CN112378675A - Heavy-duty vehicle hydro-pneumatic spring test device - Google Patents
Heavy-duty vehicle hydro-pneumatic spring test device Download PDFInfo
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- CN112378675A CN112378675A CN202011105159.1A CN202011105159A CN112378675A CN 112378675 A CN112378675 A CN 112378675A CN 202011105159 A CN202011105159 A CN 202011105159A CN 112378675 A CN112378675 A CN 112378675A
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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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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Abstract
The invention discloses a heavy vehicle hydro-pneumatic spring test device which mainly comprises an industrial personal computer, a printer, a driver, a motor, an oil basin, a tool box, a hydro-pneumatic spring and a preparation frame, wherein a programmable controller is arranged in the industrial personal computer and is connected with a working condition sensor through a wire harness, the industrial personal computer and the printer are electrically connected through the wire harness, the preparation frame is used for temporarily placing a hydro-pneumatic spring to be detected, the driver mainly comprises a bottom frame, a top frame and a driving frame, the motor is fixedly arranged at the front part of the top end of the driving frame, and the bottom frame is fixedly arranged at the rear part of the left side of the driving frame. The technical scheme of the invention has simple structure and convenient manufacture and installation, can meet the test requirements specified by the technical conditions of the hydro-pneumatic spring of the heavy vehicle through practical verification, and the flexible joint arranged in the device can perfectly absorb the instant impact of starting and the subsequent potential energy of stopping, thereby ensuring the safety of the device and the normal disassembly of the subsequent hydro-pneumatic spring.
Description
Technical Field
The invention relates to an experimental device, in particular to a heavy-duty vehicle hydro-pneumatic spring test device.
Background
Generally, the hydro-pneumatic spring can be used for an independent suspension and a non-independent suspension, takes gas as an elastic medium and liquid as a force transmission medium, has good buffering capacity and a damping effect, and is generally used for heavy vehicles or buses.
The hydro-pneumatic spring mainly comprises an air chamber and a hydraulic cylinder. An oil-gas diaphragm is arranged in the gas chamber to separate the gas chamber, and an inflation valve is arranged on one side of the gas chamber and is used for inflating high-pressure industrial nitrogen; the other side is also communicated with the inner cavity of the hydraulic cylinder and is filled with working liquid. Two ends of the bracket are respectively connected with the frame and the axle. When the frame and the axle produce relative motion, hydro-pneumatic spring attenuates vehicle operation vibration rapidly, makes the vehicle go steadily reliably, if the hydro-pneumatic spring that new preparation or maintenance were crossed the running-in test, the leakproofness can't be guaranteed, and the hydro-pneumatic spring that the sealing became invalid will lose the effect of shock attenuation buffering, can reduce passing through the smoothness of vehicle after the loading, damages vehicle components and parts, causes the potential safety hazard.
In addition, the dynamic sealing reliability of the newly manufactured or repaired hydro-pneumatic spring before installation cannot be verified through a static test, and a dynamic running-in test is required. The testing device can carry out running-in test on the hydro-pneumatic spring within the stroke range of 675 mm-755 mm, the running-in frequency is controlled to be 0.2Hz, the actual working environment of the hydro-pneumatic spring can be truly and effectively simulated, and the dynamic sealing reliability of the hydro-pneumatic spring can be verified.
Disclosure of Invention
The invention aims to provide a heavy-duty vehicle hydro-pneumatic spring test device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a heavy vehicle hydro-pneumatic spring test device mainly comprises an industrial personal computer, a printer, a driver, a motor, an oil basin, a tool box, a hydro-pneumatic spring and a preparation frame, wherein a programmable controller is arranged in the industrial personal computer, the programmable controller is connected with a working condition sensor through a wire harness, the industrial personal computer and the printer are electrically connected through the wire harness, the preparation frame is used for temporarily placing the hydro-pneumatic spring to be detected, the driver mainly comprises a bottom frame, a top frame and a driving frame, the motor is fixedly arranged at the front part of the top end of the driving frame, the rear part of the left side of the driving frame is fixedly provided with the bottom frame, the middle part of the top end of the bottom frame is fixedly provided with a middle seat, the top end of the bottom frame is positioned at the left side and the right side of the middle seat and is fixedly provided with a stand column, the, the middle part of the top end of the middle frame is fixedly provided with a top frame through bolts, the bottom end of the top frame is positioned at the left side and the right side of the middle frame and is fixedly provided with symmetrically arranged spring frames, the spring frames are positioned right above the spring seats, the bottom end of the spring frames and the top end of the spring seats are respectively and fixedly provided with symmetrically arranged first spring joints, the bottom end of the spring frames and the top end of the spring seats are respectively and fixedly provided with second spring joints, and hydro-pneumatic springs are assembled and installed between the first spring joints and the second spring joints which are vertically symmetrical;
the utility model discloses a bearing device, including roof-rack bottom, rocking arm, spacer ring, eccentric block, pin rod seat, pin rod front end fixed mounting, the top frame bottom right part fixed mounting has the drive frame, and drive frame bottom fixed mounting has the drive seat, and the drive seat bottom rotates and installs the rocking arm, and the inboard ball seat of symmetry around installing that rotates of rocking arm lower part, inlays between ball seat outer wall and the rocking arm inner wall to establish and installs the ball, lateral wall fixed mounting has the spacing ring around the ball seat, spacing ring lateral wall and rocking arm lateral wall sliding contact, spacing ring middle part grafting fixed mounting has the eccentric block, and eccentric block edge runs through the grafting and installs the pin rod, drive seat top rear portion fixed mounting has the pin rod seat, and the pin rod seat rotates with the pin rod to be connected, pin rod front end fixed mounting has the integral.
As a further scheme of the invention: the flexible joint mainly comprises a joint shell, a ring seat, a connecting rod, a support rod, a bearing sleeve, an inner gear ring, a sliding block, a spring pressing plate, a guide ring, a spring and a spring seat, wherein the front joint shell and the rear joint shell are fixedly connected through bolts, the inner gear ring is rotatably arranged on the inner side of the joint shell and is meshed and spliced with a gear key shaft, the sliding block is fixedly arranged on the outer wall of the inner gear ring in a bilateral symmetry manner, the guide ring is arranged in the middle of the sliding block in a penetrating manner, the upper end and the lower end of the guide ring are fixedly connected with the inner wall of the joint shell, the guide ring matched with the sliding block is fixedly arranged on the inner side of the joint shell, the connecting rod is fixedly arranged between the corresponding sliding blocks, the support rod is fixedly arranged at one end of the sliding block, which is far away from, the end part of the joint shell is fixedly provided with a bearing sleeve, a bearing is assembled between the inner wall of the bearing sleeve and the gear key shaft, and the rear end of the output shaft of the speed reducer is fixedly connected with the outer wall of the bearing sleeve positioned at the front part.
As a still further scheme of the invention: the openings of the second spring joint and the first spring joint are vertical to each other.
As a still further scheme of the invention: the side wall of the pin rod is provided with a rectangular sliding groove, and a limiting clamping key which is consistent with the rectangular sliding groove on the pin rod in position is fixedly arranged on the inner wall of the through hole matched with the pin rod in the eccentric block.
As a still further scheme of the invention: the industrial personal computer is electrically connected with the motor through a wire harness.
As a still further scheme of the invention: the working condition sensor comprises a current sensor, a voltage sensor, a first pressure sensor, a second pressure sensor and a proximity switch, the current sensor and the voltage sensor are installed inside the industrial personal computer, the first pressure sensor and the second pressure sensor are installed on a hydraulic pipeline of the oil-gas spring, the proximity switch is installed at the top end of the driving seat, the proximity switch is located under the rocker arm, and the proximity switch is triggered when the rocker arm moves to a lower dead point.
As a still further scheme of the invention: the industrial personal computer is electrically connected with an external power supply.
Compared with the prior art, the invention has the beneficial effects that:
the technical scheme of the invention has simple structure and convenient manufacture and installation, can meet the test requirements specified by the technical conditions of the hydro-pneumatic spring of the heavy vehicle through practical verification, and the flexible joint arranged in the device can perfectly absorb the instant impact of starting and the subsequent potential energy of stopping, thereby ensuring the safety of the device and the normal disassembly of the subsequent hydro-pneumatic spring.
Drawings
Fig. 1 is a schematic main body view of a heavy-duty vehicle hydro-pneumatic spring test device.
Fig. 2 is a schematic view of auxiliary equipment of the hydro-pneumatic spring test device for heavy vehicles.
FIG. 3 is a schematic bottom view of the top frame, the spring frame, the middle frame and the driving frame of the hydro-pneumatic spring test device for heavy vehicles.
Fig. 4 is a schematic plan view of the underframe, spring seat, middle seat and driving seat in the heavy vehicle hydro-pneumatic spring test device.
FIG. 5 is a top view of the chassis, the driving seat, the pin rod, the eccentric block and the pin seat of the hydro-pneumatic spring testing device for heavy vehicles.
FIG. 6 is a schematic front view of the pin, eccentric block, rocker arm and pin seat in the hydro-pneumatic spring test device for heavy-duty vehicles.
FIG. 7 is a schematic top view of a heavy vehicle hydro-pneumatic spring test rig between a flexible joint and a spline shaft.
Fig. 8 is a schematic front view of the joint housing, the spring seat, the spring pressing plate and the spring in the heavy vehicle hydro-pneumatic spring testing device.
Fig. 9 is a schematic flow chart of a hydro-pneumatic spring testing device for heavy vehicles.
In the figure: the device comprises a driving seat 1, a limiting ring 2, an eccentric block 3, a rocker arm 4, a rocker arm seat 5, a driving frame 6, a first spring joint 7, a ball 8, a middle frame 9, a top frame 10, a spring frame 11, an oil-gas spring 12, a middle seat 14, an upper rotating seat 15, a lower rotating seat 16, an upright rod 17, a bottom frame 18, a spring seat 19, a pin seat 20, a pin rod 21, an oil basin 22, a tool box 23, an industrial personal computer 24, a preparation frame 25, a second spring joint 26, a ball seat 27, a joint shell 28, a speed reducer 29, a motor 30, a toothed key shaft 31, a ring seat 32, a connecting rod 33, a support rod 34, a bearing sleeve 35, an inner gear ring 36, a sliding block 37, a spring pressure plate 38, a guide ring 39, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can, for example, be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, in the embodiment of the invention, a heavy vehicle hydro-pneumatic spring testing device mainly comprises an industrial personal computer 24, a printer, a driver, a motor 30, an oil basin 22, a tool box 23, a hydro-pneumatic spring 12 and a preparation frame 25, wherein a programmable controller is arranged in the industrial personal computer 24 and is connected with a working condition sensor through a wire harness, the industrial personal computer 24 is electrically connected with the printer through the wire harness, the preparation frame 25 is used for temporarily placing the hydro-pneumatic spring 12 to be tested, the driver mainly comprises a base frame 18, a top frame 10 and a driving frame 1, the motor 30 is fixedly arranged at the front part of the top end of the driving frame 1, the base frame 18 is fixedly arranged at the rear part of the left side of the driving frame 1, a middle seat 14 is fixedly arranged at the middle part of the top end of the base frame 18, spring seats 19 are fixedly arranged at the left side, the top end of the upright post 17 is fixedly provided with a lower swivel mount 16, the top end of the lower swivel mount 6 is rotatably provided with an upper swivel mount 15, the top end of the upper swivel mount 15 is fixedly provided with a middle frame 9, the middle part of the top end of the middle frame 9 is fixedly provided with an upper frame 10 through bolts, the bottom end of the upper frame 10 is positioned at the left side and the right side of the middle frame 9 and is fixedly provided with symmetrically arranged spring frames 11, the spring frames 11 are positioned right above the spring seats 19, the bottom end of the spring frames 11 and the top end of the spring seats 19 are respectively and fixedly provided with symmetrically arranged first spring joints 7, the bottom end of the spring frames 11 and the top end of the spring seats 19 are respectively and fixedly provided with second spring joints 26;
the top frame 10 bottom right part fixed mounting has a drive frame 6, the drive frame 6 bottom fixed mounting has a drive seat 5, the drive seat 5 bottom rotates and installs the rocking arm 4, the inboard ball seat 27 of symmetry around installing rotates and installs of rocking arm 4 lower part, inlay between ball seat 27 outer wall and the rocking arm 4 inner wall and establish and install ball 8, lateral wall fixed mounting has spacing ring 2 around ball seat 27, spacing ring 2 lateral wall and rocking arm 4 lateral wall sliding contact, spacing ring 2 middle part grafting fixed mounting has eccentric block 3, eccentric block 3 edge runs through the grafting and installs pin 21, drive seat 1 top rear portion fixed mounting has pin seat 20, pin seat 20 and pin 21 rotate to be connected, pin 21 front end fixed mounting has integral key shaft 31, motor 30 rear end pivot position fixed mounting has a reduction gear 29, the pivot fixed mounting at reduction gear 29 rear end has a flexible joint, the flexible joint is inserted and assembled with the spline shaft 31.
The flexible joint mainly comprises a joint shell 28, a ring seat 32, a connecting rod 33, a support rod 34, a bearing sleeve 35, an inner gear ring 36, a sliding block 37, a spring pressing plate 38, a guide ring 39, a spring 40 and a spring seat 41, wherein the front joint shell 28 and the rear joint shell 28 are fixedly connected through a bolt, the inner side of the joint shell 28 is rotatably provided with the inner gear ring 36, the inner gear ring 36 is meshed and inserted with a gear key shaft 31, the outer wall of the inner gear ring 36 is fixedly provided with bilaterally symmetrical sliding blocks 37, the middle part of each sliding block 37 is provided with the guide ring 39 in a penetrating manner, the upper end and the lower end of each guide ring 39 are fixedly connected with the inner wall of the joint shell 18, the inner side of the joint shell 28 is fixedly provided with the guide ring 39 matched with the sliding blocks 37, the corresponding connecting rod 33 is fixedly arranged between the sliding blocks 37, one end of each sliding block 37, which is far, an arc-shaped spring 40 is fixedly installed between the left side wall and the right side wall of the spring seat 41 and the upper side wall and the lower side wall of the spring pressing plate 38, a bearing sleeve 35 is fixedly installed at the end portion of the joint shell 28, a bearing is installed between the inner wall of the bearing sleeve 35 and the spline shaft 31 in an assembling mode, and the rear end of an output shaft of the speed reducer 29 is fixedly connected with the outer wall of the bearing sleeve 35 located at the front portion.
The second spring contact 26 and the first spring contact 7 are open perpendicularly to each other.
Rectangular sliding grooves are formed in the side wall of the pin rod 21, and limiting clamping keys which are consistent with the rectangular sliding grooves in the pin rod 21 in position are fixedly mounted on the inner wall of a through hole matched with the pin rod 21 in the eccentric block 3.
The industrial personal computer 24 is electrically connected with the motor 30 through a wire harness.
The working condition sensor comprises a current sensor, a voltage sensor, a first pressure sensor, a second pressure sensor and a proximity switch, the current sensor and the voltage sensor are installed inside an industrial personal computer 24, the first pressure sensor and the second pressure sensor are installed on a hydraulic pipeline of the hydro-pneumatic spring 12, the proximity switch is installed at the top end of the driving seat 1, the proximity switch is located under the rocker arm 4, and the proximity switch is triggered when the rocker arm 4 moves to a lower dead point.
The industrial personal computer 24 is electrically connected with an external power supply.
The working principle of the invention is as follows:
the invention relates to a heavy vehicle hydro-pneumatic spring test device, which can effectively detect and judge the sealing reliability in real time when a hydro-pneumatic spring is subjected to a running-in test on the device, and avoids potential safety hazards after unqualified hydro-pneumatic springs are loaded.
The invention can realize the characteristic of simultaneously carrying out running-in tests on a single oil-gas spring, two oil-gas springs or four oil-gas springs.
The invention can convert the test result into data, can rapidly monitor and cut off the power supply when in failure, protects the hydro-pneumatic spring and the starting motor, and can prompt problems in the test process in time.
The invention can simulate the working condition of the hydro-pneumatic spring when a special load-carrying vehicle runs, check and verify whether the new or repaired hydro-pneumatic spring meets the requirements of technical conditions, and carry out running-in test on the new or repaired hydro-pneumatic spring.
The hydro-pneumatic spring testing device is mainly used for the final testing procedure after the hydro-pneumatic spring is manufactured or repaired, the working process of the hydro-pneumatic spring on a chassis of a heavy vehicle is simulated, and whether the hydro-pneumatic spring is qualified or not is checked through running-in.
During the running-in test of the hydro-pneumatic spring, the up-and-down movement is +/-40 mm. The distance between the axis of the pin rod and the axis of the driving seat is 80mm, the distance between the hydro-pneumatic springs on two sides and the central fulcrum is 910mm, the distance between the axis of the driving seat and the center line of the upright post is 1820mm, the up-and-down motion amplitude of the hydro-pneumatic springs is 80mm, the distance between the axis of the pin rod and the circle center of the eccentric block is 40mm, and the experimental reciprocating distance is +/-40 mm.
The test bed takes an 11kw alternating current motor as power, is decelerated by a speed reducer, is connected with a test bed pin rod, and enables the top frame to jump up and down through a rocker arm to complete compression and extension of the hydro-pneumatic spring. Through the cam link mechanism of the test bed and the mounting position of the hydro-pneumatic spring, the up-and-down movement of the hydro-pneumatic spring is guaranteed to be +/-40 mm during running-in test.
The electric control system controls the starting, counting and stopping of the hydro-pneumatic spring testing device through the industrial personal computer, the printer, the programmable controller and the corresponding sensors, when the running-in times reach a set value, the test is automatically stopped, the electric control system monitors the internal pressure of the hydro-pneumatic spring in real time through the pressure sensor connected with the testing device, and when the pressure fluctuation value exceeds a set range, the electric control system immediately alarms and stops the work of the motor. After the test is finished, a report can be automatically generated, and test data is stored in the computer. The report included the number of trials, the pressure value recorded at each time and a curve generated.
And when starting and stopping, the motor passes through flexible joint and is connected with check out test set, can cushion the impact of opening and stopping, avoid damaging the motor, and the top dead center position and the lower dead center position of device are to middle equilibrium position, corresponding turned angle is 90 degrees, so no matter the motor is shut down at any angle, flexible joint inside is close 180 degrees's buffering angle, follow-up potential energy of absorption rotation that can be perfect as far as, guarantee the stability of motor shaft when the device shuts down and reverts to equilibrium position, avoid the existence of torsion to make the device can't revert to equilibrium state and carry out hydro-pneumatic spring's dismantlement.
The technical scheme of the invention has simple structure and convenient manufacture and installation, can meet the test requirements specified by the technical conditions of the hydro-pneumatic spring of the heavy vehicle through practical verification, and the flexible joint arranged in the device can perfectly absorb the instant impact of starting and the subsequent potential energy of stopping, thereby ensuring the safety of the device and the normal disassembly of the subsequent hydro-pneumatic spring.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a heavy-duty vehicle hydro-pneumatic spring test device, mainly includes industrial computer (24), printer, driver, motor (30), oil pan (22), toolbox (23), hydro-pneumatic spring (12) and prepares frame (25), its characterized in that, industrial computer (24) inside embeds there is programmable controller, and programmable controller passes through pencil connection operating mode sensor, industrial computer (24) and printer pass through pencil electric connection, prepare frame (25) and be used for waiting to detect interim the placing of hydro-pneumatic spring (12), the driver mainly includes chassis (18), roof-rack (10) and drive frame (1), motor (30) fixed mounting is anterior at drive frame (1) top, drive frame (1) left side rear portion fixed mounting has chassis (18), and chassis (18) top middle part fixed mounting has well seat (14), the top end of the underframe (18) is positioned at the left and right sides of the middle base (14) and is fixedly provided with a spring seat (19), the top end of the middle base (14) is fixedly provided with a stand column (17), the top end of the stand column (17) is fixedly provided with a lower rotary seat (16), the top end of the lower rotary seat (6) is rotatably provided with an upper rotary seat (15), the top end of the upper rotary seat (15) is fixedly provided with a middle frame (9), the middle part of the top end of the middle frame (9) is fixedly provided with an upper frame (10) through bolts, the bottom end of the upper frame (10) is positioned at the left and right sides of the middle frame (9) and is fixedly provided with spring frames (11) symmetrically arranged, the spring frames (11) are positioned directly above the spring seats (19), the bottom end of the spring frames (11) and the top end of the spring seats (19) are respectively fixedly, an oil-gas spring (12) is assembled and installed between the first spring joint (7) and the second spring joint (26) which are vertically symmetrical;
the top frame (10) bottom right part fixed mounting has a drive frame (6), drive frame (6) bottom fixed mounting has a drive seat (5), drive seat (5) bottom is rotated and is installed rocking arm (4), rocking arm (4) lower part inboard is rotated and is installed ball seat (27) of symmetry around installing, inlays between ball seat (27) outer wall and rocking arm (4) inner wall to establish and installs ball (8), lateral wall fixed mounting has spacing ring (2) around ball seat (27), spacing ring (2) lateral wall and rocking arm (4) lateral wall sliding contact, spacing ring (2) middle part grafting fixed mounting has eccentric block (3), and eccentric block (3) edge runs through the grafting and installs pin rod (21), drive seat (1) top rear portion fixed mounting has pin rod seat (20), and pin rod seat (20) rotate with pin rod (21) and are connected, pin rod (21) front end fixed mounting has integral key shaft (31), a speed reducer (29) is fixedly installed at the position of a rotating shaft at the rear end of the motor (30), a flexible joint is fixedly installed on the rotating shaft at the rear end of the speed reducer (29), and the flexible joint is spliced and assembled with a spline shaft (31).
2. The heavy vehicle gas-oil spring test device according to claim 1, wherein the flexible joint mainly comprises a joint shell (28), a ring seat (32), a connecting rod (33), a support rod (34), a bearing sleeve (35), an inner gear ring (36), a sliding block (37), a spring pressing plate (38), a guide ring (39), a spring (40) and a spring seat (41), the front joint shell and the rear joint shell (28) are fixedly connected through a bolt, the inner gear ring (36) is rotatably installed on the inner side of the joint shell (28), the inner gear ring (36) is in meshing insertion with a gear key shaft (31), the sliding block (37) which is symmetrical left and right is fixedly installed on the outer wall of the inner gear ring (36), the guide ring (39) is installed in the middle of the sliding block (37) in a penetrating manner, the upper end and the lower end of the guide ring (39) are fixedly connected with the inner wall of the joint shell (18), and the guide ring (39) which is matched, correspond fixed mounting has connecting rod (33) between slider (37), connecting rod (33) one end fixed mounting is kept away from in slider (37) has branch (34), and branch (34) tip fixed mounting has spring plate (38), fixed mounting has spring holder (41) of longitudinal symmetry about joint shell (28) inboard fixed mounting, and fixed mounting has arc spring (40) about spring holder (41) between lateral wall and the spring plate (38) about between the lateral wall, joint shell (28) tip fixed mounting has bearing housing (35), and the assembly mounting has the bearing between bearing housing (35) inner wall and tooth key shaft (31), the output shaft rear end of reduction gear (29) with be located anteriorly bearing housing (35) outer wall fixed connection.
3. The heavy vehicle gas-oil spring test device according to claim 1, characterized in that the second spring connector (26) and the first spring connector (7) are open towards each other perpendicularly.
4. The heavy vehicle gas and oil spring test device as claimed in claim 1, wherein the side wall of the pin rod (21) is provided with a rectangular sliding groove, and a limit catch key which is consistent with the rectangular sliding groove on the pin rod (21) is fixedly arranged on the inner wall of a through hole which is matched with the pin rod (21) in the eccentric block (3).
5. The heavy-duty vehicle gas-oil spring test device according to claim 1, wherein the industrial personal computer (24) is electrically connected with the motor (30) through a wire harness.
6. The heavy-duty vehicle hydro-pneumatic spring test device according to claim 1, wherein the operating condition sensor comprises a current sensor, a voltage sensor, a first pressure sensor, a second pressure sensor and a proximity switch, the current sensor and the voltage sensor are installed inside an industrial personal computer (24), the first pressure sensor and the second pressure sensor are installed on a hydraulic pipeline of a hydro-pneumatic spring (12), the proximity switch is installed at the top end of the driving seat (1), the proximity switch is located right below the rocker arm (4), and the proximity switch is triggered when the rocker arm (4) moves to a bottom dead center.
7. The heavy vehicle gas and oil spring test device according to claim 1, wherein the industrial personal computer (24) is electrically connected with an external power supply.
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| CN202011105159.1A CN112378675B (en) | 2020-10-15 | 2020-10-15 | Heavy-duty vehicle hydro-pneumatic spring test device |
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| CN202011105159.1A CN112378675B (en) | 2020-10-15 | 2020-10-15 | Heavy-duty vehicle hydro-pneumatic spring test device |
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| CN112378675B CN112378675B (en) | 2022-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235742A (en) * | 2022-06-24 | 2022-10-25 | 北京长征天民高科技有限公司 | Hydro-pneumatic spring running-in test device and method |
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| CN112378675B (en) | 2022-08-12 |
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