CN219161892U - Device for testing fatigue strength of seat cushion - Google Patents
Device for testing fatigue strength of seat cushion Download PDFInfo
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- CN219161892U CN219161892U CN202223190988.1U CN202223190988U CN219161892U CN 219161892 U CN219161892 U CN 219161892U CN 202223190988 U CN202223190988 U CN 202223190988U CN 219161892 U CN219161892 U CN 219161892U
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Abstract
The utility model relates to a device for testing fatigue strength of a seat cushion, and belongs to the technical field of testing devices. The device for testing the fatigue strength of the cushion comprises a frame, wherein a top plate is arranged at the top of the frame, two adjusting press strips are arranged on the top plate, a Z-axis outer box is connected between the two adjusting press strips in a sliding mode, a screw rod nut is arranged in the Z-axis outer box, the screw rod is connected with a hand wheel, the nut is connected with a moving platform, a Z-axis guide rod is arranged on the moving platform, weights are arranged at the top of the Z-axis guide rod, and a rubber pad is arranged at the bottom of the Z-axis guide rod; a supporting plate for placing the cushion is arranged below the rubber pad, a bearing is arranged on the top plate, a guide rod penetrating through the top plate is arranged in the bearing, and the top of the guide rod is connected with the supporting plate; the bottom plate is installed to the frame bottom, installs the motor on the bottom plate, and motor coupling is connected with the adjustment cassette, installs adjusting nut on the adjustment cassette, installs the fisheye joint on the adjusting nut, and the fisheye joint other end is connected with the guide arm. The utility model has small overall size and low requirements on the field.
Description
Technical Field
The utility model relates to a device for testing fatigue strength of a seat cushion, and belongs to the technical field of testing devices.
Background
In the prior art, an air cylinder or a vibration machine is generally used for testing the fatigue strength of the cushion, but the air cylinder needs an air cylinder or an air station, so that the requirement on the field is too high, the volume of vibration machine equipment is too large, the assembly, the transportation and the maintenance are difficult, and the transportation cost is too high.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a device for testing the fatigue strength of a cushion, so as to solve the technical problem that a cylinder and a vibrating machine in the related art have too high requirements on the field.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:
the utility model provides a device for testing the fatigue strength of a cushion, which comprises a frame, wherein a top plate is arranged at the top of the frame, two adjusting press strips are arranged on the top plate, a Z-axis outer box is connected between the two adjusting press strips in a sliding manner, a screw rod is arranged in the Z-axis outer box, a nut is connected onto the screw rod in a sliding manner, the top of the screw rod is connected with a hand wheel, the nut is connected with a moving platform, a Z-axis guide rod is arranged on the moving platform, weights are arranged at the top of the Z-axis guide rod, and a rubber pad is arranged at the bottom of the Z-axis guide rod;
a supporting plate for placing a cushion is arranged below the rubber pad, a plurality of bearings are arranged on the top plate, guide rods penetrating through the top plate are arranged in the bearings, and the top of each guide rod is connected with the supporting plate;
the bottom plate is installed to the frame bottom, install the motor on the bottom plate, the output shaft of motor has the shaft coupling, the output shaft of shaft coupling has the adjustment cassette, install adjusting nut on the adjustment cassette, install first fisheye joint on the adjusting nut, first fisheye joint is connected with the hexagonal screw rod, the hexagonal screw rod is kept away from first fisheye joint's one end is installed the second fisheye joint, the second fisheye joint with one of them the guide arm is connected.
Further, a connecting plate is arranged below the guide rod connected with the second fisheye joint, a stay wire type displacement sensor is further arranged on the connecting plate, and the stay wire type displacement sensor is connected with a displacement sensor mounting plate arranged on the cushion through a stay wire.
Further, a bearing seat is connected to the coupler, and a proximity switch is installed on the bearing seat.
Further, an adjusting screw rod connected with the adjusting nut is arranged in the adjusting clamping seat, the adjusting screw rod penetrates through the adjusting clamping seat and is provided with an adjusting hand wheel, and bearings with seats are arranged at two ends of the adjusting clamping seat.
Further, a linear bearing is arranged on the moving platform, and a Z-axis guide rod penetrating through the moving platform is arranged in the linear bearing.
Further, a cushion block is sleeved on the Z-axis guide rod.
Further, four feet are arranged at the bottom of the frame.
Further, sealing plates are arranged on the side surfaces of the frames.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has no requirement of gas tank and gas station, reduces the requirement of the testing device on the place, has small overall size and saves time and transportation cost.
Drawings
FIG. 1 is a schematic diagram of a device for testing fatigue strength of a seat cushion according to an embodiment of the present utility model;
in the figure: 1: a frame; 2: a top plate; 3: adjusting the pressing bar; 4: a Z-axis outer box; 5: a screw rod; 6: a nut; 7: a hand wheel; 8: a mobile platform; 9: a Z-axis guide rod; 10: a weight; 11: a rubber pad; 12: a supporting plate; 13: a bearing; 14: a guide rod; 15: a bottom plate; 16: a motor; 17: a coupling; 18: adjusting the clamping seat; 19: an adjusting nut; 20: a first fisheye joint; 21: a hexagonal screw; 22: a second fish-eye joint; 23: a connecting plate; 24: a pull-wire type displacement sensor; 25: a pull wire; 26: a displacement sensor mounting plate; 27: a bearing seat; 28: a proximity switch; 29: an adjusting hand wheel; 30: adjusting a screw rod; 31: a linear bearing; 32: a cushion block; 33: a foot margin; 34: and (5) sealing plates.
Detailed Description
The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, this embodiment provides a test cushion fatigue strength device, including frame 1, roof 2 is installed at frame 1 top, install two regulation layering 3 on the roof 2, two sliding connection has Z axle outer box 4 between the regulation layering 3, install lead screw 5 in the Z axle outer box 4, sliding connection has nut 6 on the lead screw 5, lead screw 5 top is connected with hand wheel 7, nut 6 is connected with moving platform 8, install Z axle guide bar 9 on the moving platform 8, weight 10 is installed at Z axle guide bar 9 top, rubber pad 11 is installed to the bottom.
Specifically, during testing, the Z-axis outer box 4 can be operated to slide left and right along the adjusting pressing strip 3, and the moving platform 8 is controlled to lift through the hand wheel 7 to adjust the testing position so as to detect cushions with different types and specifications, and the number of the weights 10 can be increased or decreased to adjust the testing parameters.
In this embodiment, a linear bearing 31 is mounted on the moving platform 8, and a Z-axis guide rod 9 penetrating through the moving platform 8 is mounted inside the linear bearing 31.
In this embodiment, the Z-axis guide rod 9 is sleeved with a cushion block 32.
In this embodiment, a supporting plate 12 for placing a cushion is installed below the rubber pad 11, a plurality of bearings 13 are installed on the top plate 2, guide rods 14 penetrating through the top plate 2 are installed inside the bearings 13, and the top of each guide rod 14 is connected with the supporting plate 12.
Specifically, the supporting plate 12 is guided by three guide rods 14 and bearings 13, so as to ensure stability during vibration.
In this embodiment, the bottom plate 15 is installed to frame 1 bottom, install motor 16 on the bottom plate 15, the output shaft of motor 16 has shaft coupling 17, the output shaft of shaft coupling 17 has adjustment cassette 18, install adjusting nut 19 on the adjustment cassette 18, install first fisheye joint 20 on the adjusting nut 19, first fisheye joint 20 is connected with hexagonal screw 21, hexagonal screw 21 keeps away from first fisheye joint 20's one end is installed second fisheye joint 22, second fisheye joint 22 is connected with one of them guide arm 14.
Specifically, the motor 16 is a main power unit, the rotation speed of the motor 16 is adjusted to adjust the vibration frequency of the supporting plate 12, and in order to rapidly test the fatigue strength of the seat cushion, the motor 16 with high rotation speed is selected, the rotation speed of the motor 16 is high, the vibration frequency of the supporting plate 12 is high, and the test period can be reduced.
In this embodiment, a bearing seat 27 is connected to the coupling 17, and a proximity switch 28 is mounted on the bearing seat 27.
Specifically, the proximity switch 28 is configured to provide a control command to the control center to return the testing device to the initial position.
In this embodiment, an adjusting screw rod 30 connected to the adjusting nut 19 is installed inside the adjusting socket 18, the adjusting screw rod 30 penetrates through the adjusting socket 18 and is provided with an adjusting hand wheel 29, and two ends of the adjusting socket 18 are provided with bearings with seats.
The adjusting clamping seat 18 can adjust the vibration amplitude of the supporting plate 12 according to different testing requirements, specifically, the adjusting hand wheel 29 is rotated, the adjusting screw rod 30 is rotated along with the adjusting hand wheel, the adjusting nut 19 is moved, and the vibration amplitude of the supporting plate 12 is larger when the adjusting nut deviates from the central shaft.
In this embodiment, a connection plate 23 is installed below the guide rod 14 connected to the second fisheye joint 22, and a stay wire type displacement sensor 24 is further installed on the connection plate 23, where the stay wire type displacement sensor 24 is connected to a displacement sensor mounting plate 26 installed on the seat cushion through a stay wire 25.
Specifically, the pull-wire displacement sensor 24 can detect whether the vibration amplitude meets the test requirement.
In this embodiment, four feet 33 are mounted on the bottom of the frame 1.
In this embodiment, the side surfaces of the frame 1 are each provided with a sealing plate 34.
The working principle of this embodiment is as follows:
before starting a test, firstly placing a cushion on a supporting plate 12, then moving a Z-axis outer box 4 to enable a rubber cushion 11 to be opposite to the cushion, then rotating a hand wheel 7, enabling the hand wheel 7 to drive a screw rod 5 to rotate, enabling the screw rod 5 to drive a nut 6 to move, enabling the nut 6 to drive a movable platform 8 to lift to a position suitable for the test, after the test position is adjusted, starting a motor 16, driving an adjusting clamping seat 18 to rotate in the rotating process of the motor 16, enabling the adjusting clamping seat 18 to drive a guide rod 14 to vibrate up and down through an adjusting nut 19, enabling the guide rod 14 to drive the supporting plate 12 to vibrate up and down, and enabling the supporting plate 12 to impact the rubber cushion 11 during the up and down vibration, so as to test the fatigue strength of the cushion.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.
Claims (8)
1. The utility model provides a test cushion fatigue strength device, its characterized in that, including frame (1), roof (2) are installed at frame (1) top, install two regulation layering (3) on roof (2), two sliding connection has Z axle outer case (4) between regulation layering (3), install lead screw (5) in Z axle outer case (4), be connected with nut (6) on lead screw (5), lead screw (5) top is connected with hand wheel (7), nut (6) are connected with moving platform (8), install Z axle guide bar (9) on moving platform (8), weight (10) are installed at Z axle guide bar (9) top, rubber pad (11) are installed to the bottom;
a supporting plate (12) for placing a cushion is arranged below the rubber pad (11), a plurality of bearings (13) are arranged on the top plate (2), guide rods (14) penetrating through the top plate (2) are arranged in the bearings (13), and the top of each guide rod (14) is connected with the supporting plate (12);
the bottom plate (15) is installed to frame (1) bottom, install motor (16) on bottom plate (15), the output shaft of motor (16) has shaft coupling (17), the output shaft of shaft coupling (17) has adjustment cassette (18), install adjusting nut (19) on adjustment cassette (18), install first fisheye joint (20) on adjusting nut (19), first fisheye joint (20) are connected with hexagonal screw rod (21), hexagonal screw rod (21) keep away from second fisheye joint (22) are installed to the one end of first fisheye joint (20), second fisheye joint (22) with one of them guide arm (14) are connected.
2. The device for testing the fatigue strength of the seat cushion according to claim 1, wherein a connecting plate (23) is arranged below a guide rod (14) connected with the second fish-eye joint (22), a stay-supported displacement sensor (24) is further arranged on the connecting plate (23), and the stay-supported displacement sensor (24) is connected with a displacement sensor mounting plate (26) arranged on the seat cushion through a stay wire (25).
3. The device for testing the fatigue strength of the seat cushion according to claim 1, wherein a bearing seat (27) is connected to the coupler (17), and a proximity switch (28) is mounted on the bearing seat (27).
4. The device for testing the fatigue strength of the seat cushion according to claim 1, wherein an adjusting screw rod (30) connected with the adjusting nut (19) is installed inside the adjusting clamping seat (18), the adjusting screw rod (30) penetrates through the adjusting clamping seat (18) and is provided with an adjusting hand wheel (29), and two ends of the adjusting clamping seat (18) are provided with bearing seats.
5. The device for testing the fatigue strength of the cushion according to claim 1, wherein a linear bearing (31) is mounted on the moving platform (8), and a Z-axis guide rod (9) penetrating through the moving platform (8) is mounted in the linear bearing (31).
6. The device for testing the fatigue strength of the cushion according to claim 1, wherein the Z-axis guide rod (9) is sleeved with a cushion block (32).
7. The device for testing the fatigue strength of a seat cushion according to claim 1, wherein four feet (33) are mounted at the bottom of the frame (1).
8. A device for testing the fatigue strength of a seat cushion according to claim 1, characterised in that the side faces of the frame (1) are each provided with a closing plate (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223190988.1U CN219161892U (en) | 2022-11-30 | 2022-11-30 | Device for testing fatigue strength of seat cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223190988.1U CN219161892U (en) | 2022-11-30 | 2022-11-30 | Device for testing fatigue strength of seat cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219161892U true CN219161892U (en) | 2023-06-09 |
Family
ID=86615884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223190988.1U Active CN219161892U (en) | 2022-11-30 | 2022-11-30 | Device for testing fatigue strength of seat cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219161892U (en) |
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2022
- 2022-11-30 CN CN202223190988.1U patent/CN219161892U/en active Active
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