CN115343070A - Endurance test device and method for automobile rubber shock absorber - Google Patents
Endurance test device and method for automobile rubber shock absorber Download PDFInfo
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- CN115343070A CN115343070A CN202210955982.4A CN202210955982A CN115343070A CN 115343070 A CN115343070 A CN 115343070A CN 202210955982 A CN202210955982 A CN 202210955982A CN 115343070 A CN115343070 A CN 115343070A
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Abstract
The invention discloses an endurance test device and an endurance test method for an automobile rubber shock absorber, and relates to the field of rubber shock absorbers. The utility model provides an automobile rubber shock absorber's endurance test device, includes the inside box that is equipped with test chamber, drive chamber, still includes: the vertical rods are symmetrically and fixedly connected in the test cavity; the extrusion plate is connected to the vertical rod in a sliding manner; the tension spring is sleeved on the vertical rod, and two ends of the tension spring are respectively fixedly connected with the lower sides of the extrusion plate and the test cavity; the supporting plate is symmetrically and fixedly connected to the lower end, close to the extrusion plate, in the test cavity; the rotating rod is rotatably connected between the two supporting plates; the rubber damper durability test device can truly simulate various working scenes and maximally restore the actual state of the rubber damper, so that the durability of the rubber damper can be truly reflected when the rubber damper is subjected to a durability test, the test accuracy is effectively improved, and the rubber damper durability test device is suitable for popularization and use.
Description
Technical Field
The invention belongs to the technical field of rubber shock absorbers, and particularly relates to a durability test device and a durability test method for an automobile rubber shock absorber.
Background
Rubber shock absorbers for automobiles are used as an important shock absorption element, and are widely applied to various machines, automobiles, railway locomotives, water transportation tools, airplanes and other aircrafts, and the rubber shock absorbers for automobiles are widely applied because the rubber shock absorbers can freely determine the shape, and the hardness is controlled by adjusting the components of the rubber formula, so that the requirements on the rigidity and the strength in all directions can be met; the internal friction is large, the damping effect is good, and the damping device is beneficial to crossing a resonance region and attenuating high-frequency vibration and noise; the elastic modulus is much smaller than that of metal, and larger elastic deformation can be generated; the sliding part is not arranged, and the maintenance is easy; the weight is small, and the installation and the disassembly are convenient; the impact rigidity is higher than static rigidity and dynamic rigidity, which is beneficial to impact deformation.
After the production of the rubber shock absorber is finished, the rubber shock absorber needs to be subjected to a durability test, but the rubber shock absorber can only be repeatedly compressed when being tested by the conventional test equipment, so that the rebound effect of the rubber shock absorber is detected.
Disclosure of Invention
The technical problem underlying the present invention is to overcome the drawbacks of the prior art and to provide an energy-efficient automatic painting installation for door and window profiles which overcomes or at least partially solves the above mentioned problems.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an endurance test device of car rubber shock absorber ware, includes the inside box that is equipped with test chamber, drive chamber, still includes: the vertical rods are symmetrically and fixedly connected in the test cavity; the extrusion plate is connected to the vertical rod in a sliding manner; the tension spring is sleeved on the vertical rod, and two ends of the tension spring are respectively fixedly connected with the lower sides of the extrusion plate and the test cavity; the supporting plate is symmetrically and fixedly connected to the lower end, close to the extrusion plate, in the test cavity; the rotating rod is rotatably connected between the two supporting plates; the eccentric discs are symmetrically and fixedly connected to the rotating rod; the second chain wheel is fixedly connected between the rotating rod and the two eccentric discs; the driving mechanism is used for driving the second chain wheel to rotate and is arranged in the driving cavity; the hydraulic lifting column is arranged at the upper end inside the test cavity; the fixing assembly is used for fixing the rubber shock absorber and is arranged at the telescopic end of the hydraulic lifting column; the heating box and the refrigerating box are respectively and fixedly connected to two sides of the box body close to the test cavity, and air outlets extend into the test cavity; and the air supply assembly is used for supplying air to the heating box and the refrigerating box independently and is arranged in the driving cavity and connected with the output end of the driving mechanism.
In order to facilitate the work of the control extrusion plate and the air supply assembly, the driving mechanism further comprises a driving motor, an output shaft and a first chain wheel, the driving motor is fixedly connected to the side wall in the driving cavity, the output shaft is rotatably connected in the driving cavity, one end of the output shaft close to the driving motor is fixedly connected with the output end of the driving motor, and the first chain wheel is fixedly connected to the output shaft under the position close to the second chain wheel and connected with the second chain wheel through a chain.
In order to facilitate the gas conveying to the heating box and the refrigerating box, furthermore, the gas supply assembly comprises a first cylinder, a second cylinder, a piston rod with a piston, an eccentric wheel and a ratchet wheel, wherein the first cylinder and the second cylinder are respectively arranged on two sides of a first chain wheel, and are symmetrically provided with two groups, the piston rod is slidably connected into the first cylinder and the second cylinder, the ratchet wheel is symmetrically arranged on two sides of an output shaft and respectively positioned between the first cylinder and the second cylinder of each group, the acting directions of the ratchet wheels are opposite, the eccentric wheel is sleeved on the ratchet wheel, a circle of T-shaped chute is formed in the outer ring of the eccentric wheel, one end of the piston rod close to the eccentric wheel is fixedly connected with a T-shaped block, the T-shaped block is slidably connected into the T-shaped chute, the gas outlet of the first cylinder is communicated with the gas inlet of the heating box, the gas outlet of the second cylinder is communicated with the gas inlet of the refrigerating box through a gas pipe, and the gas inlet of the first cylinder and the second cylinder is fixedly connected with a one-way valve.
In order to fix the rubber shock absorber for the convenience, furtherly, fixed subassembly includes concave type splint, bolt, fixed plate, the flexible end at hydraulic lifting column is installed to concave type splint, the bolt passes through the screw thread symmetry and rotates the both sides of connecting at concave type splint, the fixed plate symmetry sets up in the inside both sides of concave type splint, and with adjacent the bolt rotates and connects.
In order to facilitate the flexible connection of the fixing component and the rubber damper, further, an arc-shaped elastic plate is fixedly connected to one side of the fixing plate, which is far away from the bolt.
In order to facilitate carrying out angle modulation to rubber shock absorber, further, experimental intracavity portion upper end is equipped with spacing spout, sliding connection has the slider in the spacing spout, the upper end and the slider fixed connection of hydraulic pressure lift post, the bilateral symmetry of hydraulic pressure lift post is equipped with the inflator, fixed connection between inflator and the montant, sliding connection has the regulation pole in the inflator, be equipped with the tensioning spring in the inflator, the both ends of tensioning spring are close to one side of montant, regulation pole fixed connection with the inflator respectively, the one end and the hydraulic pressure lift post fixed connection that tensioning spring was kept away from to the regulation pole, a plurality of gas outlets, every have all been seted up to heating case, refrigeration case equal first solenoid valve in the gas outlet, the gas outlet of heating case, refrigeration case top is linked together through the connecting pipe respectively between the air inlet of adjacent inflator, fixedly connected with second solenoid valve in the gas outlet of inflator, the flexible end rotation of hydraulic pressure lift post is connected with the rotor plate, rotor plate lower extreme and concave type fixed connection.
In order to limit the rubber shock absorber, the upper end of the extrusion plate is symmetrically and fixedly connected with a limiting convex plate.
In order to provide convenience and improve the radiating effect to actuating mechanism for the tester, furtherly, the opening part that the box is close to test chamber, drive chamber is connected with first chamber door, second chamber door through hinge rotation respectively, fixedly connected with transparent plate on the first chamber door, a plurality of louvres have been seted up on the second chamber door.
In order to improve the air tightness of the test chamber, furthermore, a circle of sealing strip is fixedly connected to the opening of the box body close to the test chamber.
A test method of an endurance test device of an automobile rubber shock absorber comprises the following steps:
s1: firstly, opening a box door on a test chamber, installing a rubber shock absorber at the telescopic end of a hydraulic lifting column through a fixing component, and then enabling the hydraulic lifting column to drive the rubber shock absorber to move downwards, so that appointed pressure is applied to the rubber shock absorber under the cooperation of an extrusion plate, and the pressure of automobile parts on the rubber shock absorber can be simulated;
s2: then the driving mechanism drives the second chain wheel to rotate, so that the extrusion plate can be driven by the eccentric disc to move up and down, and the rubber shock absorber can be intermittently pressurized, and the pressure state of the automobile part on the rubber shock absorber can be simulated when the automobile runs on a bumpy road surface;
s3: when the driving mechanism works, the air supply mechanism can be driven to convey air into the heating box, then the air can be heated under the action of the heater in the heating box and conveyed into the test cavity through the air outlet to heat the rubber damper, and therefore the durability test of the supporting effect and the resilience effect of the rubber damper under the high-temperature condition can be simulated;
s4: when needs simulate the scene that rubber shock absorber used in cold areas, this moment through actuating mechanism control air feed mechanism to the refrigeration incasement transport gas earlier, then the gas after being refrigerated by the refrigeration incasement refrigerator just can be carried into the test intracavity through the gas outlet, cool down the processing to rubber shock absorber, then through air feed mechanism to the incasement transport gas that heats, thereby alright make the lower rubber shock absorber of temperature rise, thereby alright simulate out rubber shock absorber under cold weather, along with the car starts the back, the temperature rises gradually, rubber shock absorber's the scene that also rises gradually, then rethread stripper plate lasts and extrudees rubber shock absorber, can support effect and rebound effect to rubber shock absorber under this kind of scene and carry out the endurance test.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention can truly simulate various working scenes, and maximally restores the actual state of the rubber shock absorber, thereby truly reflecting the durability of the rubber shock absorber when the rubber shock absorber is subjected to a durability experiment, effectively improving the accuracy of the experiment and being suitable for popularization and use.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a front view of a durability test apparatus for a rubber damper of an automobile according to the present invention;
FIG. 2 is a schematic structural diagram of an endurance testing apparatus for a rubber shock absorber of an automobile according to the present invention;
FIG. 3 is a schematic structural view of an eccentric disc, a second chain wheel and a rotating rod in the endurance test apparatus for the rubber shock absorber of the vehicle according to the present invention;
FIG. 4 is a schematic structural view of an eccentric wheel, an output shaft and a ratchet wheel in the endurance test apparatus for the rubber shock absorber of the vehicle according to the present invention;
FIG. 5 is a schematic structural view of a hydraulic lifting column, a rotating plate and a fixing assembly in the endurance test apparatus for the rubber shock absorber of the vehicle according to the present invention;
FIG. 6 is a schematic structural view of a portion A in FIG. 2 of an endurance testing apparatus for a rubber damper of an automobile according to the present invention;
FIG. 7 is a schematic structural view of a part B in FIG. 2 of an endurance testing apparatus for a rubber damper of an automobile according to the present invention.
In the figure: 1. a box body; 101. a test chamber; 102. a drive chamber; 103. a limiting chute; 104. a first door; 105. a transparent plate; 106. a second door; 107. a sealing strip; 2. a pressing plate; 3. a drive motor; 4. an output shaft; 5. a first sprocket; 6. a support plate; 7. rotating the rod; 8. an eccentric disc; 9. a second sprocket; 10. a vertical rod; 11. a tension spring; 12. a slider; 13. a hydraulic lifting column; 14. a rotating plate; 15. a concave splint; 16. a bolt; 17. a fixing plate; 18. an arc-shaped elastic plate; 19. an air cylinder; 20. adjusting a rod; 21. tensioning the spring; 22. a first cylinder; 23. a second cylinder; 24. a piston rod; 26. an eccentric wheel; 27. a T-shaped block; 28. a heating box; 29. a refrigeration case; 30. a first solenoid valve; 31. a second solenoid valve; 32. a ratchet wheel; 34. and a limiting convex plate.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
Example 1:
referring to fig. 1-7, an endurance test apparatus for a rubber shock absorber of an automobile comprises a box body 1 provided with a test chamber 101 and a driving chamber 102 inside, and further comprises: the vertical rods 10 are symmetrically and fixedly connected in the test cavity 101; the extrusion plate 2 is connected to the vertical rod 10 in a sliding manner; the tension spring 11 is sleeved on the vertical rod 10, and two ends of the tension spring are respectively fixedly connected with the lower sides of the extrusion plate 2 and the test cavity 101; the supporting plate 6 is symmetrically and fixedly connected to the lower end, close to the extrusion plate 2, in the test cavity 101; the rotating rod 7 is rotatably connected between the two supporting plates 6; the eccentric disc 8 is symmetrically and fixedly connected to the rotating rod 7; the second chain wheel 9 is fixedly connected between the rotating rod 7 and the two eccentric discs 8; the driving mechanism is used for driving the second chain wheel 9 to rotate and is arranged in the driving cavity 102; a hydraulic lifting column 13 installed at the upper end of the interior of the test chamber 101; the fixing component is used for fixing the rubber shock absorber and is arranged at the telescopic end of the hydraulic lifting column 13; the heating box 28 and the refrigerating box 29 are respectively and fixedly connected to two sides of the box body 1 close to the test cavity 101, and air outlets extend into the test cavity 101; the air supply assembly for independently supplying air to the heating box 28 and the refrigerating box 29 is arranged in the driving cavity 102 and is connected with the output end of the driving mechanism;
the driving mechanism comprises a driving motor 3, an output shaft 4 and a first chain wheel 5, the driving motor 3 is fixedly connected to the side wall in the driving cavity 102, the output shaft 4 is rotatably connected in the driving cavity 102, one end of the output shaft close to the driving motor 3 is fixedly connected with the output end of the driving motor 3, and the first chain wheel 5 is fixedly connected to the position, right below the second chain wheel 9, of the output shaft 4 and is connected with the second chain wheel 9 through a chain;
the air supply assembly comprises a first air cylinder 22, a second air cylinder 23, a piston rod 24 with a piston, an eccentric wheel 26 and ratchet wheels 32, wherein the first air cylinder 22 and the second air cylinder 23 are respectively arranged on two sides of the first chain wheel 5, two groups are symmetrically arranged, the piston rod 24 is connected in the first air cylinder 22 and the second air cylinder 23 in a sliding manner, the ratchet wheels 32 are symmetrically arranged on two sides of the output shaft 4 and are respectively positioned between the first air cylinder 22 and the second air cylinder 23 in each group, the action directions of the two ratchet wheels 32 are opposite, the eccentric wheel 26 is sleeved on the ratchet wheels 32, the outer ring of the eccentric wheel 26 is provided with a circle of T-shaped sliding groove, one end of the piston rod 24 close to the eccentric wheel 26 is fixedly connected with a T-shaped block 27, the T-shaped block 27 is connected in the T-shaped sliding groove in a sliding manner, an air outlet of the first air cylinder 22 is communicated with an air inlet of the heating box 28, an air outlet of the second air cylinder 23 is communicated with an air inlet of the cooling box 29 through an air pipe, and one-way valves are fixedly connected in the air inlet and outlet of the first air cylinder 22 and the second air inlet of the second air cylinder 23;
fixed subassembly includes concave splint 15, bolt 16, fixed plate 17, and concave splint 15 installs the flexible end at hydraulic lifting column 13, and bolt 16 rotates through the screw symmetry to be connected in the both sides of concave splint 15, and fixed plate 17 symmetry sets up in the inside both sides of concave splint 15, and rotates with adjacent bolt 16 to be connected.
When the device is used, an experimenter firstly moves the device to a working position and then fixes and limits the device, so that the overall stability of the device is improved, the device is prevented from shaking and displacing during testing, the testing effect is influenced, then an electric component on the device is powered on, when the rubber shock absorber needs to be subjected to a durability test, a box door on a test cavity 101 is opened at the moment, the rubber shock absorber is placed in a concave clamping plate 15, then a bolt 16 is rotated, the bolt 16 drives a fixing plate 17 to move towards the rubber shock absorber until the fixing plate 17 is tightly attached to the rubber shock absorber, then a hydraulic lifting column 13 is started, the hydraulic lifting column 13 drives the rubber shock absorber to move downwards through the concave clamping plate 15, after the rubber shock absorber is attached to an extrusion plate 2, the hydraulic lifting column 13 is continuously controlled to extend, so that the rubber shock absorber can be applied with specified pressure under the cooperation of the extrusion plate 2, so that the pressure of an automobile component on the rubber shock absorber can be simulated, then the driving motor 3 drives an output shaft 4 to rotate, then the rotating eccentric chain wheel 7 drives a first damping chain wheel 5 to rotate, the eccentric chain wheel 7 to drive the rubber shock absorber to rotate, and then the eccentric chain wheel 7 to rotate, the chain wheel 7, the chain wheel can be driven by the chain wheel 7 to rotate continuously, the eccentric wheel 7, the chain wheel to rotate, the chain wheel 7 to perform an intermittent vibration test, so that the chain wheel can be driven by the chain wheel 7, the chain wheel can be driven by the chain wheel to rotate, the chain wheel to perform an intermittent vibration test, the chain wheel 7, when the output shaft 4 rotates, the eccentric wheel 26 can be driven to rotate simultaneously, the eccentric wheel 26 drives the piston rod 24 to reciprocate up and down in the first air cylinder 22 through the T-shaped block 27, then gas can be continuously conveyed into the heating box 28 through the air conveying pipe, then the gas can be heated under the action of a heater in the heating box 28, then the gas can be conveyed into the test cavity 101 through the air outlet, the temperature in the test cavity 101 can be continuously increased along with the continuous conveying of hot gas into the test cavity 101, the starting and continuous temperature increasing conditions of an automobile can be simulated, when the test cavity 101 is filled with hot gas, the temperature can be constant, the continuous temperature increasing of the rubber damper is simulated until the constant supporting effect and the durability test of the rebound effect are simulated, when a scene of the rubber damper used in a cold region needs to be simulated, the output shaft 4 is controlled to rotate reversely through the driving motor 3, the action directions of the two ratchets 32 are opposite, when the output shaft 4 rotates, only one eccentric wheel 26 is driven to rotate, the eccentric wheel 26 can be driven to rotate under the action of the other ratchet wheel 32, the action of the eccentric wheel 32, the action of the second ratchet wheel 23, the piston rod 23 can be controlled to rotate in the air conveying cavity, the air conveying cylinder 23 in the second air conveying cylinder in the specified air conveying chamber, then the air conveying cylinder 23, the air conveying cavity in the second air conveying cylinder 29, the air conveying chamber is controlled by the air conveying motor to rotate, the air conveying cylinder, the second air conveying cylinder, the air conveying cylinder 29, the air cylinder in the air conveying cavity in the second air cylinder, the air conveying cylinder in the test cavity 29, the test cavity, the air cylinder after the test cavity is controlled to rotate, therefore, the air transmission to the refrigerating box 29 can be stopped, the air transmission is carried out to the heating box 28, then hot air can be transmitted to the test cavity 101, the rubber shock absorber is heated, the rubber shock absorber can be simulated in cold weather, after the automobile is started, the temperature gradually rises, the temperature of the rubber shock absorber gradually rises, then the rubber shock absorber is continuously extruded through the extrusion plate 2, the durability test can be carried out on the supporting effect and the rebounding effect of the rubber shock absorber in the scene, various working scenes can be truly simulated through the arrangement of the experimental device, the state where the rubber shock absorber is actually located is restored to the maximum degree, the durability of the rubber shock absorber can be truly reflected when the rubber shock absorber is subjected to the durability test, the accuracy of the test is effectively improved, and the experimental device is suitable for popularization and use.
Example 2:
referring to fig. 1 to 7, an endurance testing apparatus for a rubber damper of an automobile, substantially the same as in example 1, further comprising: the arc-shaped elastic plate 18 is fixedly connected to one side, far away from the bolt 16, of the fixing plate 17, and the arc-shaped elastic plate 18 is arranged on one side, far away from the bolt 16, of the fixing plate 17, so that after the rubber shock absorber is fixed, the fixing effect on the rubber shock absorber can be improved, when the rubber shock absorber is deformed due to stress, the arc-shaped elastic plate 18 can also deform along with the rubber shock absorber, deformation of the rubber shock absorber is prevented from being influenced, and the test accuracy is effectively guaranteed;
the upper end in the test cavity 101 is provided with a limit chute 103, the limit chute 103 is connected with a slide block 12 in a sliding manner, the upper end of a hydraulic lifting column 13 is fixedly connected with the slide block 12, two sides of the hydraulic lifting column 13 are symmetrically provided with an air cylinder 19, the air cylinder 19 is fixedly connected with a vertical rod 10, the air cylinder 19 is connected with an adjusting rod 20 in a sliding manner, a tensioning spring 21 is arranged in the air cylinder 19, two ends of the tensioning spring 21 are respectively fixedly connected with one side of the air cylinder 19 close to the vertical rod 10 and the adjusting rod 20, one end of the adjusting rod 20 far away from the tensioning spring 21 is fixedly connected with the hydraulic lifting column 13, a plurality of air outlets are respectively arranged on the heating box 28 and the refrigerating box 29, a first electromagnetic valve 30 is fixedly connected in each air outlet, the air outlets at the uppermost ends of the heating box 28 and the refrigerating box 29 are respectively communicated with the air inlets of the adjacent air cylinders 19 through connecting pipes, and a second electromagnetic valve 31 is fixedly connected in the air outlets of the air cylinder 19, the telescopic end of the hydraulic lifting column 13 is rotatably connected with a rotating plate 14, the lower end of the rotating plate 14 is fixedly connected with a concave clamping plate 15, when a simulated automobile is required to run on a bumpy road section with inclined road surface, at the moment, a first electromagnetic valve 30 in an air outlet at the uppermost end of a heating box 28 is opened, other first electromagnetic valves 30 are closed, then, gas in the heating box 28 conveyed by a gas supply assembly enters a connecting pipe through the air outlet at the uppermost end, then, the gas enters an air cylinder 19 adjacent to the heating box 28 through the connecting pipe, the internal air pressure is increased along with the continuous increase of the gas in the air cylinder 19, then, an adjusting rod 20 overcomes a tensioning spring 21 in the air cylinder 19 at the other side to move, then, the adjusting rod 20 can drive the hydraulic lifting column 13 to move, and because the lower end of a rubber shock absorber is always closely attached to the extrusion plate 2, therefore, the rotating plate 14 can drive the rubber shock absorber to deflect under the action of friction force between the rubber shock absorber and the extrusion plate 2, and then the rubber shock absorber after deflection can be subjected to reciprocating extrusion operation by controlling the extrusion plate 2, so that the working condition of the rubber shock absorber on a bumpy road section with an inclined road surface can be simulated when an automobile runs, the working state on a complex road condition is restored to the maximum extent, and the authenticity of test detection on the rubber shock absorber is effectively improved;
the upper end of the extrusion plate 2 is symmetrically and fixedly connected with the limiting convex plates 34, and the limiting convex plates 34 are symmetrically arranged on the extrusion plate 2, so that the rubber shock absorber can better incline when the hydraulic lifting column 13 is pushed to move, and the rubber shock absorber is prevented from moving along with the hydraulic lifting column 13 to influence the inclining effect on the rubber shock absorber;
the box body 1 is close to openings of the test chamber 101 and the driving chamber 102 and is respectively rotatably connected with a first box door 104 and a second box door 106 through hinge hinges, a transparent plate 105 is fixedly connected to the first box door 104, a plurality of radiating holes are formed in the second box door 106, and the transparent plate 105 is fixedly connected to the first box door 104, so that when the device is used for carrying out a durability test on the rubber damper, a tester can conveniently check the test condition through the transparent plate 105 in real time, convenience is provided for the tester, and the driving mechanism in the driving chamber 102 can be ventilated and radiated by forming the plurality of radiating holes in the second box door 106, so that the heat in the driving chamber 102 can be conveniently discharged, and the service life of the driving motor 3 is effectively prolonged;
According to the rubber damper durability test device, through the matched use of the extrusion plate 2, the eccentric disc 8, the hydraulic lifting column 13, the fixing component, the driving mechanism, the heating box 28, the refrigerating box 29, the air supply component and the like, various working scenes can be simulated really, the actual state of the rubber damper is restored to the maximum extent, the durability of the rubber damper can be reflected really when the rubber damper is subjected to a durability test, the test accuracy is effectively improved, and the rubber damper durability test device is suitable for popularization and use.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (10)
1. The utility model provides an endurance test device of car rubber shock absorber ware which characterized in that, includes inside box (1) that is equipped with test chamber (101), drive chamber (102), still includes:
the vertical rod (10) is symmetrically and fixedly connected in the test cavity (101);
the extrusion plate (2) is connected to the vertical rod (10) in a sliding manner;
the tension spring (11) is sleeved on the vertical rod (10), and two ends of the tension spring are respectively fixedly connected with the lower sides of the extrusion plate (2) and the test cavity (101);
the supporting plate (6) is symmetrically and fixedly connected to the lower end, close to the extrusion plate (2), in the test cavity (101);
the rotating rod (7) is rotatably connected between the two supporting plates (6);
the eccentric disc (8) is symmetrically and fixedly connected to the rotating rod (7);
the second chain wheel (9) is fixedly connected between the rotating rod (7) and the two eccentric discs (8);
the driving mechanism is used for driving the second chain wheel (9) to rotate and is arranged in the driving cavity (102);
a hydraulic lifting column (13) mounted at the inner upper end of the test chamber (101);
the fixing component is used for fixing the rubber shock absorber and is arranged at the telescopic end of the hydraulic lifting column (13);
the heating box (28) and the refrigerating box (29) are respectively and fixedly connected to two sides, close to the test cavity (101), of the box body (1), and air outlets extend into the test cavity (101);
and the air supply assembly is used for independently supplying air to the heating box (28) and the refrigerating box (29), is arranged in the driving cavity (102), and is connected with the output end of the driving mechanism.
2. The endurance testing apparatus for rubber shock absorbers in automobiles according to claim 1, characterized in that: the driving mechanism comprises a driving motor (3), an output shaft (4) and a first chain wheel (5), wherein the driving motor (3) is fixedly connected to the side wall in a driving cavity (102), the output shaft (4) is rotatably connected in the driving cavity (102) and is close to one end of the driving motor (3) and the output end of the driving motor (3), the first chain wheel (5) is fixedly connected to the output shaft (4) under the position close to the second chain wheel (9), and the first chain wheel (5) is connected with the second chain wheel (9) through a chain.
3. The durability test apparatus for rubber dampers for automobiles according to claim 2, wherein: air feed subassembly includes first cylinder (22), second cylinder (23), has piston rod (24), eccentric wheel (26), ratchet (32) of piston, first cylinder (22), second cylinder (23) set up respectively in the both sides of first sprocket (5), and the symmetry is equipped with two sets ofly, piston rod (24) sliding connection is in first cylinder (22), second cylinder (23), ratchet (32) symmetry sets up the both sides at output shaft (4), and is located respectively between first cylinder (22), the second cylinder of every group, two the effect opposite direction of ratchet (32), eccentric wheel (26) cup joint on ratchet (32), round T type spout has been seted up to the outer lane of eccentric wheel (26), piston rod (24) are close to the one end fixedly connected with T type piece (27) of eccentric wheel (26), T type piece (27) sliding connection is in T type spout, between the gas outlet of first cylinder (22) and the air inlet of heating case (28), between the gas outlet of second cylinder (23) and the gas outlet of refrigerating case (29), the gas inlet and outlet through the one-way air inlet and outlet of air pipe (22), the first cylinder (23), the first cylinder (22) is connected with one-way valve.
4. The durability test apparatus for rubber dampers for automobiles according to claim 1, wherein: fixed subassembly includes concave type splint (15), bolt (16), fixed plate (17), the flexible end in hydraulic lifting column (13) is installed in concave type splint (15), bolt (16) rotate the both sides of connecting in concave type splint (15) through the screw symmetry, fixed plate (17) symmetry sets up in the inside both sides of concave type splint (15), and with adjacent bolt (16) rotate and connect.
5. The durability test apparatus for rubber dampers for automobiles according to claim 4, wherein: one side of the fixing plate (17) far away from the bolt (16) is fixedly connected with an arc-shaped elastic plate (18).
6. The durability test apparatus for rubber dampers for automobiles according to claim 4, wherein: the upper end in the test cavity (101) is provided with a limiting sliding groove (103), the limiting sliding groove (103) is connected with a sliding block (12) in a sliding way, the upper end of the hydraulic lifting column (13) is fixedly connected with the sliding block (12), air cylinders (19) are symmetrically arranged on both sides of the hydraulic lifting column (13), the inflator (19) is fixedly connected with the vertical rod (10), the inflator (19) is internally and slidably connected with an adjusting rod (20), a tension spring (21) is arranged in the inflator (19), two ends of the tension spring (21) are respectively fixedly connected with one side of the inflator (19) close to the vertical rod (10) and the adjusting rod (20), one end of the adjusting rod (20) far away from the tension spring (21) is fixedly connected with the hydraulic lifting column (13), a plurality of air outlets are respectively arranged on the heating box (28) and the refrigerating box (29), a first electromagnetic valve (30) is fixedly connected in each air outlet, the air outlets at the uppermost ends of the heating box (28) and the refrigerating box (29) are respectively communicated with the air inlets of the adjacent air cylinders (19) through connecting pipes, a second electromagnetic valve (31) is fixedly connected in an air outlet of the air cylinder (19), the telescopic end of the hydraulic lifting column (13) is rotationally connected with a rotating plate (14), the lower end of the rotating plate (14) is fixedly connected with the concave splint (15).
7. The endurance testing apparatus for rubber shock absorbers in automobiles according to claim 6, characterized in that: the upper end of the extrusion plate (2) is symmetrically and fixedly connected with a limiting convex plate (34).
8. The durability test apparatus for rubber dampers for automobiles according to claim 1, wherein: the box body (1) is close to openings of the test chamber (101) and the driving chamber (102) and is rotatably connected with a first box door (104) and a second box door (106) through hinge hinges respectively, a transparent plate (105) is fixedly connected to the first box door (104), and a plurality of heat dissipation holes are formed in the second box door (106).
9. The durability test apparatus for rubber dampers for automobiles according to claim 8, wherein: the opening part of the box body (1) close to the test cavity (101) is fixedly connected with a circle of sealing strips (107).
10. A test method of an endurance test apparatus for rubber shock absorbers for automobiles, which employs the endurance test apparatus for rubber shock absorbers for automobiles of claims 1 to 4, characterized by comprising the steps of:
s1: firstly, opening a box door on a test chamber (101), installing a rubber shock absorber at the telescopic end of a hydraulic lifting column (13) through a fixing component, and then enabling the hydraulic lifting column (13) to drive the rubber shock absorber to move downwards, so that appointed pressure is applied to the rubber shock absorber under the cooperation of an extrusion plate (2), and the pressure of an automobile part on the rubber shock absorber can be simulated;
s2: then, a driving mechanism drives a second chain wheel (9) to rotate, so that the extrusion plate (2) can be driven to move up and down through an eccentric disc (8), and the rubber shock absorber can be intermittently pressurized, and the pressure state of an automobile part on the rubber shock absorber can be simulated when the automobile runs on a bumpy road surface;
s3: when the driving mechanism works, the air supply mechanism can be driven to convey air into the heating box (28), then the air can be heated under the action of a heater in the heating box (28), and then the air can be conveyed into the test cavity (101) through the air outlet to heat the rubber damper, so that the durability test of the supporting effect and the rebound effect of the rubber damper under the high-temperature condition can be simulated;
s4: when the scene that rubber shock absorber used in cold area needs to be simulated, at this moment, gas is conveyed into test chamber (101) through the gas outlet through driving mechanism control gas supply mechanism to refrigeration case (29) earlier, then gas after being refrigerated by the refrigerator in refrigeration case (29) just can be carried, cool down the rubber shock absorber and handle, then through gas supply mechanism to heating case (28) in conveying gas, thereby alright make the lower rubber shock absorber of temperature rise, thereby alright simulate rubber shock absorber under cold weather, along with the car starts the back, the temperature rises gradually, the scene that the temperature of rubber shock absorber also rises gradually, then continue to extrude rubber shock absorber through stripper plate (2), can carry out the durability test to rubber shock absorber supporting effect and resilience effect under this kind of scene.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210955982.4A CN115343070A (en) | 2022-08-10 | 2022-08-10 | Endurance test device and method for automobile rubber shock absorber |
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| CN202210955982.4A CN115343070A (en) | 2022-08-10 | 2022-08-10 | Endurance test device and method for automobile rubber shock absorber |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115585960A (en) * | 2022-12-07 | 2023-01-10 | 山东福阳液压科技有限公司 | Hydraulic cylinder leakproofness testing arrangement |
| CN116202789A (en) * | 2023-05-05 | 2023-06-02 | 苏州国融前沿技术有限公司 | Mass detection device for processing automobile shock absorber ware of making an uproar falls in shock attenuation |
| CN116358905A (en) * | 2023-05-19 | 2023-06-30 | 华南理工大学 | Shock absorber durability test equipment |
-
2022
- 2022-08-10 CN CN202210955982.4A patent/CN115343070A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115585960A (en) * | 2022-12-07 | 2023-01-10 | 山东福阳液压科技有限公司 | Hydraulic cylinder leakproofness testing arrangement |
| CN115585960B (en) * | 2022-12-07 | 2023-03-28 | 山东福阳液压科技有限公司 | Hydraulic cylinder leakproofness testing arrangement |
| CN116202789A (en) * | 2023-05-05 | 2023-06-02 | 苏州国融前沿技术有限公司 | Mass detection device for processing automobile shock absorber ware of making an uproar falls in shock attenuation |
| CN116358905A (en) * | 2023-05-19 | 2023-06-30 | 华南理工大学 | Shock absorber durability test equipment |
| CN116358905B (en) * | 2023-05-19 | 2023-08-01 | 华南理工大学 | Shock absorber durability test equipment |
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