CN109211541A - A kind of fluid pressure type spring fatigue tester - Google Patents
A kind of fluid pressure type spring fatigue tester Download PDFInfo
- Publication number
- CN109211541A CN109211541A CN201710526292.6A CN201710526292A CN109211541A CN 109211541 A CN109211541 A CN 109211541A CN 201710526292 A CN201710526292 A CN 201710526292A CN 109211541 A CN109211541 A CN 109211541A
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- China
- Prior art keywords
- solenoid valve
- import
- export
- oil pipe
- hydraulic cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a kind of fluid pressure type spring fatigue tester, including fuel tank, hydraulic oil pump, double acting hydraulic cylinder and multiple support rods, the fuel tank is connect by oil pipe with hydraulic pump inlet, the hydraulic pump outlet is connect with the first solenoid valve and second solenoid valve respectively by oil pipe, the double acting hydraulic cylinder includes first import and export, second import and export and piston rod, the present invention carries out fatigue test to spring using double acting hydraulic cylinder, it is strong with stability, compression frequency is low, the features such as compressing great efforts, the large and medium-sized spring suitable for low cycle fatigue test request；The opening and closing of solenoid valve are controlled by limit switch, and then change the direction of motion of piston rod, by adjusting position and the distance of limit switch, the present invention are made to be suitable for the spring of different height and different compression degree requirements.
Description
Technical field
The invention belongs to spring experimental provision fields, and in particular to a kind of fluid pressure type spring fatigue tester.
Background technique
Spring is common buffer unit in life, and with the development of science and technology, the fatigue strength test instrument of spring is more
Kind multiplicity.Now on the market be essentially all the high-precision fatigue strength test instrument of micro computer control, can be used for various springs or
The fatigue strength test of damper, and measuring technology parameter can be adjusted according to different test specimens.These testers by
Various and applied widely in function, price is naturally very high.And it test for general spring fatigue intensity or only needs to survey
A kind of fatigue strength of spring is tried, these testers undoubtedly cause the waste of cost.
Summary of the invention
Goal of the invention: being directed to the deficiencies in the prior art, and the present invention provides a kind of fluid pressure type spring fatigue tester.
Technical solution: for achieving the above object, The technical solution adopted by the invention is as follows:
A kind of fluid pressure type spring fatigue tester, including fuel tank, hydraulic oil pump, double acting hydraulic cylinder and multiple support rods,
The fuel tank is connect by oil pipe with hydraulic pump inlet, the hydraulic pump outlet pass through oil pipe respectively with the first solenoid valve and second
Solenoid valve connection, the double acting hydraulic cylinder includes first import and export, second import and export and piston rod, first solenoid valve and
Second solenoid valve is successively connect by oil pipe with the first import and export and second import and export, the first import and export and second into
Outlet is also connected with third solenoid valve and the 4th solenoid valve in turn by oil pipe, and the third solenoid valve and the 4th solenoid valve pass through
Oil pipe is connect with fuel tank, and the multiple support rod is vertically arranged, and upper/lower terminal is respectively fixed with top plate and bottom plate, described double
Acting cylinder is fixed on the top plate, and the piston-rod lower end is fixed with support, is fixed with top board on the downside of the support,
The top board is equipped with the circular hole passed through for the support rod, and one in the multiple support rod is equipped with the first limit switch
With the second limit switch, first limit switch and the second limit switch are to control the first solenoid valve, second solenoid valve,
The opening and closing of three solenoid valves and the 4th solenoid valve are fixed with pedestal on the bottom plate.
Preferably, the hydraulic pump outlet is also connected with a relief valve by pipeline, the relief valve passes through with fuel tank
Oil pipe connection.
Preferably, the double acting hydraulic cylinder is single-piston hydraulic cylinder.
Preferably, the pedestal is equipped with the spring base of groove-like.
Preferably, the top board is equipped with the indent of groove-like.
The utility model has the advantages that the present invention carries out fatigue test to spring using double acting hydraulic cylinder, have stability strong, compression frequency
The features such as rate is low, compresses great efforts, the large and medium-sized spring suitable for low cycle fatigue test request；Electromagnetism is controlled by limit switch
The opening and closing of valve, and then change the direction of motion of piston rod, by adjusting position and the distance of limit switch, make the present invention
The spring required suitable for different height and different compression degrees.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fluid pressure type spring fatigue tester；
Fig. 2 is fluid pressure type spring fatigue tester hydraulic scheme；
Specific embodiment
Below with reference to specific attached drawing, the present invention is furture elucidated, and present embodiment before being with technical solution of the present invention
It puts and is implemented, it should be understood that these modes are only illustrative of the invention and is not intended to limit the scope of the invention.
As shown in Figure 1, the embodiment of the invention discloses a kind of fluid pressure type spring fatigue tester, it includes fuel tank 1, hydraulic
Oil pump 2, double acting hydraulic cylinder 3 and multiple support rods 4, fuel tank 1 are connect by oil pipe with 2 import of hydraulic pump, and the outlet of hydraulic pump 2 is logical
It crosses oil pipe to connect with the first solenoid valve 5 and second solenoid valve 6 respectively, the double acting hydraulic cylinder 3 that the present invention uses is preferably single living
Hydraulic cylinder is filled in, it includes first import and export 31, second import and export 32 and piston rod 33, and the first solenoid valve 5 and second solenoid valve 6 are logical
Oil pipe is crossed successively to connect with first import and export 31 and second import and export 32, the first solenoid valve 5 and second solenoid valve 6 for control to
First inlet port 31 and second import and export 32 are also successively connected for hydraulic oil, first import and export 31 and second import and export 32 by oil pipe
It is connected to third solenoid valve 7 and the 4th solenoid valve 8, third solenoid valve 7 and the 4th solenoid valve 8 are for controlling first import and export 31 and the
Two inlet and outlet 32 it is fuel-displaced, third solenoid valve 7 and the 4th solenoid valve 8 are connect by oil pipe with fuel tank 1, will be from first import and export 31
It returns and is discharged in fuel tank 1 with the hydraulic oil that second import and export 32 is discharged.
As shown in Figure 1, multiple support rods 4 are vertically arranged, 4 upper/lower terminal of support rod is respectively fixed with top plate 9 and bottom plate
10, pedestal 15 is fixed on bottom plate 10.Double acting hydraulic cylinder 3 is bolted on top plate 9, and 33 lower end of piston rod is fixed with
Support 11 is fixed with top board 12 on the downside of support 11, and top board 12 is equipped with multiple circular holes passed through for the support rod 4, more
One in a support rod 4 is equipped with the first limit switch 13 and the second limit switch 14, the first limit switch 13 and the second limit
Opening and closing of the switch 14 to control the first solenoid valve 5, second solenoid valve 6, third solenoid valve 7 and the 4th solenoid valve 8, this
Hydraulic cylinder when just putting into operation, open, 31 oil inlet of first import and export, second import and export by the first solenoid valve 5 and the 4th solenoid valve 8
32 is fuel-displaced, and piston rod 33 drives top board 12 to run down, compressed spring.After reaching the position of the second limit switch 14, the
One solenoid valve 5 and the 4th solenoid valve 8 are closed, and second solenoid valve 6 and third solenoid valve 7 are opened, and first import and export 31 is fuel-displaced, and second
32 oil inlets are imported and exported, piston rod 33 drives top board 12 to run up, and spring is gradually recovered original shape.When operation to the first limit is opened
When closing 13 position, the first solenoid valve 5 and the 4th solenoid valve 8 are opened, and 31 oil inlet of first import and export, second import and export 32 is fuel-displaced, living
Stopper rod 33 drives top board 12 to run down, and continues compressed spring, so recycles.
The load that double acting hydraulic cylinder 3 is born in order to prevent is excessive, the hypertonia for causing hydraulic pump 2 to export, hydraulic
2 outlet of pump is also connected with a relief valve 16 by pipeline, and relief valve 16 is connect with fuel tank 1 by oil pipe.
Spring occurs to press inclined and side between pedestal 15 and top board 12 in compression process because distorting in order to prevent
Sliding phenomenon is equipped with the spring base 17 of groove-like on pedestal 15, and the indent 18 of groove-like is equipped on top board 12.
In conclusion the present invention carries out fatigue test to spring using double acting hydraulic cylinder, have stability strong, compression frequency
The features such as rate is low, compresses great efforts, the large and medium-sized spring suitable for low cycle fatigue test request；Electromagnetism is controlled by limit switch
The opening and closing of valve, and then change the direction of motion of piston rod, by adjusting position and the distance of limit switch, make the present invention
The spring required suitable for different height and different compression degrees.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of fluid pressure type spring fatigue tester, which is characterized in that including fuel tank, hydraulic oil pump, double acting hydraulic cylinder and more
A support rod, the fuel tank are connect by oil pipe with hydraulic pump inlet, and the hydraulic pump outlet is electric with first respectively by oil pipe
Magnet valve is connected with second solenoid valve, and the double acting hydraulic cylinder includes first import and export, second import and export and piston rod, and described
One solenoid valve and second solenoid valve are successively connect with the first import and export and second import and export by oil pipe, first disengaging
Mouth and second import and export pass through oil pipe and are also connected with third solenoid valve and the 4th solenoid valve, the third solenoid valve and the 4th in turn
Solenoid valve is connect by oil pipe with fuel tank, and the multiple support rod is vertically arranged, and upper/lower terminal is respectively fixed with top plate and bottom
Plate, the double acting hydraulic cylinder are fixed on the top plate, and the piston-rod lower end is fixed with support, are fixed on the downside of the support
There is a top board, the top board is equipped with the circular hole passed through for the support rod, and one in the multiple support rod is equipped with the
One limit switch and the second limit switch, first limit switch and the second limit switch are to control the first solenoid valve,
The opening and closing of two solenoid valves, third solenoid valve and the 4th solenoid valve are fixed with pedestal on the bottom plate.
2. a kind of fluid pressure type spring fatigue tester according to claim 1, which is characterized in that the hydraulic pump outlet is logical
It crosses pipeline and is also connected with a relief valve, the relief valve is connect with fuel tank by oil pipe.
3. a kind of fluid pressure type spring fatigue tester according to claim 1, which is characterized in that the double acting hydraulic cylinder
For single-piston hydraulic cylinder.
4. a kind of fluid pressure type spring fatigue tester according to claim 1, which is characterized in that the pedestal is equipped with recessed
The spring base of channel-shaped.
5. a kind of fluid pressure type spring fatigue tester according to claim 1, which is characterized in that the top board is equipped with
The indent of groove-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526292.6A CN109211541A (en) | 2017-06-30 | 2017-06-30 | A kind of fluid pressure type spring fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710526292.6A CN109211541A (en) | 2017-06-30 | 2017-06-30 | A kind of fluid pressure type spring fatigue tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109211541A true CN109211541A (en) | 2019-01-15 |
Family
ID=64977230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710526292.6A Pending CN109211541A (en) | 2017-06-30 | 2017-06-30 | A kind of fluid pressure type spring fatigue tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109211541A (en) |
-
2017
- 2017-06-30 CN CN201710526292.6A patent/CN109211541A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |
|
| WD01 | Invention patent application deemed withdrawn after publication |