CN217717239U

CN217717239U - Transmission device of indentation hardness tester

Info

Publication number: CN217717239U
Application number: CN202221667236.7U
Authority: CN
Inventors: 李彦武; 张威; 车长盛
Original assignee: Jilin Huabo Science And Technology Industry Co ltd
Current assignee: Jilin Huabo Science And Technology Industry Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-01
Anticipated expiration: 2032-06-29

Abstract

The utility model relates to a transmission of indentation sclerometer relates to test equipment technical field, and the measured piece of having solved among the prior art has a position change at the measured in-process, and leads to the not accurate technical problem of measuring result inadequately. The device is technically characterized by comprising a frame, wherein a loading device is arranged on the frame and comprises a pressure rod for applying pressure to a tested piece; the loading device is also provided with an anti-rotation component for preventing the compression bar from rotating. The device has the advantages that the measured part cannot generate position change in the measured process, and the accuracy of the measurement result is ensured.

Description

Transmission device of indentation hardness tester

Technical Field

The utility model relates to a test equipment technical field, in particular to transmission of indentation sclerometer.

Background

The hardness of plastics refers to the ability of a plastic material to resist being pressed into it by another rigid body which is considered to be not elastically and plastically deformed, and the hardness of plastics is determined by the Rockwell hardness of plastics by applying a constant initial load to a steel ball on a test material for a given load time, subsequently applying a main load, and then returning to the same initial load, the measurement being the pressing depth resulting from the elastic recovery and the initial load within a given time after the main load is removed subtracted from the pressing depth, while the Rockwell hardness can be determined by the net increase in pressing depth after the load on the indenter is increased to the main load and then returning to the same initial load.

The loading device in the prior device can cause a slight position change of the measured piece in the process of applying force, and the position change can cause the measuring result to be inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it has a position change to solve the measured piece among the prior art at the measured in-process, and leads to the not accurate enough technical problem of measuring result, provides the transmission of an indentation sclerometer.

In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:

an indentation durometer transmission comprising:

the loading device comprises a frame, a loading device and a control device, wherein the loading device is arranged on the frame and comprises a pressure rod for applying pressure to a tested piece;

the loading device is also provided with an anti-rotation component for preventing the compression bar from rotating.

Further, the frame includes: the base is arranged at the lower end of the frame body, and the cross beam is arranged in the middle of the frame body.

Further, the loading device comprises: the motor drives the working assembly to work through a belt, and the motor is fixedly connected with the frame body.

Further, the work assembly includes: the bearing support is internally embedded with a thrust bearing and is fixedly connected with the cross beam; one end of the driven belt wheel is embedded in the thrust bearing, and the driven belt wheel is connected with the driving belt wheel through a belt; the nut is fixedly connected with the driven belt wheel and is in threaded fit with the pressure lever.

Further, the anti-rotation assembly includes: the anti-rotation device comprises an anti-rotation rod, a linear bearing seat and a connecting plate, wherein one end of the anti-rotation rod is fixedly connected with the cross beam, a linear bearing is embedded in the linear bearing seat, the linear bearing is in sliding fit with the anti-rotation rod, and the linear bearing seat is fixedly connected with the top end of the pressing rod through the connecting plate.

Furthermore, the bottom end of the pressing rod is also provided with a dial indicator, the dial indicator is fixedly connected with the pressing rod through a dial indicator mounting rod, and the bottom end of the pressing rod is spherical.

Furthermore, the loading device further comprises a limiting plate, the limiting plate is fixedly connected with the beam through a plurality of stand columns, and the bottom surface of the limiting plate is located above the driven belt wheel.

The utility model discloses following beneficial effect has:

the utility model discloses a transmission of indentation sclerometer because the depression bar and the friction between the measured piece, the measured piece can be driven by the depression bar and produce small displacement at the in-process of measurand, prevents through setting up the rotation-preventing subassembly, can prevent that the depression bar from rotating, guarantees that the measured piece can not produce position change at the in-process of measurand, has guaranteed measuring result's accuracy.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of a transmission device of an indentation hardness tester of the present invention.

The reference numerals in the figures denote:

1. a frame; 101. a base; 102. a cross beam; 103. a frame body; 2. a loading device; 201. a motor; 202. a belt; 203. a limiting plate; 204. a nut; 205. a pressure lever; 206. a connecting plate; 207. a linear bearing seat; 208. a rotation prevention lever; 209. a driven pulley; 210. a bearing seat; 211. a dial indicator; 212. a dial indicator mounting rod; 3. and (5) a tested piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, an apparatus for driving an indentation hardness tester includes:

the device comprises a frame 1, wherein a loading device 2 is installed on the frame 1, and the loading device 2 comprises a pressure lever 205 for applying pressure to a tested piece 3;

the loading device 2 is also provided with an anti-rotation component for preventing the compression bar 205 from rotating.

The working principle is as follows: the loading device 2 applies pressure to the tested piece 3 through the pressure lever 205, and then the hardness value of the tested piece 3 is measured; due to the friction between the compression bar 205 and the tested piece 3, the tested piece 3 may be driven by the compression bar 205 to generate a small displacement in the process of being measured, and the rotation of the compression bar 205 can be prevented by arranging the rotation-preventing component, so that the tested piece 3 is ensured not to generate position change in the process of being tested, and the accuracy of the measurement result is ensured.

In some embodiments, the frame 1 comprises: the frame comprises a base 101, a frame body 103 and a cross beam 102, wherein the base 101 is arranged at the lower end of the frame body 103, and the cross beam 102 is arranged in the middle of the frame body 103.

In some embodiments, the loading device 2 comprises: motor 201 and work subassembly, the axle fixed mounting of motor 201 has driving pulley, motor 201 passes through belt 202 and drives work subassembly work, motor 201 with frame body 103 fixed connection.

In some embodiments, the work assembly comprises: the device comprises a bearing seat 210, a driven pulley 209, a nut 204 and a pressure lever 205, wherein a thrust bearing is embedded in the bearing seat 210 and is fixedly connected with the cross beam 102; one end of the driven belt pulley 209 is embedded in a thrust bearing, and the driven belt pulley 209 is connected with the driving belt pulley through a belt 202; the nut 204 is fixedly connected with the driven pulley 209 and is in threaded fit with the pressure lever 205.

Specifically, the motor 201 drives the driving pulley to rotate, and drives the driven pulley 209 and the nut 204 to rotate through the belt 202, the rotation of the nut 204 drives the pressing rod 205 to move up and down along the axis thereof, when the device works, the pressing rod 205 moves down and presses the tested piece 3, and after the pressing is finished, the pressing rod 205 moves up; the base 101 provides a mounting platform for the tested piece 3, and the beam 102 provides a mounting platform for the working assembly; through setting up bearing frame 210 and inside reasoning bearing, can guarantee that driven pulley 209 can drive nut 204 free rotation, and prevent that driven pulley 209 and nut 204 from breaking away from the contact with bearing frame 210, guaranteed the normal continuation of work to go on.

In some embodiments, the anti-rotation assembly comprises: the anti-rotation device comprises an anti-rotation rod 208, a linear bearing seat 207 and a connecting plate 206, wherein one end of the anti-rotation rod 208 is fixedly connected with the cross beam 102, a linear bearing is embedded in the linear bearing seat 207, the linear bearing is in sliding fit with the anti-rotation rod 208, and the linear bearing seat 207 is fixedly connected with the top end of the compression rod 205 through the connecting plate 206.

Specifically, in order to prevent the nut 204 from driving the compression bar 205 to rotate, and ensure that the measured 3 pieces cannot generate position change in the measured process, and ensure the accuracy of the measurement result, the anti-rotation component is provided, because the anti-rotation rod 208 is fixedly connected with the cross beam 102, the position of the anti-rotation rod 208 is fixed, and through the fixing action of the linear bearing and the anti-rotation rod 208, the compression bar 205 can be effectively prevented from rotating, the measured 3 pieces cannot generate position change in the measured process, and the accuracy of the measurement result is ensured; the linear bearing is embedded in the linear bearing seat 207, and in the process that the pressure lever 205 moves up and down, the axis bearing can move up and down along the anti-rotation rod 208, so that the pressure lever 205 can move freely, and no additional interference is caused to the pressure lever 205.

In some embodiments, the bottom end of the pressing rod 205 further has a dial indicator 211, the dial indicator 211 is fixedly connected to the pressing rod 205 through a dial indicator mounting rod 212, and the bottom end of the pressing rod 205 is spherical.

Specifically, through setting up percentage table 211, can audio-visual observation or record the pressure people degree of depth of depression bar 205, through the record of the servo of observing percentage table 211 and motor 201 itself, also can realize the purpose of checking each other, guaranteed the measuring accuracy.

In some embodiments, the loading device further includes a limiting plate 203, the limiting plate 203 is fixedly connected to the beam 102 through a plurality of columns, and a bottom surface of the limiting plate 203 is located above the driven pulley 209.

Specifically, the limiting plate 203 is arranged to prevent the driven pulley 209 from being separated from the bearing seat 210, so that the normal and continuous operation is ensured; the limiting plate 203 is fixedly connected with the beam 102 through a plurality of upright posts, and provides a working space for the belt 202.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. An indentation durometer transmission, comprising: the device comprises a frame (1), wherein a loading device is arranged on the frame (1), and the loading device comprises a pressure lever (205) for applying pressure to a tested piece (3);

the loading device is also provided with an anti-rotation component for preventing the compression bar (205) from rotating.

2. An indentation durometer transmission as claimed in claim 1, characterized by the fact that the frame (1) comprises: the frame comprises a base (101), a frame body (103) and a cross beam (102), wherein the base (101) is arranged at the lower end of the frame body (103), and the cross beam (102) is arranged in the middle of the frame body (103).

3. An indentation durometer transmission as claimed in claim 2, wherein the loading means comprises: motor (201) and work subassembly, the axle fixed mounting of motor (201) has driving pulley, motor (201) drive work subassembly work through belt (202), motor (201) with frame body (103) fixed connection.

4. The indenter durometer transmission of claim 3, wherein the working assembly comprises: the device comprises a bearing seat (210), a driven pulley (209), a nut (204) and a pressure lever (205), wherein a thrust bearing is embedded in the bearing seat (210) and is fixedly connected with a cross beam (102); one end of the driven pulley (209) is embedded in the thrust bearing, and the driven pulley (209) is connected with the driving pulley through a belt (202); the nut (204) is fixedly connected with the driven belt wheel (209) and is in threaded fit with the pressure lever (205).

5. The indentation durometer transmission of claim 2, wherein the anti-rotation component includes: the anti-rotation device comprises an anti-rotation rod (208), a linear bearing seat (207) and a connecting plate (206), wherein one end of the anti-rotation rod (208) is fixedly connected with the cross beam (102), a linear bearing is embedded in the linear bearing seat (207), the linear bearing is in sliding fit with the anti-rotation rod (208), and the linear bearing seat (207) is fixedly connected with the top end of the pressure rod (205) through the connecting plate (206).

6. The transmission device of the indentation hardness tester as claimed in claim 1, characterized in that the bottom end of the pressure lever (205) is further provided with a dial indicator (211), the dial indicator (211) is fixedly connected with the pressure lever (205) through a dial indicator mounting rod (212), and the bottom end of the pressure lever (205) is spherical.

7. The transmission device of the indentation hardness tester according to claim 4, characterized in that the loading device further comprises a limiting plate (203), wherein the limiting plate (203) is fixedly connected with the cross beam (102) through a plurality of vertical columns, and the bottom surface of the limiting plate (203) is located above the driven pulley (209).