CN213091183U - Dynamic test platform for backrest - Google Patents
Dynamic test platform for backrest Download PDFInfo
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- CN213091183U CN213091183U CN202022049585.XU CN202022049585U CN213091183U CN 213091183 U CN213091183 U CN 213091183U CN 202022049585 U CN202022049585 U CN 202022049585U CN 213091183 U CN213091183 U CN 213091183U
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Abstract
The application relates to a dynamic test platform for a backrest, and belongs to the technical field of vehicle manufacturing. The application provides a back dynamic test platform, includes: the frame is used for fixing a bed board of a commercial vehicle sleeper; the rotary pressing device is rotatably arranged on the rack and is used for driving the backrest to rotate around the first axis and pressing the backrest downwards; the rotary driving device is arranged on the rack and used for driving the rotary pressing device to rotate around a first axis, so that the rotary pressing device is provided with a plurality of preset testing angle positions, and the preset testing angle positions correspond to preset adjusting angle positions of the backrest one to one; under the effect of rotation drive arrangement, rotate to push down the device and drive the back and rotate to one of a plurality of test angle positions of predetermineeing, rotate and push down the device and can be fixed in and predetermine test angle position and push down the back in the front of back to the intensity of test back. Through back dynamic test platform, can carry out durability and safety test to the back of sleeping berth, can test the reliability of back.
Description
Technical Field
The application relates to the technical field of vehicle manufacturing, in particular to a dynamic test platform for a backrest.
Background
In interior trim parts of commercial vehicles, a sleeper is usually designed with a backrest. In order to improve the comfort of the user, the backrest is usually designed to be adjustable in the front-back inclination angle so as to adapt to the different requirements of the user in the lying or sitting posture. The backrest needs to be strong enough to maintain the angular position when the user leans against the backrest. When the backrest is fixed at a preset angle, if the backrest deforms, breaks or slides down when the user leans backwards on the backrest, not only the comfort of the user may be reduced, but also the personal safety of the user may be damaged. The sleeping berth belongs to one-level assembly in the whole vehicle assembly, and in order to ensure the reliability of the sleeping berth, the sleeping berth needs to be subjected to durability and safety test before the whole vehicle is produced in quantity.
At present, tests for commercial vehicle couchettes are mainly aimed at comfort, i.e. whether the overall position of the couchette is suitable. There is no corresponding test platform and test method to test the durability and safety of the sleeper to verify the reliability of the backrest.
SUMMERY OF THE UTILITY MODEL
Therefore, the application provides a dynamic test platform for the backrest, which can be used for carrying out durability and safety tests on the backrest of a commercial vehicle sleeper and testing the reliability of the backrest.
Some embodiments of the present application provide a dynamic test platform for testing the reliability of a backrest of a commercial vehicle sleeper, comprising: the frame is used for fixing a bed board of a commercial vehicle sleeper; the rotary pressing device is rotatably arranged on the rack and is used for driving the backrest to rotate around the first axis and pressing the backrest downwards; the rotary driving device is arranged on the rack and used for driving the rotary pressing device to rotate around a first axis, so that the rotary pressing device is provided with a plurality of preset testing angle positions, and the preset testing angle positions correspond to preset adjusting angle positions of the backrest one to one; under the effect of rotation drive arrangement, rotate the push-down device and drive the back and rotate to one of a plurality of test angle positions of predetermineeing, rotate the push-down device and can be fixed in predetermine test angle position and push down the back in the front of back to the intensity of test back.
Through back dynamic test platform, can carry out durability and safety test to the back of sleeping berth, can test the reliability of back.
In addition, the dynamic test platform for the backrest according to the embodiment of the application has the following additional technical features:
according to some embodiments of the application, the rotary hold-down device comprises: the inner end of the rotating bracket is rotatably arranged on the rack around a first axis, and the outer end of the rotating bracket is provided with a guide rod; the length direction of the guide rod is parallel to the first axis, and the guide rod is used for being connected with a pull ring of a backrest; and the pressing mechanism is arranged in the middle of the rotating bracket and used for pressing the backrest downwards. The rotary pressing device in the form can drive the backrest to rotate to the preset angle adjusting position, and presses the front surface of the backrest at the corresponding preset testing angle position, and the rotary pressing device is simple in structure.
According to some embodiments of the application, the rotating bracket comprises: two rotating plates arranged at intervals in the extending direction of the first axis; the two ends of the middle plate are respectively connected with the two rotating plates, and the pressing mechanism is installed on the middle plate. The rotary support in the form is high in strength, simple in structure and light in weight.
According to some embodiments of the application, the pressing mechanism comprises: the downward pressing driving piece is arranged at the lower side of the rotating bracket; and the pressing plate is arranged at the execution end of the downward pressing driving piece and used for pressing the backrest downward. The pressing mechanism is simple in structure and easy to realize.
According to some embodiments of the present application, the backrest dynamic test platform further comprises: the rotary guide frame is arranged on the rack, a rotary guide groove corresponding to the track of the guide rod is formed in the rotary guide frame, and the guide rod penetrates through the rotary guide groove. When the rotating bracket drives the guide rod to rotate around the first axis, the motion track of the guide rod is a section of circular arc, the rotating guide groove corresponds to the motion track of the guide rod, the guide rod can be guided to move along the track in an auxiliary mode, the guide rod is prevented from deviating or shaking, and the motion stability of the guide rod is improved.
According to some embodiments of the application, the rotary guide frames are provided with two rotary guide frames which are arranged at intervals along the extending direction of the first axis, and two ends of the guide rod are respectively arranged in the rotary guide grooves of the rotary guide frames on the same side of the guide rod in a penetrating mode. The guide rod can be well limited to rotate around the first axis by guiding the motion tracks of the two ends of the guide rod.
According to some embodiments of the application, a backrest connecting piece is arranged on the guide rod and used for hooking a pull ring of the backrest, so that the guide rod structure can be simplified.
According to some embodiments of the application, the rotational drive comprises: the rotation driving mechanism can drive the rotation pressing device to rotate; and the angle locking mechanism can lock the rotating pressing device when the rotating pressing device stays at the preset testing angle position. The rotating support can be locked through the angle locking mechanism, the pressing stroke direction of the pressing mechanism can be fixed to be right opposite to the front face of the backrest, and the motor can be prevented from being damaged.
According to some embodiments of the application, the angle locking mechanism is a magnetic particle clutch, is low in cost and is easy to purchase.
According to some embodiments of the application, the rotational drive mechanism comprises: the motor and the encoder are respectively arranged at two ends of the rotating pressing device along a first axis. This kind of arrangement form is not only reasonable, and can realize that the accurate arrival of runing rest presets test angle position.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a dynamic test platform for a backrest according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a dynamic test platform for a backrest (including a commercial vehicle sleeper) provided in an embodiment of the present application;
fig. 3 is a schematic structural view of a rotary pressing device and a rotary guide frame in a dynamic test platform for a backrest according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a commercial vehicle sleeper applied to the dynamic backrest testing platform provided in the embodiment of the present application.
Icon: 100-dynamic test platform of backrest; 110-a rack; 111-mounting holes; 112-a hollow;
120-rotating the support; 121-a first rotation plate; 1211-rotating plate first end; 1212-rotating the plate second end; 1213-first drive shaft; 122-a second rotating plate; 1221-a second drive shaft; 123-a middle plate; 125-inner end of the bracket; 126-outer end of the bracket; 130-a guide bar; 131-a guide bar first end; 132-a guide rod second end; 133-backrest connection; 140-a hold down mechanism; 141-pressing down the driving member; 142-a platen; 150-a rotational drive; 151-a rotational drive mechanism; 1511-electric motor; 1512-a reducer; 1513-encoder; 1514-mounting plate; 152-an angle locking mechanism; 160-rotating guide frame; 161-rotary guide groove; 170-rotating the hold-down device; 200-commercial vehicle sleeping berth; 210-bed plate; 220-backrest; 221-front of back; 222-a pull ring; 223-hinge means.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
Referring to fig. 4, in the present application, a commercial vehicle sleeper 200 includes a bed plate 210 and a backrest 220, the backrest 220 is rotatably mounted to the bed plate 210 by a hinge device 223, and a backrest front 221 is used for mounting a sponge.
Under the action of the hinge device 223, the backrest 220 can rotate about the first axis to have a plurality of preset adjustment angle positions. For example, the backrest 220 has a rotation angle in the range of 0-90 ° with seven preset adjustment angle positions α 1, α 2, α 3, α 4, α 5, α 6, and α 7, respectively.
When the user lies on the commercial vehicle sleeper 200, the back rests on the backrest 220, and the backrest 220 can be adjusted to be located at one of a plurality of preset angle adjusting positions through the knob, so that the user has better comfort.
In order to verify whether the backrest 220 has enough strength to support the weight applied to the backrest 220 by the user when the user leans against the backrest 220, the embodiment of the application provides a dynamic backrest testing platform 100 capable of simulating the acting force applied to the backrest 220 by the user when the user leans against the backrest 220 for each preset adjustment angle position to test whether the backrest 220 can reliably support the weight applied to the backrest 220 by the user at each preset adjustment angle position.
In other embodiments, the dynamic test platform 100 may also be applied to the reliability of the backrest of a seat.
Referring to fig. 1 and 2, the dynamic backrest testing platform 100 in the embodiment of the present disclosure includes a frame 110, a rotary pressing device 170, and a rotary driving device 150. The frame 110 is used for fixing a bed board 210 of a commercial vehicle sleeper 200, and the rotary pressing device 170 is rotatably mounted on the frame 110 and used for driving the backrest 220 to rotate around a first axis and pressing the backrest 220. The rotation driving device 150 is mounted on the frame 110 and configured to drive the rotation pressing device 170 to rotate around the first axis, so that the rotation pressing device 170 has a plurality of preset test angle positions, and the preset test angle positions correspond to the preset adjustment angle positions of the backrest 220 one to one.
Under the action of the rotation driving device 150, the rotation pressing device 170 drives the backrest 220 to rotate to one of a plurality of preset testing angle positions, and the rotation pressing device 170 can be fixed at the preset testing angle position and press the backrest 220 on the backrest front surface 221 to test the strength of the backrest 220.
Through the dynamic test platform 100 for the backrest, durability and safety tests can be performed on the backrest 220, and the reliability of the backrest 220 can be tested.
Referring to fig. 1 and 2, the following description is provided for the structure and interconnection of the components of the dynamic backrest platform 100 according to the embodiment of the present application.
The frame 110 is used for fixing a bed plate 210 of the commercial vehicle sleeper 200 and installing the rotary hold-down device 170 and the rotary driving device 150.
For convenience of description, an extending direction of the bed plate 210 is defined as a first direction, and a direction parallel to the first axis is defined as a second direction.
In some embodiments of the present application, a plurality of mounting holes 111 are formed in the frame 110, the mounting holes correspond to mounting holes of the bed plate 210 when the bed plate 210 is assembled in the whole vehicle, and the bed plate 210 can be fixed to the frame 110 by matching with a threaded member.
In other embodiments, a plurality of pressing cylinders may be disposed on the frame 110, and the plurality of pressing cylinders are disposed at intervals along the circumferential direction of the bed plate 210, and the bed plate 210 is fixed to the frame 110 by the plurality of pressing cylinders.
In some embodiments of the present application, the frame 110 is provided with a cutout 112 to facilitate installation of the bed deck 210 of the commercial vehicle sleeper 200.
The rotary pressing device 170 is used to rotate the backrest 220 about the first axis and press down the backrest 220. The backrest 220 can be driven to rotate to a predetermined angle-adjusting position by rotating the pressing device 170, and the backrest front 221 is pressed at a predetermined angle-testing position corresponding to the predetermined angle-adjusting position, and the structure is simple.
Referring to fig. 3, in some embodiments of the present application, the rotating pressing device 170 includes a rotating bracket 120, a guide rod 130, and a pressing mechanism 140.
The rotating bracket 120 includes an inner bracket end 125 and an outer bracket end 126, the inner bracket end 125 is rotatably mounted to the frame 110 about a first axis, and the outer bracket end 126 is mounted with a guide rod 130.
The rotating bracket 120 includes a first rotating plate 121, a second rotating plate 122, and an intermediate plate 123. The first rotating plate 121 and the second rotating plate 122 are arranged at intervals in the second direction. The intermediate plate 123 has one end connected to the first rotating plate 121 and the other end connected to the second rotating plate 122. This form of the rotating bracket 120 is not only high in strength, simple in construction, and light in weight.
The first rotating plate 121 and the second rotating plate 122 have the same structure, and taking the first rotating plate 121 as an example, the first rotating plate 121 includes a first rotating plate end 1211 and a second rotating plate end 1212, a first transmission shaft 1213 is connected to the outer side of the first rotating plate end 1211, and the second rotating plate end 1212 is provided with a through hole for installing one end of the guide rod 130.
The first transmission shaft 1213 is rotatably mounted to the frame 110, for example, the frame 110 is provided with a rotary bearing housing (not shown), and the first transmission shaft 1213 is rotatably supported by the rotary bearing housing.
Similarly, a second transmission shaft 1221 is connected to an outer side of the second rotating plate 122 and is also rotatably mounted to the frame 110 through a rotating bearing seat, and the first transmission shaft 1213 and the second transmission shaft 1221 are coaxially disposed and form the inner end 125 of the bracket. The rotating plate second end 1212 of the first rotating plate 121 and the rotating plate second end of the second rotating plate 122 together form the bracket outer end 126.
In some embodiments of the present application, first drive shaft 1213 and second drive shaft 1221 act as components of a torque input.
In another embodiment, a single long shaft extending along the second axis may be used, and both ends of the long shaft penetrate the first rotating plate 121 and the second rotating plate 122, respectively, to serve as members for torque input.
The intermediate plate 123 may be provided in a plurality of pieces, and the plurality of intermediate plates 123 are arranged at intervals in a length direction of the first rotating plate 121 to reinforce the strength of the rotating bracket 120.
In some embodiments of the present application, the number of the middle plates 123 is two, and the pressing mechanism 140 is mounted on one of the middle plates 123.
In other embodiments, the number of the middle plates 123 may be one to simplify the structure of the rotating bracket 120, or the number of the middle plates 123 may be three or four to reinforce the strength of the rotating bracket 120 on the basis of reducing the weight of the rotating bracket 120.
The guide bar 130 is adapted to be coupled to a pull ring 222 of the backrest 220 to rotate the backrest 220 about a first axis.
For example, the guide bar 130 is provided with a back connection part 133, and the back connection part 133 is used to hook the pull ring 222.
The backrest connection member 133 is installed on the guide bar 130 and disposed at a position corresponding to the shortest distance from the tab 222 to the guide bar 130. When the rotating bracket 120 rotates the guide bar 130 about the first axis, the backrest connecting member 133 pulls the pull ring 222, thereby adjusting the preset adjustment angle position of the backrest 220.
Further, the position of the backrest connector 133 along the axial direction of the guide bar 130 is adjustable to accommodate the position of the pull ring 222 of different models of commercial vehicle couchettes 200.
The guide rods 130 are arranged in parallel along the second direction, the guide rods 130 have a first end 131 and a second end 132 at two ends, respectively, the first end 131 is inserted into the through hole of the second end 1212 of the first rotating plate 121, and the second end 132 is inserted into the corresponding through hole of the second rotating plate 122.
The pressing mechanism 140 is mounted to the intermediate plate 123, and is disposed on a lower side of the rotating bracket 120, for pressing down the backrest 220.
In some embodiments of the present application, the hold-down mechanism 140 includes a hold-down drive 141 and a platen 142. The push-down driving member 141 is installed at a lower side of the rotating bracket 120, and the pressing plate 142 is installed at an actuating end of the push-down driving member 141 for pushing down the backrest 220.
The push-down driving member 141 is a linear cylinder or an electric push rod, and the stroke direction is a normal direction of the rotating bracket 120.
When the rotary bracket 120 rotates to different preset testing angle positions, the stroke direction of the pressing driving member 141 changes along with the rotation, so as to ensure that the backrest front 221 is always pressed vertically.
In some embodiments of the present application, the platen 142 is square shaped to increase the contact area with the front side 221 of the backrest.
In other embodiments, the pressure plate 142 may be further configured to have a circular or oval shape to simulate the actual force-bearing area and force-bearing portion of a human body leaning on the backrest 220.
Referring to fig. 3, in some embodiments of the present application, the dynamic back test platform 100 further includes a rotating guide frame 160. The rotary guide frame 160 is installed on the frame 110, the rotary guide frame 160 is provided with a rotary guide groove 161 corresponding to the track of the guide bar 130, and the guide bar 130 is inserted into the rotary guide groove 161.
When the rotating bracket 120 drives the guide rod 130 to rotate around the first axis, the motion track of the guide rod 130 is a section of arc, and the rotating guide slot 161 corresponds to the motion track of the guide rod 130, so that the guide rod 130 can be guided to move along the track, the guide rod 130 is prevented from deviating or shaking, and the motion stability of the guide rod 130 is improved.
Further, two rotary guide frames 160 are provided, two rotary guide frames 160 are arranged at intervals along the first direction, the first ends 131 of the guide rods are inserted into the rotary guide slots 161 of the rotary guide frames 160 on the same side, and the second ends 132 of the guide rods are inserted into the rotary guide slots 161 of the rotary guide frames 160 on the same side.
By guiding the movement traces of the two ends of the guide bar 130, the rotation of the guide bar 130 around the first axis can be well defined.
Referring to fig. 1 and 2, the rotation driving device 150 is configured to drive the rotating bracket 120 to rotate to a predetermined testing angle position around the first axis, and fix the rotating bracket 120 at the predetermined testing angle position.
In some embodiments of the present application, the rotational drive 150 includes a rotational drive mechanism 151 and an angular locking mechanism 152.
The rotation driving mechanism 151 is mounted to the frame 110 through a mounting plate 1514 and is in transmission connection with a first transmission shaft 1213, and the rotation driving mechanism 151 can drive the rotating bracket 120 to rotate around a first axis.
In some embodiments of the present application, the rotational driving mechanism 151 includes a motor 1511 and an encoder 1513, and the motor 1511 and the encoder 1513 are respectively disposed at both ends of the rotational hold-down device 170 in the second direction. The motor 1511 is connected to the first transmission shaft 1213 through the speed reducer 1512 to drive the rotation bracket 120 to rotate about the first axis. Encoder 1513 is mounted on second transmission shaft 1221 and is used to detect the rotation angle of rotating bracket 120, and cooperates with the PLC to determine whether rotating bracket 120 reaches a predetermined test angle position.
The angle locking mechanism 152 is mounted on the mounting plate 1514 and located between the rotation driving mechanism 151 and the first rotation plate 121, and when the rotation bracket 120 stays at a predetermined testing angle position, the angle locking mechanism 152 can lock the rotation bracket 120 to fix the rotation hold-down device 170 at the predetermined testing angle position. The angle locking mechanism 152 can lock the rotary bracket 120 when the pressing mechanism 140 is operated, so that the pressing stroke direction of the pressing mechanism 140 is fixed to be opposite to the backrest front 221, and the damage to the motor can be avoided.
In some embodiments of the present application, the angle locking mechanism 152 is a magnetic particle clutch. A magnetic particle clutch is sleeved on the first transmission shaft 1213 and when energized locks the first transmission shaft 1213 and thus the rotating bracket 120.
In other embodiments, the angle locking mechanism 152 may be other types of mechanisms capable of locking the first transmission shaft 1213.
In some embodiments of the present application, the rotary hold-down device 170 has seven preset test angle positions β 1, β 2, β 3, β 4, β 5, β 6, and β 7, respectively, α 1 corresponds to β 1, and similarly, the other sets of preset adjustment angle positions and preset test angle positions correspond to one another.
The following illustrates the test method of the dynamic test platform 100 for a backrest:
placing the bedplate 210 on the frame 110 in a first direction with the backrest 220 on the side of the frame 110 near the rotary hold-down 170 and fastening the bedplate 210 to the frame 110 using screws;
connecting the pull ring 222 with the backrest connector 133;
the backrest 220 is positioned at alpha 1, and the rotating bracket 120 is positioned at beta 1;
the angle locking mechanism 152 is in a power-off state, the pressing mechanism 140 presses down the front surface 221 of the backrest through the pressing plate 142, the applied acting force is 1500N, the pressing continues for 2S, and the primary reliability test of beta 1 is completed;
the motor 1511 drives the rotating bracket 120 to rotate, the encoder 1513 detects that the rotating bracket 120 reaches beta 2 and sends a beta 2 in-place signal to the PLC, and correspondingly, the backrest 220 reaches alpha 2;
the motor 1511 responds to the beta 2 in-place signal and stops running;
the angle locking mechanism 152 responds to the beta 2 in-place signal and is powered on, and the rotating bracket 120 is locked at the beta 2 position;
the pressing driving element 141 responds to the beta 2 in-place signal, drives the pressing plate 142 to press the front surface 221 of the backrest, applies an acting force of 1500N, and presses for 2 seconds continuously to complete a reliability test of the beta 2;
completing a cycle reliability test of beta 3, beta 4, beta 5, beta 6 and beta 7 in the same way as the beta 2;
and (3) carrying out reliability test on the beta 1-beta 7 for 1 ten thousand times in a circulating mode, checking the hinge device 223 and the backrest 220, and judging that the backrest of the commercial vehicle sleeper 200 passes the durability and safety test if the backrest adjusting function of the commercial vehicle sleeper 200 is normal and the hinge device 223 and the backrest 220 are not deformed or damaged obviously.
The dynamic test platform 100 is not only simple in structure, but also capable of pressing down the front 221 of the backrest at different predetermined test angle positions. By using the dynamic backrest test platform 100 in the embodiment of the application, the backrest 220 can be dynamically tested to objectively evaluate whether the backrest 220 of the commercial vehicle sleeper 200 has enough strength, so that a test report which can more truly reflect the reliability of the backrest 220 of the commercial vehicle sleeper 200 is provided for a whole vehicle manufacturer.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A dynamic test platform for testing the reliability of a commercial vehicle sleeper backrest, comprising:
the frame is used for fixing a bed board of a commercial vehicle sleeper;
the rotary pressing device is rotatably arranged on the rack and is used for driving the backrest to rotate around the first axis and pressing the backrest downwards;
the rotary driving device is arranged on the rack and used for driving the rotary pressing device to rotate around a first axis, so that the rotary pressing device is provided with a plurality of preset testing angle positions, and the preset testing angle positions correspond to preset adjusting angle positions of the backrest one to one;
under the effect of rotation drive arrangement, rotate the push-down device and drive the back and rotate to one of a plurality of test angle positions of predetermineeing, rotate the push-down device and can be fixed in predetermine test angle position and push down the back in the front of back to the intensity of test back.
2. The dynamic back rest test platform of claim 1, wherein the rotational hold-down device comprises:
the inner end of the rotating bracket is rotatably arranged on the rack around a first axis, and the outer end of the rotating bracket is provided with a guide rod;
the length direction of the guide rod is parallel to the first axis, and the guide rod is used for being connected with a pull ring of a backrest;
and the pressing mechanism is arranged in the middle of the rotating bracket and used for pressing the backrest downwards.
3. The dynamic back rest test platform of claim 2, wherein the swivel bracket comprises:
two rotating plates arranged at intervals in the extending direction of the first axis;
the two ends of the middle plate are respectively connected with the two rotating plates, and the pressing mechanism is installed on the middle plate.
4. The dynamic back rest test platform of claim 2, wherein the hold-down mechanism comprises:
the downward pressing driving piece is arranged at the lower side of the rotating bracket;
and the pressing plate is arranged at the execution end of the downward pressing driving piece and used for pressing the backrest downward.
5. The dynamic back test platform of claim 2, further comprising:
the rotary guide frame is arranged on the rack, a rotary guide groove corresponding to the track of the guide rod is formed in the rotary guide frame, and the guide rod penetrates through the rotary guide groove.
6. The dynamic backrest test platform according to claim 5, wherein two rotary guide frames are provided, the two rotary guide frames are arranged at intervals along the extending direction of the first axis, and two ends of the guide rod are respectively inserted into the rotary guide grooves of the rotary guide frames on the same side of the guide rod.
7. The dynamic backrest test platform according to claim 2, wherein the guide bar is provided with a backrest connecting part, and the backrest connecting part is used for hooking a pull ring of the backrest.
8. The dynamic back rest test platform of claim 1, wherein the rotational drive comprises:
the rotation driving mechanism can drive the rotation pressing device to rotate;
and the angle locking mechanism can lock the rotating pressing device when the rotating pressing device stays at the preset testing angle position.
9. The dynamic back rest test platform of claim 8, wherein the angle locking mechanism is a magnetic particle clutch.
10. The dynamic back rest test platform of claim 8, wherein the rotational drive mechanism comprises:
the motor and the encoder are respectively arranged at two ends of the rotating pressing device along a first axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049585.XU CN213091183U (en) | 2020-09-17 | 2020-09-17 | Dynamic test platform for backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022049585.XU CN213091183U (en) | 2020-09-17 | 2020-09-17 | Dynamic test platform for backrest |
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| CN213091183U true CN213091183U (en) | 2021-04-30 |
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| CN202022049585.XU Active CN213091183U (en) | 2020-09-17 | 2020-09-17 | Dynamic test platform for backrest |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358385A (en) * | 2021-05-13 | 2021-09-07 | 杭州电子科技大学 | Fatigue test system and method for seat multi-linkage mechanism |
| CN116067795A (en) * | 2023-03-07 | 2023-05-05 | 达昌技术发展有限公司 | Shell compression resistance testing device of security monitoring facility |
-
2020
- 2020-09-17 CN CN202022049585.XU patent/CN213091183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113358385A (en) * | 2021-05-13 | 2021-09-07 | 杭州电子科技大学 | Fatigue test system and method for seat multi-linkage mechanism |
| CN116067795A (en) * | 2023-03-07 | 2023-05-05 | 达昌技术发展有限公司 | Shell compression resistance testing device of security monitoring facility |
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