frame; Described transition arm fulcrum is provided with a transition arm, and described transition arm is positioned at the below in the stage casing of auxiliary force value lever.
Further, the other end of described auxiliary force value lever is provided with a protuberance, and the protrusion direction of described protuberance is perpendicular to the length direction of auxiliary force value lever, and protuberance is positioned at the top of main lever.
Further, described transition arm has two stop places, and on the position therein, an end of transition arm supports auxiliary force value lever, and on another position therein, a described end of transition arm breaks away from auxiliary force value lever.
Further, described transition arm is provided with a turning knob.
Further, main lever is provided with 3 kilograms of load, and auxiliary force value lever is provided with 7 kilograms of load.
The principle of work of the utility model is: when measuring Rockwell's hardness, rotate transition arm, itself and auxiliary force value lever are broken away from, auxiliary force value lever acts directly on the main lever, and main lever produces test power at the beginning of 10 kilograms after superposeing.When the surface measurements Rockwell's hardness, rotate transition arm, make the one of which end support auxiliary force value lever, auxiliary force value lever and main lever break away from, and main lever provides 3 kilograms first test power separately.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model adopts main lever and auxiliary force value lever to realize test power at the beginning of required two kinds of measurement Rockwell's hardness and surface rockwell hardness, and is simple and reliable for structure, easy to adjust, force value stabilization.
Description of drawings
Fig. 1 is the structural representation of the first test force loading device that is used for two Rockwell hardometeres of the utility model.
Embodiment
Embodiment 1
As shown in Figure 1, the first test force loading device that is used for two Rockwell hardometeres of the utility model comprises a frame 1 and a main lever 2; Wherein, Be provided with a fulcrum 3 in the described frame 1, an end of described main lever 2 is arranged on the described fulcrum 3, and the upside of main lever 2 is provided with an auxiliary force value lever 4; One end of described auxiliary force value lever 4 also is arranged on the described fulcrum; Be provided with a transition arm fulcrum in the frame 1, described transition arm fulcrum is provided with a transition arm 5, and described transition arm 5 is positioned at the below in the stage casing of auxiliary force value lever 4.
Further, the other end of described auxiliary force value lever 4 is provided with a protuberance, and the protrusion direction of described protuberance is perpendicular to the length direction of auxiliary force value lever 4, and protuberance is positioned at the top of main lever 2.
Further, described transition arm 5 has two stop places, and on the position therein, an end of transition arm 5 supports auxiliary force value lever 4, and on another position therein, an end of transition arm 5 breaks away from auxiliary force value lever 4.
Further, described transition arm 5 is provided with a turning knob 6.
Further, main lever 2 is provided with 3 kilograms of load, and auxiliary force value lever 4 is provided with 7 kilograms of load.
The course of work of present embodiment is: when measuring Rockwell's hardness, rotate transition arm 5, itself and auxiliary force value lever 4 are broken away from, auxiliary force value lever 4 acts directly on the main lever 2, test power at the beginning of the main lever 2 produce after superposeing 10 kilograms.When the surface measurements Rockwell's hardness, rotate transition arm 5, make the one of which end support auxiliary force value lever 4, auxiliary force value lever 4 breaks away from main lever 2, and main lever 2 provides 3 kilograms first test power separately.
Claims (5)
1. first test force loading device that is used for two Rockwell hardometeres; Comprise a frame and a main lever; It is characterized in that: be provided with a fulcrum in the described frame, an end of described main lever is arranged on the described fulcrum, and the upside of main lever is provided with an auxiliary force value lever; One end of described auxiliary force value lever also is arranged on the described fulcrum; Be provided with a transition arm fulcrum in the frame, described transition arm fulcrum is provided with a transition arm, and described transition arm is positioned at the below in the stage casing of auxiliary force value lever.
2. the first test force loading device that is used for two Rockwell hardometeres as claimed in claim 1; It is characterized in that: the other end of described auxiliary force value lever is provided with a protuberance; The protrusion direction of described protuberance is perpendicular to the length direction of auxiliary force value lever, and protuberance is positioned at the top of main lever.
3. the first test force loading device that is used for two Rockwell hardometeres as claimed in claim 1; It is characterized in that: described transition arm has two stop places; On the position therein; One end of transition arm supports auxiliary force value lever, and on another position therein, a described end of transition arm breaks away from auxiliary force value lever.
4. the first test force loading device that is used for two Rockwell hardometeres as claimed in claim 1, it is characterized in that: described transition arm is provided with a turning knob.
5. the first test force loading device that is used for two Rockwell hardometeres as claimed in claim 1, it is characterized in that: main lever is provided with 3 kilograms of load, and auxiliary force value lever is provided with 7 kilograms of load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245837U CN202141655U (en) | 2011-07-13 | 2011-07-13 | Initial test force loading device for double-Rockwell-hardness-tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120245837U CN202141655U (en) | 2011-07-13 | 2011-07-13 | Initial test force loading device for double-Rockwell-hardness-tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141655U true CN202141655U (en) | 2012-02-08 |
Family
ID=45552710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120245837U Expired - Fee Related CN202141655U (en) | 2011-07-13 | 2011-07-13 | Initial test force loading device for double-Rockwell-hardness-tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141655U (en) |
-
2011
- 2011-07-13 CN CN201120245837U patent/CN202141655U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |