CN218865432U

CN218865432U - Backrest vibration testing device

Info

Publication number: CN218865432U
Application number: CN202223243219.3U
Authority: CN
Inventors: 沈玉竹; 张国华; 董伟轻
Original assignee: Shanghai Kongbo Automation Technology Co ltd
Current assignee: Shanghai Kongbo Automation Technology Co ltd
Priority date: 2022-12-03
Filing date: 2022-12-03
Publication date: 2023-04-14
Anticipated expiration: 2032-12-03

Abstract

The application discloses back vibration test device relates to car auxiliary assembly detection device field, and it is including the testboard that is used for placing the back, the testboard up end is provided with surveys the test panel, it is fixed with test cylinder to survey the test panel up end, test cylinder piston rod department is fixed with the test and presss from both sides, the test presss from both sides the internal fixation and has a test section of thick bamboo, the test section of thick bamboo internal fixation has acceleration sensor, the test section of thick bamboo end fixing has magnet, be provided with on the testboard and be used for absorbing damper assembly, be provided with the inclination detecting element who is used for detecting the back inclination on the testboard. This application has the effect that promotes back vibration measurement accuracy.

Description

Backrest vibration testing device

Technical Field

The application relates to the field of automobile accessory equipment detection devices, in particular to a backrest vibration testing device.

Background

The patent with publication number CN202066587U discloses a backrest vibration testing device, including a fixed baseplate, be provided with fixing device, heavy burden device and vibration induction system on the base, its characterized in that: the base is fixed with two parallel baffles, two cylinders are respectively perpendicular to the baffles and fixed on the base, one end of a traction rope is connected with the load block, the other end of the traction rope bypasses a support frame and then is connected with the backrest, and a vibration sensing device is provided with an inserted bar which can be inserted into a hole on the backrest. The utility model discloses a back vibration testing arrangement, structural design is reasonable, novel, and easy operation has improved work efficiency and product quality.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology, and the displacement of the backrest along the axis direction of the rotating shaft of the backrest when the backrest vibrates cannot be accurately measured in the prior art when the backrest is tested, so that the measurement result is inaccurate.

SUMMERY OF THE UTILITY MODEL

In order to promote back vibration measurement accuracy, this application provides a back vibration testing arrangement.

The application provides a backrest vibration testing arrangement adopts following technical scheme:

the utility model provides a backrest vibration test device, is including the testboard that is used for placing the backrest, the testboard up end is provided with surveys the test panel, it is fixed with test cylinder to survey the test panel up end, test cylinder piston rod department is fixed with the test clamp, the test clamp internal fixation has a test section of thick bamboo, the test section of thick bamboo internal fixation has acceleration sensor, the test section of thick bamboo end fixing has the magnet that is used for adsorbing at back axial side position, be provided with on the testboard and be used for absorbing damper assembly, be provided with the inclination detecting element who is used for detecting the back inclination on the testboard.

By adopting the technical scheme, in the rotation process of the backrest, the acceleration sensor detects the sliding distance along the axis direction of the self rotating shaft in the rotation process of the backrest, so that whether the vibration range of the backrest is qualified or not is detected.

Optionally, the inclination detecting assembly comprises a supporting block detachably connected with the top of the backrest, an inclination sensor is fixed on the supporting block, a connecting block is rotatably connected to the side wall of the supporting block, and a counterweight part used for being connected with the connecting block is arranged on the test board.

By adopting the technical scheme, the inclination angle sensor is matched with the acceleration sensor, and the counterweight part simulates the condition that a person uses a backrest, so that the accuracy of detection is enhanced.

Optionally, the counterweight component includes a supporting plate fixed on the upper end face of the test board, the top of the supporting plate is rotatably connected with a rotating wheel, a plurality of counterweight blocks are placed on the test board, a counterweight disc used for penetrating the counterweight blocks is placed on the test board, and a connecting rope is fixed between the counterweight disc and the connecting block.

By adopting the technical scheme, the rope is fixedly connected between the weight plate and the connecting block, and the backrest rotates to drive the supporting block to move, so that the counterweight block on the weight plate is driven to slide, and the condition that a human uses the backrest is conveniently simulated.

Optionally, the terminal surface that the back was kept away from to the backup pad is fixed with the slide rail, sliding connection has the lifting piece on the slide rail, the balancing weight with the balancing weight dish is all placed on the lifting piece, the backup pad top is fixed with the lifting cylinder, lifting cylinder piston rod is fixed in the lifting piece up end.

Through adopting above-mentioned technical scheme, the lifting cylinder drives the motion of lifting piece to drive the balancing weight and rise, when the balancing weight does not use, the lifting cylinder with the balancing weight lifting, make to connect the rope and be lax state, increased the life who connects the rope.

Optionally, the damping assembly comprises an air spring fixed on the lower end face of the test board, and a damping anchor is fixed at the bottom of the test board.

Through adopting above-mentioned technical scheme, air spring and shock attenuation lower margin cooperation have reduced the testboard and have received external vibration's influence, have strengthened the preparation degree of test.

Optionally, the test cartridge is hexagonal prism shaped.

By adopting the technical scheme, the hexagonal prism-shaped test cartridge reduces the possibility of position deviation of the test cartridge in the test clamp.

Optionally, a protective cover used for protecting the inclination angle sensor is fixed on the supporting block, a sliding rod is fixed on the side wall of the test board, a hoisting plate is connected to the sliding rod in a sliding mode, and a hoisting ring used for penetrating the hoisting plate is fixed on the side wall of the protective cover.

Through adopting above-mentioned technical scheme, the cooperation of hoisting plate and hoisting ring is convenient for place inclination sensor when inclination sensor does not use, and inclination sensor horizontal direction's position is adjustable simultaneously, has reduced inclination sensor and has hindered the possibility that the back was placed.

Optionally, an operating handle convenient for moving the tilt sensor is fixed at the top of the protective cover.

By adopting the technical scheme, the operation handle is convenient for controlling the movement of the tilt angle sensor.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the test plate is provided with the test cylinder, and whether the vibration range of the backrest is qualified or not is detected by detecting the displacement of the backrest in the rotation process along the axial direction of the rotating shaft, so that the test is more accurate;

2. the balancing weight simulates the condition that a person uses the backrest, and the accuracy of the test is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of a main body according to an embodiment of the present application.

Fig. 2 is a schematic view of a fixing manner of the support plate.

Fig. 3 is an enlarged view of a portion a of fig. 1.

Fig. 4 is a schematic view of a tilt sensor mounting structure.

Description of reference numerals:

1. a test bench; 2. a test board; 3. testing the cylinder; 4. a test clip; 5. a test cartridge; 7. a magnet; 8. a support block; 9. a tilt sensor; 10. connecting blocks; 11. a support plate; 12. a rotating wheel; 13. a counterweight block; 14. a weight plate; 16. a slide rail; 17. lifting the block; 18. lifting the cylinder; 19. an air spring; 20. damping feet; 21. a protective cover; 22. a slide bar; 23. hoisting the plate; 24. hoisting a ring; 25. an operating handle.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses back vibration testing arrangement. Referring to fig. 1, 2 and 3, a backrest vibration testing device includes a testing platform 1 placed on a bottom surface, the testing platform 1 is used for placing and detecting a backrest, a testing plate 2 is arranged on an upper end surface of the testing platform 1, a testing cylinder 3 is fixed on the upper end surface of the testing plate 2 through a bolt, a testing clamp 4 is fixed on a piston rod of the testing cylinder 3 through a bolt, the testing cylinder 3 is used for driving the testing clamp 4 to slide in a horizontal direction, a testing cylinder 5 is arranged on the testing platform 1, the testing cylinder 5 is clamped by the testing clamp 4, an acceleration sensor is fixed on an inner side wall of the testing cylinder 5 through a bolt, the acceleration sensor is used for detecting the axial displacement of the backrest along a rotating process of the backrest, whether the vibration quantity of the backrest is in a qualified range is calculated through a computer, a magnet 7 is bonded on an end surface of the testing cylinder 5, the magnet 7 is used for being adsorbed to a side wall of the backrest, so as to connect the testing cylinder 5 with the side wall of the backrest, the outer side wall of the testing cylinder 5 is hexagonal prism, the shape of the testing cylinder 4 is the testing cylinder 5, the outer side wall of the testing clamp 4 is the same as the shape of the testing cylinder 5, and the hexagonal prism, the testing cylinder 5 reduces the possibility of the testing cylinder 5 that the testing clamp 4 is inaccurate testing result.

Referring to fig. 1 and 4, testboard 1 is last to be provided with inclination determine module, inclination determine module is used for detecting the inclination of back, inclination determine module includes supporting shoe 8, supporting shoe 8 can be dismantled to connect with the back top, terminal surface integrated into one piece has the joint pole that is used for wearing to establish at the back top under the backup pad 11, there is inclination sensor 9 supporting shoe 8 up end through the bolt fastening, supporting shoe 8 lateral wall is connected with connecting block 10 through the pivot rotation.

Referring to fig. 1 and 2, be provided with the counter weight part on the testboard 1, the counter weight part is used for being connected with connecting block 10, thereby the dummy leans on the back, the counter weight part includes backup pad 11, backup pad 11 is through the bolt fastening 1 up end of testboard, backup pad 11 is vertical setting, backup pad 11 top is rotated through the pivot and is connected with swivel wheel 12, a plurality of balancing weights 13 have been placed on the testboard 1, place bench and placed balancing disk 14, balancing disk 14 is used for placing a plurality of balancing

weights

13, 14 up end integrated into one piece of balancing disk has the balancing weight pole, the balancing weight pole is vertical setting and the balancing weight pole wears to establish in a plurality of balancing weights 13, reduce the possibility of balancing weight 13 offset, be fixed with between disk 14 and the connecting block 10 and be connected the rope, it is at the balancing weight pole tip to connect rope one end system, another end system is on connecting block 10, and connect rope and trade set swivel wheel 12, be convenient for the supporting shoe 8 along with the back motion when driving balancing weight 13 and slide in vertical direction.

Referring to fig. 1 and 2, the terminal surface that the back was kept away from to backup pad 11 has slide rail 16 through the bolt fastening, slide rail 16 is vertical setting, sliding connection has lifting block 17 on slide rail 16, balancing weight 13 all places at lifting block 17 up end with counterweight disk 14, there is lifting cylinder 18 backup pad 11 top through the bolt fastening, 18 piston rod tip of lifting cylinder is through the bolt fastening in lifting block 17 up end, lifting cylinder 18 is used for lifting balancing weight 13 and counterweight disk 14, make when not using balancing weight 13 connect the rope and be the lax state, the life who connects the rope has been increased.

Referring to fig. 1 and 2, be provided with damping assembly on testboard 1, damping assembly is used for testing 2 shock absorbers of board, reduce the influence of external vibration to test structure, damping assembly includes a plurality of air spring 19, air spring 19 one end bonds in testboard 1 bottom, the air spring 19 other end bonds terminal surface under testboard 1, testboard 1 bottom is fixed with shock attenuation lower margin 20 through the bolt, shock attenuation lower margin 20 and air spring 19 cooperation, thereby reduce testboard 1 and receive external vibration's influence and lead to the possibility that the test result is influenced.

Referring to fig. 1 and 4, there is a protection cover 21 on the supporting block 8 through the bolt fastening, the protection cover 21 is used for protecting the inclination sensor 9, there is a slide bar 22 on the inside wall of the test board 1 through the bolt fastening, the slide bar 22 is the level setting, sliding connection has a hoisting plate 23 on the slide bar 22, the side wall of the protection cover 21 is provided with a hoisting ring 24 through the bolt fastening, the hoisting ring 24 is used for wearing to establish the hoisting plate 23, thereby the hoisting plate 23 is worn to establish in the hoisting ring 24 with the supporting block 8 fixed, be convenient for place the inclination sensor 9 when not using the inclination sensor 9, there is an operating handle 25 at the top of the protection cover 21 through the bolt fastening, the operating handle 25 is convenient for control the movement of the inclination sensor 9.

The implementation principle of the backrest vibration testing device in the embodiment of the application is as follows: fix the back on testing board 2, test cylinder 3 promotes test section of thick bamboo 5 and makes test section of thick bamboo 5 laminate back lateral wall, is connected inclination sensor 9 and back, and balancing weight 13 and supporting shoe 8 cooperate, the condition that the anthropomorphic dummy used the back of being convenient for, and inclination sensor 9 cooperates with acceleration sensor 6 to whether the vibration range of test back is in qualified scope.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a backrest vibration testing device, includes test bench (1) that is used for placing the back, its characterized in that: the test bench is characterized in that a test board (2) is arranged on the upper end face of the test bench (1), a test cylinder (3) is fixed on the upper end face of the test board (2), a test clamp (4) is fixed at a piston rod of the test cylinder (3), a test barrel (5) is fixed in the test clamp (4), an acceleration sensor is fixed in the test barrel (5), a magnet (7) which is adsorbed on the axial side face of the backrest is fixed at the end of the test barrel (5), a damping component for damping is arranged on the test bench (1), and an inclination angle detection component for detecting the inclination angle of the backrest is arranged on the test bench (1).

2. The backrest vibration test apparatus as set forth in claim 1, wherein: the inclination angle detection assembly comprises a supporting block (8) detachably connected with the top of the backrest, an inclination angle sensor (9) is fixed on the supporting block (8), a connecting block (10) is rotatably connected to the side wall of the supporting block, and a counterweight component used for being connected with the connecting block (10) is arranged on the test board (1).

3. The backrest vibration test apparatus as set forth in claim 2, wherein: the counterweight component comprises a supporting plate (11) fixed on the upper end face of the test bench (1), the top of the supporting plate (11) is rotatably connected with a rotating wheel (12), a plurality of counterweight blocks (13) are placed on the test bench (1), a counterweight disc (14) used for penetrating the counterweight blocks (13) is placed on the test bench (1), and a connecting rope is fixed between the counterweight disc (14) and the connecting block (10).

4. A backrest vibration testing apparatus according to claim 3, wherein: the terminal surface that the back was kept away from in backup pad (11) is fixed with slide rail (16), sliding connection has lifting piece (17) on slide rail (16), balancing weight (13) with weight plate (14) are all placed on lifting piece (17), backup pad (11) top is fixed with lifting cylinder (18), lifting cylinder (18) piston rod is fixed in lifting piece (17) up end.

5. The backrest vibration test apparatus as set forth in claim 4, wherein: the damping assembly comprises an air spring (19) fixed on the lower end face of the test board (2), and damping feet (20) are fixed at the bottom of the test board (1).

6. The backrest vibration test apparatus as set forth in claim 5, wherein: the testing cylinder (5) is hexagonal prism-shaped.

7. The backrest vibration test apparatus as set forth in claim 6, wherein: be fixed with safety cover (21) that are used for protecting inclination sensor (9) on supporting shoe (8), testboard (1) lateral wall is fixed with slide bar (22), sliding connection has hoisting plate (23) on slide bar (22), safety cover (21) lateral wall is fixed with hoisting ring (24) that are used for wearing to establish hoisting plate (23).

8. The backrest vibration test apparatus as set forth in claim 7, wherein: and an operating handle (25) convenient for moving the inclination angle sensor (9) is fixed at the top of the protective cover (21).