CN203868019U - Static loading protection module - Google Patents
Static loading protection module Download PDFInfo
- Publication number
- CN203868019U CN203868019U CN201420290558.3U CN201420290558U CN203868019U CN 203868019 U CN203868019 U CN 203868019U CN 201420290558 U CN201420290558 U CN 201420290558U CN 203868019 U CN203868019 U CN 203868019U
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- Prior art keywords
- valve
- logical valve
- logical
- solenoid directional
- directional control
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- Expired - Lifetime
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- 230000003068 static effect Effects 0.000 title claims abstract description 19
- 239000000446 fuel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a static loading protection module, and belongs to the technical field of static loading protection module structures. The static loading protection module comprises a high-pressure filter, an electro-hydraulic servo valve, a logical valve a, a logical valve b, a logical valve c and a logical valve d which are integrated on a valve block, wherein the logical valve a and the logical valve b are controlled by two electromagnetic directional valves I respectively, and the logical valve c and the logical valve d are controlled by two electromagnetic directional valves II respectively. The valve block is further provided with an oil inlet connector, an oil outlet connector, and a connector I and a connector II which are communicated with two load cavities of an actuator cylinder. The electromagnetic directional valves I and the electromagnetic directional valves II are opposite in conducting state. The static loading protection module eliminates unloading vibration, and is high in interchangeability, small in size and convenient to install.
Description
Technical field
The utility model relates to a kind of static loading protection module, belongs to static loading protection module technical field of structures.
Background technique
At present, domestic existing static 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, and provides a kind of and loads static test for intensity, simplifies function; the practicality of hydraulic principle effect, safe and reliable, eliminate unloading vibration; interchangeability is good, and volume is little, static loading protection module easy for installation.
The utility model is achieved through the following technical solutions:
A kind of static loading protection module, its special way is to comprise high pressure filter 1, the electrohydraulic control 2 being integrated on valve piece 6 and the logical valve a3 that is controlled by respectively two solenoid directional control valve I 4 and logical valve b13, the logical valve c7 that is controlled by two solenoid directional control valve II 5, logical valve d14, the joint I 11, the joint II 12 that on valve piece 6, are also provided with fuel inlet fitting 8, delivery connection 9 and are connected with two load cavities of pressurized strut 10, wherein, solenoid directional control valve I 4 is contrary with the on state of solenoid directional control valve II 5;
Described logical valve a3, logical valve b13, logical valve c7, logical valve d14 are that unbalanced type pilot is closed logical valve, logical valve a3, logical valve b13, logical valve c7, logical valve d14 are provided with the pilot level control valve socket for inserting solenoid directional control valve I 4, II 5, and solenoid directional control valve I 4, solenoid directional control valve II 5 are pilot level solenoid directional control valve.
Static loading protection module of the present utility model, protection module integration is high, and interchangeability is good, and volume is little, lightweight, easy for installation, and manufacturability is high, can effectively realize power-off protection, urgent locked and unloading function.Safe and reliable, simple for structure, and the utility model is cancelled self-control overload protection valve; by solenoid directional control valve control logic valve, solve overload protection from hydraulic principle, eliminate unloading vibration; cancel self-control pushswitch, realize pressurize zero leakage by solenoid directional control valve control logic valve.
Brief description of the drawings
Fig. 1: the structural representation of a kind of static loading protection module of the utility model;
Fig. 2: the schematic diagram of a kind of static loading protection module of the utility model.
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 static loading protection module of the present embodiment, comprise high pressure filter 1, the electrohydraulic control 2 being integrated on valve piece 6 and the logical valve a3 that is controlled by respectively two solenoid directional control valve I 4 and logical valve b13, the logical valve c7 that is controlled by two solenoid directional control valve II 5, logical valve d14, the joint I 11, the joint II 12 that on valve piece 6, are also provided with fuel inlet fitting 8, delivery connection 9 and are connected with two load cavities of pressurized strut 10, wherein, solenoid directional control valve I 4 is contrary with the on state of solenoid directional control valve II 5; Logical valve a3, logical valve b13, logical valve c7, logical valve d14 are that unbalanced type pilot is closed logical valve, logical valve a3, logical valve b13, logical valve c7, logical valve d14 are provided with the pilot level control valve socket for inserting solenoid directional control valve I 4, II 5, and solenoid directional control valve I 4, solenoid directional control valve II 5 are pilot level solenoid directional control valve.
Working principle: pressure oil P enters into electrohydraulic control 2 by high pressure filter 1, switch on to solenoid directional control valve I 4 and solenoid directional control valve II 5, the left electromagnet energising of electrohydraulic control 2, pressure oil enters the left chamber of servo actuator 10 through logical valve a3, piston rod in servo actuator 10 moves right, the right chamber of servo actuator 10 oil, through logical valve b13, flows back to fuel tank by delivery connection 9; The right electromagnet energising of electrohydraulic control 2, pressure oil P enters the right chamber of servo actuator 10 through logical valve b13, and servo actuator 10 piston rods are moved to the left, and the left chamber of servo actuator oil, through logical valve a3, flows back to fuel tank by delivery connection 9; Solenoid directional control valve II 5 "on" positions when normal work, relief circuit, in closed condition, can normally be worked by the switching actuator of electrohydraulic control 2 like this.
In the time of system cut-off, namely solenoid directional control valve I 4,5 power-off simultaneously of solenoid directional control valve II, 10 liang of chambeies of servo actuator are closed and isolation of system by logical valve a3, logical valve b13, stop loading, and logical valve c7, logical valve d14 open and off-load simultaneously;
As make 4 power-off of solenoid directional control valve I, and logical valve a3, logical valve b13 close, and two load cavities of pressurized strut are closed, and make solenoid directional control valve II 5 switch on simultaneously, and logical valve c7, logical valve d14 close, and relief circuit, also in closed condition, can be realized lock function.
While realizing in off position by logical valve a3, logical valve b13, logical valve c7, logical valve d14, solenoid directional control valve I 4,5 combinations of solenoid directional control valve II without leakage.
Static loading protection module of the present utility model locks solenoid directional control valve in the time of pressurize: the opening time (energising, oil circuit is connected) is 30ms, and the shut-in time (power-off, oil circuit disconnects) is 70ms; Unloading solenoid directional control valve is switching time: the opening time (energising, oil circuit disconnects) is 60ms, and the shut-in time (power-off, oil circuit is connected) is 40ms.Can meet 200ms pressurize, unloading requirement switching time, select unbalanced type pilot to close logical valve, the rapidity in locking security and when unloading while having ensured normal work, select pilot level solenoid directional control valve, with the combination of logical valve plug-in mounting, carry out the closure of control logic valve by switching magnet switching, the response time is 30ms, when closing, valve port without leakage, can meet zero leakage locking requirement.
It is to be all integrated on a valve piece 6 that the oil circuit of the whole protection module of the utility model is communicated with, compact structure, and small and exquisite, 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.
Claims (2)
1. a static loading protection module, it is characterized in that comprising the high pressure filter (1) being integrated on valve piece (6), electrohydraulic control (2) and be controlled by respectively logical valve a (3) and the logical valve b (13) of two solenoid directional control valve I (4), be controlled by the logical valve c (7) of two solenoid directional control valve II (5), logical valve d (14), on valve piece (6), be also provided with fuel inlet fitting (8), delivery connection (9) and the joint I (11) being connected with two load cavities of pressurized strut (10), joint II (12), wherein, solenoid directional control valve I (4) is contrary with the on state of solenoid directional control valve II (5).
2. according to a kind of static loading protection module claimed in claim 1; it is characterized in that described logical valve a (3), logical valve b (13), logical valve c (7), logical valve d (14) are unbalanced type pilot pass logical valve; logical valve a (3), logical valve b (13), logical valve c (7), logical valve d (14) are provided with the pilot level control valve socket for inserting solenoid directional control valve I (4), II (5), and solenoid directional control valve I (4), solenoid directional control valve II (5) are pilot level solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290558.3U CN203868019U (en) | 2014-06-03 | 2014-06-03 | Static loading protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290558.3U CN203868019U (en) | 2014-06-03 | 2014-06-03 | Static loading protection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868019U true CN203868019U (en) | 2014-10-08 |
Family
ID=51648978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290558.3U Expired - Lifetime CN203868019U (en) | 2014-06-03 | 2014-06-03 | Static loading protection module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868019U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089820A (en) * | 2016-08-23 | 2016-11-09 | 北京航空航天大学 | A kind of based on the structural test loading actuating system along inverse load Discrete control |
| CN109596437A (en) * | 2019-01-14 | 2019-04-09 | 中国工程物理研究院化工材料研究所 | The loading force Control System Design method of the accurate loading simulator of static(al) |
| CN110836202A (en) * | 2019-12-05 | 2020-02-25 | 浙江大学 | Hydraulic source load self-adaptive system and self-adaptive control method thereof |
-
2014
- 2014-06-03 CN CN201420290558.3U patent/CN203868019U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089820A (en) * | 2016-08-23 | 2016-11-09 | 北京航空航天大学 | A kind of based on the structural test loading actuating system along inverse load Discrete control |
| CN106089820B (en) * | 2016-08-23 | 2018-05-25 | 北京航空航天大学 | A kind of structural test based on along inverse load Discrete control loads actuating system |
| CN109596437A (en) * | 2019-01-14 | 2019-04-09 | 中国工程物理研究院化工材料研究所 | The loading force Control System Design method of the accurate loading simulator of static(al) |
| CN109596437B (en) * | 2019-01-14 | 2021-04-02 | 中国工程物理研究院化工材料研究所 | Design method of loading force control system of static force accurate loading simulation device |
| CN110836202A (en) * | 2019-12-05 | 2020-02-25 | 浙江大学 | Hydraulic source load self-adaptive system and self-adaptive control method thereof |
| CN110836202B (en) * | 2019-12-05 | 2024-05-10 | 浙江大学 | Hydraulic source load self-adaptive system and self-adaptive control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |