Bidirectional durability test bench for seat shock absorber

Abstract

The utility model belongs to the field of service life detection equipment for internal accessories of automobile seats, and particularly relates to a bidirectional durability test bench for a seat shock absorber, which comprises a supporting plate, a supporting frame is fixedly connected to the top of the supporting plate, a vertical vibration mechanism is arranged on the inner side of the supporting frame, and a transverse vibration mechanism is arranged on the top of the supporting frame. The vertical vibration mechanism and the transverse vibration mechanism are arranged to complete two-way detection of durability of the seat shock absorber, an electric vibrator and a hydraulic driving system are replaced by adopting a motor-driven connecting rod system, and the motor-driven connecting rod system can accurately control the rotating speed and torque of a motor according to actual requirements, so that the durability of the seat shock absorber is detected. Therefore, accurate control over movement and vibration of the vibration table is achieved, the energy efficiency of the motor-driven connecting rod system is higher, the motor can operate under the high efficiency, meanwhile, the mechanical efficiency of the connecting rod system is also very high, energy waste is avoided, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the field of life detection equipment for internal accessories of automobile seats, in particular to a bidirectional durability test bench for seat shock absorbers. Background Art

[0002] The car seat internal accessories life test equipment is used to evaluate the service life and durability of the internal components of car seats (such as springs, fillings, fabrics, etc.). It usually includes various testing instruments and equipment to simulate various forces, pressures, frictions, wear and other factors under real use conditions to evaluate the performance and life of the internal accessories of the seats. When testing the durability of car shock absorbers, a two-way durability test bench for seat shock absorbers is used.

[0003] The two-way durability test bench for seat shock absorbers is a device used to test the performance of seat shock absorbers. It can simulate various vibrations and impacts that the seat is subjected to during driving to detect the durability and performance of the seat shock absorbers. The two-way durability test bench for seat shock absorbers usually uses an electric vibrator or a hydraulic drive system as a power source, but in terms of control accuracy and response speed, the electric vibrator and the hydraulic drive system have certain limitations, and there is a certain loss in energy efficiency when the electric vibrator and the hydraulic drive system are working, which easily causes energy waste. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, a two-way durability test bench for seat shock absorbers usually uses an electric vibrator or a hydraulic drive system as a power source. However, the electric vibrator and the hydraulic drive system have certain limitations in terms of control accuracy and response speed, and there is a certain loss in energy efficiency when the electric vibrator and the hydraulic drive system are working, which easily causes energy waste. The utility model proposes a two-way durability test bench for seat shock absorbers.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a bidirectional durability test bench for a seat shock absorber, comprising a support plate, a support frame is fixedly connected to the top of the support plate, a vertical vibration mechanism is arranged on the inner side of the support frame, and a lateral vibration mechanism is arranged on the top of the support frame;

[0006] The vertical vibration mechanism includes a first motor, the first motor is fixedly connected to the inner side of the support frame, the output end of the first motor is fixedly connected to a transmission gear, the surface of the transmission gear is provided with a transmission toothed belt, the top of the support plate is fixedly connected to a guide telescopic column, the number of the guide telescopic columns is two, the top of the guide telescopic column is fixedly connected to a mounting plate, the top of the support frame is fixedly connected to a positioning frame, the inner wall of the positioning frame is rotatably connected to a rotating column, one end of the rotating column is fixedly connected to an extension column, the surface of the extension column is fixedly connected to a gear column, the gear column and the transmission gear are connected through a transmission toothed belt transmission, the other end of the rotating column is provided with a connecting column, the surface of the connecting column is rotatably connected to a bent rod, the bottom of the mounting plate is fixedly connected to a positioning block, and the surface of the bent rod is rotatably connected to the inner wall of the positioning block;

[0007] The lateral vibration mechanism includes a connecting tube, which is fixedly connected to one side of the supporting frame, one end of the connecting tube is fixedly connected to a connecting plate, one side of the connecting plate is fixedly connected to a second motor, an output end of the second motor is fixedly connected to a transmission wheel, a transmission belt is provided on the surface of the transmission wheel, an inner wall of the connecting plate is rotatably connected to a rotating rod, a surface of the rotating rod is fixedly connected to a transmission gear column, the transmission gear column and the transmission wheel are connected through a transmission belt transmission, the surface of the rotating rod is rotatably connected to the inner wall of the supporting frame, one end of the rotating rod is fixedly connected to a rotating disk, a connecting block is provided on one side of the rotating disk, the surface of the connecting block is rotatably connected to a connecting rod, the top of the mounting plate is slidably connected to a placing block, the bottom of the placing block is fixedly connected to a positioning plate, and the inner wall of the positioning plate is rotatably connected to the surface of the connecting rod.

[0008] Preferably, a transverse adjustment groove is provided on one side of the rotating column, a transverse adjustment block is fixedly connected to one side of the connecting column, and a surface of the transverse adjustment block is slidably connected to an inner cavity of the transverse adjustment groove.

[0009] Preferably, a vertical adjustment groove is provided on one side of the turntable, a vertical adjustment block is fixedly connected to one side of the connecting block, and a surface of the vertical adjustment block is slidably connected to an inner cavity of the vertical adjustment groove.

[0010] By setting the vertical adjustment slot and the vertical adjustment block, after adjusting the vertical position of the bent rod, the user needs to adjust the position of the vertical adjustment block in the vertical adjustment slot according to the adjustment distance of the bent rod to complete the adjustment of the vertical position of the connecting rod, ensuring that the connecting rod and the bent rod can ensure the normal operation of the entire experimental table when moving;

[0011] Preferably, the top of the mounting plate is fixedly connected with a guide rail, the number of the guide rails is two, the bottom of the placement block is fixedly connected with a guide block, and the inner side of the guide block is slidably connected to the surface of the guide rail.

[0012] Preferably, a slot is provided on one side of the positioning frame, a block is fixedly connected to the surface of the guiding telescopic column, and the surface of the block is in close contact with the inner cavity of the slot.

[0013] By providing a card block and a card slot, and by embedding the card block into the inner cavity of the card slot, the contact area between the card block and the card slot is increased, thereby increasing the contact area between the guide telescopic column and the positioning frame, and increasing the stability of the connection between the guide telescopic column and the positioning frame;

[0014] Preferably, the inner walls of the curved rod and the connecting rod are provided with bearings, the inner walls of the curved rod and the connecting rod are fixedly connected to the outer side of the bearing outer ring, and the surfaces of the connecting column and the connecting block are fixedly connected to the inner side of the bearing inner ring.

[0015] Preferably, a mounting bar hole is opened on the top of the placement block, the number of the mounting bar holes is several, and the inner wall of the mounting bar hole is threadedly connected with a bolt.

[0016] The utility model is beneficial in that:

[0017] The utility model completes the bidirectional detection of the durability of the seat shock absorber by arranging a vertical vibration mechanism and a lateral vibration mechanism, and replaces the electric vibrator and the hydraulic drive system by adopting a motor-driven connecting rod system. The motor-driven connecting rod system can accurately control the speed and torque of the motor according to actual needs, thereby realizing accurate control of the movement and vibration of the test bench, and the motor can operate at a higher efficiency. At the same time, the mechanical efficiency of the connecting rod system is also very high, thereby avoiding energy waste and achieving the purpose of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a bidirectional durability test bench for a seat shock absorber of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the vertical vibration mechanism of the utility model;

[0021] Figure 3 It is a three-dimensional schematic diagram of the separation of the transverse adjustment slot and the transverse adjustment block of the utility model;

[0022] Figure 4It is a three-dimensional schematic diagram of the lateral vibration mechanism of the utility model;

[0023] Figure 5 It is a three-dimensional schematic diagram of the separation of the vertical adjustment slot and the vertical adjustment block of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the guide rail and guide block, mounting strip holes and bolts of the utility model;

[0025] Figure 7 It is a schematic diagram of the separation of the card slot and the card block of the utility model.

[0026] In the figure: 1, support plate; 2, support frame; 3, vertical vibration mechanism; 301, first motor; 302, transmission gear; 303, transmission belt; 304, guide telescopic column; 305, mounting plate; 306, positioning frame; 307, rotating column; 308, extension column; 309, gear column; 310, connecting column; 311, curved rod; 312, positioning block; 4, horizontal vibration mechanism; 401, connecting tube; 402, connecting plate; 403 , second motor; 404, transmission wheel; 405, transmission belt; 406, rotating rod; 407, transmission gear column; 408, turntable; 409, connecting block; 410, connecting rod; 411, placement block; 412, positioning plate; 5, horizontal adjustment slot; 6, horizontal adjustment block; 7, vertical adjustment slot; 8, vertical adjustment block; 9, guide rail; 10, guide block; 11, slot; 12, block; 13, bearing; 14, mounting strip hole; 15, bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The following is combined with Figure 1-7 To further explain this application in detail,

[0029] The present application discloses a bidirectional durability test bench for a seat shock absorber. Figure 1 , Figure 2 and Figure 4 A bidirectional durability test bench for a seat shock absorber comprises a support plate 1, a support frame 2 is fixedly connected to the top of the support plate 1, a vertical vibration mechanism 3 is arranged inside the support frame 2, and a horizontal vibration mechanism 4 is arranged on the top of the support frame 2;

[0030] The vertical vibration mechanism 3 includes a first motor 301, the first motor 301 is fixedly connected to the inner side of the support frame 2, the output end of the first motor 301 is fixedly connected to a transmission gear 302, the surface of the transmission gear 302 is provided with a transmission toothed belt 303, the top of the support plate 1 is fixedly connected to a guide telescopic column 304, the number of the guide telescopic columns 304 is two, the top of the guide telescopic column 304 is fixedly connected to a mounting plate 305, the top of the support frame 2 is fixedly connected to a positioning frame 306, the inner side of the positioning frame 306 The wall is rotatably connected with a rotating column 307, one end of the rotating column 307 is fixedly connected with an extension column 308, the surface of the extension column 308 is fixedly connected with a gear column 309, the gear column 309 is connected to the transmission gear 302 through a transmission belt 303, the other end of the rotating column 307 is provided with a connecting column 310, the surface of the connecting column 310 is rotatably connected with a bent rod 311, the bottom of the mounting plate 305 is fixedly connected with a positioning block 312, the surface of the bent rod 311 is rotatably connected with the inner wall of the positioning block 312;

[0031] The lateral vibration mechanism 4 includes a connecting tube 401, which is fixedly connected to one side of the support frame 2, one end of the connecting tube 401 is fixedly connected to a connecting plate 402, one side of the connecting plate 402 is fixedly connected to a second motor 403, an output end of the second motor 403 is fixedly connected to a transmission wheel 404, a surface of the transmission wheel 404 is provided with a transmission belt 405, an inner wall of the connecting plate 402 is rotatably connected to a rotating rod 406, a surface of the rotating rod 406 is fixedly connected to a transmission gear column 407, and the transmission gear column 408 is fixedly connected to the transmission gear column 409. 07 is connected to the transmission wheel 404 through a transmission belt 405, the surface of the rotating rod 406 is rotatably connected to the inner wall of the support frame 2, one end of the rotating rod 406 is fixedly connected to a turntable 408, a connecting block 409 is provided on one side of the turntable 408, the surface of the connecting block 409 is rotatably connected to a connecting rod 410, the top of the mounting plate 305 is slidably connected to a placement block 411, the bottom of the placement block 411 is fixedly connected to a positioning plate 412, and the inner wall of the positioning plate 412 is rotatably connected to the surface of the connecting rod 410.

[0032] Reference Figure 3 A transverse adjustment slot 5 is provided on one side of the rotating column 307, and a transverse adjustment block 6 is fixedly connected to one side of the connecting column 310. The surface of the transverse adjustment block 6 is slidably connected to the inner cavity of the transverse adjustment slot 5. By setting the transverse adjustment slot 5 and the transverse adjustment block 6, the user adjusts the position of the connecting column 310 on the end surface of the rotating column 307 by adjusting the position of the transverse adjustment block 6 in the transverse adjustment slot 5, thereby adjusting the position of the bent rod 311, so that the distance of the bent rod 311 during the vertical reciprocating motion changes, thereby completing the adjustment of the vertical vibration amplitude of the mounting plate 305, and increasing the flexibility of adjusting different vertical vibration amplitudes according to different seats;

[0033] Reference Figure 5A vertical adjustment slot 7 is provided on one side of the turntable 408, and a vertical adjustment block 8 is fixedly connected to one side of the connecting block 409. The surface of the vertical adjustment block 8 is slidably connected to the inner cavity of the vertical adjustment slot 7. By setting the vertical adjustment slot 7 and the vertical adjustment block 8, after adjusting the vertical position of the curved rod 311, the user needs to adjust the position of the vertical adjustment block 8 in the vertical adjustment slot 7 according to the adjustment distance of the curved rod 311, and complete the adjustment of the vertical position of the connecting rod 410, ensuring that the connecting rod 410 and the curved rod 311 can ensure the normal operation of the entire experimental table when moving;

[0034] Reference Figure 6 The top of the mounting plate 305 is fixedly connected with a guide rail 9, and the number of guide rails 9 is two. The bottom of the placement block 411 is fixedly connected with a guide block 10, and the inner side of the guide block 10 is slidably connected with the surface of the guide rail 9. By setting the guide rail 9 and the guide block 10, the guide rail 9 guides the moving track of the guide block 10 through the sliding of the guide block 10 on the surface of the guide rail 9, thereby realizing the guidance of the moving track of the placement block 411 on the top of the mounting plate 305, and completing the sliding support of the placement block 411, thereby increasing the smoothness and stability of the placement block 411 when performing lateral reciprocating movement;

[0035] Reference Figure 7 A card slot 11 is provided on one side of the positioning frame 306, and a card block 12 is fixedly connected to the surface of the guide telescopic column 304. The surface of the card block 12 is in close contact with the inner cavity of the card slot 11. By setting the card block 12 and the card slot 11, the card block 12 is embedded in the inner cavity of the card slot 11, which increases the contact area between the card block 12 and the card slot 11, thereby increasing the contact area between the guide telescopic column 304 and the positioning frame 306, and increasing the stability of the connection between the guide telescopic column 304 and the positioning frame 306;

[0036] Reference Figure 3 and Figure 5 The inner walls of the crankshaft 311 and the connecting rod 410 are both provided with bearings 13, and the inner walls of the crankshaft 311 and the connecting rod 410 are both fixedly connected to the outer side of the outer ring of the bearing 13, and the surfaces of the connecting column 310 and the connecting block 409 are both fixedly connected to the inner side of the inner ring of the bearing 13. By providing the bearing 13, the friction coefficient of the mechanical load between the crankshaft 311 and the connecting rod 410 during the transmission process can be reduced, and the rotation center position can be kept fixed, so that the crankshaft 311 and the connecting rod 410 can rotate more smoothly, which is conducive to energy saving;

[0037] Reference Figure 4The top of the placement block 411 is provided with a plurality of mounting holes 14, and the inner wall of the mounting hole 14 is threadedly connected with a bolt 15. By setting the mounting holes 14 and the bolts 15, the bolts 15 are passed through the mounting holes 14 to the mounting holes of the seat to be tested, and the bolts 15 are tightened to fix the seat so that it is stably mounted on the top of the placement block 411, thereby completing the connection between the seat and the placement block 411;

[0038] Working principle: When testing the durability of the shock absorber of the car seat, the car seat is passed through the mounting hole 14 of the mounting bar 15 to the mounting hole of the seat itself, and is positioned on the top of the placement block 411. Then, the vertical vibration mechanism 3 and the horizontal vibration mechanism 4 are controlled by PLC+HDMI to work. When the vertical vibration mechanism 3 is started, the output end of the first motor 301 on the inner side of the support frame 2 rotates, driving the transmission gear 302 to rotate, and the rotation of the transmission gear 302 drives the transmission toothed belt 303 to rotate, and the transmission toothed belt 303 rotates. The rotation of the gear column 309 drives the extension column 308 and the rotation column 307 to rotate on the inner wall of the positioning frame 306. The rotation of the rotation column 307 drives the connecting column 310 to rotate. The rotation of the connecting column 310 drives the crankshaft 311 to rotate. The rotation of one end of the crankshaft 311 causes the crankshaft 311 to generate a vertical reciprocating motion. The positioning block 312 is synchronously driven by the vertical reciprocating motion of the crankshaft 311. The vertical reciprocating motion of the positioning block 312 drives the mounting plate 305 to move vertically. The reciprocating motion causes the car seat to vibrate vertically. When the vertical motion is performed, the guide telescopic column 304 at the bottom of the mounting plate 305 elastically supports the bottom of the mounting plate 305, thereby completing the vertical detection of the durability of the car seat shock absorber. After the lateral vibration mechanism 4 is started, the output end of the second motor 403 rotates to drive the transmission wheel 404 to rotate, and the rotation of the transmission wheel 404 drives the transmission belt 405 to rotate. The rotation of the transmission belt 405 drives the transmission gear column 407 to rotate, and the rotation of the transmission gear column 407 The rotation of the rotating rod 406 drives the turntable 408 to rotate, the rotation of the turntable 408 drives the connecting block 409 to rotate, the rotation of the connecting block 409 drives the connecting rod 410 to rotate, the rotation of the connecting rod 410 drives itself to produce lateral reciprocating movement, the reciprocating lateral movement of the connecting rod 410 drives the positioning plate 412 and the placement block 411 to perform lateral reciprocating movement, thereby realizing the lateral test of the durability of the automobile seat shock absorber, thereby completing the two-way test of the durability of the automobile seat shock absorber.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bidirectional durability test bench for seat shock absorbers, characterized in that: It comprises a support plate (1), the top of the support plate (1) is fixedly connected to a support frame (2), a vertical vibration mechanism (3) is arranged on the inner side of the support frame (2), and a horizontal vibration mechanism (4) is arranged on the top of the support frame (2); The vertical vibration mechanism (3) comprises a first motor (301), the first motor (301) is fixedly connected to the inner side of the support frame (2), the output end of the first motor (301) is fixedly connected to a transmission gear (302), the surface of the transmission gear (302) is provided with a transmission toothed belt (303), the top of the support plate (1) is fixedly connected to a guide telescopic column (304), the number of the guide telescopic columns (304) is two, the top of the guide telescopic column (304) is fixedly connected to a mounting plate (305), the top of the support frame (2) is fixedly connected to a positioning frame (306), the positioning frame (306) The inner wall of the mounting plate (305) is rotatably connected to a rotating column (307), one end of the rotating column (307) is fixedly connected to an extension column (308), the surface of the extension column (308) is fixedly connected to a gear column (309), the gear column (309) and the transmission gear (302) are transmission-connected via a transmission toothed belt (303), the other end of the rotating column (307) is provided with a connecting column (310), the surface of the connecting column (310) is rotatably connected to a curved rod (311), the bottom of the mounting plate (305) is fixedly connected to a positioning block (312), the surface of the curved rod (311) is rotatably connected to the inner wall of the positioning block (312); The lateral vibration mechanism (4) comprises a connecting tube (401), wherein the connecting tube (401) is fixedly connected to one side of the support frame (2), one end of the connecting tube (401) is fixedly connected to a connecting plate (402), one side of the connecting plate (402) is fixedly connected to a second motor (403), an output end of the second motor (403) is fixedly connected to a transmission wheel (404), a surface of the transmission wheel (404) is provided with a transmission belt (405), an inner wall of the connecting plate (402) is rotatably connected to a rotating rod (406), a surface of the rotating rod (406) is fixedly connected to a transmission tooth column (407), and the transmission tooth column (407) is connected to the transmission wheel (404) through a transmission belt (405), the surface of the rotating rod (406) is rotatably connected to the inner wall of the support frame (2), one end of the rotating rod (406) is fixedly connected to a turntable (408), one side of the turntable (408) is provided with a connecting block (409), the surface of the connecting block (409) is rotatably connected to a connecting rod (410), the top of the mounting plate (305) is slidably connected to a placement block (411), the bottom of the placement block (411) is fixedly connected to a positioning plate (412), and the inner wall of the positioning plate (412) is rotatably connected to the surface of the connecting rod (410).

2. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: A transverse adjustment groove (5) is provided on one side of the rotating column (307), and a transverse adjustment block (6) is fixedly connected to one side of the connecting column (310), and the surface of the transverse adjustment block (6) is slidably connected to the inner cavity of the transverse adjustment groove (5).

3. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: A vertical adjustment groove (7) is provided on one side of the rotating disk (408), a vertical adjustment block (8) is fixedly connected to one side of the connecting block (409), and a surface of the vertical adjustment block (8) is slidably connected to an inner cavity of the vertical adjustment groove (7).

4. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: The top of the mounting plate (305) is fixedly connected to a guide rail (9), the number of the guide rails (9) is two, the bottom of the placement block (411) is fixedly connected to a guide block (10), the inner side of the guide block (10) is slidably connected to the surface of the guide rail (9).

5. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: A card slot (11) is provided on one side of the positioning frame (306), a card block (12) is fixedly connected to the surface of the guide telescopic column (304), and the surface of the card block (12) is in close contact with the inner cavity of the card slot (11).

6. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: The inner walls of the curved rod (311) and the connecting rod (410) are both provided with bearings (13); the inner walls of the curved rod (311) and the connecting rod (410) are both fixedly connected to the outer side of the outer ring of the bearing (13); and the surfaces of the connecting column (310) and the connecting block (409) are both fixedly connected to the inner side of the inner ring of the bearing (13).

7. The bidirectional durability test bench for seat shock absorbers according to claim 1, characterized in that: The top of the placement block (411) is provided with a plurality of mounting holes (14), and the inner walls of the mounting holes (14) are threadedly connected with bolts (15).

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