CN220120608U

CN220120608U - Portable Rockwell hardness tester

Info

Publication number: CN220120608U
Application number: CN202222838110.8U
Authority: CN
Inventors: 张峰俊
Original assignee: Laizhou Huayu Zhongxin Test Instrument Co ltd
Current assignee: Laizhou Huayu Zhongxin Test Instrument Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-12-01
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a portable Rockwell hardness tester, which comprises a permanent magnet jack disk, wherein one end of the permanent magnet jack disk is provided with a permanent magnet jack handle, the other end of the permanent magnet jack disk is provided with a main case, a force value adjusting assembly is inserted into the inner side of the main case, one end of the permanent magnet jack disk, which is far away from the permanent magnet jack handle, is provided with a plurality of connecting blocks, and the connecting blocks are matched with the main case. According to the utility model, the permanent magnet jack magnetic disk is arranged, and the cooperation of the permanent magnet jack handle and the mainframe box is utilized, so that the hardness tester is convenient to fix through single-side permanent magnets, the magnetic switch of the permanent magnet jack magnetic disk is turned on, a workpiece needing to be detected is sucked, and meanwhile, the hardness of the workpiece is detected through the force value adjusting assembly, so that the hardness tester only needs one side to apply force when in use, and the convenience when in use is greatly improved.

Description

Portable Rockwell hardness tester

Technical Field

The utility model relates to the field of durometers, in particular to a portable Rockwell hardness tester.

Background

The Rockwell hardness test is to apply test force to the surface of a tested material twice successively by using a standard pressure head, press the pressure head into the surface of a sample under the action of the test force, and express the hardness according to the difference between the total test force and the initial test force, wherein the Rockwell hardness tester is designed according to the Rockwell hardness test principle, and only one side of the Rockwell hardness tester is required to contact with the sample to test the Rockwell hardness tester, and the measuring head of the Rockwell hardness tester is adsorbed on a steel table by virtue of magnetic force, so that the hardness of the hardness tester is tested, but the conventional hardness tester is complicated to operate when being used each time, and the efficiency when being tested is influenced, so that the portable Rockwell hardness tester is needed.

For example, chinese patent CN212844792U3 discloses a portable sclerometer, including body, rectangular hole, push pedal, circular hole and weight etc. laminating to one side wall face that approaches mutually through two sets of push pedals, make two sets of fixture blocks remove to the one end that keeps away from mutually, the weight slowly slides to the bottom and calculates the removal range of pressure needle, and the result that obtains shows through the display screen, has reached the effect of convenient measurement. But above-mentioned portable sclerometer need be through exerting pressure at the push pedal both ends when using, influenced the convenience of this portable sclerometer when using greatly, and this portable sclerometer is when using to not equidimension's test work piece hardness detection simultaneously, and the test work piece of being inconvenient for is placed and is detected, very big influence the precision when detecting for this portable sclerometer's availability factor is not ideal.

For the problems in the related art, no effective solution has been proposed at present.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a portable Rockwell hardness tester, which aims to overcome the technical problems in the prior art.

For this purpose, the utility model adopts the following specific technical scheme:

the portable Rockwell hardness tester comprises a permanent magnet jack disk, wherein one end of the permanent magnet jack disk is provided with a permanent magnet jack handle, the other end of the permanent magnet jack disk is provided with a main case, and a force value adjusting assembly is inserted into the inner side of the main case.

Further, for the convenience of permanent magnetism jack magnetic disc is convenient for adjust, improves the convenience when using, and the one end that permanent magnetism jack magnetic disc kept away from the permanent magnetism jack handle is provided with a plurality of connecting blocks, and connecting block and mainframe cooperate.

Further, for the mainframe box is convenient for install fixedly to the force value adjustment subassembly, the mainframe box is including setting up the box at permanent magnetism jack magnetic disc one end, and the chamber of placing has been seted up at the middle part of box, and the both sides bottom of placing the chamber all is provided with the connecting hole, and the connecting hole that the connecting hole is close to permanent magnetism jack magnetic disc one end cooperatees with the connecting block, and the top of box alternates and is provided with the afterburning main shaft cover of force value, and the afterburning main shaft cover of force value is connected with placing the chamber, and the bottom of box is provided with the test port.

Further, for the dynamics regulation of the time of the intensity of hardness detection of being convenient for of the force value adjustment subassembly, the force value adjustment subassembly is including vertical interlude at the force value adjustment montant of box top, and the bottom of force value adjustment montant is provided with the horizontal force value display horizontal pole that alternates the chamber of placing.

Further, in order to facilitate the rotation adjustment of the force value adjusting vertical rod, the force value adjusting vertical rod comprises a force value boosting main shaft arranged on the inner side of a force value boosting main shaft sleeve, a handle sleeve is arranged on the outer side of the top of the force value boosting main shaft, a boosting handle is arranged on the top end of the force value boosting main shaft, a gasket is arranged in the middle of the top end of the boosting handle, and a diamond pressure head is arranged at the bottom of the force value boosting main shaft.

Further, for the force value shows the horizontal pole and is convenient for show the force value when detecting the hardness, the force value shows the horizontal pole and includes the setting son and is the force value adjusting block of diamond pressure head below, and force value adjusting block and the afterburning main shaft of force value cooperate, and the one end that the chamber was placed in keeping away from to the force value adjusting block is provided with the force value and shows the table, and the bottom other end of force value adjusting block is provided with the pressure head main shaft, and the bottom of box is run through to the pressure head main shaft bottom, and pressure head main shaft and test port cooperate.

The beneficial effects of the utility model are as follows:

1. through setting up the permanent magnetism jack magnetic disc, utilize the cooperation of permanent magnetism jack handle and mainframe box for the sclerometer is convenient for fix through unilateral permanent magnetism, opens the magnetic force switch of permanent magnetism jack magnetic disc, and it detects to hold the hardness work piece that needs to detect, carries out hardness to the work piece through the regulation of force value subassembly simultaneously, makes this sclerometer afterburning only need one side afterburning when using, has improved the convenience when using greatly.

2. Through setting up the test port, not restricting the test port size, improved the opening of field of vision, be favorable to observing and finding the work piece highest point and be convenient for measure accurately, simultaneously through placing the cooperation of chamber and force value adjustment montant and force value display horizontal pole, be convenient for observe the force value when detecting through force value display table simultaneously for be convenient for carry out custom adjustment and calibration hardness value when detecting the work piece, guarantee to measure more accurate humanization.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a portable Rockwell hardness tester according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a portable Rockwell hardness tester according to an embodiment of the utility model;

FIG. 3 is a schematic illustration of a mainframe box in a portable Rockwell hardness tester according to an embodiment of the utility model;

FIG. 4 is a schematic view of a force value adjusting vertical bar structure of a portable Rockwell hardness tester according to an embodiment of the utility model;

fig. 5 is a schematic view showing the structure of a cross bar according to the embodiment of the present utility model according to the force value display in the portable rockwell hardness scale.

In the figure:

1. a permanent magnet jack disk; 11. a connecting block; 2. a permanent magnet jack handle; 3. a main chassis; 31. a case; 32. a placement cavity; 33. a connection hole; 34. a force value boosting main shaft sleeve; 35. a test port; 4. a force value adjustment assembly; 41. a force value adjusting vertical rod; 411. a force value boosting main shaft; 412. a handle sleeve; 413. a stress application handle; 414. a gasket; 415. a diamond indenter; 42. a force value display cross bar; 421. a force value adjusting block; 422. a force value display table; 423. a pressing head main shaft.

Detailed Description

For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.

According to an embodiment of the present utility model, a portable Rockwell hardness tester is provided.

The portable Rockwell hardness tester according to the embodiment of the utility model, as shown in FIG. 1, comprises a permanent magnet jack disk 1, wherein one end of the permanent magnet jack disk 1 is provided with a permanent magnet jack handle 2, the other end of the permanent magnet jack disk 1 is provided with a main machine box 3, and a force value adjusting component 4 is inserted into the inner side of the main machine box 3.

By means of the technical scheme, through setting up permanent magnetism jack magnetic disc 1, utilize the cooperation of permanent magnetism jack handle 2 and mainframe 3 for the sclerometer is convenient for through unilateral permanent magnetism fixed, opens the magnetic force switch of permanent magnetism jack magnetic disc, holds the work piece that needs to detect hardness, carries out hardness detection to the work piece through the power value adjustment subassembly 4 simultaneously, makes this sclerometer afterburning only need one side afterburning when using, has improved the convenience when using greatly.

As shown in fig. 1 to 5, in one embodiment, for the above-mentioned rotating assembly 2, the permanent magnetic jack disk 1 and the permanent magnetic jack handle 2 form a manual permanent magnetic jack, the manual permanent magnetic jack adopts the modern high-performance Nd-fe-B magnetic material neodymium-iron-boron, so that the volume is smaller, the dead weight is lighter, the holding force is stronger, the residual magnetism is almost zero due to unique magnetic circuit design, the maximum pulling-out force is 2-4 times of the rated lifting force, meanwhile, the manual permanent magnetic jack handle switch is provided with a safety button, the safety button can be operated by one hand, one end far from the permanent magnetic jack handle 2 is provided with a plurality of connecting blocks 11, the connecting blocks 11 are matched with the main case 3, the main case 3 comprises a case body 31 arranged at one end of the permanent magnetic jack disk 1, a placing cavity 32 is opened in the middle of the case body 31, the bottoms of two sides of the placing cavity 32 are provided with connecting holes 33, the connecting hole 33 near one end of the magnetic disk 1 of the permanent magnet jack is matched with the connecting block 11, the top of the box body 31 is inserted with a force value boosting main shaft sleeve 34, the force value boosting main shaft sleeve 34 is connected with the placing cavity 32, the bottom of the box body 31 is provided with a test port 35, the force value adjusting component 4 comprises a force value adjusting vertical rod 41 vertically inserted at the top of the box body 31, three fixed force values are respectively 60kg, 100kg and 150kg for hardness test, the force value is not fixed and can be selected according to the actual situation of a user, the bottom of the force value adjusting vertical rod 41 is provided with a force value display cross rod 42 transversely inserted in the placing cavity 32, the force value adjusting vertical rod 41 comprises a force value boosting main shaft 411 arranged at the inner side of the force value boosting main shaft sleeve 34, the outer side of the top of the force value boosting main shaft 411 is provided with a handle sleeve 412, the top of the force value boosting main shaft 411 is provided with a boosting handle 413, the middle of the top of the boosting handle 413 is provided with a gasket 414, the bottom of the force value boosting main shaft 411 is provided with a diamond pressing head 415, the force value display cross rod 42 comprises a force value adjusting block 421 arranged below the diamond pressing head 415, the top of the force value adjusting block 421 is provided with a groove matched with the diamond pressing head 415, the force value adjusting block 421 is matched with the force value boosting main shaft 411, one end of the force value adjusting block 421 far away from the placing cavity 32 is provided with a force value display table 422, the other end of the bottom of the force value adjusting block 421 is provided with a pressing head main shaft 423, the bottom of the pressing head main shaft 423 penetrates through the bottom of the box 31, and the pressing head main shaft 423 is matched with the test port 35. The size of the test port 35 is not limited by arranging the test port 35, the visual field is widened, the highest point of a workpiece is conveniently and accurately measured by being conveniently observed and found, meanwhile, the force value during detection is conveniently observed through the force value display table 422 by being matched with the placing cavity 32, the force value adjusting vertical rod 41 and the force value display cross rod 42, the user-defined adjustment and the hardness value calibration are conveniently carried out during detection of the workpiece, and the measurement is more accurate and humanized.

Specifically, the method for detecting the Rockwell hardness in the utility model uses an initial test force F0 to vertically press the pressure head into the surface of a sample, then applies a main test force, uses a total test force F0+F1 to press in and keep for a period of time, removes the main test force, keeps the initial test force, has a linear relation with the Rockwell hardness value of the material between the difference of the indentation depth and the indentation depth before the main test force is applied after the main test force is applied, represents a Rockwell hardness scale after every 2 mu m indentation depth difference on the Rockwell hardness scale, and uses a standard pressure head to apply test force to the surface of the tested material twice successively, and uses the difference between the indentation depth under the total test force and the indentation depth under the initial test force to represent the hardness, the larger the residual indentation depth value is, the lower the hardness value is, and vice versa.

In order to facilitate understanding of the above technical solutions of the present utility model, the following describes in detail the working principle or operation manner of the present utility model in the actual process.

In practical application, a workpiece needing hardness detection is selected, the workpiece is placed at the bottom of the test port 35, a magnetic switch of the permanent magnet jack disk 1 is turned on by adjusting the permanent magnet jack handle 2, the workpiece needing hardness detection is sucked, the grinding and cutting transmission of the vertical force value adjusting rod 41 and the force value adjusting block 421 are changed by the vertical force value adjusting rod 41, the force value during detection is adjusted, the force value is observed through the force value display table 422 after detection, meanwhile, when the hardness of a nonmetallic workpiece is detected, the workpiece needing detection is placed by selecting a proper platform, the workpiece is moved to the bottom of the test port 35, and then the hardness detection is carried out according to the steps.

In addition, the portable Rockwell hardness tester can detect the hardness of the workpiece according to the condition of the workpiece, and can detect the hardness of an assembled large-sized workpiece, a small-sized workpiece, a special-shaped workpiece, a round shaft and the like which are not cut and are inconvenient to move, so that the efficiency of the portable Rockwell hardness tester for detecting the hardness of the workpiece is improved.

In summary, by means of the technical scheme of the utility model, through arranging the permanent magnet jack magnetic disk 1 and utilizing the cooperation of the permanent magnet jack handle 2 and the mainframe box 3, the hardness tester is convenient to fix through single-side permanent magnets, the magnetic switch of the permanent magnet jack magnetic disk 1 is turned on, a workpiece needing to be detected is sucked, and meanwhile, the hardness of the workpiece is detected through the force value adjusting assembly 4, so that the hardness tester only needs to apply force on one side when in use, and the convenience when in use is greatly improved.

In addition, through setting up test port 35, not restricting the size of test port 35, improved the opening of visual field, be favorable to observing and finding the work piece highest point and be convenient for measure accurately, simultaneously through placing the cooperation of chamber 32 and force value adjustment montant 41 and force value display horizontal pole 42, be convenient for observe the force value when detecting through force value display table 422 simultaneously for be convenient for carry out custom adjustment and calibration hardness value when detecting the work piece, guarantee to measure more accurate humanizedly.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a portable Rockwell hardness tester, includes permanent magnetism jack disc (1), its characterized in that, one end of permanent magnetism jack disc (1) is provided with permanent magnetism jack handle (2), the other end of permanent magnetism jack disc (1) is provided with mainframe box (3), the inboard interlude of mainframe box (3) is provided with powerful value adjustment subassembly (4).

2. The portable Rockwell hardness tester according to claim 1, wherein one end of the permanent magnet jack disc (1) far away from the permanent magnet jack handle (2) is provided with a plurality of connecting blocks (11), and the connecting blocks (11) are matched with the mainframe box (3).

3. The portable Rockwell hardness tester according to claim 2, wherein the main case (3) comprises a case body (31) arranged at one end of the permanent magnet jack disk (1), a placing cavity (32) is formed in the middle of the case body (31), connecting holes (33) are formed in the bottoms of two sides of the placing cavity (32), and the connecting holes (33) close to one end of the permanent magnet jack disk (1) are matched with the connecting blocks (11);

the top of box (31) alternates and is provided with power value afterburning main shaft cover (34), just power value afterburning main shaft cover (34) with place chamber (32) and be connected, the bottom of box (31) is provided with test port (35).

4. A portable rockwell hardness machine according to claim 3, wherein the force-value adjusting assembly (4) comprises a force-value adjusting vertical rod (41) vertically inserted into the top of the box body (31), and a force-value displaying cross rod (42) transversely inserted into the placing cavity (32) is arranged at the bottom of the force-value adjusting vertical rod (41).

5. The portable rockwell hardness tester according to claim 4, wherein the force value adjusting vertical rod (41) comprises a force value boosting main shaft (411) arranged on the inner side of the force value boosting main shaft sleeve (34), a handle sleeve (412) is arranged on the outer side of the top of the force value boosting main shaft (411), a boosting handle (413) is arranged at the top end of the force value boosting main shaft (411), a gasket (414) is arranged in the middle of the top end of the boosting handle (413), and a diamond pressing head (415) is arranged at the bottom of the force value boosting main shaft (411).

6. The portable rockwell hardness machine according to claim 5, wherein the force value display cross bar (42) includes a force value adjustment block (421) disposed below the diamond indenter (415), and the force value adjustment block (421) is matched with the force value stressing spindle (411), one end of the force value adjustment block (421) away from the placement cavity (32) is provided with a force value display table (422), and the other end of the bottom of the force value adjustment block (421) is provided with an indenter spindle (423).

7. The portable rockwell hardness machine according to claim 6, wherein the bottom of the ram spindle (423) extends through the bottom of the case (31), and the ram spindle (423) mates with the test port (35).