CN208254939U

CN208254939U - Chain fixture

Info

Publication number: CN208254939U
Application number: CN201820910710.1U
Authority: CN
Inventors: 崔子锋; 刘志; 刘焱权
Original assignee: Guangzhou Rui Spectrum Testing Co Ltd
Current assignee: Guangzhou Rui Spectrum Testing Co Ltd
Priority date: 2018-06-13
Filing date: 2018-06-13
Publication date: 2018-12-18
Anticipated expiration: 2028-06-13

Abstract

The utility model provides a kind of chain fixture, it includes a fixed column and jig main body, for clamping the chain when carrying out chain pull load test and being connect with measurer for pulling force, a limiting slot is provided on its jig main body, the limiting slot includes a closed end, the cambered surface that one open end and an open end are extended, its length of its closed end is matched with the length and width of the first chain link of the chain respectively with width, the matched of open end width and the chain link, movement of first chain link in its direction of pull of the chain can effectively be limited, easily and effectively realize the clamping during drag load is tested to chain；In addition, the closed end and the face of first chain link cooperation are a cambered surface, the open end to far from described fixed column one end extend with the third chain link arc end cooperate face be a cambered surface, it can avoid damage of the drag load test process to chain link, the reliability of guarantee test result and the validity of test.

Description

Chain fixture

Technical field

The utility model relates to a kind of chain test device more particularly to a kind of chain fixtures.

Background technique

Chain is formed by connecting by multiple identical chain links, is carried out tensile test for chain and is often needed to come in fact by fixture Existing, what is used on traditional puller system has netted face or the fixture with convex side, the chain used due to different producers Fixture difference influences the test knot of tensile load because the improper use of fixture will cause the chain link damage being connected with fixture Fruit or test are invalid.

Utility model content

The utility model aim is to provide a kind of chain fixture, and the chain fixture is easy to use, can avoid damage chain Chain link that item is connected with fixture guarantees that drag load test result is rationally effective.

The utility model provides a kind of chain fixture, is used to clamp the chain to be measured when testing chain pull to be measured And connect with drag load experimental rig, the chain fixture includes a jig main body and extends from the jig main body Fixed column, the fixed column are used to connect with the drag load experimental rig, and a limiting slot is provided on the jig main body, The limiting slot includes:

One close to the closed end of the fixed column, which includes the appearance with predetermined length, width and depth Receive slot, length and width is adapted with the length and width of the chain link of the chain to be measured, to be measured for accommodating and limiting this One first chain link of chain, the depth of the holding tank are greater than the width of the chain link of the chain to be measured；And

One open end far from the fixed column, the open end include the notch of the connection holding tank, the height of the notch Degree is not less than the depth of the holding tank, and the width of the notch is adapted with the height of the chain link to be measured, which is used for Accommodate and limit one second chain link of the chain to be measured.

Preferably, the bottom surface of the holding tank is provided with an arc groove at the notch, the arc groove Size and shape is adapted with the arc end of the second chain link of the chain to be measured.

Preferably, the notch is provided with a cambered surface far from the fixed column side, the size and shape of the cambered surface with The arc end of one third chain link of the chain to be measured is adapted.

Preferably, one end that the fixed column is used to connect with the drag load experimental rig is provided with circle protrusion, The protrusion can guarantee that the chain fixture is flexibly connected with drag load experimental rig holding when adjusting chucking position State.

The utility model provides a kind of chain fixture, its length and width of limiting slot closed end on jig main body with to The length and width of the chain link of surveyor's chain item is adapted, and the width of rebate of the open end and the height of the chain link of chain to be measured are mutually fitted Match, can effectively limit the first chain link of chain to be measured in the movement of its direction of pull, easily and effectively realize drag load The clamping of surveyor's chain item is treated during test；In addition, the second of the size and shape of the arc groove and the chain to be measured The arc end of chain link is adapted, the size and shape for the cambered surface that notch is arranged far from the fixed column side with it is described to be measured The arc end of the third chain link of chain is adapted, and be can avoid damage of the drag load test process to chain link, is guaranteed The reliability of test result and the validity of test.

Detailed description of the invention

Fig. 1 is the structural schematic diagram for the chain fixture that the utility model first embodiment provides；

Fig. 2 is the structural schematic diagram of the chain fixture that the utility model first embodiment provides and chain interoperation.

Specific embodiment

The embodiments described below are only the utility model a part of the embodiment, instead of all the embodiments.Base In the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts There are other embodiments, fall within the protection scope of the utility model.

The clamping when testing 4 pulling force of chain to be measured is used for the present embodiment provides a kind of chain fixture with Fig. 2 refering to fig. 1 The chain to be measured 4 is simultaneously connect with drag load experimental rig, and the chain fixture includes a jig main body 3 and from the fixture The fixed column 2 extended in main body 3, the fixed column 2 with the drag load experimental rig for connecting, the jig main body Be provided with a limiting slot on 3, the limiting slot include one close to the closed end of the fixed column and one far from the fixed column Open end, the closed end include a holding tank 31, and the open end includes a notch 32.

The closed end includes the holding tank 31 with predetermined length, width and depth, length and width with to The length and width of the chain link of surveyor's chain item 4 is adapted, and the depth of the holding tank 31 is greater than the width of the chain link of the chain 4 to be measured, The holding tank 31 is used to accommodate one first chain link 41 of the chain 4 to be measured and and limits the pulling force suffered by it of the first chain link 41 The movement in direction；The bottom surface of the holding tank 31 is provided with an arc groove 311, the arc groove at the notch 32 311 size and shape is adapted with the arc end of one second chain link 42 of the chain 4 to be measured, described to surveyor's chain for accommodating One end of second chain link 42 of item 4, and limit swing of second chain link 42 with first chain link 41 for basic point.

The open end includes the notch 32 of the connection holding tank 31, and the height of the notch 32 is not less than the holding tank 31 Depth, the width of the notch 32 is adapted with the height of 4 chain link of chain to be measured, and the notch 32 is described to be measured for accommodating One second chain link 42 of chain 4, and further limit swing of second chain link 42 with first chain link 41 for basic point.

In the present embodiment, the notch 32 is provided with a cambered surface 33, the ruler of the cambered surface 33 far from 2 side of fixed column It is very little to be adapted with shape with the arc end of a third chain link 43 of the chain 4 to be measured；The fixed column 2 is used for and the pulling force One end of load test device connection is provided with a circle protrusion 1, and described raised 1 can guarantee the chain when adjusting chucking position Fixture and the drag load experimental rig keep active connection state.

The utility model provides a kind of chain fixture, limiting slot closed end (not shown) its length on jig main body 3 Be adapted with width with the length and width of the chain link of chain 4 to be measured, 32 width of notch of the open end (not shown) with to The height of the chain link of surveyor's chain item 4 is adapted, and can effectively limit fortune of first chain link 41 in its direction of pull of chain 4 to be measured It is dynamic, easily and effectively realize the clamping that surveyor's chain item 4 is treated in drag load test in the process；In addition, the arc groove 311 Size and shape is adapted with the arc end of the second chain link 42 of the chain 4 to be measured, and the notch 32 is far from the fixed column 2 The size and shape of the cambered surface 33 of side setting are adapted with the arc end of the third chain link 43, can avoid drag load Test process treats the damage of the chain link of surveyor's chain item 4, the reliability of guarantee test result and the validity of test.

Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this Novel interest field, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are contained The range of lid.

Claims

1. a kind of chain fixture is used to clamp the chain to be measured when testing chain pull to be measured and tests with drag load Device connection, the chain fixture include a jig main body and the fixed column extended from the jig main body, the fixation Column with the drag load experimental rig for connecting, which is characterized in that a limiting slot is provided on the jig main body, it is described Limiting slot includes:

One close to the closed end of the fixed column, which includes the holding tank with predetermined length, width and depth, Its length and width is adapted with the length and width of the chain link of the chain to be measured, for accommodating and limiting the chain to be measured One first chain link, the depth of the holding tank are greater than the width of the chain link of the chain to be measured；And

One open end far from the fixed column, the open end include the notch of the connection holding tank, and the height of the notch is not Less than the depth of the holding tank, the width of the notch is adapted with the height of the chain link to be measured, and the notch is for accommodating With one second chain link for limiting the chain to be measured.

2. a kind of chain fixture according to claim 1, which is characterized in that the bottom surface of the holding tank is close to the notch Place is provided with an arc groove, the arc end phase of the size and shape of the arc groove and the second chain link of the chain to be measured Adaptation.

3. a kind of chain fixture according to claim 1, which is characterized in that the notch is set far from the fixed column side It is equipped with a cambered surface, the size and shape of the cambered surface is adapted with the arc end of a third chain link of the chain to be measured.

4. a kind of chain fixture according to claim 1, which is characterized in that the fixed column is used for and the drag load One end of experimental rig connection is provided with circle protrusion.