CN203868039U - Fatigue loading protecting module - Google Patents
Fatigue loading protecting module Download PDFInfo
- Publication number
- CN203868039U CN203868039U CN201420292166.0U CN201420292166U CN203868039U CN 203868039 U CN203868039 U CN 203868039U CN 201420292166 U CN201420292166 U CN 201420292166U CN 203868039 U CN203868039 U CN 203868039U
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- load
- fatigue loading
- valve
- pressurized strut
- protection module
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Abstract
The utility model relates to a fatigue loading protecting module, and belongs to the technical field of fatigue loading protecting structures. The fatigue loading protecting module comprises a high pressure filter, an electro-hydraulic servo valve and an electromagnetic directional valve, wherein the high pressure filter, the electro-hydraulic servo valve and the electromagnetic directional valve are integrated with a valve block. The valve block is further provided with an oil feeding joint, an oil returning joint, a load joint I and a load joint II, wherein the load joint I and the load joint II are communicated with two load cavities of a servo actuating cylinder. The fatigue loading protecting module can meet fatigue loading test requirements, the functions are simplified, hydraulic principles and effects are practical, safety and reliability are achieved, a self-control load protecting valve is omitted, unloading vibration is eliminated effectively, interchangeability is good, the size is small, and installation is convenient.
Description
Technical field
The utility model relates to a kind of fatigue loading protection module, belongs to fatigue loading protection module technical field of structures.
Background technique
At present, domestic existing fatigue loading protection module is continued to use the American MTS company product seventies, and this product mainly exists following shortcoming: 1, complex structure, and cost is high, and function is loaded down with trivial details; 2, the adjustment of clipping value is more difficult, in debug process vibration large, load-limiting valve inner structure size and pressurized strut cylinder diameter, bar footpath are corresponding one by one, therefore there is no interchangeability; 3, the sealing of self-control pushswitch is unreliable, pressurize weak effect; 4, the integrated hydrovalve of module itself is all made by oneself, and interchangeability is poor, and technology capability is unstable, and reject rate is high, and Security is low.
Summary of the invention
The purpose of this utility model is to solve the deficiency that above-mentioned prior art exists; provide a kind of for fatigue loading test requirements document; simplify function; the practicality of hydraulic principle effect, safe and reliable, cancel self-control load Protective valve; effectively eliminate unloading vibration; interchangeability is good, and volume is little, fatigue loading protection module easy for installation.
The utility model is achieved through the following technical solutions:
A kind of fatigue loading protection module, its special way is to comprise the high pressure filter 5, electrohydraulic control 1, the solenoid directional control valve 2 that are integrated on valve piece 6, the load connector I 10, the load connector II 11 that on valve piece 6, are also provided with fuel inlet fitting 8, back leakage connection 9 and are connected with two load cavities of servo pressurized strut 4;
On described valve piece 6, be also provided with two load cavity pressure measuring tie-ins 7 that are connected with two load cavities of servo pressurized strut 4;
In order to play the effect of damping adjusting, two chambeies of described servo pressurized strut 4 are all connected with throttle valve 3;
Described servo pressurized strut 4 is two servo pressurized struts of bar, and valve piece 6 is provided with a bi-bit bi-pass ball formula solenoid directional control valve 2;
Described servo pressurized strut 4 is the servo pressurized strut of single pole, and valve piece 6 is provided with two bi-bit bi-pass ball formula solenoid directional control valves 2.
Fatigue loading protection module of the present utility model; safe and reliable; effectively realize power-off protection, damping adjustable function; while meeting overload or power-off suddenly; solenoid directional control valve is linked up two load cavities and logical oil return; oil sources off-load, vibrates littlely when off-load, mechanism keeps trystate before power-off; in slowly returning under restoring force effect; in the time of system oil-break, the working state of protection module is similar to power-off, and the utility model is mainly for dynamic fatigue load test; there is integration high; interchangeability is good, succinctly practical, safe and reliable technique effect.
Brief description of the drawings
Fig. 1: the structural representation of a kind of fatigue loading protection module of the utility model;
Fig. 2: a kind of fatigue loading protection module of the utility model embodiment 1 schematic diagram;
Fig. 3: a kind of fatigue loading protection module of the utility model embodiment 2 schematic diagram.
Embodiment
Provide embodiment of the present utility model below with reference to accompanying drawing, be used for the utility model to be described further.
Embodiment 1
A kind of fatigue loading protection module of the present embodiment, comprise the high pressure filter 5, electrohydraulic control 1, the solenoid directional control valve 2 that are integrated on valve piece 6, the load connector I 10, the load connector II 11 that on valve piece 6, are also provided with fuel inlet fitting 8, back leakage connection 9 and are connected with two load cavities of servo pressurized strut 4, on valve piece 6, be also provided with two load cavity pressure measuring tie-ins 7 that are connected with two load cavities of servo pressurized strut 4, in order to play the effect of damping adjusting, two load cavities of described servo pressurized strut 4 are all connected with throttle valve 3; Servo pressurized strut 4 is two servo pressurized struts of bar, and valve piece 6 is provided with a bi-bit bi-pass ball formula solenoid directional control valve 2.
Embodiment 2
The present embodiment and embodiment's 1 difference is: servo pressurized strut 4 is the servo pressurized strut of single pole, and valve piece 6 is provided with two bi-bit bi-pass ball formula solenoid directional control valves 2.
Working principle: fatigue loading protection module and the servo pressurized strut 4 of above-described embodiment support the use; the situations such as power-off, oil cutting-off protection and, servovalve stuck, faulty sensor or its wire breakage excessive in instruction that rise play overload protective function, anti-locking mechanism accidental damage while generation.The stability of a system during for raising dynamic load, eliminates self-excitation and hydraulic shock, is communicated with a small flow throttle valve, for regulating two load cavity dampings in servo pressurized strut 4 load two chambeies.
When work, pressure oil P enters into electrohydraulic control 1 by fuel inlet fitting 8 and high pressure filter 5, switch on to solenoid directional control valve 2, the left electromagnet energising of electrohydraulic control 1, pressure oil enters servo pressurized strut 4 cavity of resorptions through electrohydraulic control 1, the piston rod of servo pressurized strut 4 moves up, and servo pressurized strut 4 epicoele oil, through electrohydraulic control 1, flow back to fuel tank by back leakage connection 9; The right electromagnet energising of electrohydraulic control 1, pressure oil enters servo pressurized strut 4 epicoeles through electrohydraulic control 1, and servo pressurized strut 4 piston rods move down, and servo pressurized strut 4 cavity of resorption oil, through electrohydraulic control 1, flow back to fuel tank by back leakage connection 9.
In the time of system cut-off; namely solenoid directional control valve 2 power-off; two chambeies, 4 liang of chambeies of servo pressurized strut are communicated with; make oil sources off-load; mechanism keeps the front trystate of power-off; in slowly returning under restoring force effect; in the time of system oil-break; the working state of protection module is similar to power-off, stops loading and off-load, and when unloading, ball formula solenoid directional control valve is 2 switching times: opening time (energising; oil circuit disconnects) be 35ms; shut-in time (power-off, oil circuit is connected) is 50ms, can meet 200ms unloading requirement switching time.While closing, sealing is reliable.
Throttle valve 3 is set on protection module, and the rated flow of throttle valve 3 is 30L/min, while producing self-excitation, can finely tune throttle valve opening when dynamic load, and balance servo actuator two chamber pressure reduction reduce vibration and hydraulic shock, and throttle valve 3 generally cuts out.
It is to be all integrated on a valve piece 6 that the oil circuit of whole protection module is communicated with, and all hydraulic valve is arranged on valve piece 6, processes the mounting hole of valve and be communicated with oil circuit hole on valve piece 6, does not need another skirt road.Compact structure, small and exquisite.
Claims (5)
1. a fatigue loading protection module; it is characterized in that comprising the high pressure filter (5), electrohydraulic control (1), the solenoid directional control valve (2) that are integrated on valve piece (6), the load connector I (10), the load connector II (11) that on valve piece (6), are also provided with fuel inlet fitting (8), back leakage connection (9) and are connected with two load cavities of servo pressurized strut (4).
2. according to a kind of fatigue loading protection module claimed in claim 1, it is characterized in that being also provided with on described valve piece (6) two load cavity pressure measuring tie-ins (7) that are connected with two load cavities of servo pressurized strut (4).
3. according to a kind of fatigue loading protection module described in right 1 or 2, it is characterized in that two chambeies of described servo pressurized strut (4) are all connected with throttle valve (3).
4. according to a kind of fatigue loading protection module claimed in claim 3, it is characterized in that described servo pressurized strut (4) is for two servo pressurized struts of bar, valve piece (6) is provided with a bi-bit bi-pass ball formula solenoid directional control valve (2).
5. according to a kind of fatigue loading protection module claimed in claim 3, it is characterized in that described servo pressurized strut (4) is the servo pressurized strut of single pole, valve piece (6) is provided with two bi-bit bi-pass ball formula solenoid directional control valves (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292166.0U CN203868039U (en) | 2014-06-03 | 2014-06-03 | Fatigue loading protecting module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292166.0U CN203868039U (en) | 2014-06-03 | 2014-06-03 | Fatigue loading protecting module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868039U true CN203868039U (en) | 2014-10-08 |
Family
ID=51648998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292166.0U Active CN203868039U (en) | 2014-06-03 | 2014-06-03 | Fatigue loading protecting module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971961A (en) * | 2016-07-05 | 2016-09-28 | 扬中市众成管路配件有限公司 | Novel valve station |
| CN110487626A (en) * | 2019-09-06 | 2019-11-22 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo twin shaft pipeline fatigue experimental device |
-
2014
- 2014-06-03 CN CN201420292166.0U patent/CN203868039U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971961A (en) * | 2016-07-05 | 2016-09-28 | 扬中市众成管路配件有限公司 | Novel valve station |
| CN110487626A (en) * | 2019-09-06 | 2019-11-22 | 烟台中宇航空液压有限公司 | Electro-hydraulic servo twin shaft pipeline fatigue experimental device |
| CN110487626B (en) * | 2019-09-06 | 2022-03-01 | 烟台华腾技术有限公司 | Fatigue test device for electrohydraulic servo double-shaft pipeline |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |