CN219589931U - I type distance rod composite loading durability bench test device - Google Patents
I type distance rod composite loading durability bench test device Download PDFInfo
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- CN219589931U CN219589931U CN202320671416.0U CN202320671416U CN219589931U CN 219589931 U CN219589931 U CN 219589931U CN 202320671416 U CN202320671416 U CN 202320671416U CN 219589931 U CN219589931 U CN 219589931U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The utility model discloses a composite loading durability bench test device for an I-shaped thrust rod, which comprises a longitudinal loading unit and a torsion unit for coordinated loading, wherein the longitudinal loading unit is arranged at two ends of the thrust rod and is used for applying a pulling force in the vertical direction to the thrust rod; the torsion unit extends from spherical hinges at two ends of the thrust rod, is arranged on one side of the thrust rod, and forms an included angle with the thrust rod so as to realize a torsion angle fatigue test. The test scheme of the I-type thrust rod composite loading durability bench test device can simultaneously realize the working conditions of applying longitudinal and torsion composite loads to the I-type thrust rod, can carry out longitudinal or torsion durability tests on the I-type thrust rod, can detect the fatigue life of the I-type thrust rod under the longitudinal and torsion and longitudinal and torsion composite working conditions, and has strong use reliability.
Description
Technical Field
The utility model relates to the field of thrust rod test equipment, in particular to an I-type thrust rod composite loading durability bench test device.
Background
Along with the wide application of various types of thrusting rods to commercial trucks and buses, the thrusting rods are more and more studied, and the thrusting rods are used as key connecting parts of axles and frames and mainly play roles in force transmission, limiting and guiding. Meanwhile, the rubber spherical hinge joint on the thrust rod also plays a role in buffering vibration and impact, and is one of key parts of the multi-axle automobile balance suspension, so that the strength of the rubber spherical hinge joint has a critical influence on the safety and stability of the whole automobile in the running process.
The thrust rod is mainly divided into an I-shaped straight rod and a V-shaped rod according to the shape of the thrust rod, the I-shaped straight rod is widely applied, and the thrust rod mainly comprises a linear sleeve and rubber spherical hinges assembled at the two ends of the linear sleeve. In the actual running process of the thrust rod, the vehicle is mainly subjected to longitudinal pulling load when in traction and advancing, and is mainly subjected to torsion and deflection load when the vehicle body is subjected to jolt and steering, and the loading working condition is severe, so that the problems of deformation, fracture, pull-off of the ball heads at the two ends and the linear sleeve, rubber cracking and crushing in the rubber ball joint and the like of the thrust rod body are frequently caused in the using process, and the verification of various failures before the thrust rod flows into the market is particularly critical.
At present, most bench tests of the thrust rod assembly are only one-way loading verification, the working condition of compound loading of the thrust rod is less, and failure judgment is carried out on products in advance in order to simulate the loading working condition of a real vehicle of the thrust rod.
Through searching, application number 202210428815.4 discloses an I-type thrust rod endurance test device and an installation and use method thereof, the whole device meets the requirement that torsional load is applied when force is longitudinally applied to a thrust rod, but the application of torsional force is only transferred to a spherical hinge at one end of the thrust rod, and the application of torsional force is not performed on the spherical hinges at two ends at the same time, but in the actual process, the spherical hinges at two ends of the thrust rod are subjected to the action of torsional load at the same time, so that the deviation of a test result is larger.
The application number 201810015142.3 discloses a radial combined loading bench test fixture for a thrust rod, and the whole device meets the requirements that a load is applied in a deflection direction when a force is longitudinally applied to the thrust rod, but the load in the deflection direction is only applied to one end spherical hinge, and the working condition of realizing torsion loading while longitudinal loading is not involved.
In conclusion, how to design the durability test bench for longitudinal and torsion combined loading has important practical significance and economic value in actual production.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model designs the I-type thrust rod composite loading durability bench test device which simulates the actual operation stress working condition of the thrust rod assembly on the frame by simultaneously loading the longitudinal and torsion combination of the thrust rod assembly.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model discloses a composite loading durability bench test device for an I-shaped thrust rod, which comprises a longitudinal loading unit and a torsion unit for coordinated loading, wherein the longitudinal loading unit is arranged at two ends of the thrust rod and is used for applying a pulling force to the thrust rod in a vertical direction; the torsion unit extends from the spherical hinges at the two ends of the thrust rod and is arranged on one side of the thrust rod so as to drive the spherical hinges at the two ends of the thrust rod to change angles, and the fatigue test of the torsion angle is realized.
The I-type thrust rod composite loading durability bench test device combines a longitudinal loading test and a torsion test, adopts a longitudinal loading unit and a torsion unit to coordinate loading, and is mutually independent and noninterfere, thereby ensuring the reliability of the test. Wherein, the longitudinal loading unit: the longitudinal reciprocating motion of the thrust rod is implemented and transmitted by connecting a longitudinal electrohydraulic servo coordination loading test system with a mounting bearing fixing seat; torsion unit: the torsion reciprocating motion is implemented and transmitted by the transverse connection of the torsion electrohydraulic servo coordination loading test system and the torsion loading force transmission frame.
Further, the longitudinal loading unit comprises a mounting bearing fixing seat, the mounting bearing fixing seat comprises mounting plate bodies which are oppositely arranged at the spherical hinges at two ends, the opposite sides of the mounting plate bodies are provided with supporting plate bodies, the supporting plate bodies are arranged in pairs to form a mounting limiting part with an opening end, and the mounting limiting part is used for clamping the torsion end of the torsion unit.
Further, the torsion end of the clamping torsion unit is a torsion frame body which is consistent with the opening direction of the support plate body; the torsion frame body is formed by extending a torsion swing arm from a spherical hinge of the thrust rod, and the torsion swing arm is connected with the torsion loading force transmission frame.
Further, the torsion frame body comprises a mounting groove body with a T-shaped cross section formed by two mutually overlapped stepped mounting seats.
Further, the stepped mounting seat comprises a first mounting seat, wherein the first mounting seat comprises a first vertical guide arm, a first mounting platform which is perpendicular to the first vertical guide arm, and a bearing wall which is connected with the first mounting platform and extends along the horizontal direction of the mounting plate body.
Further, the stepped mounting seat also comprises a second mounting seat, wherein the second mounting seat comprises a second vertical guide arm symmetrically arranged with the first vertical guide arm and a second mounting platform vertically arranged with the second vertical guide arm; the second installation platform is arranged on the bearing wall to adjust the relative distance between the second installation platform and the first installation platform and clamp and fix the ball hinge of the thrust rod.
Further, the torsion loading force transmission frame comprises a top plate connected with the electro-hydraulic servo coordination loading test system for torsion, a loading frame is arranged at the bottom of the top plate, and the loading frame is connected with the end part of the torsion swing arm through a pin shaft.
Further, the loading frame loads the torsion swing arm I at one end of the thrust rod, and drives the connecting rod shaft connected with the loading frame to transmit force to the torsion swing arm II at the other end of the thrust rod.
Further, the rod end joints assembled at the two ends of the connecting rod shaft are assembled on the first torsion swing arm and the second torsion swing arm through pin shafts.
Furthermore, tapered roller bearings and aligning roller bearings are assembled on two side plates in the installation bearing fixing seat respectively, then the installation bearing fixing seat is assembled and connected with the torsion frame, and assembly limiting is performed through the large bearing outer retainer ring and the small bearing outer retainer ring.
Compared with the prior art, the utility model has the beneficial effects that:
through structural design, the utility model discloses a complete test device capable of simulating a longitudinal and torsion combined loading durability bench test of an I-shaped thrust rod assembly. The test device has the same installation mode and movement process of a loaded mode as the I-type thrust rod assembly, and improves the effectiveness of the verification of the durability test.
The test scheme of the I-type thrust rod composite loading durability bench test device can simultaneously realize the working conditions of applying longitudinal and torsion composite loads to the I-type thrust rod, can carry out longitudinal or torsion durability tests on the I-type thrust rod, can detect the fatigue life of the I-type thrust rod under the longitudinal and torsion and longitudinal and torsion composite working conditions, and has strong use reliability.
The test system of the I-type thrust rod composite loading durability bench test device adopts electrohydraulic servo coordination loading, can realize simultaneous input of load and deformation (angle) along with longitudinal loading of the I-type thrust rod in the test process, can simulate the stress working condition of the I-type thrust rod in the actual road condition, and improves the authenticity and accuracy of the test.
Drawings
Fig. 1 is a schematic structural diagram of a front view of a test device for testing the composite loading durability of an I-type thrust rod.
FIG. 2 is a schematic view of the cross-sectional structure in the direction A-A of FIG. 1.
Fig. 3 is an installation schematic diagram of the I-type thrust rod composite loading durability bench test device according to the utility model.
In the figure: 1. the method comprises the following steps of mounting a bearing fixing seat, 3, a torsion support body, 31, a stepped mounting seat, 31A, a first mounting seat, 311, a first vertical guide arm, 312, a first mounting platform, 32, a mounting groove body, 313, a bearing wall, 31B, a second mounting seat, 311', a second vertical guide arm, 312', a second mounting platform, 4, a torsion swing arm, 41, a torsion swing arm, 42, a torsion swing arm, 5, a connecting rod shaft, 6, a pin shaft, 7, a loading frame, 8, a torsion loading force transmission frame, 81, a top plate, 82, a connecting pin shaft, 83, a power transmission seat, 9, a large bearing outer retainer ring, 10, a small bearing outer retainer ring, 101, a mounting plate body, 102, a supporting plate body, 103, a mounting limiting part, 200, a thrust rod, 201, a spherical hinge at two ends, B1 and a rod end joint bearing; b2, tapered roller shaft, B3 and self-aligning roller bearing.
Detailed Description
The technical scheme of the utility model is further elaborated below with reference to the drawings and specific embodiments.
As shown in fig. 1 to 3, the I-type thrust rod composite loading durability bench test device of the present embodiment includes a longitudinal loading unit and a torsion unit for coordinated loading, where the longitudinal loading unit is disposed at two ends of the thrust rod 200, and applies a pulling force to the thrust rod 200 in a vertical direction; the torsion unit extends from the spherical hinges 201 at the two ends of the thrust rod, is arranged on one side of the thrust rod 200, and forms an included angle with the thrust rod 200 so as to realize a torsion angle fatigue test.
The I-type thrust rod composite loading durability bench test device is particularly suitable for longitudinal and torsion composite durability test bench tests of the I-type thrust rod assembly. The I-type thrust rod composite loading durability bench test device combines a longitudinal loading test and a torsion test, adopts a longitudinal loading unit and a torsion unit to coordinate loading, and is independent of each other and not mutually interfered, so that the reliability of the test is ensured; longitudinal loading unit: the longitudinal reciprocating motion of the thrust rod is implemented and transmitted by connecting a longitudinal electrohydraulic servo coordination loading test system with a mounting bearing fixing seat; torsion unit: the torsion reciprocating motion is implemented and transmitted by the transverse connection of the torsion electrohydraulic servo coordination loading test system and the torsion loading force transmission frame. The longitudinal electrohydraulic servo coordination loading test system (load 0-200 kN, stroke + -200 mm); torsion electrohydraulic servo coordination loading test system (load 0-200 kN, stroke + -100 mm).
Specifically, the longitudinal loading unit includes a mounting bearing fixing seat 1, the mounting bearing fixing seat 1 includes a mounting plate body 101 oppositely disposed at spherical hinges 201 at two ends, opposite sides of the mounting plate body 101 are provided with support plate bodies 102 disposed in pairs, and a mounting limiting portion 103 having an opening end is formed for clamping a torsion end of the torsion unit. The mounting bearing fixing seats 1 are used for bearing and fixing the test bed, so that the thrust rod to be detected is effectively mounted between the mounting bearing fixing seats 1.
The torsion end of the clamping torsion unit is a torsion frame body 3 which is consistent with the opening direction of the support plate body 102; comprises a mounting groove body 32 with a T-shaped cross section, which is formed by two mutually overlapped stepped mounting seats 31. The stepped mounting seat 31 comprises a first mounting seat 31A, wherein the first mounting seat 31A comprises a first vertical guide arm 311, a first mounting platform 312 which is arranged vertically to the first vertical guide arm 311, and a bearing wall 313 which is connected with the first mounting platform 312 and extends along the horizontal direction of the mounting plate body; the device further comprises a second mounting seat 31B, a second vertical guide arm 311' symmetrically arranged with the first vertical guide arm 311, and a second mounting platform 312' vertically arranged with the second vertical guide arm 311 '; the second mounting platform 312 'is disposed on the bearing wall 313, and the relative distance between the second mounting platform 312' and the first mounting platform 312 is adjusted to clamp and fix the thrust rod ball hinge 201. The torsion end of the clamping torsion unit can adjust the clamping distance according to the size of the spherical hinges 201 at the two ends; tapered roller bearing B2 and aligning roller bearing B3 are respectively assembled through two side plates in the installation bearing fixing seat 1, then are assembled and connected with the torsion frame 3, and are assembled and limited through the large bearing outer retainer ring 9 and the small bearing outer retainer ring 10.
The torsion frame body 3 in the embodiment extends out of the torsion swing arm 4 from the thrust rod spherical hinge 201, and the torsion swing arm 4 is connected with the torsion loading force transmission frame 8. The torsion loading force transmission frame 8 comprises a top plate 81 connected with the torsion electro-hydraulic servo coordination loading test system, a loading frame 7 is arranged at the bottom of the top plate 81, and the loading frame 7 is connected with the end part of the torsion swing arm 4 through a pin shaft 6. The top plate 81 is provided with a vertical upward connecting lug, and is connected with a power transmission seat 83 through a connecting pin shaft 82; the power transmission seat 83 is connected with the electrohydraulic servo coordination loading test system for torsion.
The torsion swing arm 4 is divided into a first torsion swing arm 41 and a second torsion swing arm 42; the loading frame 7 loads the first torsion swing arm 41 at one end of the thrust rod 200 and drives the connecting rod shaft 5 connected with the loading frame to transmit force to the second torsion swing arm 42 at the other end of the thrust rod 200. The rod end joints B1 assembled at the two ends of the connecting rod shaft 5 are assembled on the first torsion swing arm 41 and the second torsion swing arm 42 through the pin shafts 6.
The loading frame 7 is assembled on the pin shaft 6 and is fixedly connected with the torsion loading force transmission frame 8 through bolts.
The transmission of the longitudinal loading force is connected with a longitudinal electrohydraulic servo coordination loading test system through the upper mounting bearing fixing seat 1 in the front view, so that the fatigue load test of the I-shaped thrust rod in the longitudinal direction is realized.
The transmission of the torsion angle is realized through the connection of the upper end of the torsion loading force transmission frame 8 and the torsion electrohydraulic servo coordination loading test system in the front view, and the lower end is connected with the loading frame 7. The loading frame 7 is connected with the first torsion swing arm 41, the second torsion swing arm 42, the connecting rod shaft 5 and the rod end joint bearing SI45ES of the B1, so that the transmission of force of the torsion electrohydraulic servo coordination loading test system is converted into a fatigue test of torsion angles of the upper rubber ball hinge and the lower rubber ball hinge of the I-shaped thrust rod.
The longitudinal reciprocating motion of the I-shaped thrust rod clamped by the I-shaped thrust rod composite loading durability bench test device is implemented and transmitted by connecting a longitudinal electrohydraulic servo coordination loading test system with the mounting bearing fixing seat 1; the torsion reciprocating motion is implemented and transmitted by a torsion electrohydraulic servo coordination loading test system and a torsion loading force transmission frame 8 in a transverse connection way; and the longitudinal movement of the I-shaped thrust rod assembly and the torsion movement of the rubber spherical hinge of the I-shaped thrust rod assembly are realized by the coordinated loading of the longitudinal channel and the torsion channel. The longitudinal and torsion applied frequencies are different, and the load applied by the longitudinal and torsion is in unequal step change, so that various road conditions of the I-shaped thrust rod assembly are truly simulated.
The "plurality" described in the above embodiments means the number of "two or more". The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present utility model, so that all equivalent technical solutions shall fall within the scope of the present utility model, which is defined by the claims.
Claims (10)
1. The I-type thrust rod composite loading durability bench test device is characterized by comprising a longitudinal loading unit and a torsion unit for coordinated loading, wherein the longitudinal loading unit is arranged at two ends of a thrust rod (200) and is used for applying a pulling force to the thrust rod (200) in the vertical direction; the torsion unit extends from spherical hinges (201) at two ends of the thrust rod, is arranged on one side of the thrust rod (200), and is arranged at an included angle with the thrust rod (200) so as to realize a torsion angle fatigue test.
2. The I-type thrust rod composite loading durability bench test device according to claim 1, wherein the longitudinal loading unit comprises a mounting bearing fixing seat (1), the mounting bearing fixing seat (1) comprises mounting plate bodies (101) which are oppositely arranged at two ends of a spherical hinge (201), the opposite sides of the mounting plate bodies (101) are provided with supporting plate bodies (102), the supporting plate bodies (102) are arranged in pairs to form a mounting limiting part (103) with an open end, and the mounting limiting part is used for clamping the torsion end of the torsion unit.
3. The I-type thrust rod composite loading durability bench test device according to claim 2, wherein the torsion end of the clamping torsion unit is a torsion bracket body (3) which is consistent with the opening direction of the support plate body (102); the torsion frame body (3) extends out of a torsion swing arm (4) from a thrust rod spherical hinge (201), and the torsion swing arm (4) is connected with a torsion loading force transmission frame (8).
4. The I-type thrust rod composite loading durability bench test device according to claim 3, wherein the torsion bracket body (3) comprises a mounting groove body (32) with a T-shaped cross section, which is formed by two mutually overlapped stepped mounting seats (31).
5. The I-type thrust rod composite loading durability bench test device according to claim 4, wherein the stepped mounting seat (31) comprises a first mounting seat (31A), the first mounting seat comprises a first vertical guide arm (311) and a first mounting platform (312) which is arranged perpendicular to the first vertical guide arm (311), and a bearing wall (313) which is connected with the first mounting platform (312) and extends along the horizontal direction of the mounting plate body.
6. The I-type thrust rod composite loading durability bench test device according to claim 5, wherein the stepped mounting seat (31) further comprises a second mounting seat (31B), the second mounting seat (31B) comprises a second vertical guide arm (311 ') symmetrically arranged with the first vertical guide arm (311), and a second mounting platform (312 ') vertically arranged with the second vertical guide arm (311 '); the second mounting platform (312') is arranged on the bearing wall (313) so as to adjust the relative distance between the second mounting platform and the first mounting platform (312) and clamp and fix the thrust rod spherical hinge (201).
7. The I-type thrust rod composite loading durability bench test device according to claim 3, wherein the torsion loading force transmission frame (8) comprises a top plate (81) connected with an electrohydraulic servo coordination loading test system for torsion, a loading frame (7) is arranged at the bottom of the top plate (81), and the loading frame (7) is connected with the end part of the torsion swing arm (4) through a pin shaft (6).
8. The I-type thrust rod composite loading durability bench test device according to claim 7, wherein the torsion swing arm is divided into a torsion swing arm one (41) and a torsion swing arm two (42); the loading frame (7) loads a first torsion swing arm (41) at one end of the thrust rod (200) to drive a connecting rod shaft (5) connected with the loading frame to transmit force to a second torsion swing arm (42) at the other end of the thrust rod (200).
9. The I-type thrust rod composite loading durability bench test device according to claim 8, wherein the rod end joints (B1) at two ends of the connecting rod shaft (5) are assembled on the first torsion swing arm (41) and the second torsion swing arm (42) through pin shafts (6).
10. The I-type thrust rod composite loading durability bench test device according to any one of claims 2-9, characterized in that tapered roller bearings (B2) and aligning roller bearings (B3) are respectively assembled on two side plates in the mounting bearing fixing seat (1), and then are assembled and connected with the torsion frame body (3), and are assembled and limited through a large bearing outer retainer ring (9) and a small bearing outer retainer ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320671416.0U CN219589931U (en) | 2023-03-30 | 2023-03-30 | I type distance rod composite loading durability bench test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320671416.0U CN219589931U (en) | 2023-03-30 | 2023-03-30 | I type distance rod composite loading durability bench test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219589931U true CN219589931U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320671416.0U Active CN219589931U (en) | 2023-03-30 | 2023-03-30 | I type distance rod composite loading durability bench test device |
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| Country | Link |
|---|---|
| CN (1) | CN219589931U (en) |
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2023
- 2023-03-30 CN CN202320671416.0U patent/CN219589931U/en active Active
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