Pedal arm static load testing device

Abstract

The utility model relates to the technical field of pedal arm test, concretely is a kind of pedal arm static load testing device, including test cabinet, the top surface of test cabinet is connected with bearing table, and the bearing table includes loading plate, the top of loading plate is fixed with two locating seats, the test cavity capable of placing pedal arm is opened in the outside of locating seat, the outside of test cavity is provided with limiting assembly, the top of test cabinet is provided with load applying piece, and load applying piece includes the L-shaped column fixedly connected with test cabinet. In the utility model, the pedal arm is pressed down by the extension of hydraulic cylinder output end, whether the pedal arm is broken after being subjected to static load pressure is observed to assess whether the pedal arm meets processing standard, two locating seats can alternatively transfer pedal arm to load applying piece to carry out static load test, reach the effect of pedal arm continuous feeding test, help to improve the overall efficiency of multiple pedal arm static load test.

Description

Technical Field

[0001] This utility model relates to the field of pedal arm testing technology, specifically a pedal arm static load testing device. Background Technology

[0002] The accelerator pedal arm is a key component of the vehicle's power control system. Its structural strength is crucial to ensuring the normal operation of the vehicle's power system. If the accelerator pedal arm breaks or deforms during use, it may cause the vehicle's power output to go out of control, thereby causing traffic accidents. Therefore, the structural strength of the pedal arm needs to be tested during the manufacturing process.

[0003] Traditional methods for testing the structural strength of pedal arms mainly rely on visual inspection and material composition analysis. While these methods can ensure that the shape and materials of the pedal arms meet the design requirements to a certain extent, they cannot effectively assess the structural strength of the pedal arms in actual use. For example, although material composition analysis can determine the chemical composition of the materials, it cannot reflect the mechanical properties of the materials under pressure in actual use.

[0004] Therefore, it is necessary to design a static load testing device for pedal arms to simulate the maximum load conditions that pedal arms may encounter in actual use, so as to accurately evaluate their actual load-bearing capacity. Utility Model Content

[0005] The purpose of this invention is to provide a static load testing device for a pedal arm to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A static load testing device for a pedal arm includes a test cabinet, a support platform, two limiting components, and a load application component. The support platform is rotatably mounted on the top surface of the test cabinet. The support platform includes a carrier plate, and two positioning seats are fixed on the top of the carrier plate. A test cavity is opened on the outside of the positioning seats, and a positioning shaft, a positioning block one, and a positioning block two are fixed inside the test cavity.

[0008] Two limiting components are respectively arranged outside the test chamber at the corresponding position. The limiting component includes a collar that slides and engages with the positioning shaft. A connecting shaft is rotatably connected to the outer side of the collar, and a baffle is fixed at one end of the connecting shaft.

[0009] The load application component is arranged on the top of the test cabinet. The load application component includes an L-shaped column fixed to the test cabinet. A hydraulic cylinder is fixed to the top of the L-shaped column. A sleeve is fixed to the output end of the hydraulic cylinder. A movable column is slidably engaged at the bottom of the sleeve. A pressure plate is installed at the bottom of the movable column through a ball joint.

[0010] Furthermore, the bottom surface of the carrier plate is fixed with a turntable that is rotatably connected to the test cabinet, and the inside of the test cabinet is fixed with a motor that can drive the turntable to rotate.

[0011] Furthermore, a pressure sensor is fixedly installed on the top of the movable column, and a connecting spring is fixed between the pressure sensor and the sleeve.

[0012] Furthermore, two grooves are provided on the inner side of the sleeve, and two sliders are fixed on the outer side of the movable column, with the sliders slidably connected to the grooves at the corresponding positions.

[0013] Furthermore, the inner side of the test cavity on the positioning seat is provided with an annular groove one and an annular groove two, and a connecting groove is provided between the annular groove one and the annular groove two.

[0014] Furthermore, the collar is arranged inside the second annular groove, and a connecting block that is rotatably connected to the connecting shaft is fixed on the outside of the collar.

[0015] Furthermore, a limiting block is fixed to the outside of the connecting shaft, and the limiting block rotates and abuts against the annular groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By placing the pedal arm inside the test chamber of the positioning seat, the shaft hole in the middle of the pedal arm is connected to the positioning shaft inside the test chamber. The output end of the hydraulic cylinder extends, causing the sleeve to move downward. The sleeve presses down on the movable column through the connecting spring, causing the movable column to press down on the foot-pressing end of the pedal arm with the pressure plate, thus simulating the scenario of a user stepping on the pedal arm. A pressure sensor is installed between the connecting spring and the movable column. The pressure sensor can measure the pressure load applied to the pedal arm by the hydraulic cylinder. When the pressure sensor reading reaches the test pressure value, the hydraulic cylinder stops pressing down on the pedal arm. When the pedal arm rotates around the positioning shaft under pressure, positioning block one and positioning block two inside the test chamber respectively hinder the rotation of the pedal arm at the upper and lower positions of the pedal arm, thereby testing whether the pedal arm will break after being subjected to static load, which helps to test and evaluate the actual load-bearing capacity of the pedal arm.

[0018] 2. By rotating two positioning seats on the top of the test cabinet, when the motor drives the positioning seats to rotate and move one pedal arm to the load application component for static load testing, the other positioning seat can rotate to the user's position, making it convenient for the user to place another pedal arm on the positioning seat for testing. After the pedal arm that has completed the test rotates to the user's position, the spare pedal arm can also rotate synchronously to the load application component for static load testing, thereby realizing the sequential testing of multiple pedal arms and helping to improve the overall efficiency of static load testing of multiple pedal arms. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the support platform structure in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the positioning seat and limiting component in this utility model.

[0022] Figure 4 This is a schematic diagram of the load application component in this utility model;

[0023] Figure 5 This is a schematic diagram of the pedal arm in the pressed-down state of this utility model.

[0024] In the diagram: 100, Test cabinet; 200, Support platform; 210, Carrier plate; 211, Turntable; 220, Positioning seat; 221, Positioning shaft; 2211, Slot; 222, Positioning block one; 223, Positioning block two; 224, Annular groove one; 225, Annular groove two; 226, Connecting groove; 300, Limiting assembly; 310, Collar; 320, Connecting shaft; 321, Limiting block; 330, Baffle; 400, Load application component; 410, L-shaped column; 420, Hydraulic cylinder; 430, Sleeve; 440, Movable column; 441, Pressure sensor; 450, Connecting spring; 460, Pressure plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1, please refer to Figure 1 - Figure 5In this embodiment of the present invention, a static load testing device for a pedal arm includes a test cabinet 100. A support platform 200 is rotatably connected to the top surface of the test cabinet 100. The support platform 200 includes a carrier plate 210. Two positioning seats 220 are fixed to the top of the carrier plate 210. A test cavity for placing a pedal arm is provided on the outer side of the positioning seats 220. A positioning shaft 221, a positioning block 1 222, and a positioning block 223 for limiting the test position of the pedal arm are fixed inside the test cavity. A limiting component 300 is provided outside the test cavity. The limiting component 300 includes a collar 310 that is slidably engaged with the positioning shaft 221. A connecting shaft 320 is rotatably connected to the outer side of the collar 310. A baffle 330 is fixed to one end of the connecting shaft 320. The baffle 330 can prevent the pedal arm from disengaging from the test chamber. A load application component 400 is provided on the top of the test cabinet 100. The load application component 400 includes an L-shaped column 410 fixedly connected to the test cabinet 100. A hydraulic cylinder 420 is fixed to the top of the L-shaped column 410. A sleeve 430 is fixed to the output end of the hydraulic cylinder 420. A movable column 440 is slidably engaged at the bottom of the sleeve 430. A pressure plate 460 is installed at the bottom of the movable column 440 through a ball hinge. The pressure plate 460 presses down on one end of the pedal arm.

[0027] Specifically, a test cavity for accommodating the pedal arm is pre-set inside the positioning seat 220. After the positioning seat 220 rotates the pedal arm to below the load application component 400, the output end of the hydraulic cylinder 420 extends, causing the pressure plate 460 to press down and fix the pedal arm. The pedal arm is evaluated to determine whether it meets the processing standards by observing whether it breaks after being subjected to a certain static load pressure. If the pedal arm is observed to break or deform during the static load test, it indicates that its strength is insufficient to withstand the load in actual use, and the processing technology or materials need to be improved. If the pedal arm is intact during the static load test, it indicates that the pedal arm meets the processing standards. Furthermore, two positioning seats 220 are symmetrically arranged on the top of the test cabinet 100. The two positioning seats 220 can alternately transfer the pedal arm to the load application component 400 for static load testing, achieving the effect of continuous feeding test of the pedal arm, which helps to improve the overall efficiency of static load testing of multiple pedal arms.

[0028] like Figure 1 and Figure 2 As shown, in this embodiment, a turntable 211 is fixed on the bottom surface of the carrier plate 210 and rotatably connected to the test cabinet 100. A motor that can drive the turntable 211 to rotate is fixed inside the test cabinet 100. The output end of the motor drives the turntable 211 to rotate, causing the carrier plate 210 to rotate with two positioning seats 220. The rotation of the two positioning seats 220 can transfer the pedal arm to be tested to the test station. The pedal arm that has been tested is transferred to the front of the test cabinet 100 for easy replacement of the pedal arm, so that the testing and disassembly of the pedal arm can be carried out continuously.

[0029] like Figure 3As shown, in this embodiment, a positioning block 222 is fixed to the top inner surface of the test chamber, and a positioning block 223 is fixed to the bottom inner surface of the test chamber. In the initial state, as shown... Figure 2 As shown, at this time, the pedal arm placed on the positioning shaft 221 does not abut against the positioning block 222 or the positioning block 223. During the static load test, as shown... Figure 5 As shown, the pedal arm rotates around the positioning shaft 221. A partial position at the top of the pedal arm abuts against positioning block 1 222, and a partial position at the bottom of the pedal arm abuts against positioning block 223. This allows the pedal arm to be stopped from rotating by positioning block 1 222 and positioning block 223, so that the pedal arm can be subjected to static load.

[0030] like Figure 4 As shown, in this embodiment, a pressure sensor 441 is fixedly installed on the top of the movable column 440. A connecting spring 450 is fixed between the pressure sensor 441 and the sleeve 430. When the output end of the hydraulic cylinder 420 extends and the sleeve 430 presses down on the connecting spring 450, the connecting spring 450 will compress and squeeze the pressure sensor 441 part of the movable column 440. The pressure sensor 441 can measure the applied downward pressure in real time. When the pressure plate 460 presses down to the point where the pedal arm cannot rotate inside the test chamber, the output end of the hydraulic cylinder 420 continues to extend. The compression force of the connecting spring 450 increases, and the force of the movable column 440 pressing down on the pedal arm also increases. When the pressure value displayed by the pressure sensor 441 reaches the test value, the output end of the hydraulic cylinder 420 can be stopped from continuing to extend, so that the pedal arm is in a long-term static load pressure test state.

[0031] In this embodiment, for example, the actual test shows that the downward pressure applied to the pedal arm's tread surface is 800N. If the pedal arm does not break when the applied pressure is greater than 800N, it indicates that the structural strength of the pedal arm meets the process requirements. The pressure plate 460 is arc-shaped so that it can fit and contact the tread surface of the pedal arm. In addition, the movable column 440 and the pressure plate 460 are hinged together by an existing ball joint, so that the movable column 440 can always press the pedal arm through the pressure plate 460 when the pedal arm rotates in the initial state.

[0032] like Figure 4 As shown, in this embodiment, two sliding grooves are provided on the inner side of the sleeve 430, and two sliders are fixed on the outer side of the movable column 440. The sliders are slidably connected to the corresponding sliding grooves, so that the movable column 440 will not separate from the sleeve 430 when the hydraulic cylinder 420 drives the sleeve 430 to move upward.

[0033] like Figure 3As shown, in this embodiment, the inner side of the test cavity on the positioning seat 220 is provided with an annular groove 224 and an annular groove 225. A connecting groove 226 is provided between the annular groove 224 and the annular groove 225. In the initial state, the collar 310 is arranged inside the annular groove 225. A connecting block that is rotatably connected to the connecting shaft 320 is fixed on the outer side of the collar 310. The connecting block is arranged inside the connecting groove 226. A limiting block 321 is fixed on the outer side of the connecting shaft 320. The limiting block 321 is rotatably attached to the annular groove 224.

[0034] In this embodiment, when placing the pedal arm onto the positioning seat 220, the handle on the hand baffle 330 is rotated 180 degrees. At this time, as... Figure 2 As shown, the user can then attach the pedal arm to the positioning shaft 221 and place the entire pedal arm inside the test chamber, after which the baffle 330 is released, as... Figure 1 As shown, under the action of its own weight, the baffle 330 rotates and blocks the outside of the pedal arm. At this time, the limiting block 321 on the connecting shaft 320 is inside the annular groove 224. The baffle 330 cannot detach the connecting shaft 320 from the positioning seat 220 on its own, thus achieving the limiting installation of the pedal arm.

[0035] When it is necessary to remove the pedal arm after testing, first rotate the baffle 330 by 180 degrees so that the baffle 330 does not obstruct the pedal arm from leaving the test chamber. At this time, the limiting block 321 on the connecting shaft 320 rotates to the position of the connecting groove 226. Then, pull the baffle 330 outward. The baffle 330 slides outward with the collar 310 through the connecting shaft 320 and the connecting block. The collar 310 pushes the pedal arm outward from the positioning shaft 221, making it convenient for the user to remove the pedal arm.

[0036] like Figure 3 As shown, in this embodiment, a protrusion is fixed in the middle of the collar 310, and a slot 2211 is provided on the outer side of the positioning shaft 221. The protrusion slides inside the slot 2211, which can satisfy the collar 310 to push the pedal arm out of the positioning seat 220, and can also prevent the collar 310 from disengaging from the positioning shaft 221.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the static load of a pedal arm, characterized in that, include: Test cabinet (100); The support platform (200) is rotatably mounted on the top surface of the test cabinet (100). The support platform (200) includes a carrier plate (210). Two positioning seats (220) are fixed on the top of the carrier plate (210). A test cavity is opened on the outside of the positioning seat (220). A positioning shaft (221), a positioning block one (222), and a positioning block two (223) are fixed inside the test cavity. Two limiting components (300) are respectively arranged outside the test chamber at the corresponding position. The limiting component (300) includes a collar (310) that is slidably engaged with the positioning shaft (221). A connecting shaft (320) is rotatably connected to the outer side of the collar (310). A baffle (330) is fixed at one end of the connecting shaft (320). The load application component (400) includes an L-shaped column (410) fixed to the test cabinet (100), a hydraulic cylinder (420) fixed to the top of the L-shaped column (410), a sleeve (430) fixed to the output end of the hydraulic cylinder (420), a movable column (440) slidably engaged at the bottom of the sleeve (430), and a pressure plate (460) mounted at the bottom of the movable column (440) via a ball joint.

2. The treadmill arm static load testing device according to claim 1, characterized in that, The bottom surface of the carrier plate (210) is fixed with a turntable (211) that is rotatably connected to the test cabinet (100), and the inside of the test cabinet (100) is fixed with a motor that can drive the turntable (211) to rotate.

3. The treadmill arm static load testing device according to claim 1, characterized in that, A pressure sensor (441) is fixedly mounted on the top of the movable column (440), and a connecting spring (450) is fixed between the pressure sensor (441) and the sleeve (430).

4. The treadmill arm static load testing device according to claim 3, characterized in that, Two grooves are provided on the inner side of the sleeve (430), and two sliders are fixed on the outer side of the movable column (440). The sliders are slidably connected to the grooves at the corresponding positions.

5. The treadmill arm static load testing device according to claim 1, characterized in that, The inner side of the test cavity on the positioning seat (220) is provided with an annular groove 1 (224) and an annular groove 2 (225), and a connecting groove (226) is provided between the annular groove 1 (224) and the annular groove 2 (225).

6. The treadmill arm static load testing device according to claim 5, characterized in that, The collar (310) is arranged inside the annular groove (225), and a connecting block that is rotatably connected to the connecting shaft (320) is fixed on the outside of the collar (310).

7. The treadmill arm static load testing device according to claim 6, characterized in that, A limiting block (321) is fixed on the outside of the connecting shaft (320), and the limiting block (321) rotates and abuts against the annular groove (224).

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