CN209278233U - 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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- CN209278233U CN209278233U CN201822124202.3U CN201822124202U CN209278233U CN 209278233 U CN209278233 U CN 209278233U CN 201822124202 U CN201822124202 U CN 201822124202U CN 209278233 U CN209278233 U CN 209278233U
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- valve
- oil
- check valve
- rod chamber
- fuel tank
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Abstract
A kind of passive type automatic resisting applying mechanism, including fuel tank, slippage pump, hydraulic cylinder with double piston rods, oil return overflow valve, pressure adjustment relief valve, the first check valve, second one-way valve, third check valve and the 4th check valve；There is provided oil return path when positive resistance are as follows: the second rod chamber → four check valves → pressure adjustment relief valve → fuel tank of hydraulic cylinder with double piston rods；There is provided oil return path when reversed resistance are as follows: the first rod chamber of hydraulic cylinder with double piston rods → third check valve → pressure adjustment relief valve → fuel tank.Applying method are as follows: when providing positive resistance, positive piston rod is pressurized, and opens the 4th check valve and pressure adjustment relief valve is opened, hydraulic oil oil return box, while the first rod chamber synchronizes repairing；When providing reversed resistance, reversed piston rod is pressurized, and opens third check valve and pressure adjustment relief valve is opened, hydraulic oil oil return box, while the second rod chamber synchronizes repairing；By adjusting pressure-regulating overflow valve opening pressure, resistance is changed.
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, needs to complete required resistance by hydraulic station acting
The application of power causes the energy consumption of power applying mechanism 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
The application that required resistance is completed by hydraulic station acting, only passively applies resistance, considerably reduces power and applies machine
The energy consumption of structure.
To achieve the goals above, the utility model adopts the following technical solution: a kind of passive type automatic resisting application machine
Structure, including fuel tank, slippage pump, hydraulic cylinder with double piston rods, oil return overflow valve, pressure adjustment relief valve, the first check valve, second are unidirectionally
Valve, third check valve and the 4th check valve；The inlet port of the slippage pump is connected with fuel tank, three tunnels of oil discharge outlet point of slippage pump
Output, the first via are connected with the oil inlet of oil return overflow valve, and the second tunnel is connected with the oil inlet of the first check valve, third road
It is connected with the oil inlet of second one-way valve；The oil outlet of the oil return overflow valve is connected with fuel tank；First check valve
Oil outlet be connected with the first rod chamber of hydraulic cylinder with double piston rods；The oil outlet and double piston-rod liquid of the second one-way valve
Second rod chamber of cylinder pressure is connected；The oil outlet of the pressure adjustment relief valve is connected with fuel tank, the oil inlet of pressure adjustment relief valve
It is connected all the way with the oil outlet of third check valve, another way is connected with the oil outlet of the 4th check valve；The third is unidirectional
The oil inlet of valve is connected with the first rod chamber of hydraulic cylinder with double piston rods；The oil inlet and double piston-rod of 4th check valve
Second rod chamber of hydraulic cylinder is connected；First pressure gauge is installed on the fluid pressure line led directly to the slippage pump oil discharge outlet；
Second pressure gauge is installed on the fluid pressure line led directly to the pressure adjustment relief valve oil inlet.
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 positive piston rod of hydraulic cylinder with double piston rods is pressurized, and increases the second rod chamber pressure, and then make hydraulic
Oil is flowed out from the second rod chamber, and after pressure reaches the setting cracking pressure of pressure adjustment relief valve, the hydraulic oil of outflow pushes up first
The 4th check valve is opened, is returned in fuel tank after flowing through pressure adjustment relief valve；Meanwhile the positive piston rod of hydraulic cylinder with double piston rods is pressurized,
Make the first rod chamber pressure reduction, start slippage pump at this time, by slippage pump by fuel tank hydraulic oil extract out, extraction it is hydraulic
Oil opens the first check valve first, then flows into the first rod chamber, and the extra hydraulic oil of slippage pump extraction directly passes through oil return
Overflow valve returns in fuel tank；Hydraulic oil is during flowing back into fuel tank from the second rod chamber, by the positive resistance needed for generating.
By adjusting the cracking pressure of pressure adjustment relief valve, and then required positive resistance is changed, while passing through the
Two pressure gauges carry out real-time display 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 reversed piston rod of hydraulic cylinder with double piston rods is pressurized, and increases the first rod chamber pressure, and then make hydraulic
Oil is flowed out from the first rod chamber, and after pressure reaches the setting cracking pressure of pressure adjustment relief valve, the hydraulic oil of outflow pushes up first
Third check valve is opened, is returned in fuel tank after flowing through pressure adjustment relief valve；Meanwhile the reversed piston rod of hydraulic cylinder with double piston rods is pressurized,
Make the second rod chamber pressure reduction, start slippage pump at this time, by slippage pump by fuel tank hydraulic oil extract out, extraction it is hydraulic
Oil opens second one-way valve first, then flows into the second rod chamber, and the extra hydraulic oil of slippage pump extraction directly passes through oil return
Overflow valve returns in fuel tank；Hydraulic oil is during flowing back into fuel tank from the first rod chamber, by the reversed resistance needed for generating.
By adjusting the cracking pressure of pressure adjustment relief valve, and then required reversed resistance is changed, while passing through the
Two pressure gauges carry out real-time display to set cracking pressure.
The utility model has the beneficial effects that
The passive type automatic resisting applying mechanism of the utility model, completes required resistance without doing work by hydraulic station
Apply, only passively applies resistance, considerably reduce the energy consumption of power applying mechanism, while having and being skillfully constructed, structure
Simply, 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-fuel tank, 2-slippage pumps, 3-hydraulic cylinder with double piston rods, 4-oil return overflow valves, 5-pressure adjustment relief valves,
6-the first check valve, 7-second one-way valves, 8-third check valves, the 9-the four check valve, 10-first pressure gauges, 11-the
Two pressure gauges, the 12-the first rod chamber, the 13-the second rod chamber, 14-positive piston rods, 15-reversed piston rods.
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 fuel tank 1, slippage pump 2, hydraulic cylinder with double piston rods
3, oil return overflow valve 4, pressure adjustment relief valve 5, the first check valve 6, second one-way valve 7, third check valve 8 and the 4th check valve 9；Institute
The inlet port for stating slippage pump 2 is connected with fuel tank 1, three tunnels of the oil discharge outlet point output of slippage pump 2, the first via and oil return overflow valve 4
Oil inlet be connected, the second tunnel is connected with the oil inlet of the first check valve 6, the oil inlet on third road and second one-way valve 7
It is connected；The oil outlet of the oil return overflow valve 4 is connected with fuel tank 1；The oil outlet and double piston-rod of first check valve 6
First rod chamber 12 of hydraulic cylinder 3 is connected；The oil outlet of the second one-way valve 7 has with the second of hydraulic cylinder with double piston rods 3
Rod cavity 13 is connected；The oil outlet of the pressure adjustment relief valve 5 is connected with fuel tank 1, and the oil inlet of pressure adjustment relief valve 5 is all the way with
The oil outlet of three check valves 8 is connected, and another way is connected with the oil outlet of the 4th check valve 9；The third check valve 8 into
Hydraulic fluid port is connected with the first rod chamber 12 of hydraulic cylinder with double piston rods 3；The oil inlet and double piston-rod liquid of 4th check valve 9
Second rod chamber 13 of cylinder pressure 3 is connected；First pressure gauge is installed on the fluid pressure line led directly to 2 oil discharge outlet of slippage pump
10；Second pressure gauge 11 is installed on the fluid pressure line led directly to 5 oil inlet of pressure adjustment relief valve.
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 positive piston rod 14 of hydraulic cylinder with double piston rods 3 is pressurized, and increases 13 pressure of the second rod chamber, in turn
Flow out hydraulic oil from the second rod chamber 13, after pressure reaches the setting cracking pressure of pressure adjustment relief valve 5, outflow it is hydraulic
Oil opens the 4th check valve 9 first, returns in fuel tank 1 after flowing through pressure adjustment relief valve 5；Meanwhile the forward direction of hydraulic cylinder with double piston rods 3
Piston rod 14 is pressurized, and makes 12 pressure reduction of the first rod chamber, starts slippage pump 2 at this time, by slippage pump 2 by the liquid in fuel tank 1
Pressure oil extraction, the hydraulic oil of extraction open the first check valve 6 first, then flow into the first rod chamber 12, what slippage pump 2 was extracted out
Extra hydraulic oil directly passes through oil return overflow valve 4 and returns in fuel tank 1；Hydraulic oil is flowing back into fuel tank 1 from the second rod chamber 13
In the process, by the positive resistance needed for generating.
By adjusting the cracking pressure of pressure adjustment relief valve 5, and then required positive resistance is changed, while passing through the
Two pressure gauges 11 carry out real-time display 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 reversed piston rod 15 of hydraulic cylinder with double piston rods 3 is pressurized, and increases 12 pressure of the first rod chamber, in turn
Flow out hydraulic oil from the first rod chamber 12, after pressure reaches the setting cracking pressure of pressure adjustment relief valve 5, outflow it is hydraulic
Oil opens third check valve 8 first, returns in fuel tank 1 after flowing through pressure adjustment relief valve 5；Meanwhile hydraulic cylinder with double piston rods 3 is reversed
Piston rod 15 is pressurized, and makes 13 pressure reduction of the second rod chamber, starts slippage pump 2 at this time, by slippage pump 2 by the liquid in fuel tank 1
Pressure oil extraction, the hydraulic oil of extraction open second one-way valve 7 first, then flow into the second rod chamber 13, what slippage pump 2 was extracted out
Extra hydraulic oil directly passes through oil return overflow valve 4 and returns in fuel tank 1；Hydraulic oil is flowing back into fuel tank 1 from the first rod chamber 12
In the process, by the reversed resistance needed for generating.
By adjusting the cracking pressure of pressure adjustment relief valve 5, and then required reversed resistance is changed, while passing through the
Two pressure gauges 11 carry out real-time display to set cracking pressure.
In practical application, pressure adjustment relief valve 5 can also be replaced with to proportioning valve or servo valve, and then realize the journey of power
Sequence control output, 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: including fuel tank, slippage pump, hydraulic cylinder with double piston rods, return
Oil-overflow valve, pressure adjustment relief valve, the first check valve, second one-way valve, third check valve and the 4th check valve；The slippage pump
Inlet port is connected with fuel tank, and three tunnels of the oil discharge outlet point output of slippage pump, the first via is connected with the oil inlet of oil return overflow valve,
Second tunnel is connected with the oil inlet of the first check valve, and third road is connected with the oil inlet of second one-way valve；The oil return is overflow
The oil outlet of stream valve is connected with fuel tank；First rod chamber phase of the oil outlet of first check valve and hydraulic cylinder with double piston rods
Connection；The oil outlet of the second one-way valve is connected with the second rod chamber of hydraulic cylinder with double piston rods；The pressure adjustment relief valve
Oil outlet be connected with fuel tank, the oil inlet of pressure adjustment relief valve is connected with the oil outlet of third check valve all the way, another way
It is connected with the oil outlet of the 4th check valve；The oil inlet of the third check valve and the first rod chamber of hydraulic cylinder with double piston rods
It is connected；The oil inlet of 4th check valve is connected with the second rod chamber of hydraulic cylinder with double piston rods；With the slippage pump
First pressure gauge is installed on the straight-through fluid pressure line of oil discharge outlet；On the fluid pressure line led directly to the pressure adjustment relief valve oil inlet
Second pressure gauge is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822124202.3U CN209278233U (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 |
|---|---|---|---|
| CN201822124202.3U CN209278233U (en) | 2018-12-17 | 2018-12-17 | A kind of passive type automatic resisting applying mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278233U true CN209278233U (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822124202.3U Active CN209278233U (en) | 2018-12-17 | 2018-12-17 | A kind of passive type automatic resisting applying mechanism |
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| CN (1) | CN209278233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404352A (en) * | 2018-12-17 | 2019-03-01 | 沈阳理工大学 | A kind of passive type automatic resisting applying mechanism and method |
-
2018
- 2018-12-17 CN CN201822124202.3U patent/CN209278233U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404352A (en) * | 2018-12-17 | 2019-03-01 | 沈阳理工大学 | A kind of passive type automatic resisting applying mechanism and method |
| CN109404352B (en) * | 2018-12-17 | 2024-01-30 | 沈阳理工大学 | Passive automatic resistance applying mechanism and method |
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