CN111734716A - Three-cavity hydraulic cylinder test bed - Google Patents
Three-cavity hydraulic cylinder test bed Download PDFInfo
- Publication number
- CN111734716A CN111734716A CN202010671055.0A CN202010671055A CN111734716A CN 111734716 A CN111734716 A CN 111734716A CN 202010671055 A CN202010671055 A CN 202010671055A CN 111734716 A CN111734716 A CN 111734716A
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- hydraulic cylinder
- base
- cavity hydraulic
- cylinder
- cross beam
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000009434 installation Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000009863 impact test Methods 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 4
- 238000005381 potential energy Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to the technical field of hydraulic equipment, and particularly discloses a three-cavity hydraulic cylinder test bench which comprises a base, a stand column, a cross beam, a guide device, a lower fixed seat, a heavy object and a three-cavity hydraulic cylinder, wherein a row of T-shaped grooves are formed in the upper surface of the base; the vertical column and the cross beam are respectively provided with a row of threaded holes, and the hydraulic cylinder test device can realize loading with different weights and testing of hydraulic cylinders with different strokes through lever and gear adjustment; the loading with different weights can be realized by changing the hinged position of the three-cavity hydraulic cylinder and the cross beam, the gravity loading test of the oil cylinders with different lengths can be realized by the hinged position of the cross beam and the upright post, and the real working conditions of the three-cavity hydraulic cylinder, the variable-amplitude oil cylinder of the excavator and the like can be simulated; the test bed can be used for carrying out pressure test, gravity impact test, oil cylinder buffer performance and other tests on the oil cylinder.
Description
Technical Field
The invention belongs to the technical field of hydraulic equipment, and particularly discloses a three-cavity hydraulic cylinder test bed.
Background
At present, a lot of machines lift heavy objects through hydraulic cylinders, particularly, hydraulic cylinders are generally adopted on engineering machines such as automobile cranes, excavators and the like to lift the heavy objects, potential energy of a self device for lifting the heavy objects is wasted when the potential energy descends, the three-cavity hydraulic cylinder and an energy accumulator are combined to recover the gravitational potential energy of the self device, and the existing three-cavity hydraulic cylinder is applied to the excavators and oil pumping units, so that the existing three-cavity hydraulic cylinder has relatively few or even no test equipment, tests can only be carried out on the excavators, and the test bench can be used for detecting the performance and the quality of the three-cavity hydraulic cylinder and simulating potential energy recovery tests.
Disclosure of Invention
In view of this, the invention provides a three-cavity hydraulic cylinder test bed which is simple in structure and can realize loading with different weights and testing of three-cavity hydraulic cylinders with different strokes through lever and gear adjustment.
A three-cavity hydraulic cylinder test bed comprises a base, a stand column, a cross beam, a guide device, a heavy object and a three-cavity hydraulic cylinder;
a row of T-shaped grooves are formed in the base, so that the upright posts, the guide device, the lower fixing seat and the three-cavity hydraulic cylinder are conveniently fixed on the base, and the three-cavity hydraulic cylinder can move left and right and back and forth;
one end of the upright post is fixedly connected with the T-shaped groove of the base, a row of threaded holes are formed in the upper surface of the upright post, the position of the cross beam hinged with the upright post can be adjusted, and the three-cavity hydraulic cylinders with different strokes can be tested;
one end of the beam is hinged with the upright column, a plurality of threaded holes are formed in the proper position of the beam, and loading tests with different weights can be realized by hinging the three-cavity hydraulic cylinder with different threaded holes in the beam;
the lower end of the guide device is fixedly connected with the base through a bolt, and the guide device clamps the oil cylinder through six special screws and can provide a guide effect for the oil cylinder;
the weight is fixedly connected with one end of the cross beam, and because the test conditions are limited, the test weight cannot be too heavy, a row of threaded holes are formed in the cross beam, so that the test on different weights can be realized through the lever principle, the weight does not need to be replaced, and the test is convenient;
has the advantages that:
(1) the invention can realize the loading of different weights and the testing of hydraulic cylinders with different strokes by utilizing the lever principle and gear adjustment; the loading of different weights can be realized by changing the hinged position of the three-cavity hydraulic cylinder and the cross beam, the gravity loading test of the oil cylinders with different lengths can be realized by changing the hinged position of the cross beam and the upright post, and the installation is simple and reliable.
(2) The experimental bench is also provided with a guide device, the guide device clamps the oil cylinder through six special screws, and can provide a guide effect for the oil cylinder, so that the stability of the tested three-cavity hydraulic cylinder in the experimental process is ensured, the tested hydraulic cylinder is prevented from generating an eccentric load force, and the safety of the experiment is ensured.
Drawings
FIG. 1 is a structural diagram of a three-cavity hydraulic cylinder test bed according to the present invention;
FIG. 2 is a top view of a three-cavity hydraulic cylinder test bed;
FIG. 3 is a front view of the guide;
FIG. 4 is a top view of the guide;
wherein, 1-upright column, 2-guiding device, 3-lower fixed seat, 4-beam, 5-three-cavity hydraulic cylinder, 6-heavy object, 7-base;
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings;
as shown in attached drawings 1 and 2, the invention provides a three-cavity hydraulic cylinder test bed, which comprises an upright post (1), a guide device (2), a lower fixed seat (3), a cross beam (4), a three-cavity hydraulic cylinder (5), a heavy object (6) and a base (7);
a row of T-shaped grooves are formed in the base (7), so that the upright column (1), the guide device (2) and the three-cavity hydraulic cylinder (5) can be conveniently fixed on the base, and the experimental device can also move left and right and back and forth, and is convenient to disassemble and assemble.
Open above stand (1) and have one row of screw holes, can adjust crossbeam (4) and stand (1) articulated position, can realize testing the three chamber pneumatic cylinders of different strokes, the welding has the steel sheet that links to each other with the bottom plate below the stand, opens threaded hole on the steel sheet, links together steel sheet and T type groove with the bolt, just so can fix the stand on the base, easy dismounting.
Crossbeam (4) one end is articulated with the stand, can be round the bolt rotation from top to bottom, and when three chamber pneumatic cylinder (5) stretched out, the crossbeam upwards rotated, and the crossbeam is rotatory downwards during the withdrawal, opens some screw holes in the crossbeam suitable position, is connected the earrings of three chamber jars and the screw hole of keeping away from the heavy object, then can realize than great heavy load test, otherwise, can realize the loading test of different weights through the articulated of different screw holes on three chamber pneumatic cylinder and the crossbeam like.
The guide device (2) is composed of a hollow cylinder with four threaded holes and a support, one end of the support is welded with the surface of the cylinder, the other end of the support is connected with a T-shaped groove of the base (7) through the threaded holes, the oil cylinder is clamped through four special screws, and a guide effect can be provided for the oil cylinder.
The installation relation is as follows: base (7) and ground are fixed, link together through bolt and T type groove on the base, crossbeam (4) are articulated together through bolt and stand (1), the crossbeam can select suitable screw hole according to the stroke of the three chamber pneumatic cylinder of being tried, in order to satisfy the experiment requirement, the last earrings of three chamber pneumatic cylinder (5) and the screw hole of crossbeam are articulated together, the lower earrings are articulated together with the fixing base on the base, can change three chamber pneumatic cylinder and the articulated screw hole of crossbeam, just so can realize the test of different heavy loads, guider is articulated fixed by support lower extreme and base, press from both sides tightly the hydro-cylinder through six special screws, can provide the guide effect for the hydro-cylinder, the stability of the three chamber pneumatic cylinder of being tried in the experimentation has been guaranteed, prevent that the pneumatic cylinder of being tried from producing the unbalance loading power, thereby guarantee the safety of experiment.
The working principle is as follows: two earrings of the three-cavity hydraulic cylinder (5) are arranged on the cross beam and the fixed seat through pin shafts, reciprocating motion performance tests, loading performance tests, pressure resistance tests and the like in a certain time period are carried out on the tested three-cavity hydraulic cylinder by adjusting the hinged position of the three-cavity hydraulic cylinder and the cross beam (4), and the three-cavity hydraulic cylinders with different lengths are installed by adjusting the hinged position of the cross beam (4) and the upright post (1) according to the sizes of the different three-cavity hydraulic cylinders.
The cross beam and the fixed seat of the test bed can be manufactured according to different installation forms of the tested three-cavity hydraulic cylinder.
The base is characterized in that a whole large thick iron plate is provided with a T-shaped groove and fixed on the ground, so that the structure is stable; loading with different weights and testing of hydraulic cylinders with different strokes can be realized through the lever principle and gear adjustment, and the universality is high; the experiment bench has a single structure, is easy to install and is convenient to operate and implement; the test bed is invented for testing the three-cavity hydraulic cylinder, and can be popularized to load tests of common oil cylinders.
In summary, the above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A three-cavity hydraulic cylinder test bed comprises a stand column (1), a guide device (2), a lower fixed seat (3), a cross beam (4), a three-cavity hydraulic cylinder (5), a heavy object (6) and a base (7);
a row of T-shaped grooves are formed in the base (7), so that the upright posts (1), the guide device (2) and the three-cavity hydraulic cylinder (5) can be conveniently fixed on the base and can move left and right and back and forth;
one end of the upright post (1) is fixedly connected with the T-shaped groove of the base (7), a row of threaded holes are formed in the upright post, the position where the cross beam (4) is hinged with the upright post can be adjusted, and three-cavity hydraulic cylinders with different strokes can be tested;
one end of the cross beam (4) is hinged with the upright post (1), a plurality of threaded holes are formed in the proper position of the cross beam, and loading tests with different weights can be realized by hinging the three-cavity hydraulic cylinder with different threaded holes in the cross beam;
the guide device (2) is composed of a hollow cylinder with 4 threaded holes and a support, one end of the support is welded with the surface of the cylinder, the other end of the support is connected with a T-shaped groove of a base through the threaded holes, the support is composed of two upright columns, a row of threaded holes are formed in the upright columns, the guide device is suitable for guiding the hydraulic cylinders with three cavities and different lengths, the oil cylinders are clamped through four special screws, and the guide device can provide a guide effect for the oil cylinders.
The installation relation is as follows: base (7) and ground are fixed, link together through bolt and T type groove on the base, crossbeam (4) are together articulated through bolt and stand, the crossbeam can select suitable screw hole according to the stroke of the three chamber pneumatic cylinders of being tested, in order to satisfy the experimental requirement, the last earrings of three chamber pneumatic cylinders and the screw hole of crossbeam are together articulated, the lower earrings is together articulated with the fixing base on base (7), can change three chamber pneumatic cylinders and crossbeam (4) articulated screw hole, just so can realize the test of different heavy loads, guider (2) are fixed by support lower extreme and base are articulated, press from both sides tightly the hydro-cylinder through four special screws, can provide the guide effect for the hydro-cylinder.
2. The three-cavity hydraulic cylinder test bed according to claim 1, wherein a row of T-shaped grooves are formed in the base, so that the upright posts (1), the guide device (2) and the three-cavity hydraulic cylinder (5) can be conveniently fixed on the base (7), and the three-cavity hydraulic cylinder test bed can move left and right and back and forth, is simple in structure and is convenient to disassemble and assemble.
3. The three-cavity hydraulic cylinder test bed as claimed in claim 1, wherein the columns and the beams are provided with a row of threaded holes, and hydraulic cylinders with different weights and strokes can be loaded for testing according to lever and gear adjustment.
4. The three-cavity hydraulic cylinder test bed according to claim 1, wherein the test bed further comprises a guide device, the guide device (2) comprises a hollow cylinder with four threaded holes and a support, one end of the support is welded with the surface of the cylinder, the other end of the support is connected with a T-shaped groove of the base through the threaded holes, the oil cylinder is clamped through six special screws, a guide effect is provided for the oil cylinder, the stability of the tested three-cavity hydraulic cylinder in the test process is ensured, the tested hydraulic cylinder is prevented from generating unbalance loading force, and therefore the safety of the test is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010671055.0A CN111734716A (en) | 2020-07-14 | 2020-07-14 | Three-cavity hydraulic cylinder test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010671055.0A CN111734716A (en) | 2020-07-14 | 2020-07-14 | Three-cavity hydraulic cylinder test bed |
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| Publication Number | Publication Date |
|---|---|
| CN111734716A true CN111734716A (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010671055.0A Pending CN111734716A (en) | 2020-07-14 | 2020-07-14 | Three-cavity hydraulic cylinder test bed |
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| CN (1) | CN111734716A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283205A (en) * | 2020-10-21 | 2021-01-29 | 浙江大学 | Electric hydrostatic actuator lever loading test bed and loading test method |
-
2020
- 2020-07-14 CN CN202010671055.0A patent/CN111734716A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283205A (en) * | 2020-10-21 | 2021-01-29 | 浙江大学 | Electric hydrostatic actuator lever loading test bed and loading test method |
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Application publication date: 20201002 |