CN104792637A - Testing method and apparatus for frictional wear of valve body - Google Patents
Testing method and apparatus for frictional wear of valve body Download PDFInfo
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- CN104792637A CN104792637A CN201410029349.8A CN201410029349A CN104792637A CN 104792637 A CN104792637 A CN 104792637A CN 201410029349 A CN201410029349 A CN 201410029349A CN 104792637 A CN104792637 A CN 104792637A
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- push rod
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Abstract
The invention discloses a testing method and apparatus for frictional wear of a valve body. According to the invention, a cam 12 rotates under the driving of a motor 8; a protruding part of the cam upward presses a push rod 15 so as to allow the push rod to do rectilinear motion in a cam bushing 14; a spring 13 is arranged in the cam bushing; the top end of the push rod is always in close contact with the cam through the spring; the push rod drives a valve stem 17 to do reciprocating motion in the valve opening of the valve body 1; and thus, wear testing of the valve stem and the valve body is realized. With the method and apparatus provided by the invention, reciprocating motion of the valve stem in the valve opening of the valve body is realized, thereby realizing wear testing, and the frequency of the reciprocating motion can be calculated via a counter in the process of testing; and the temperature of the valve body is adjustable, so the temperature of the valve body is controlled in a predetermined range during testing, or automatic shutdown is carried out after temperature exceeds a safety value. The testing apparatus has a simple structure and low manufacturing cost and can reduce development cost.
Description
Technical field
the present invention relates to a kind of valve body friction and wear test method and device, belong to valve body wear test technical field.
Background technology
in the development process of carrying out hydraulic component, in order to evaluate the friction and wear behavior of valve body and valve rod metal material used, and wear resistance during lubricating oil used or railway grease long, usually need to carry out friction and wear behavior test, to guarantee product reliability in use.Do the test of this friction and wear behavior, this test required time is longer, needs special friction and wear behavior testing equipment, but this testing equipment price general charged is more expensive.In order to save development cost, need a kind of easy polishing machine testing equipment of design, with satisfied test needs.
Summary of the invention
the object of the invention is to, a kind of valve body friction and wear test method and device are provided, by the cam be connected with motor, the rotary motion of motor are converted to the linear reciprocating motion of valve rod, make valve rod to-and-fro movement in valve body, to meet the needs of valve body friction and wear test.
technical scheme of the present invention:
a kind of valve body friction and wear test method of the present invention is, the method is rotated by driven by motor cam, in cam chair, rectilinear motion is done again by the boss top of the cam bar that bears down on one, spring is provided with in cam chair, by spring make push rod end all the time with cam close contact, by the to-and-fro movement in the valve opening of valve body of push rod band ovable valve stem; To realize the wear testing of valve rod and valve body.
in preceding method, the support bottom described cam is provided with sensor for countering, and sensor for countering is connected with the counter in electric cabinet, by counter records valve rod reciprocating number of times in the valve opening of valve body.
in preceding method, described valve body is provided with thermopair and heating rod, is heated valve body by heating rod, and passes through the temperature of thermocouple measurement valve body, with the impact of probe temperature for valve body rubbing wear.
in preceding method, described valve body is connected with hydraulic system, and the valve opening two ends of valve body are provided with O-ring seal; By observing the leakage situation of O-ring seal, determine the degree of wear of valve body.
in preceding method, be provided with attemperating unit in described electronic box case, in test process, temperature can be controlled in preset range, or temperature exceedes auto stop after safety value.
the of the present invention a kind of valve body friction-wear detecting apparatus formed according to the method described above is that this device comprises base plate; Be provided with support in the middle part of base plate, support is provided with motor mount, and the base plate of support both sides is provided with the valve body be arranged symmetrically with, and is provided with valve rod in valve body; Valve rod is connected with push rod; The cam chair of push rod and motor mount both sides is slidably connected, and is provided with spring in cam chair, and be provided with cam between two push rods, cam is in transmission connection through the output shaft of driving-belt and motor.
in aforementioned means, described valve body is provided with thermopair and heating rod; Thermopair and heating rod and motor are all electrically connected with electric cabinet; Electric cabinet is provided with temperature indicator and register.
in aforementioned means, the support bottom described cam is provided with sensor for countering, and sensor for countering and electric cabinet are electrically connected.
in aforementioned means, the valve opening on described valve rod and valve body is slidably connected, and valve opening two ends are provided with O-ring seal; Valve rod is connected with push rod through coupling bolt.
in aforementioned means, be provided with one group of supporting leg bottom described base plate, bottom supporting leg, be provided with roller.
compared with prior art, the present invention can realize valve rod to-and-fro movement in the valve opening of valve body, to complete wear testing, by the reciprocating number of times of counter in test process.And temperature can control in preset range by adjustable valve temperature in test process, or temperature exceedes auto stop after safety value.Structure of the present invention is simple, and cost of manufacture is low, can reduce development cost.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
being labeled as in figure: 1-valve body, 2-O-ring seal, 3-thermopair, 4-heating rod, 5-base plate, 6-supporting leg, 7-roller, 8-motor, 9-output shaft, 10-motor mount, 11-driving-belt, 12-cam, 13-spring, 14-cam chair, 15-push rod, 16-coupling bolt, 17-valve rod, 18-temperature indicator, 19-counter, 20-electric cabinet, 21-sensor for countering, 22-support.
Embodiment
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
embodiments of the invention: a kind of valve body friction and wear test method of the present invention is, as shown in Figure 1, the method is with moving cam 12 to rotate by motor 8, in cam chair 14, rectilinear motion is done again by the boss top of cam 12 bar 15 that bears down on one, spring 13 is provided with in cam chair 14, by spring 13 make push rod 15 end all the time with cam 12 close contact, by push rod 15 with ovable valve stem 17 to-and-fro movement in the valve opening of valve body 1; To realize the wear testing of valve rod 17 and valve body 1.Support 22 bottom cam 12 is provided with sensor for countering 21, and sensor for countering 21 is connected with the counter in electric cabinet, by counter records valve rod 17 reciprocating number of times in the valve opening of valve body 1.Valve body 1 is provided with thermopair 3 and heating rod 4, is heated, and measures the temperature of valve body 1 by thermopair 3, with the impact of probe temperature for valve body rubbing wear by heating rod 4 pairs of valve bodies 1.Valve body 1 is connected with hydraulic system, and the valve opening two ends of valve body 1 are provided with O-ring seal 2; By observing the leakage situation of O-ring seal 2, determine the degree of wear of valve body 1.Be provided with attemperating unit in electronic box case 20, in test process, temperature can be controlled in preset range, or temperature exceedes auto stop after safety value.
as shown in Figure 1, this device comprises base plate 5 to the structural representation of the of the present invention a kind of valve body friction-wear detecting apparatus formed according to the method described above; Be provided with support 22 in the middle part of base plate 5, support 22 is provided with motor mount 10, and the base plate 5 of support 22 both sides is provided with the valve body 1 be arranged symmetrically with, and is provided with valve rod 17 in valve body 1; Valve rod 17 is connected with push rod 15; Push rod 15 is slidably connected with the cam chair 14 of motor mount 10 both sides, is provided with spring 13, is provided with cam 12 between two push rods 15 in cam chair 14, and cam 12 is in transmission connection through the output shaft 9 of driving-belt 11 with motor 8.Valve body 1 is provided with thermopair 3 and heating rod 4; Thermopair 3 and heating rod 4 and motor 8 are all electrically connected with electric cabinet 20; Electric cabinet 20 is provided with temperature indicator 18 and register 19.Support 22 bottom cam 12 is provided with sensor for countering 21, and sensor for countering 21 and electric cabinet 20 are electrically connected.Valve rod 17 is slidably connected with the valve opening on valve body 1, and valve opening two ends are provided with O-ring seal 2; Valve rod 17 is connected with push rod 15 through coupling bolt 16.Be provided with one group of supporting leg 6 bottom base plate 5, bottom supporting leg 6, be provided with roller 7.
Claims (10)
1. a valve body friction and wear test method, it is characterized in that: the method is rotated by driven by motor cam, in cam chair, rectilinear motion is done again by the boss top of the cam bar that bears down on one, spring is provided with in cam chair, by spring make push rod end all the time with cam close contact, by the to-and-fro movement in the valve opening of valve body of push rod band ovable valve stem; To realize the wear testing of valve rod and valve body.
2. method according to claim 1, it is characterized in that: the support bottom described cam is provided with sensor for countering, sensor for countering is connected with the counter in electric cabinet, by counter records valve rod reciprocating number of times in the valve opening of valve body.
3. method according to claim 1, is characterized in that: described valve body is provided with thermopair and heating rod, is heated valve body by heating rod, and by the temperature of thermocouple measurement valve body, with the impact of probe temperature for valve body rubbing wear.
4. method according to claim 1, it is characterized in that: described valve body is connected with hydraulic system, the valve opening two ends of valve body are provided with O-ring seal; By observing the leakage situation of O-ring seal, determine the degree of wear of valve body.
5. method according to claim 1, is characterized in that: be provided with attemperating unit in described electronic box case, temperature can be controlled in preset range in test process, or temperature exceedes auto stop after safety value.
6., according to the valve body friction-wear detecting apparatus that method described in the arbitrary claim of Claims 1 to 5 is formed, comprise base plate (5); It is characterized in that: base plate (5) middle part is provided with support (22), and support (22) is provided with motor mount (10), and the base plate (5) of support (22) both sides is provided with the valve body (1) be arranged symmetrically with, and is provided with valve rod (17) in valve body (1); Valve rod (17) is connected with push rod (15); Push rod (15) is slidably connected with the cam chair (14) of motor mount (10) both sides, spring (13) is provided with in cam chair (14), be provided with cam (12) between two push rods (15), cam (12) is in transmission connection through the output shaft (9) of driving-belt (11) with motor (8).
7. device according to claim 6, is characterized in that: described valve body (1) is provided with thermopair (3) and heating rod (4); Thermopair (3) and heating rod (4) and motor (8) are all electrically connected with electric cabinet (20); Electric cabinet (20) is provided with temperature indicator (18) and register (19).
8. device according to claim 6, is characterized in that: the support (22) of described cam (12) bottom is provided with sensor for countering (21), and sensor for countering (21) and electric cabinet (20) are electrically connected.
9. device according to claim 6, is characterized in that: described valve rod (17) is slidably connected with the valve opening on valve body (1), and valve opening two ends are provided with O-ring seal (2); Valve rod (17) is connected with push rod (15) through coupling bolt (16).
10. device according to claim 6, is characterized in that: described base plate (5) bottom is provided with one group of supporting leg (6), and supporting leg (6) bottom is provided with roller (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029349.8A CN104792637A (en) | 2014-01-22 | 2014-01-22 | Testing method and apparatus for frictional wear of valve body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410029349.8A CN104792637A (en) | 2014-01-22 | 2014-01-22 | Testing method and apparatus for frictional wear of valve body |
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| CN104792637A true CN104792637A (en) | 2015-07-22 |
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| CN201410029349.8A Pending CN104792637A (en) | 2014-01-22 | 2014-01-22 | Testing method and apparatus for frictional wear of valve body |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238898A (en) * | 2018-08-30 | 2019-01-18 | 武汉船用机械有限责任公司 | A kind of friction block abrasion test device and its assemble method |
| CN109289529A (en) * | 2018-11-07 | 2019-02-01 | 温州莲华环保科技有限公司 | A kind of high-performance separation film purifying device |
| CN110104592A (en) * | 2019-03-27 | 2019-08-09 | 浙江立鹏建设有限公司 | A kind of building construction elevator |
| CN110542621A (en) * | 2019-10-08 | 2019-12-06 | 王龙 | Mining roller cage shoe fatigue pressure test bed |
| CN111390768A (en) * | 2020-03-26 | 2020-07-10 | 深圳市俊达通办公智能科技有限公司 | Water jet cutting machine with prevent stifled and prevent frostbite function |
| CN113218800A (en) * | 2021-04-25 | 2021-08-06 | 同济大学 | Ball valve fretting wear testing system and method based on piezoelectric actuator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238898A (en) * | 2018-08-30 | 2019-01-18 | 武汉船用机械有限责任公司 | A kind of friction block abrasion test device and its assemble method |
| CN109289529A (en) * | 2018-11-07 | 2019-02-01 | 温州莲华环保科技有限公司 | A kind of high-performance separation film purifying device |
| CN109289529B (en) * | 2018-11-07 | 2021-09-28 | 温州莲华环保科技有限公司 | High-performance separation membrane purification device |
| CN110104592A (en) * | 2019-03-27 | 2019-08-09 | 浙江立鹏建设有限公司 | A kind of building construction elevator |
| CN110542621A (en) * | 2019-10-08 | 2019-12-06 | 王龙 | Mining roller cage shoe fatigue pressure test bed |
| CN111390768A (en) * | 2020-03-26 | 2020-07-10 | 深圳市俊达通办公智能科技有限公司 | Water jet cutting machine with prevent stifled and prevent frostbite function |
| CN113218800A (en) * | 2021-04-25 | 2021-08-06 | 同济大学 | Ball valve fretting wear testing system and method based on piezoelectric actuator |
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Application publication date: 20150722 |
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