Shock absorber testing device

Abstract

The utility model relates to a shock absorber testing device which comprises a rack and a test bench arranged on the rack, the test bench is provided with a plurality of first workpiece fixing seats, and the first workpiece fixing seats are provided with first plug pins used for being detachably connected with mounting holes in one end of a shock absorber. The bottom of the test bench is connected with a reciprocating driving mechanism used for driving the test bench to reciprocate up and down, a lifting platform is correspondingly arranged above the test bench, a plurality of second workpiece fixing seats are arranged on the lifting platform, and second bolts used for being detachably connected with mounting holes in the other ends of the shock absorbers are arranged on the second workpiece fixing seats. And a power lifting mechanism is correspondingly arranged above the lifting platform. According to the shock absorber testing device disclosed by the utility model, the height between the lifting table and the testing table can be adjusted according to shock absorbers with different height sizes, so that the device can be suitable for testing shock absorbers with more height sizes.

Description

Technical Field

[0001] The utility model relates to the field of vehicle shock absorbers, in particular to a shock absorber testing device. Background Art

[0002] Hydraulic shock absorbers are a crucial component of a car or motorcycle's suspension system, primarily used to improve ride comfort and reduce the impact and vibration caused by uneven roads. Hydraulic shock absorbers achieve their shock absorption effect through the flow of oil within them. They typically employ a double-tube structure, consisting of two inner and outer tubes. The inner tube serves as the primary working space, while the outer tube serves as the oil reservoir. The shock absorber piston moves within the inner tube. The compression and rebound of the piston rod cause the volume of the oil within the inner tube to expand and contract, thereby maintaining the balance of the hydraulic oil within the inner tube through oil exchange with the external fluid.

[0003] Before leaving the factory, these shock absorbers are subjected to reciprocating squeezing forces at both ends, requiring thousands, or even tens of thousands, of cycles of life testing within a specific testing cycle. Most testing machines currently available on the market can only test a single shock absorber within a batch. As end-user manufacturers increase their demand for shock absorber quality, they need to sample multiple shock absorbers and conduct life testing under the same conditions. Addressing the shortcomings of existing technologies, a new technical solution is necessary. Utility Model Content

[0004] The utility model provides a shock absorber testing device, aiming to at least solve one of the technical problems existing in the prior art.

[0005] The technical solution of the utility model is a shock absorber testing device, which includes: a frame, a test table arranged on the frame, a plurality of first workpiece fixing seats are provided on the test table, the first workpiece fixing seats are provided with a first pin for detachably connecting to the mounting hole at one end of the shock absorber, the bottom of the test table is connected to a reciprocating drive mechanism for driving the test table to reciprocate up and down, a lifting platform is provided above the corresponding test table, a plurality of second workpiece fixing seats are provided on the lifting platform, the second workpiece fixing seats are provided with a second pin for detachably connecting to the mounting hole at the other end of the shock absorber, a power lifting mechanism is provided above the corresponding lifting platform, the power lifting mechanism includes a mounting platform, a worm gear screw lifter arranged on the mounting platform, a first drive motor connected to the power input end of the worm gear screw lifter, and a screw connected to the worm gear screw lifter, the end of the screw is fixedly connected to the lifting platform, a guide column fixedly connecting the mounting platform and the test table, the guide column passes through the lifting platform to allow the worm gear screw lifter to drive the screw to link the lifting platform to move up and down to adjust the distance between the test table and the lifting platform.

[0006] Furthermore, the reciprocating drive mechanism includes a second drive motor, a worm gear reducer, a main shaft, an eccentric connector and an up and down moving connecting rod. The motor shaft of the second drive motor is connected to the power input end of the worm gear reducer, the output end of the worm gear reducer is transmission-connected to one end of the main shaft, and the other end of the main shaft is connected to the up and down moving connecting rod through an eccentric connector to allow the up and down moving connecting rod to link the test bench to reciprocate up and down.

[0007] Furthermore, the worm gear screw lifts are respectively arranged on both sides of the mounting platform, and the ends of the screws connected to the pair of worm gear screw lifts are fixedly connected to the two sides of the lifting platform respectively. The pair of worm gear screw lifts are connected by a transmission rod to allow each of the worm gear screw lifts to move up and down the lifting platform at equal distances. The two sides of the mounting platform and the test platform are respectively fixedly connected by the two ends of the guide columns, and a pair of guide columns pass through the lifting platform to allow the guide columns to guide the lifting platform to move up and down.

[0008] Furthermore, the first workpiece fixing seat is provided with a first mounting groove, and the two side edges of the first mounting groove are provided with multiple pairs of first mounting holes for inserting the first pin. The second workpiece fixing seat is provided with a second mounting groove, and the two side edges of the second mounting groove are provided with multiple pairs of second mounting holes for inserting the second pin.

[0009] Furthermore, the surface array of the test platform is provided with a plurality of first workpiece fixing seats, and the bottom array of the lifting platform is provided with a plurality of second workpiece fixing seats corresponding to the first workpiece fixing seats above and below.

[0010] Furthermore, the reciprocating drive mechanism is installed below the frame.

[0011] Furthermore, it also includes: a PLC controller, which is electrically connected to the power lifting mechanism and the reciprocating drive mechanism respectively.

[0012] Furthermore, a wire channel is vertically arranged on the frame, and the top end of the wire channel is connected to the mounting platform.

[0013] The beneficial effects of the utility model include:

[0014] 1. The test bench is provided with multiple sets of first workpiece fixing seats, which can perform life tests on multiple shock absorbers at the same time; the lifting platform is provided with multiple second workpiece fixing seats, and the second workpiece fixing seats are provided with second pins for detachable connection with the mounting holes at the other end of the shock absorbers. The mounting holes at the other end of the shock absorbers are connected to the second workpiece fixing seats through the second pins, and users can easily remove the pins to replace the test shock absorbers.

[0015] 2. The reciprocating drive mechanism provides the test bench with up and down reciprocating power, so that multiple groups of shock absorbers can be squeezed under the same reciprocating motion conditions to perform life tests thousands or even tens of thousands of times to determine whether the working life of the shock absorber meets the quality requirements.

[0016] 3. The worm gear screw lifter of the test device is set at the top, and the traction screw rotates upward or downward, thereby driving the lifting platform to move up and down. In this way, the height between the lifting platform and the test platform can be adjusted for shock absorbers of different heights and sizes, so that the device can adapt to shock absorbers of more heights and sizes for testing.

[0017] In addition, additional aspects and advantages of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 3 is a first angle detailed schematic diagram of a shock absorber testing device according to an embodiment of the present invention.

[0019] Figure 2 2 is a detailed schematic diagram of a shock absorber testing device according to an embodiment of the present invention from a second angle.

[0020] Figure 3 A third angle detailed schematic diagram of the shock absorber testing device according to an embodiment of the present invention.

[0021] Figure 4 A schematic longitudinal section detail diagram of a shock absorber testing device according to an embodiment of the present invention.

[0022] Figure 5 A schematic diagram of details of a workpiece fixing seat according to a first angle of an embodiment of the present invention.

[0023] Figure 6 A second angle detailed schematic diagram of a workpiece fixing base according to an embodiment of the present invention.

[0024] Figure 7 A detailed schematic diagram of the reciprocating drive mechanism of an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0026] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. In addition, the terms "upper," "lower," "left," "right," "top," and "bottom" used in this utility model are merely relative to the relative positions of the components of the utility model in the accompanying drawings.

[0027] In addition, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. The terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. The term "and / or" as used herein includes any combination of one or more of the related listed items.

[0028] It should be understood that although the terms first, second, third, etc. may be used to describe various elements in the present disclosure, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from each other. For example, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element without departing from the scope of the present disclosure.

[0029] Reference Figures 1 to 7 In some embodiments, the present invention discloses a shock absorber testing device, comprising:

[0030] Reference Figures 1 to 4 The frame 100 shown in the figure is provided with a test table 200 on the frame 100, and a plurality of first workpiece fixing seats 210 are provided on the test table 200. Figure 2 As shown, the embodiment of the test bench 200 is provided with six sets of first workpiece fixing seats 210, which can perform life tests on six shock absorbers at the same time.

[0031] Reference Figures 5 to 6 As shown, the first workpiece fixing seat 210 is provided with a first latch 220 for detachably connecting with the mounting hole at one end of the shock absorber. Since both ends of the shock absorber have mounting holes, the mounting hole at one end is connected to the first workpiece fixing seat 210 through the first latch 220. Figure 3 As shown, a lifting platform 300 is provided above the corresponding test bench 200, and a plurality of second workpiece fixing seats 310 are provided on the lifting platform 300. The second workpiece fixing seats 310 are provided with second pins 320 for detachable connection with the mounting hole at the other end of the shock absorber, and the mounting hole at the other end of the shock absorber is connected to the second workpiece fixing seat 310 through the second pin 320.

[0032] Continue to refer to Figure 4 Combine Figure 7As shown, the bottom of the test bench 200 is connected to a reciprocating drive mechanism 500 for driving the test bench 200 to perform up and down reciprocating motion. The reciprocating drive mechanism 500 provides the test bench 200 with up and down reciprocating power, so that multiple groups of shock absorbers can be squeezed under the same reciprocating motion conditions to perform life tests thousands or even tens of thousands of times to determine whether the working life of the shock absorber meets the quality requirements.

[0033] Continue to refer to Figures 1 to 4 As shown, a power lifting mechanism 400 is provided above the corresponding lifting platform 300. The power lifting mechanism 400 includes a mounting platform 410, a worm gear screw lift 420 provided on the mounting platform 410, a first drive motor 430 connected to the power input end of the worm gear screw lift 420, and a screw 440 connected to the worm gear screw lift 420, the end of which is fixedly connected to the lifting platform 300. The worm gear screw lift 420 of the test device is provided at the top. The worm gear screw lift 420 can be a 5T worm gear screw lift. The screw 440 in the traction diagram rotates upward or downward in a spiral, thereby driving the lifting platform 300 to move up and down. In this way, the height between the lifting platform 300 and the test platform 200 can be adjusted for shock absorbers of different heights, so that the device can adapt to shock absorbers of more heights for testing.

[0034] In order to make the test bench move up and down more accurately with the lifting platform, refer to Figures 1 to 4 As shown, a guide post 600 is fixedly connected to the mounting platform 410 and the test platform 200. The guide post 600 passes through the lifting platform 300 to allow the worm gear screw lift 420 to drive the screw 440 to move the lifting platform 300 up and down, thereby adjusting the distance between the test platform 200 and the lifting platform 300. The guide post can make the lifting platform move more accurately in the straight line direction.

[0035] Reference Figure 3 Combine Figure 7 As shown, the reciprocating drive mechanism 500 includes a second drive motor 510, a worm gear reducer 520, a main shaft 530, an eccentric connector 540 and an up-and-down motion connecting rod 550. The motor shaft of the second drive motor 510 is connected to the power input end of the worm gear reducer 520, the output end of the worm gear reducer 520 is connected to one end of the main shaft 530, and the other end of the main shaft 530 is connected to the up-and-down motion connecting rod 550 through the eccentric connector 540, so as to allow the up-and-down motion connecting rod 550 to link the test bench 200 to reciprocate up and down. The worm gear reducer 520 in the embodiment of the figure is a WPWD type worm gear reducer, so that the high-speed power output by the second drive motor 510 is transmitted to the main shaft 530 after being decelerated by the reducer, and the low-speed and high-torque of the main shaft 530 is then transmitted to the eccentric connector 540. Figure 7 As shown, the output end of the eccentric connector 540 is an eccentric connecting block, which is connected to the up and down moving connecting rod 550, so that the up and down moving connecting rod 550 reciprocates up and down, driving the test bench 200 to reciprocate up and down. Of course, the reciprocating drive mechanism 500 can use other reciprocating drive mechanisms 500 to drive the test bench 200 to reciprocate up and down.

[0036] In order to further improve the test device, refer to Figures 1 to 4 As shown, the worm gear screw lifts 420 are mounted on either side of the mounting platform 410. The ends of the screws 440, which are connected to the pair of worm gear screw lifts 420, are fixedly connected to either side of the lifting platform 300. The pair of worm gear screw lifts 420 are connected via a transmission rod 490, allowing each worm gear screw lift 420 to move up and down with the lifting platform 300 at equal intervals. The mounting platform 410 and the test bench 200 are fixedly connected on either side by the ends of the guide posts 600. A pair of guide posts 600 pass through the lifting platform 300 to guide the lifting platform 300 in its up and down movement. The guide posts 600 are located on either side of the mounting platform 410 and cooperate with the worm gear screw lifts 420 to move the lifting platform 300 up and down at equal intervals. This allows the long lifting platform to be driven up and down by a pair of screws, and the same motor can drive both lifting platforms.

[0037] Reference Figure 5 Combine Figure 6 As shown, the first workpiece fixing base 210 has a first mounting groove 211, with multiple pairs of first mounting holes 212 for receiving the first latches 220 on either side of the first mounting groove 211. The second workpiece fixing base 310 has a second mounting groove 311, with multiple pairs of second mounting holes 312 for receiving the second latches 320 on either side of the second mounting groove 311. The mounting holes at both ends of the shock absorber can be secured with latches in multiple positions on the two workpiece fixing bases, allowing for test mounting of shock absorbers with various mounting hole positions.

[0038] Reference Figure 2 As shown, the surface array of the test table 200 is provided with a plurality of first workpiece fixing seats 210 , and the bottom array of the lifting platform 300 is provided with a plurality of second workpiece fixing seats 310 corresponding to the first workpiece fixing seats 210 above and below.

[0039] In some embodiments, the reciprocating drive mechanism 500 is installed below the frame 100 .

[0040] Reference Figure 1As shown, the system also includes a PLC controller 700, which is electrically connected to the power lifting mechanism 400 and the reciprocating drive mechanism 500. The PLC controller allows the user to control the height of the power lifting mechanism 400 from the test bench 200 and adjust the vibration frequency of the reciprocating drive mechanism 500 to adapt to various shock absorber testing conditions.

[0041] Continue to refer to Figure 1 As shown, a wire channel 800 is vertically provided on the rack 100 , and the top of the wire channel 800 is connected to the mounting platform 410 . The electrical circuit of the lifting mechanism 400 can be reasonably configured through the wire channel 800 .

[0042] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the aforementioned embodiments. As long as the technical effects of the present invention are achieved by the same means, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure. Within the scope of protection of the present invention, its technical solutions and / or implementation methods may be modified and varied in various ways.

Claims

1. A shock absorber testing device, characterized in that: include: Rack (100), A test bench (200) is provided on the frame (100), wherein a plurality of first workpiece fixing seats (210) are provided on the test bench (200), and a first latch (220) is provided on the first workpiece fixing seat (210) for detachably connecting with a mounting hole at one end of the shock absorber, The bottom of the test bench (200) is connected to a reciprocating drive mechanism (500) for driving the test bench (200) to perform up and down reciprocating motion. A lifting platform (300) is provided above the corresponding test bench (200), and a plurality of second workpiece fixing seats (310) are provided on the lifting platform (300). The second workpiece fixing seats (310) are provided with second latches (320) for detachably connecting to the mounting holes at the other end of the shock absorber. A power lifting mechanism (400) is provided above the corresponding lifting platform (300), and the power lifting mechanism (400) includes a mounting platform (410), a worm gear screw lift (420) provided on the mounting platform (410), a first driving motor (430) connected to the power input end of the worm gear screw lift (420), and a screw (440) connected to the worm gear screw lift (420), wherein the end of the screw is fixedly connected to the lifting platform (300). A guide column (600) is fixedly connected to the mounting platform (410) and the test platform (200), and the guide column (600) passes through the lifting platform (300) to allow the worm gear screw elevator (420) to drive the screw (440) to move the lifting platform (300) up and down, so as to adjust the distance between the test platform (200) and the lifting platform (300).

2. The shock absorber testing device according to claim 1, characterized in that: The reciprocating drive mechanism (500) comprises a second drive motor (510), a worm gear reducer (520), a main shaft (530), an eccentric connector (540) and an up-and-down motion connecting rod (550); the motor shaft of the second drive motor (510) is connected to the power input end of the worm gear reducer (520); the output end of the worm gear reducer (520) is transmission-connected to one end of the main shaft (530); the other end of the main shaft (530) is connected to the up-and-down motion connecting rod (550) via the eccentric connector (540), so as to allow the up-and-down motion connecting rod (550) to link the test bench (200) to reciprocate up and down.

3. The shock absorber testing device according to claim 1, characterized in that: The worm gear screw lifts (420) are respectively provided on both sides of the mounting platform (410), and the ends of the screw rods (440) connected to the pair of worm gear screw lifts (420) are respectively fixedly connected to both sides of the lifting platform (300). The pair of worm gear screw lifts (420) are connected to each other through a transmission rod (490) to allow each of the worm gear screw lifts (420) to move up and down in a linkage manner with the lifting platform (300) at equal distances. The two sides of the mounting platform (410) and the test platform (200) are fixedly connected through the two ends of the guide pillars (600), and a pair of the guide pillars (600) pass through the lifting platform (300) to allow the guide pillars (600) to guide the lifting platform (300) to move up and down.

4. The shock absorber testing device according to claim 1, characterized in that: The first workpiece fixing seat (210) is provided with a first mounting groove (211), and two side edges of the first mounting groove (211) are provided with a plurality of pairs of first mounting holes (212) for inserting the first latch pin (220). The second workpiece fixing seat (310) is provided with a second mounting groove (311), and two side edges of the second mounting groove (311) are provided with multiple pairs of second mounting holes (312) for plugging the second latch pins (320).

5. The shock absorber testing device according to claim 1, characterized in that: The surface array of the test bench (200) is provided with a plurality of first workpiece fixing seats (210), The bottom surface array of the lifting platform (300) is provided with a plurality of second workpiece fixing seats (310) corresponding to the first workpiece fixing seats (210) above and below.

6. The shock absorber testing device according to claim 2, characterized in that: The reciprocating drive mechanism (500) is installed below the frame (100).

7. The shock absorber testing device according to claim 1, characterized in that: Also includes: A PLC controller (700) is electrically connected to the power lifting mechanism (400) and the reciprocating drive mechanism (500) respectively.

8. The shock absorber testing device according to claim 1, characterized in that: A wire channel (800) is vertically arranged on the frame (100), and the top end of the wire channel (800) is connected to the mounting platform (410).

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