CN212254570U - Fatigue endurance testing machine for stabilizer bar - Google Patents
Fatigue endurance testing machine for stabilizer bar Download PDFInfo
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- CN212254570U CN212254570U CN202021247234.3U CN202021247234U CN212254570U CN 212254570 U CN212254570 U CN 212254570U CN 202021247234 U CN202021247234 U CN 202021247234U CN 212254570 U CN212254570 U CN 212254570U
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- connecting seat
- stabilizer bar
- testing machine
- cross hinge
- fatigue endurance
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Abstract
The utility model discloses a stabilizer bar fatigue endurance testing machine, wherein the bottom end of a servo loading mechanism is connected with a workpiece to be tested and can stretch out and draw back to apply vibration to the workpiece to be tested; the cross hinge device comprises an upper connecting seat, a cross hinge shaft and a lower connecting seat, and the upper connecting seat and the lower connecting seat are in different angles through two mutually vertical rotating shafts; the upper connecting seat is fixedly connected to the portal frame, the lower connecting seat is fixedly connected to the servo loading mechanism, and the upper connecting seat can be positioned at different angles through the cross hinge shaft to simulate the application of vibration force to different angles of a workpiece to be measured; go up between connecting seat and the cross hinge and fix a position through wedge-shaped first cushion cartridge, cross hinge and fix a position through wedge-shaped second cushion cartridge between the connecting seat down, select the first cushion and the second cushion of suitable size shape, make cross hinge device keep at specific angle after inserting, servo loading mechanism keeps in the force application direction of predetermineeing, can simulate the vibration direction that the in-service use in-process received, and the testing result is more close truely.
Description
Technical Field
The utility model relates to a test equipment field further relates to a stabilizer bar fatigue endurance testing machine.
Background
With the rapid development of the automobile industry, automobiles have become a common vehicle for people in daily life; in order to improve the running smoothness of an automobile, the suspension stiffness is usually designed to be lower, but the running stability of the automobile is influenced, so that a transverse stabilizer bar structure is adopted in a suspension system to improve the roll angle stiffness of the suspension, prevent an automobile body from generating overlarge transverse roll when the automobile body turns, and keep the automobile body balanced as much as possible; the stabilizer bar is also called anti-roll bar and balance bar, is an auxiliary elastic element in the automobile suspension, and is a key component for keeping the balance of the automobile body.
The material selection, the structural design, the fatigue strength, the service life and other performances of the stabilizer bar directly influence the development of the automobile industry and the safety of drivers and passengers, so that the material and the fatigue performance of the stabilizer bar are more and more emphasized by the development of the automobile industry, and the significance of the performance test of the stabilizer bar under a real working environment is important to the design of the stabilizer bar.
Traditional stabilizer bar fatigue test equipment can only exert the effort through servo actuator's flexible, can't simulate the real operational environment of vehicle.
For those skilled in the art, how to more accurately simulate the vibration suffered by the real work of the automobile is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stabilizer bar fatigue endurance testing machine can adjust servo loading mechanism's direction to more accurately simulate the vibration that the real work of car received, concrete scheme is as follows:
a stabilizer bar fatigue endurance testing machine comprising:
the portal frame is arranged on the test platform, and the test platform is used for fixedly clamping a workpiece to be tested;
the bottom end of the servo loading mechanism is connected with a workpiece to be detected, and the servo loading mechanism can stretch and apply vibration;
the cross hinge device comprises an upper connecting seat, a cross hinge shaft and a lower connecting seat, wherein the upper connecting seat and the lower connecting seat are respectively hinged with the cross hinge shaft, and two rotating shafts are vertical to each other; the upper connecting seat is fixedly connected to the portal frame, and the lower connecting seat is fixedly connected to the servo loading mechanism; the upper connecting seat and the cross-shaped hinge shaft are positioned through a wedge-shaped first cushion block in an inserted mode, and the cross-shaped hinge shaft and the lower connecting seat are positioned through a wedge-shaped second cushion block in an inserted mode.
Optionally, the cross hinge device is arranged on the transverse moving seat, the transverse moving seat comprises an upper pressing plate and a lower pressing plate, and the upper pressing plate and the lower pressing plate are respectively pressed on the cross beam of the portal frame and screwed or loosened through bolts.
Optionally, the gantry crane further comprises a transverse adjusting device, wherein the transverse adjusting device comprises a screw rod rotatably arranged on the gantry crane beam and a nut arranged on the upper pressing plate.
Optionally, a scale is arranged on the gantry beam, and a pointer is arranged on the transverse moving seat.
Optionally, the servo loading mechanism comprises a piston rod, a cylinder, a servo valve and an energy accumulator, a guide sleeve is arranged on the cylinder, a guide rod is inserted into the guide sleeve, and the guide rod can slide in a translation mode along the guide sleeve.
Optionally, the test platform further comprises a loading stabilizing support arranged on the test platform, a sliding groove is vertically arranged on the loading stabilizing support, and the cylinder barrel is inserted into the sliding groove through a shaft pin.
Optionally, a load sensor for detecting pressure is provided at the front end of the piston rod.
Optionally, a positioning hole is vertically formed in an upright post of the portal frame, and a beam of the portal frame is adjusted in vertical height in a step mode through the positioning hole.
The utility model provides a stabilizer bar fatigue endurance testing machine, wherein a portal frame is arranged on a testing platform, and the testing platform is used for fixedly clamping a workpiece to be tested; the bottom end of the servo loading mechanism is connected with a workpiece to be tested and can stretch out and draw back to apply vibration to the workpiece to be tested; the cross hinge device comprises an upper connecting seat, a cross hinge shaft and a lower connecting seat, wherein the upper connecting seat and the lower connecting seat are respectively hinged with the cross hinge shaft, the two rotating shafts are mutually vertical, and the upper connecting seat and the lower connecting seat are in different angles through the two mutually vertical rotating shafts; the upper connecting seat is fixedly connected with the portal frame, the lower connecting seat is fixedly connected with the servo loading mechanism, and the servo loading mechanism can be loaded through extension and retraction, so that the servo loading mechanism of the utility model can be positioned at different angles through the cross-shaped hinge shaft, and can simulate the application of vibration force to different angles of the workpiece to be tested; go up between connecting seat and the cross hinge and fix a position through wedge-shaped first cushion cartridge, cross hinge and fix a position through wedge-shaped second cushion cartridge between the connecting seat down, select the first cushion and the second cushion of suitable size shape, make cross hinge device keep at specific angle after inserting, servo loading mechanism keeps in the force application direction of predetermineeing, can simulate the vibration direction that the in-service use in-process received, and the testing result is more close truely.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1A to fig. 1C are a front view, a side view and a top view of a stabilizer bar fatigue endurance testing machine provided by the present invention, respectively;
figures 2A and 2B are isometric and bottom views, respectively, of a cross-hinge assembly;
FIGS. 3A and 3B are front and side views, respectively, of a cross-hinge;
FIG. 3C is a cross-sectional view taken along line A-A of FIG. 3B;
FIG. 4 is a structural view of an assembly moving base on a gantry;
FIG. 5 is a schematic view of the adjustment mechanism;
fig. 6 is a schematic diagram of a specific structure of the servo loading mechanism.
The figure includes:
the device comprises a portal frame 1, a servo loading mechanism 2, a piston rod 21, a cylinder 22, a servo valve 23, an energy accumulator 24, a guide sleeve 25, a guide rod 26, a cross hinge device 3, an upper connecting seat 31, a cross hinge shaft 32, a lower connecting seat 33, a test platform 4, a transverse moving seat 5, an upper pressing plate 51, a lower pressing plate 52, a bolt 53, a transverse adjusting device 6, a screw rod 61, a nut 62 and a loading stabilizing support 7.
Detailed Description
The utility model discloses a core lies in providing a stabilizer bar fatigue endurance testing machine, can adjust servo loading mechanism's direction to more accurately simulate the vibration that the real work of car received.
In order to make those skilled in the art better understand the technical solution of the present invention, the stabilizer bar fatigue endurance testing machine of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model provides a stabilizer bar fatigue endurance testing machine, as shown in fig. 1A to fig. 1C, which are respectively the front view, the side view and the top view of the stabilizer bar fatigue endurance testing machine provided by the utility model, wherein A represents the workpiece to be tested, and the workpiece to be tested comprises components such as an automobile stabilizer bar and a connecting rod; the device comprises a portal frame 1, a servo loading mechanism 2, a cross hinge device 3, a test platform 4 and other structures, wherein the test platform 4 is positioned on the ground to play a supporting role, a workpiece to be tested is placed on the test platform 4, and fixed clamping is realized by a clamp arranged on the test platform; the portal frame 1 is arranged on the test platform 4 and is positioned above the workpiece to be tested.
The bottom end of the servo loading mechanism 2 is connected with a workpiece to be tested, two servo loading mechanisms are arranged, the bottom end of each servo loading mechanism is connected with one end of the workpiece to be tested, the servo loading mechanism 2 can stretch out and draw back, vibration is applied to the workpiece to be tested, and the direction of the applied vibration is the same as the stretching direction of the servo loading mechanism 2.
As shown in fig. 2A and 2B, which are an axonometric view and a bottom view, respectively, of the cross hinge 3, fig. 3A and 3B, which are a front view and a side view, respectively, of the cross hinge 3, and fig. 3C, which is a sectional view in the direction a-a in fig. 3B; the cross hinge device 3 comprises an upper connecting seat 31, a cross hinge shaft 32 and a lower connecting seat 33, wherein the upper connecting seat 31 comprises a fixing plate and two rib plates vertically arranged on the fixing plate, the two rib plates are relatively and rotatably connected with the cross hinge shaft 32 through a rotating shaft, and the lower connecting seat 33 is similar to the upper connecting seat 31 in structure and is relatively and rotatably connected with the cross hinge shaft 32 through the rotating shaft. Go up connecting seat 31 and lower connecting seat 33 and articulate with cross hinge 32 respectively, and two pivot mutually perpendicular, lower connecting seat 33 can realize the rotation of two dimensions for last connecting seat 31.
Go up connecting seat 31 fixed connection in portal frame 1, its position keeps relatively fixed, and lower connecting seat 33 fixed connection is in servo loading mechanism 2's top, and servo loading mechanism 2 can realize the rotation of two dimensions through cross hinge means 3.
A wedge-shaped first cushion block can be inserted into a gap between the upper connecting seat 31 and the cross hinge shaft 32, and the cross hinge shaft 32 is positioned and fixed relative to the upper connecting seat 31 through the insertion positioning of the first cushion block; a wedge-shaped second cushion block can be inserted into a gap between the cross-shaped hinge shaft 32 and the lower connecting seat 33, and the lower connecting seat 33 is positioned and fixed relative to the cross-shaped hinge shaft 32 through the insertion positioning of the second cushion block. First cushion and second cushion are the wedge, and one side thickness is big, and opposite side thickness is little, chooses the wedge of suitable inclination for use according to the angle that will reach during the use, correspond to insert between connecting seat 31 and the cross hinge 32, and between cross hinge 32 and the lower connecting seat 33, finally make servo loading mechanism 2 be in suitable orientation, can apply the vibrational force of specific direction to being surveyed the work piece, can simulate the vibration direction that receives in the in-service use process, and the testing result is more close truely.
On the basis of the above scheme, in order to further facilitate adjustment, the cross-shaped hinge device 3 of the present invention is disposed on the transverse moving seat 5, as shown in fig. 4, which is a structural diagram for assembling the moving seat 5 on the portal frame 1, the transverse moving seat 5 includes an upper pressing plate 51 and a lower pressing plate 52, and the cross-shaped hinge device 3 is mounted on the lower pressing plate 52; the portal frame 1 is provided with a transversely extending beam, an upper pressure plate 51 and a lower pressure plate 52 are respectively pressed on the beam of the portal frame 1, the upper pressure plate 51 is pressed on the upper surface of the beam, the lower pressure plate 52 is pressed on the lower surface of the beam, the widths of the upper pressure plate 51 and the lower pressure plate 52 are both larger than the width of the beam, through holes are formed in the parts of the upper pressure plate 51 and the lower pressure plate 52, which extend out of the beam, bolts 53 are inserted into the through holes, external threads are arranged at two ends of each bolt 53, and the bolts 53 are screwed or loosened; when the bolts 53 are matched with nuts to be screwed, the upper pressing plate 51 and the lower pressing plate 52 are tightly attached to the cross beam, the positions of the upper pressing plate 51 and the lower pressing plate 52 are relatively fixed, and when the bolts 53 are loosened, the upper pressing plate 51 and the lower pressing plate 52 are relatively separated from the cross beam and can move transversely to adjust the position of the servo loading mechanism 2.
Further, the utility model discloses still include transverse adjusting device 6, fig. 5 is the crossbeam to adjusting device 6's schematic structure, it is shown to combine fig. 1C, transverse adjusting device 6 sets up lead screw 61 on portal frame 1 crossbeam including rotating and sets up nut 62 on top board 51, lead screw 61 is transverse extension, lead screw 61 keeps screw-thread fit with nut 62, nut 62 drives 5 lateral shifting of lateral shifting seat when lead screw 61 rotates, can make things convenient for the position of accurate regulation lateral shifting seat 5 more. During adjustment, the bolt 53 is loosened to loosen the upper pressing plate 51 and the lower pressing plate 52 from the cross beam, the screw rod 61 is screwed, the transverse moving seat 5 is adjusted to a proper position, and then the bolt 53 is screwed again to tighten and fix the upper pressing plate 51 and the lower pressing plate 52.
Preferably, a scale is arranged on the cross beam of the portal frame 1, and a pointer is arranged on the transverse moving seat 5, so that the position of the transverse moving seat 5 can be accurately indicated.
As shown in fig. 6, which is a schematic structural diagram of the servo loading mechanism 2, the servo loading mechanism 2 includes a piston rod 21, a cylinder 22, a servo valve 23, and an energy accumulator 24, and the piston rod 21 is capable of extending and contracting relative to the cylinder 22; the cylinder 22 is fixedly provided with a guide sleeve 25, two ends of the guide sleeve 25 are communicated, a guide rod 26 is inserted in the guide sleeve 25, the guide rod 26 is fixed on the piston rod 21, and the guide rod 26 can horizontally slide along the guide sleeve 25 to guide the extension and retraction of the piston rod 21.
The front end of the piston rod 21 is provided with a load sensor for detecting pressure, and the pressure applied to the workpiece by the piston rod 21 is detected in real time.
As shown in fig. 1A, the utility model discloses still including setting up loading stabilizing support 7 on test platform 4, loading stabilizing support 7 is vertical setting, along vertical setting spout on loading stabilizing support 7, in cylinder 22 inserted the spout through the pivot, when servo loading mechanism 2 is flexible when exerting the vibration to the work piece under test, loading stabilizing support 7 can provide horizontal support to servo loading mechanism 2, bears servo loading mechanism 2's horizontal effort, keeps servo loading mechanism 2's stability.
The vertical locating hole of seting up on portal frame 1's the stand, portal frame 1's crossbeam cover can be for the vertical slip of stand, portal frame 1's crossbeam has the vertical height of level regulation through the locating hole, inserts the bolt in the locating hole after the crossbeam reachs suitable position, can conveniently adjust to be applied to not unidimensional quilt and surveyed the work piece.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A stabilizer bar fatigue endurance testing machine is characterized by comprising:
the portal frame (1) is arranged on the test platform (4), and the test platform (4) is used for fixedly clamping a workpiece to be tested;
the bottom end of the servo loading mechanism (2) is connected with a workpiece to be detected and can stretch and exert vibration;
the cross hinge device (3) comprises an upper connecting seat (31), a cross hinge shaft (32) and a lower connecting seat (33), the upper connecting seat (31) and the lower connecting seat (33) are respectively hinged with the cross hinge shaft (32), and the two rotating shafts are vertical to each other; the upper connecting seat (31) is fixedly connected to the portal frame (1), and the lower connecting seat (33) is fixedly connected to the servo loading mechanism (2); the upper connecting seat (31) and the cross hinge shaft (32) are positioned through a wedge-shaped first cushion block in an inserted mode, and the cross hinge shaft (32) and the lower connecting seat (33) are positioned through a wedge-shaped second cushion block in an inserted mode.
2. The stabilizer bar fatigue endurance testing machine according to claim 1, wherein the cross hinge (3) is provided on a lateral movement seat (5), the lateral movement seat (5) includes an upper pressing plate (51) and a lower pressing plate (52), the upper pressing plate (51) and the lower pressing plate (52) are respectively pressed against a cross beam of the gantry (1), and are tightened or loosened by bolts (53).
3. The stabilizer bar fatigue endurance testing machine according to claim 2, further comprising a lateral adjustment device (6), wherein the lateral adjustment device (6) comprises a screw rod (61) rotatably disposed on the gantry (1) beam, and a nut (62) disposed on the upper platen (51).
4. The stabilizer bar fatigue endurance testing machine of claim 3, wherein a scale is disposed on a cross beam of the gantry (1), and a pointer is disposed on the lateral moving seat (5).
5. The stabilizer bar fatigue endurance testing machine according to claim 1, wherein the servo loading mechanism (2) comprises a piston rod (21), a cylinder (22), a servo valve (23), and an energy accumulator (24), a guide sleeve (25) is disposed on the cylinder (22), a guide rod (26) is inserted into the guide sleeve (25), and the guide rod (26) can slide in a translation manner along the guide sleeve (25).
6. The stabilizer bar fatigue endurance testing machine of claim 5, further comprising a loading stabilizing bracket (7) disposed on the testing platform (4), wherein a sliding groove is vertically disposed on the loading stabilizing bracket (7), and the cylinder (22) is inserted into the sliding groove through a shaft pin.
7. The stabilizer bar fatigue endurance testing machine according to claim 5, wherein a load sensor for detecting pressure is provided at a front end of the piston rod (21).
8. The stabilizer bar fatigue endurance testing machine of claim 1, wherein a vertical column of the gantry (1) is vertically provided with positioning holes, and a cross beam of the gantry (1) is adjusted in vertical height in stages through the positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247234.3U CN212254570U (en) | 2020-06-30 | 2020-06-30 | Fatigue endurance testing machine for stabilizer bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021247234.3U CN212254570U (en) | 2020-06-30 | 2020-06-30 | Fatigue endurance testing machine for stabilizer bar |
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| CN212254570U true CN212254570U (en) | 2020-12-29 |
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| CN202021247234.3U Active CN212254570U (en) | 2020-06-30 | 2020-06-30 | Fatigue endurance testing machine for stabilizer bar |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674537A (en) * | 2022-03-14 | 2022-06-28 | 梅州广汽汽车弹簧有限公司 | Stabilizer bar fatigue test equipment with positioning function |
| CN116929689A (en) * | 2023-09-18 | 2023-10-24 | 扬州东升汽车零部件股份有限公司 | Fatigue testing device for cab suspension system |
| CN118111653A (en) * | 2024-04-30 | 2024-05-31 | 江苏欧皇电动科技有限公司 | Front fork vibration test platform |
-
2020
- 2020-06-30 CN CN202021247234.3U patent/CN212254570U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114674537A (en) * | 2022-03-14 | 2022-06-28 | 梅州广汽汽车弹簧有限公司 | Stabilizer bar fatigue test equipment with positioning function |
| CN114674537B (en) * | 2022-03-14 | 2023-10-13 | 梅州广汽汽车弹簧有限公司 | Stabilizer bar fatigue test equipment with positioning function |
| CN116929689A (en) * | 2023-09-18 | 2023-10-24 | 扬州东升汽车零部件股份有限公司 | Fatigue testing device for cab suspension system |
| CN116929689B (en) * | 2023-09-18 | 2023-12-05 | 扬州东升汽车零部件股份有限公司 | Fatigue testing device for cab suspension system |
| CN118111653A (en) * | 2024-04-30 | 2024-05-31 | 江苏欧皇电动科技有限公司 | Front fork vibration test platform |
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