CN209182011U - A kind of passive type automatic resisting applying mechanism - Google Patents
A kind of passive type automatic resisting applying mechanism Download PDFInfo
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- CN209182011U CN209182011U CN201822119526.8U CN201822119526U CN209182011U CN 209182011 U CN209182011 U CN 209182011U CN 201822119526 U CN201822119526 U CN 201822119526U CN 209182011 U CN209182011 U CN 209182011U
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- hydraulic cylinder
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- pressure adjustment
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Abstract
A kind of passive type automatic resisting applying mechanism, including first hydraulic cylinder, second hydraulic cylinder, the first pressure adjustment relief valve, the second pressure adjustment relief valve, the first check valve, second one-way valve, third check valve and the 4th check valve；First running of hydraulic power oil path are as follows: first hydraulic cylinder → the first check valve → first pressure adjustment relief valve → second one-way valve → second hydraulic cylinder；Article 2 running of hydraulic power oil path are as follows: second hydraulic cylinder → third check valve → the second pressure adjustment relief valve → four check valves → first hydraulic cylinder.Applying method are as follows: when providing positive resistance, first hydraulic cylinder piston rod is pressurized, and opens the first check valve, the first pressure adjustment relief valve is opened and second one-way valve opens, and hydraulic oil enters second hydraulic cylinder；When reversed resistance is provided, second hydraulic cylinder piston rod be pressurized, open third check valve, the second pressure adjustment relief valve open and the 4th check valve open, hydraulic oil enters first hydraulic cylinder；By adjusting pressure-regulating overflow valve opening pressure, resistance change is carried out.
Description
Technical field
The utility model belongs to industry evaluation and test experimental technique field, applies machine more particularly to a kind of passive type automatic resisting
Structure.
Background technique
Currently, many industrial products are before factory, it usually needs evaluated and tested to properties of product, only evaluate and test qualified rear
Can factory, the project of evaluation and test include precision, reliability, fatigue, service life, running-in etc. test, and these experimental rigs in order to
The true operating condition of analog equipment requires to add the power applying mechanism for simulating external applied load, passes through power applying mechanism pair
It evaluates and tests product and applies external applied load power, with going on smoothly for guarantee test.
But existing power applying mechanism is commonly active structure, is required to be equipped with hydraulic station as power source, causes
The cost and energy consumption of power applying mechanism are higher.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of passive type automatic resisting applying mechanism, is not necessarily to
Optional equipment hydraulic station only passively applies resistance as power source, considerably reduce power applying mechanism cost and
Energy consumption.
To achieve the goals above, the utility model adopts the following technical solution: a kind of passive type automatic resisting application machine
Structure, including first hydraulic cylinder, second hydraulic cylinder, the first pressure adjustment relief valve, the second pressure adjustment relief valve, the first check valve, the second list
To valve, third check valve and the 4th check valve；The inlet of first check valve is connected with the rodless cavity of first hydraulic cylinder,
The leakage fluid dram of first check valve is connected with the inlet of the first pressure adjustment relief valve, the leakage fluid dram of the first pressure adjustment relief valve and second
The inlet of check valve is connected, and the leakage fluid dram of second one-way valve is connected with the rodless cavity of second hydraulic cylinder；The third list
The rodless cavity of inlet and second hydraulic cylinder to valve is connected, the leakage fluid dram of third check valve and the second pressure adjustment relief valve into
Liquid mouth is connected, and the leakage fluid dram of the second pressure adjustment relief valve is connected with the inlet of the 4th check valve, the drain of the 4th check valve
Mouth is connected with the rodless cavity of first hydraulic cylinder；The is equipped on straight-through fluid pressure line with the rodless cavity of the first hydraulic cylinder
One pressure gauge；Second pressure gauge is installed on straight-through fluid pressure line with the rodless cavity of the second hydraulic cylinder.
A kind of passive type automatic resisting applying method works as needs using the passive type automatic resisting applying mechanism
When providing positive resistance, the piston rod of first hydraulic cylinder is pressurized, and increases the rodless cavity pressure of first hydraulic cylinder, and then make hydraulic
Oil is flowed out from the rodless cavity of first hydraulic cylinder, after pressure reaches the setting cracking pressure of the first pressure adjustment relief valve, outflow
Hydraulic oil opens the first check valve first, again opens second one-way valve after flowing through the first pressure adjustment relief valve, finally flows into second
The rodless cavity of first hydraulic cylinder is connected with the rodless cavity of second hydraulic cylinder in the rodless cavity of hydraulic cylinder, and hydraulic oil is from
During the rodless cavity of one hydraulic cylinder flows into the rodless cavity of second hydraulic cylinder, by the positive resistance needed for generating.
By adjusting the cracking pressure of the first pressure adjustment relief valve, and then required positive resistance is changed, is led to simultaneously
It crosses first pressure gauge and real-time display is carried out to set cracking pressure.
A kind of passive type automatic resisting applying method works as needs using the passive type automatic resisting applying mechanism
When providing reversed resistance, the piston rod of second hydraulic cylinder is pressurized, and increases the rodless cavity pressure of second hydraulic cylinder, and then make hydraulic
Oil is flowed out from the rodless cavity of second hydraulic cylinder, after pressure reaches the setting cracking pressure of the second pressure adjustment relief valve, outflow
Hydraulic oil opens third check valve first, again opens the 4th check valve after flowing through the second pressure adjustment relief valve, finally flows into first
The rodless cavity of second hydraulic cylinder is connected with the rodless cavity of first hydraulic cylinder in the rodless cavity of hydraulic cylinder, and hydraulic oil is from
During the rodless cavity of two hydraulic cylinders flows into the rodless cavity of first hydraulic cylinder, by the reversed resistance needed for generating.
By adjusting the cracking pressure of the second pressure adjustment relief valve, and then required reversed resistance is changed, is led to simultaneously
It crosses second pressure gauge and real-time display is carried out to set cracking pressure.
The utility model has the beneficial effects that
The passive type automatic resisting applying mechanism of the utility model, without optional equipment hydraulic station as power source, only with
Passive mode applies resistance, considerably reduces the cost and energy consumption of power applying mechanism, while having and being skillfully constructed, structure letter
Single, feature applied widely.
Detailed description of the invention
Fig. 1 is a kind of structure principle chart of passive type automatic resisting applying mechanism of the utility model；
In figure, 1-first hydraulic cylinder, 2-second hydraulic cylinders, the 3-the first pressure adjustment relief valve, the 4-the second pressure adjustment relief valve,
5-the first check valve, 6-second one-way valves, 7-third check valves, the 8-the four check valve, 9-first pressure gauges, 10-the
Two pressure gauges.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of passive type automatic resisting applying mechanism, including first hydraulic cylinder 1, second hydraulic cylinder 2, first
Pressure adjustment relief valve 3, the second pressure adjustment relief valve 4, the first check valve 5, second one-way valve 6, third check valve 7 and the 4th check valve 8；
The inlet of first check valve 5 is connected with the rodless cavity of first hydraulic cylinder 1, the leakage fluid dram and first of the first check valve 5
The inlet of pressure adjustment relief valve 3 is connected, and the leakage fluid dram of the first pressure adjustment relief valve 3 is connected with the inlet of second one-way valve 6,
The leakage fluid dram of second one-way valve 6 is connected with the rodless cavity of second hydraulic cylinder 2；The inlet and second of the third check valve 7
The rodless cavity of hydraulic cylinder 2 is connected, and the leakage fluid dram of third check valve 7 is connected with the inlet of the second pressure adjustment relief valve 4, and second
The leakage fluid dram of pressure adjustment relief valve 4 is connected with the inlet of the 4th check valve 8, the leakage fluid dram of the 4th check valve 8 and first hydraulic
The rodless cavity of cylinder 1 is connected；First pressure gauge 9 is installed on straight-through fluid pressure line with the rodless cavity of the first hydraulic cylinder 1；
Second pressure gauge 10 is installed on straight-through fluid pressure line with the rodless cavity of the second hydraulic cylinder 2.
A kind of passive type automatic resisting applying method works as needs using the passive type automatic resisting applying mechanism
When providing positive resistance, the piston rod of first hydraulic cylinder 1 is pressurized, and increases the rodless cavity pressure of first hydraulic cylinder 1, and then make liquid
Pressure oil is flowed out from the rodless cavity of first hydraulic cylinder 1, after pressure reaches the setting cracking pressure of the first pressure adjustment relief valve 3, stream
Hydraulic oil out opens the first check valve 5 first, again opens second one-way valve 6 after flowing through the first pressure adjustment relief valve 3, finally flows
Enter the rodless cavity of second hydraulic cylinder 2, is finally connected the rodless cavity of first hydraulic cylinder 1 and the rodless cavity of second hydraulic cylinder 2, it is hydraulic
Positive resistance of oil during flowing into the rodless cavity of second hydraulic cylinder 2 from the rodless cavity of first hydraulic cylinder 1, needed for generating
Power.
By adjusting the cracking pressure of the first pressure adjustment relief valve 3, and then required positive resistance is changed, is led to simultaneously
It crosses first pressure gauge 9 and real-time display is carried out to set cracking pressure.
A kind of passive type automatic resisting applying method works as needs using the passive type automatic resisting applying mechanism
When providing reversed resistance, the piston rod of second hydraulic cylinder 2 is pressurized, and increases the rodless cavity pressure of second hydraulic cylinder 2, and then make liquid
Pressure oil is flowed out from the rodless cavity of second hydraulic cylinder 2, after pressure reaches the setting cracking pressure of the second pressure adjustment relief valve 4, stream
Hydraulic oil out opens third check valve 7 first, again opens the 4th check valve 8 after flowing through the second pressure adjustment relief valve 4, finally flows
Enter the rodless cavity of first hydraulic cylinder 1, is finally connected the rodless cavity of second hydraulic cylinder 2 and the rodless cavity of first hydraulic cylinder 1, it is hydraulic
Oil is during flowing into the rodless cavity of first hydraulic cylinder 1 from the rodless cavity of second hydraulic cylinder 2, by the reversed resistance needed for generating
Power.
By adjusting the cracking pressure of the second pressure adjustment relief valve 4, and then required reversed resistance is changed, is led to simultaneously
It crosses second pressure gauge 10 and real-time display is carried out to set cracking pressure.
In practical application, can need to complete unidirectional output pressure according to scene, unidirectionally export pulling force, bidirectional output pressure
Or bidirectional output pulling force, effectively extend the applicability of the utility model.
In practical application, the first pressure adjustment relief valve 3 and the second pressure adjustment relief valve 4 can also be replaced with proportioning valve or
Servo valve, and then realize the process control output of power, for simulating real working condition.
Scheme in embodiment is not the scope of patent protection to limit the utility model, all without departing from the utility model
Carried out by equivalence enforcement or change, be both contained in the scope of the patents of this case.
Claims (1)
1. a kind of passive type automatic resisting applying mechanism, it is characterised in that: adjusted including first hydraulic cylinder, second hydraulic cylinder, first
Pressurized overflow valve, the second pressure adjustment relief valve, the first check valve, second one-way valve, third check valve and the 4th check valve；Described first
The inlet of check valve is connected with the rodless cavity of first hydraulic cylinder, the leakage fluid dram of the first check valve and the first pressure adjustment relief valve
Inlet is connected, and the leakage fluid dram of the first pressure adjustment relief valve is connected with the inlet of second one-way valve, the row of second one-way valve
Liquid mouth is connected with the rodless cavity of second hydraulic cylinder；The inlet of the third check valve is connected with the rodless cavity of second hydraulic cylinder
Logical, the leakage fluid dram of third check valve is connected with the inlet of the second pressure adjustment relief valve, the leakage fluid dram of the second pressure adjustment relief valve and
The inlet of 4th check valve is connected, and the leakage fluid dram of the 4th check valve is connected with the rodless cavity of first hydraulic cylinder；With it is described
First pressure gauge is installed on the straight-through fluid pressure line of the rodless cavity of first hydraulic cylinder；It is straight with the rodless cavity of the second hydraulic cylinder
Second pressure gauge is installed on logical fluid pressure line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119526.8U CN209182011U (en) | 2018-12-17 | 2018-12-17 | A kind of passive type automatic resisting applying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119526.8U CN209182011U (en) | 2018-12-17 | 2018-12-17 | A kind of passive type automatic resisting applying mechanism |
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| Publication Number | Publication Date |
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| CN209182011U true CN209182011U (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119526.8U Active CN209182011U (en) | 2018-12-17 | 2018-12-17 | A kind of passive type automatic resisting applying mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN209182011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357861A (en) * | 2018-12-17 | 2019-02-19 | 沈阳理工大学 | A kind of passive type automatic resisting applying mechanism and method |
-
2018
- 2018-12-17 CN CN201822119526.8U patent/CN209182011U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357861A (en) * | 2018-12-17 | 2019-02-19 | 沈阳理工大学 | A kind of passive type automatic resisting applying mechanism and method |
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