CN212275425U

CN212275425U - Polymer carbon fiber strength testing device

Info

Publication number: CN212275425U
Application number: CN202020351012.XU
Authority: CN
Inventors: 李远平
Original assignee: Nanjing Sanjia Silver Biological Medicine Science And Technology Co ltd
Current assignee: Nanjing Sanjia Silver Biological Medicine Science And Technology Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-01-01
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a high polymer carbon fiber strength testing device, which comprises a back clamping block and a front clamping block arranged at the front side of the back clamping block, wherein the back clamping block is a rectangular block, the front side of the rectangular block is provided with a back clamping groove, the front clamping block is a rectangular block, the back side surface of the front clamping block is provided with a front clamping groove, the back clamping groove and the front clamping groove are provided with carbon fiber winding rods, the back clamping block and the front clamping block are fixed by fixing bolts, the carbon fiber winding rods are arranged, and the rod body is provided with a carbon fiber winding groove, when the carbon fiber strength is tested, two ends of a carbon fiber can be respectively wound and fixed along the carbon fiber winding groove and clamped by the front clamping block and the back clamping block, thereby the contact area of the carbon fiber and a clamping mechanism is increased, the clamping force of the clamping device is reduced, and the stress of the cross section unit area of the carbon fiber is reduced, thereby avoiding the influence of overlarge clamping force on the radial stress of the carbon fiber yarns.

Description

Polymer carbon fiber strength testing device

Technical Field

The utility model particularly relates to a polymer carbon fiber strength testing arrangement.

Background

The carbon fiber is a special fiber composed of carbon elements, belongs to one of inorganic high polymer materials, has the characteristics of high temperature resistance, friction resistance, electric conduction, heat conduction, corrosion resistance and the like, is fibrous and soft in appearance, can be processed into various fabrics, and has high strength and modulus along the fiber axis direction due to the preferred orientation of the graphite microcrystal structure along the fiber axis. The carbon fibers have a low density and thus a high specific strength and a high specific modulus. The carbon fiber is mainly used as a reinforcing material to be compounded with resin, metal, ceramic, carbon and the like to manufacture an advanced composite material.

And carbon fiber all need carry out the test of relapseing to its intensity in research and development or production process, and its both ends need fix when the test, and adopt the bundling usually or adopt anchor clamps to press from both sides tightly to test again at present stage, and folding bending by a wide margin is binded to and too big clamp force can lead to the folding bending of carbon fiber or the local atress that presss from both sides tightly of carbon fiber to receive the influence, thereby influence the measuring accuracy of device, for this the utility model aims to provide a polymer carbon fiber intensity testing arrangement, with the problem of proposing in solving above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a polymer carbon fiber strength testing arrangement to reach the more accurate purpose of measuring carbon fiber strength.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a polymer carbon fiber strength testing arrangement, is including back position clamp splice and the preceding position clamp splice of setting in back position clamp splice front side, back position clamp splice is a rectangular block, and the front side of its rectangular block body is opened and is equipped with back clamp groove, and the last lower extreme in back clamp groove has evenly seted up the mounting hole, the mounting hole is provided with four altogether, preceding position clamp splice is a rectangular block, and preceding clamp groove has been seted up to its rear surface, the bolt hole has been seted up to the last lower extreme in preceding clamp groove, the bolt hole is provided with four altogether, be provided with carbon fiber winding pole in back clamp groove and the preceding clamp groove, and back position clamp splice and preceding position clamp splice pass through fixing bolt and fix.

Preferably, the back clamping blocks and the front clamping blocks are respectively provided with two clamping blocks, and the back clamping blocks are respectively and fixedly installed on a clamping mechanism of the carbon fiber strength testing device.

Preferably, the rear clamping groove and the front clamping groove are long notches with semicircular sections, and the radius of the notches is equal to that of the carbon fiber wire winding rod.

Preferably, a carbon fiber wire winding groove is formed in the rod body of the carbon fiber wire winding rod, the front groove body of the carbon fiber wire winding groove is of a spiral structure, and the last half circle of groove opening is arc-shaped and parallel to the vertical direction.

Preferably, a fixing groove is formed in the front end of the carbon fiber wire winding groove, and a fixing clamp is arranged in the fixing groove.

Preferably, a clamping block is arranged on the rod body of the fixing bolt, the thread structure of the clamping block is arranged on the lower side of the clamping block, and a rotating handle is fixedly welded at the top end of the rod body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the carbon fiber wire winding rod and arranging the carbon fiber wire winding groove on the rod body, when the strength of the carbon fiber wire is tested, two ends of the carbon fiber wire can be respectively wound and fixed along the carbon fiber wire winding groove and clamped by the front clamping block and the rear clamping block, so that the contact area of the carbon fiber wire and the clamping mechanism is increased, the clamping force of the clamping device is reduced, the stress of the unit area of the cross section of the carbon fiber wire is reduced, and the influence of overlarge clamping force on the radial stress of the carbon fiber wire is avoided;

2. and set up the fixed slot through the initiating terminal in carbon fiber silk winding groove to set up the fixation clamp in the notch and carry out the pre-fixing to the tip of carbon fiber silk, thereby make things convenient for the winding work of carbon fiber silk, and to the fixed work of front and back clamp splice.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the rear clamping block of the present invention;

FIG. 3 is a schematic structural view of the front clamping block of the present invention;

FIG. 4 is a schematic view of the carbon fiber winding rod of the present invention;

FIG. 5 is a schematic view of the carbon fiber yarn winding of the present invention;

fig. 6 is a schematic view of the fixing bolt structure of the present invention.

In the figure: the carbon fiber wire clamping device comprises a rear clamping block 1, a front clamping block 2, a rear clamping groove 3, a mounting hole 4, a front clamping groove 5, a bolt hole 6, a carbon fiber wire winding rod 7, a carbon fiber wire winding groove 8, a fixing groove 9, a fixing clamp 10, a fixing bolt 11, a clamping block 12, a rotating handle 13 and a carbon fiber wire 14.

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. 1-6, the present invention provides a technical solution: a high polymer carbon fiber strength testing device comprises a back clamping block 1 and a front clamping block 2 arranged on the front side of the back clamping block 1, wherein the back clamping block 1 is a rectangular block, the front side of the rectangular block is provided with a back clamping groove 3, the upper end and the lower end of the back clamping groove 3 are uniformly provided with four mounting holes 4, the front clamping block 2 is a rectangular block, the back side surface of the front clamping block is provided with a front clamping groove 5, the upper end and the lower end of the front clamping groove 5 are provided with bolt holes 6, the bolt holes are provided with four, carbon fiber wire winding rods 7 are arranged in the back clamping groove 3 and the front clamping groove 5, the back clamping block 1 and the front clamping block 2 are fixed through fixing bolts 11, the carbon fiber wire winding rods 7 are arranged, the carbon fiber wire winding grooves 8 are arranged on the rod body, when the strength of a carbon fiber wire 14 is tested, the two ends of the carbon fiber wire 14 can be respectively wound and fixed along the carbon fiber wire winding grooves 8, and the front and rear clamping blocks are used for clamping, so that the contact area of the carbon fiber wire 14 and the clamping mechanism is increased, and the clamping force of the clamping device is reduced, so that the stress of the unit area of the cross section of the carbon fiber wire is reduced, and the influence of the overlarge clamping force on the radial stress of the carbon fiber wire 14 is avoided.

Furthermore, two rear clamping blocks 1 and two front clamping blocks 2 are arranged, and the rear clamping blocks 1 are respectively and fixedly installed on a clamping mechanism of the carbon fiber strength testing device;

furthermore, the rear clamping groove 3 and the front clamping groove 5 are long notches with semicircular sections, and the radius of the notches is equal to that of the carbon fiber wire winding rod 7, so that the clamping effect of the carbon fiber wire winding rod is ensured;

furthermore, a carbon fiber wire winding groove 8 is formed in a rod body of the carbon fiber wire winding rod 7, a front groove body of the carbon fiber wire winding groove 8 is of a spiral structure, a notch of the last half circle of the carbon fiber wire winding groove is arc-shaped and is parallel to the vertical direction, and the phenomenon that the stress direction of the carbon fiber wire 14 is changed due to the fact that the tail end of the notch is inclined and the measuring result is affected is avoided;

furthermore, a fixing groove 9 is formed in the front end of the carbon fiber wire winding groove 8, a fixing clamp 10 is arranged in the fixing groove 9, the fixing groove 9 is arranged at the starting end of the carbon fiber wire winding groove 8, and the fixing clamp 10 is arranged in the notch to pre-fix the end part of the carbon fiber wire 14, so that the carbon fiber wire 14 can be conveniently wound and the front clamping block and the rear clamping block can be conveniently fixed;

furthermore, a clamping block 12 is arranged on a rod body of the fixing bolt 11, a thread structure of the clamping block 12 is arranged on the lower side of the clamping block 12, a rotating handle 13 is fixedly welded at the top end of the rod body, and the clamping block 12 and the rotating handle 13 are arranged, so that a tester can conveniently fix the front clamping block and the rear clamping block;

the working principle is as follows: during the in-service use, the staff presss from both sides the tip of carbon fiber silk on fixation clamp 10 in fixed slot 9, then twine the both ends of carbon fiber silk 14 respectively in carbon fiber silk winding groove 8 on two carbon fiber silk winding poles 7, after its winding is good, press from both sides tight groove 3 and preceding tight groove 5 with carbon fiber silk winding pole 7 through back position clamp splice 1 and preceding position clamp splice 2 on again and carry out the fixed clamp tight, and fix both through fixing bolt 11, carry out the strength test through carbon fiber silk strength testing device at last can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a polymer carbon fiber strength testing arrangement, is including back position clamp splice (1) and preceding position clamp splice (2) of setting back position clamp splice (1) front side, its characterized in that: the utility model discloses a clamping device for the automobile engine, including back position clamp splice (1), mounting hole (4) have been seted up evenly to the upper and lower end that back clamp splice (3) was pressed from both sides tight groove (3), mounting hole (4) are provided with four altogether to back position clamp splice (1) is a rectangular block, and the front side of its rectangular block body is opened and is equipped with back clamp splice (3), and the upper and lower end of back clamp splice (3) has seted up mounting hole (4), mounting hole (4) are provided with four altogether, preceding position clamp splice (2) are a rectangular block, and preceding clamp splice (5) have been seted up to its rear side surface, bolt hole (6) have been seted up to the upper and lower end in preceding clamp splice (5), the bolt hole is provided with four altogether, be provided with carbon fiber winding pole.

2. The device for testing the strength of the polymeric carbon fiber according to claim 1, wherein: the back clamping blocks (1) and the front clamping blocks (2) are respectively provided with two clamping blocks, and the back clamping blocks (1) are respectively and fixedly installed on a clamping mechanism of the carbon fiber strength testing device.

3. The device for testing the strength of the polymeric carbon fiber according to claim 1, wherein: the rear clamping groove (3) and the front clamping groove (5) are long notches with semicircular sections, and the radiuses of the notches are equal to the radiuses of the carbon fiber wire winding rods (7).

4. The device for testing the strength of the polymeric carbon fiber according to claim 1, wherein: carbon fiber yarn winding groove (8) have been seted up on the body of rod of carbon fiber yarn winding pole (7), the preceding part cell body of carbon fiber yarn winding groove (8) is helical structure, and its last half a circle of notch is circular-arc, and it is parallel with vertical direction.

5. The device for testing the strength of the polymeric carbon fiber according to claim 4, wherein: the front end of the carbon fiber wire winding groove (8) is provided with a fixing groove (9), and a fixing clamp (10) is arranged in the fixing groove (9).

6. The device for testing the strength of the polymeric carbon fiber according to claim 1, wherein: the clamping block (12) is arranged on the rod body of the fixing bolt (11), the thread structure of the clamping block is arranged on the lower side of the clamping block (12), and the rotating handle (13) is fixedly welded at the top end of the rod body.