CN206740616U - Confficient of static friction detector - Google Patents

Confficient of static friction detector Download PDF

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Publication number
CN206740616U
CN206740616U CN201620953922.9U CN201620953922U CN206740616U CN 206740616 U CN206740616 U CN 206740616U CN 201620953922 U CN201620953922 U CN 201620953922U CN 206740616 U CN206740616 U CN 206740616U
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China
Prior art keywords
test block
pairing test
pairing
confficient
oil cylinder
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Active
Application number
CN201620953922.9U
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Chinese (zh)
Inventor
于国富
庄龙森
吴亚东
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WUXI HONGHAILONG MARINE MACHINERY CO Ltd
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WUXI HONGHAILONG MARINE MACHINERY CO Ltd
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Abstract

It the utility model is related to friction coefficient measurement technical field,Specially a kind of confficient of static friction detector,Its is simple in construction,The coefficient of friction under high pressure can easily be detected,It includes body,The body interior is provided with measurement cavity,The first pairing test block is provided with the measurement cavity,One second pairing test block is provided with left and right sides of the first pairing test block,The pipe bending cylinder for promoting the first pairing test block is provided with front side of the first pairing test block,The amount post of contact is provided with rear side of the first pairing test block,Silk table is provided with the amount post,The first pairing test block lower end is supported on ball,The compressed oil cylinder that arrangement is mutually perpendicular to the pipe bending cylinder is additionally provided with the body,The compressed oil cylinder promotes one piece of the second pairing test block the first pairing test block is pressed in the described second pairing test block in the measurement cavity.

Description

Confficient of static friction detector
Technical field
Friction coefficient measurement technical field is the utility model is related to, specially a kind of confficient of static friction detector.
Background technology
Since the domestic appearance of in 1995 hydrocoupling, the coefficient of friction one between hydrocoupling inner sleeve and axle 0.14 ~ 0.15 directly is taken, about 0.25 can be got to coefficient of friction between the two by being developed so far my company, and world standard is at present 0.3, the coefficient of friction for hydrocoupling is the important indicator of product, especially confficient of static friction, therefore determines product The problem of coefficient of friction is also one important, provides process modification and Quality advance strong guarantee, and existing measuring method Typically torque value retrodicts calculating, as requirement of the market to hydrocoupling is being lifted, it is desirable to the static friction of high pressure and Dynamic friction testing stand there is no, only for the very low small-scale test instrument of the unit pressure that uses of imparting knowledge to students, as DVTTM-1, MXD-0, and for high pressure test such as 40 to 120MPa, then without such detecting instrument.
The content of the invention
In order to solve the above problems, the utility model provides a kind of confficient of static friction detector, and its is simple in construction, can The convenient coefficient of friction detected under high pressure.
Its technical scheme is such:A kind of confficient of static friction detector, it is characterised in that it includes body, described Internal portion is provided with measurement cavity, and the first pairing test block, the first pairing test block left and right sides are provided with the measurement cavity One second pairing test block is provided with, the pushing tow for promoting the first pairing test block is provided with front side of the first pairing test block Oil cylinder, the first pairing test block rear side are provided with the amount post of contact, and silk table, the first pairing examination are provided with the amount post Block lower end is supported on ball, and the compressed oil cylinder that arrangement is mutually perpendicular to the pipe bending cylinder, institute are additionally provided with the body Stating compressed oil cylinder promotes one piece of the second pairing test block the first pairing test block is pressed in the described second pairing test block In the measurement cavity.
It is further characterized by, and the pipe bending cylinder is fixedly installed in described with the compressed oil cylinder by screw On body, the piston rod of the pipe bending cylinder and the compressed oil cylinder stretches into the measurement cavity by perforation;
The first pairing test block lower end is supported on two balls;
The second pairing test block front and rear sides identity distance is from, first pairing corresponding with the width of the measurement cavity Test block is the width that square and the length of side are less than the measurement cavity.
After detector of the present utility model, compressed oil cylinder applies one by the second pairing test block to the first pairing test block Individual normal load power, pipe bending cylinder apply a thrust so as to be tried in the first pairing test block and the second pairing to the first pairing test block Direction frictional force is produced on the contact surface of block, by the i.e. available first pairing test block of the ratio of frictional force and normal load power and Coefficient of friction between second pairing test block, overall structure is simple, and the compression of compressed oil cylinder can be adjusted according to high pressure requirement Power easily detects the coefficient of friction under high pressure so as to change the jacking force of pipe bending cylinder;Two before and after second pairing test block Lateral distance with measure cavity width it is corresponding can ensure the second pairing test block movement when guiding it is accurate, ensure that measurement Precision.
Brief description of the drawings
Fig. 1 is the utility model structure diagram;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is the utility model left view.
Embodiment
See Fig. 1, Fig. 2, shown in Fig. 3, a kind of confficient of static friction detector, it includes body 1, measurement is provided with inside body 1 Cavity 2, measure and the first pairing test block 3 is provided with cavity 2, the left and right sides of the first pairing test block 3 is provided with one second and matched somebody with somebody To test block 4, the front side of the first pairing test block 3 is provided with the pipe bending cylinder 5 for promoting the first pairing test block 3, the rear side of the first pairing test block 3 The amount post 6 of contact is provided with, measures and is provided with silk table on post 6(It is not drawn into), whether change and can judge by the reading of silk table Whether the first pairing test block 3 is moved, and the first pairing test block 3 lower end is supported on two balls 7, and the setting of ball 7 makes first to match somebody with somebody It is rolling friction to the bottom surface of test block 3, the frictional force can be ignored substantially, so as to ensures that the thrust measured is that compressed oil cylinder 8 is applied The thrust that adds and caused frictional force, the compressed oil cylinder 8 that arrangement is mutually perpendicular to pipe bending cylinder 5 are additionally provided with body 1, pressure Locking oil cylinder 8 promotes one piece of second pairing test block 4 the first pairing test block 3 and the second pairing test block 4 is pressed in measurement cavity 2. Pipe bending cylinder 5 is fixedly installed on body 1 with compressed oil cylinder 8 by screw 9, the piston rod of pipe bending cylinder 5 and compressed oil cylinder 8 10 stretch into measurement cavity by perforation;The second pairing front and rear sides identity distance of test block 4 is corresponding from the width with measuring cavity 2, First pairing test block 3 is the width that square and the length of side are less than measurement cavity 2.In figure 12 be oil cylinder joint of releasing.
Measurement process is as described below:The thrust that second pairing test block 4 of the compressed oil cylinder 8 to right side applies a setting makes First pairing test block 3 is pressed between two second pairing test blocks 4, and then the piston of pipe bending cylinder 5 withstands the first pairing examination Block 3 applies thrust to it, and now the first pairing test block 3 is remained static, and test block 4 is matched in the first pairing test block 3 and second Stiction is produced between contact surface, is gradually increased thrust, until the first pairing test block 4 that time from static to mobile, is stopped Thrust is only increased, thrust now is maximum static friction force, because the first pairing test block 4 or so two sides is tried with the second pairing Block 5 contacts, and the maximum static friction force measured divided by twice of thrust are confficient of static friction.

Claims (4)

1. a kind of confficient of static friction detector, it is characterised in that it includes body, and the body interior is provided with measurement cavity, institute State and the first pairing test block is provided with measurement cavity, one second pairing examination is provided with left and right sides of the first pairing test block Block, the first pairing test block front side are provided with the pipe bending cylinder for promoting the first pairing test block, the first pairing test block Rear side is provided with the amount post of contact, and silk table is provided with the amount post, and the first pairing test block lower end is supported on ball, institute The compressed oil cylinder for being additionally provided with body and arrangement being mutually perpendicular to the pipe bending cylinder is stated, the compressed oil cylinder is promoted described in one piece Second pairing test block makes the first pairing test block be pressed in the described second pairing test block in the measurement cavity.
2. a kind of confficient of static friction detector according to claim 1, it is characterised in that the pipe bending cylinder and the pressure Locking oil cylinder is fixedly installed on the body by screw, and the piston rod of the pipe bending cylinder and the compressed oil cylinder passes through The measurement cavity is stretched into perforation.
A kind of 3. confficient of static friction detector according to claim 1, it is characterised in that the first pairing test block lower end It is supported on two balls.
4. a kind of confficient of static friction detector according to claim 1, it is characterised in that before and after the second pairing test block Two sides distance is corresponding with the width of the measurement cavity, and the first pairing test block is square and the length of side is less than the survey Measure the width of cavity.
CN201620953922.9U 2016-08-28 2016-08-28 Confficient of static friction detector Active CN206740616U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620953922.9U CN206740616U (en) 2016-08-28 2016-08-28 Confficient of static friction detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620953922.9U CN206740616U (en) 2016-08-28 2016-08-28 Confficient of static friction detector

Publications (1)

Publication Number Publication Date
CN206740616U true CN206740616U (en) 2017-12-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620953922.9U Active CN206740616U (en) 2016-08-28 2016-08-28 Confficient of static friction detector

Country Status (1)

Country Link
CN (1) CN206740616U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106092877A (en) * 2016-08-28 2016-11-09 无锡鸿海龙船机有限公司 A kind of confficient of static friction detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106092877A (en) * 2016-08-28 2016-11-09 无锡鸿海龙船机有限公司 A kind of confficient of static friction detector

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