A load loading device for simulating prong-type and rod-type loads
By designing clamping structure components and adjustment mechanisms, the problems of unstable clamping and safety hazards in existing devices have been solved, achieving stable clamping and safety protection for samples of different sizes, and improving testing accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FAW KOYO STEERING SYST LTD
- Filing Date
- 2026-04-13
- Publication Date
- 2026-06-09
AI Technical Summary
Existing load-loading devices are unable to securely clamp rod-like and fork-like components of different sizes, resulting in poor clamping performance, easy loosening, and a lack of safety protection, posing safety hazards.
A simulated fork-type and rod-type load loading device was designed, comprising a clamping structure assembly and an adjustment mechanism. The clamping structure assembly consists of a support column, a limiting mounting structure, a moving ring, and a compression frame, which achieves stable clamping of the sample under test. The adjustment mechanism enables rapid adjustment through a threaded rod and a handwheel. The protective structure provides safety protection through a locking seat and an observation plate.
It achieves stable clamping of test samples of different sizes, improves testing accuracy and safety, avoids loose clamping and equipment damage, and ensures the safety of operators.
Smart Images
Figure CN122171202A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive testing technology, and in particular to a device for simulating load loading of forks and rods. Background Technology
[0002] Tie rods, tie bars, and other rod-like components, as well as universal joint forks, steering knuckle forks, and other joint-like components, are key force transmission components in automotive steering transmission mechanisms. To ensure the safety and reliability of vehicle operation, various simulated load tests need to be conducted on these rod-like components and joint-like components during vehicle research and development and manufacturing to obtain optimal operating parameters.
[0003] Currently, existing load simulation devices typically include components such as a magnetic particle brake, a reducer, a connecting fixture, tension / compression sensors, a connecting rod, a programmable power supply, a CANFD, a battery, and a capacitor. During testing, the magnetic particle brake is connected to the reducer via a coupling. The test sample, such as a rod-like or fork-like component, is connected to the connecting rod and fixed by the connecting fixture. When loading is applied, the tension / compression sensors mounted on the connecting rod record the tension / compression values of the rod, providing a highly repeatable and fast-responding pulse force to the test sample. During operation, it provides corresponding real-time changing loads when the sample is in different positions.
[0004] However, in practical use, the aforementioned existing technologies have several problems: First, due to the inconsistent dimensions of different rod-like and fork-like components, existing devices typically employ ordinary rigid clamping structures, which are difficult to effectively fit the shapes of test samples of different sizes. This leads to unstable clamping, poor clamping effect, and easy loosening of these test samples, affecting testing accuracy and stability. Second, in existing technologies, when testing test samples of different models and lengths, it is impossible to achieve rapid and accurate switching and installation adjustment, resulting in installation limitations and mismatches. This makes it easy for the tension / compression sensor and connecting rod to break apart and be damaged when the tension / compression sensor detects tension through pulling force, and also easily leads to safety issues such as accidental injury to workers. Third, during the testing process, the tension / compression sensor and connecting rod will be subjected to large tensile forces, and existing devices lack effective safety protection measures. Once the tension / compression sensor and connecting rod break apart or break, it is very easy to accidentally injure operators, posing a significant safety hazard. Summary of the Invention
[0005] The purpose of this application is to provide a simulated load loading device for fork-type and rod-type components, so as to solve the technical problems of unstable clamping, poor clamping effect, and easy loosening of rod-type and fork-type components during load loading tests in the prior art.
[0006] This application provides a simulated fork-type and rod-type load loading device, including a reducer and a connecting rod. One end of the connecting rod is fixed by a connecting clamp, and the other free end is used to connect to the test sample. It also includes: A clamping structure assembly is provided on one side adjacent to the free end of the connecting rod, and there is an interval space between the free end of the connecting rod and the clamping structure assembly for mounting the sample under test; The clamping structure assembly includes: a longitudinally extending support column; and A limiting installation structure is fixedly installed on the side of the support column facing the free end of the connecting rod, for limiting connection and fixing with the mounting bracket provided at one end of the test sample; A movable ring is located below the limiting installation structure and is movably connected to the support column. A support plate is fixedly provided on one side of the movable ring, extending horizontally downward toward the sample under test. An auxiliary limiting plate, located above the limiting mounting structure and fixed to the support column, has a limiting threaded through hole extending longitudinally, the longitudinal projection of which falls on the surface of the support plate; and A first threaded rod is movably connected in the limiting threaded through hole along the longitudinal direction, and a pressing frame is movably connected to the bottom end of the first threaded rod. The test sample is correspondingly arranged below the pressing frame, and the pressing frame can press and clamp onto the outer periphery of the test sample.
[0007] Furthermore, a limiting rod extending longitudinally is fixedly provided at the top of the support plate, and a limiting through hole is provided at a corresponding position on the extrusion frame to allow the limiting rod to pass through, so that the extrusion frame can move up and down along the longitudinal extension direction of the limiting rod.
[0008] Furthermore, the extrusion frame is configured as a figure-eight shaped extrusion plate extending downwards and toward opposite sides, and the limiting through hole is provided on one side of the inclined plate of the figure-eight shaped extrusion plate.
[0009] Furthermore, the limiting installation structure includes: a rotating seat rotatably connected to the outer wall of the free end of the support column facing the connecting rod, and a limiting frame connected to the rotating seat. The limiting frame cooperates with the mounting frame provided at the end of the test sample to mutually limit and fix each other.
[0010] Furthermore, a threaded ring is fitted onto the outer side of the support column, the bottom of the movable ring is connected and fixed to the top of the threaded ring, and correspondingly, the outer circumferential surface of the lower middle part of the support column is provided with a threaded connection surface.
[0011] Furthermore, the simulated fork-type or rod-type load loading device also includes an adjustment mechanism, which comprises: A base, and two second threaded rods embedded in the bottom of the base and extending sequentially along its length, and two nut sleeves fitted onto the two second threaded rods; handwheels are respectively exposed on opposite sides of the base, one handwheel being fixedly connected to one end of one of the second threaded rods, and the other handwheel being fixedly connected to one end of the other second threaded rod; and Two base plates are respectively fixedly connected to the two nut sleeves. The reducer and the connecting clamp are fixed to one of the base plates by a mounting plate. The bottom of the support column of the clamping structure assembly is fixed to the other base plate.
[0012] Furthermore, the adjustment mechanism also includes: two adjustment plates respectively disposed above the two base plates, with movable sleeves extending longitudinally and opening downwards fixed at the four corners of the lower bottom surface of the adjustment plates, and a threaded sleeve extending longitudinally and opening downwards in the middle, the side wall of the threaded sleeve being provided with a tool groove for inserting a tool bar; Correspondingly, fixed posts extending longitudinally are provided at the four corners of the top surface of the two base plates, and threaded posts extending longitudinally are provided in the middle. Each movable sleeve is fitted onto the outside of each fixed post and can be movably connected to it. The threaded sleeve is threadedly connected to the outer periphery of the threaded post.
[0013] Furthermore, the simulated fork-type or rod-type load loading device also includes a protective structure disposed on the base, which includes: A first engaging seat, a rotating fixing seat, and a second engaging seat are sequentially spaced apart on the upper surface of one side edge along the length of the base, with the distance between the first engaging seat and the rotating fixing seat being equal to the distance between the second engaging seat and the rotating fixing seat. The rotating fixing seat and the second engaging seat are located on opposite sides of the free end of the connecting rod. The observation plate has a longitudinally extending rotating shaft and a longitudinally extending locking rod at opposite ends of its bottom edge. The rotating shaft is rotatably connected and fixed to the rotating fixed seat, and the locking rod can be engaged and fixed with the first locking seat and the second locking seat; and The top plate has its bottom edge connected to the top edge of the observation plate. When the snap-fit rod of the observation plate is snapped and fixed to the second snap-fit seat, the top plate extends horizontally above the free end of the connecting rod and has a safe protective distance from the connecting rod.
[0014] Furthermore, the rotating fixed seat is embedded with a rotating bearing, and the rotating shaft is rotatably connected and fixed in the rotating bearing, and can rotate circumferentially along the horizontal plane; and / or The first card holder and the second card holder are embedded with card blocks that open to the outside, and the inner wall of the card blocks is provided with magnetic stickers.
[0015] Furthermore, the bottom edge of the top plate is movably connected to the top edge of the observation plate via a hinge; and / or It also includes a clamping plate frame with one end rotatably connected and fixed to one side of the observation plate; correspondingly, a positioning block is provided on the same side of the top plate and the observation plate for engaging and fixing with the other end of the clamping plate frame; and / or The observation plate and the top plate are made of polycarbonate. The inner wall of the top plate is provided with a transparent rubber pad, which is fixedly connected to the top plate with glue.
[0016] Compared with the prior art, the simulated fork-type or rod-type load loading device provided in this application may include a clamping structure assembly disposed adjacent to the free end of the connecting rod, and there is an interval space between the free end of the connecting rod and the clamping structure assembly for mounting the test sample; the clamping structure assembly may specifically include: a longitudinally extending support column; and a limiting mounting structure fixedly disposed on the side of the support column facing the free end of the connecting rod, for limiting connection and fixing with a mounting bracket disposed at one end of the test sample; and a movable ring located below the limiting mounting structure and movably connected to the support column. The movable ring has a support plate fixedly installed on one side, extending horizontally downward toward the sample under test; and an auxiliary limiting plate located above the limiting installation structure and fixed to the support column. The auxiliary limiting plate has a limiting threaded through hole with an opening extending longitudinally, and the longitudinal projection of the limiting threaded through hole can fall on the plate surface of the support plate below; and a first threaded rod movably connected longitudinally in the limiting threaded through hole, and the bottom end of the first threaded rod is movably connected to a pressing frame. The lower part of the pressing frame is set corresponding to the sample under test, and the pressing frame can press and clamp onto the outer periphery of the sample under test.
[0017] In specific operation, depending on the size of the sample to be tested, the height of the support plate can be initially adjusted by using a movable ring that is movably connected to the support column. After adjustment, the sample to be tested can be placed on the support plate first, and then the mounting bracket at one end of the sample to be tested can be connected and fixed to the limiting mounting structure. At this time, the sample to be tested is placed below the extrusion frame. Rotate the first threaded rod to move it down, and drive the extrusion frame, which is movably connected to its bottom through the bearing, to move down. When the extrusion frame moves down, it contacts the sample to be tested, and as it moves down, it engages with the outside of the sample to be tested. At the same time, through clamping and extrusion force, the sample to be tested is effectively fitted, locked and fixed on the support plate.
[0018] This ensures that test samples of different sizes are effectively clamped and fixed, with good clamping effect and high reliability, solving the technical problems of unstable clamping, poor clamping effect and easy loosening of test samples during loading test in the existing technology. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the simulated segmental and rod-type load loading device provided in the embodiments of this application; Figure 2 This is a schematic diagram showing the connection between the clamping structure assembly provided in the embodiment of this application and the sample under test. Figure 3 This is a schematic diagram of the clamping structure assembly provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the first threaded rod and the extrusion frame provided in the embodiments of this application; Figure 5 This is a partial structural schematic diagram of the clamping structure assembly provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the base provided in the embodiment of this application; Figure 7 A schematic diagram of the base plate and the parts connected thereto provided in an embodiment of this application; Figure 8 This is a schematic cross-sectional view of the internal structure of the threaded sleeve and the fixed sleeve provided in the embodiments of this application; Figure 9 This is a partial structural schematic diagram of the simulated joint-type and rod-type load loading device provided in the embodiments of this application; Figure 10 This is an enlarged schematic diagram showing some structural details of the observation plate and top plate provided in an embodiment of this application. Figure 11 This is a schematic diagram of the structure of the first locking seat and locking rod provided in the embodiments of this application; Figure 12 This is a schematic diagram of the rotating fixed base and rotating shaft provided in the embodiments of this application.
[0021] Figure label: 10-Clamping structure assembly; 11-Pillars; 111 - Threaded connection surface; 12-Rotating seat; 121-Limit bracket; 13-Moving ring; 131-Support plate; 14-Threaded ring; 15-Auxiliary limit plate; 151 - Limiting threaded through hole; 16 - First threaded rod; 17-Extrusion rack; 171 - Limiting via; 18-Limit rod; 21-Base; 22-Second threaded rod; 221-Nut sleeve; 222-Handwheel; 23-Base plate; 231-Fixed Post; 232-Threaded post; 24 - Adjustment plate; 241 - Moving sleeve; 242-Threaded sleeve; 2421 - Tool slot; 243 - Toolbar; 25 - Mounting plate; 30 - Protective structure; 31-First card seat; 311 - First Card Block; 312 - Magnetic Sticker; 32-Second card slot; 321 - Second Card Block; 33-Rotating fixed seat; 331 - Rotary bearing; 34 - Observation board; 341 - Shaft; 342-Clip rod; 35-Top plate; 351 - Transparent rubber pad; 36-Hinges; 37-Packet rack; 201-Gear reducer; 202-Connecting clamp; 203 - Connecting rod; 2031 - Fixed connection end; 2032 - Free End; 204-Magnetic Powder Brake; 205 - Coupling; 206 - Tension / Compression Sensor; 300 - The sample being tested; 301 - Mounting bracket. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0025] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0029] like Figure 1 and Figure 9 As shown, this application embodiment provides a simulated fork-type and rod-type load loading device, including a reducer 201, a magnetic powder brake 204 connected to the reducer 201 via a coupling 205, a connecting clamp 202, a connecting rod 203 fixedly connected to the connecting clamp 202, and a tension / compression sensor 206 installed on the connecting rod 203 for recording the tension / compression value of the connecting rod 203.
[0030] The two ends of the connecting rod 203 are a fixed connection end 2031 that is fixed to the connecting clamp 202 and a free end 2032 that extends parallel to the connection of the test sample 300. Specifically, the test sample 300 is a rod-like component such as a horizontal tie rod or a straight tie rod, or a joint-like component such as a universal joint or a steering joint. The two ends of the test sample 300 can be respectively equipped with mounting brackets 301 for fixed installation connection. The free end 2032 of the connecting rod 203 can be assembled and fixedly connected with the mounting bracket 301 provided at one end of the test sample 300.
[0031] Optionally, the bottom of the reducer 201 may be fixedly connected to a mounting plate 25, and the connecting clamp 202 may be located on one side of the reducer 201 and fixedly connected to the mounting plate 25 at its bottom.
[0032] like Figures 1 to 8 As shown, the simulated fork-type and rod-type load loading device provided in this application embodiment may further include a clamping structure component 10. The clamping structure component 10 is disposed on the side adjacent to the free end 2032 of the connecting rod 203, and there is a gap between the free end 2032 of the connecting rod 203 and the clamping structure component 10 for placing and installing the test sample 300.
[0033] Specifically, the clamping structure assembly 10 may include: a longitudinally extending support column 11; and a limiting mounting structure fixedly disposed on the side of the support column 11 facing the free end 2032 of the connecting rod 203, the limiting mounting structure being used for limiting connection and fixation with the mounting bracket 301 disposed at one end of the test sample 300; and a movable ring 13 located below the limiting mounting structure and movably connected to the support column 11, one side of the movable ring 13 being fixedly disposed with a support plate 131 extending horizontally downward toward the test sample 300; and a support plate 131 located below the limiting mounting structure. Above the support plate 11, an auxiliary limiting plate 15 is fixed to the support plate 11. The auxiliary limiting plate 15 has a limiting threaded through hole 151 extending longitudinally, and the projection of the limiting threaded through hole 151 along the longitudinal direction can fall on the plate surface of the support plate 131 below. A first threaded rod 16 is movably connected in the limiting threaded through hole 151 along the longitudinal direction, and the bottom end of the first threaded rod 16 is movably connected to a pressing frame 17. The sample to be tested 300 is correspondingly arranged below the pressing frame 17, and the pressing frame 17 can press and clamp the sample to be tested 300 on the outer periphery.
[0034] Compared with the prior art, the clamping structure assembly 10 provided in this application embodiment can, in specific operation, adjust the height of the support plate 131 by first fitting a movable ring 13 connected to the support column 11 according to the size of the sample 300 being tested. After adjustment, the sample 300 being tested can be placed on the support plate 131. Then, the mounting bracket 301 at one end of the sample 300 being tested is connected and fixed to the limiting mounting structure. At this time, the sample 300 being tested is placed below the extrusion frame 17. The first threaded rod 16 is rotated and moved down, which drives the extrusion frame 17, which is movably connected to its bottom through the bearing, to move down. When the extrusion frame 17 moves down, it contacts the sample 300 being tested and, as it moves down, engages with the outside of the sample 300 being tested. At the same time, through clamping and extrusion force, the sample 300 being tested is effectively fitted, locked, and fixed on the support plate 131.
[0035] This configuration ensures that test samples 300 of different sizes and shapes can be effectively clamped and fixed, resulting in good clamping effect and high reliability. It solves the technical problems of unstable clamping, poor clamping effect and easy loosening of test samples 300 during loading tests in existing technologies, thus ensuring test accuracy and stability.
[0036] like Figures 2 to 4As shown, in a preferred embodiment, a limiting rod 18 can be fixedly provided at the top of the support plate 131. The limiting rod 18 extends longitudinally, and a limiting through hole 171 is provided at a corresponding position on the extrusion frame 17, allowing the limiting rod 18 to pass through longitudinally. This limits the extrusion frame 17 to move up and down along the longitudinal extension direction of the limiting rod 18. This further ensures that the extrusion frame 17 can only move up and down longitudinally and moves precisely downward toward the surface of the support plate 131, ensuring the extrusion and fixation of the sample 300 under test.
[0037] In one optional embodiment, the extrusion frame 17 can be specifically configured as a figure-eight shaped extrusion plate extending downwards and to opposite sides, with the limiting through hole 171 provided on one side of the inclined plate of the figure-eight shaped extrusion plate. During the continuous downward movement of this figure-eight shaped extrusion plate, due to the characteristics of the force direction exerted on the test sample 300 by the two outwardly extending inclined plates, it can effectively fit against test samples 300 of different sizes and shapes, and continuously extrude, clamp, and fix them to the support plate 131.
[0038] like Figure 2 , Figure 3 and Figure 5 As shown, regarding the aforementioned limiting installation structure, a specific embodiment includes a rotating base 12 and a limiting frame 121 connected to the rotating base 12. The rotating base 12 is rotatably connected to the outer wall of the support column 11 on the side facing the free end 2032 of the connecting rod 203. The limiting frame 121 can be matched with the mounting bracket 301 provided at one end of the test sample 300, so that it can be mutually limited and fixedly connected with the mounting bracket 301. Preferably, the two are connected by a sliding connection such as fitting or snap-fit. Furthermore, the position of the limiting frame 121 can be adjusted according to the specific position of the mounting bracket 301 of the test sample 300. Specifically, the position of the limiting frame 121 can be adjusted by rotating the rotating base 12.
[0039] In a further embodiment, a threaded ring 14 may be fitted onto the outer side of the support column 11. The bottom of the movable ring 13 is connected and fixed to the top of the threaded ring 14. Correspondingly, a threaded connection surface 111 may be provided on the lower middle outer circumferential surface of the support column 11 for threaded connection with the threaded ring 14, and can move upward a certain distance, thereby realizing the vertical adjustment of the height position of the support plate 131. This threaded connection and movement method can ensure the reliability of the connection and fixation, and facilitate the direct adjustment of the height of the support plate 131 on site.
[0040] like Figures 6 to 8As shown, the simulated fork-type and rod-type load loading device provided in this application embodiment may further include an adjustment mechanism. This adjustment mechanism may include a base 21, two second threaded rods 22 embedded in the bottom of the base 21 and extending sequentially along its length, and two nut sleeves 221 respectively fitted onto the two second threaded rods 22. Handwheels 222 are exposed on opposite sides of the base 21, one handwheel 222 being fixedly connected to the end of one second threaded rod 22 closest to it, and the other handwheel 222 being fixedly connected to the end of the other second threaded rod 22 closest to it.
[0041] The adjustment mechanism also includes two base plates 23 that are fixedly connected to the two nut sleeves 221 respectively. The bottom of the mounting plate 25 that mounts and fixes the reducer 201 and the connecting clamp 202 is fixedly connected to one of the base plates 23. The bottom of the support column 11 of the aforementioned clamping structure assembly 10 is fixedly connected to the other base plate 23.
[0042] When testing different models and lengths of test specimens 300, the lateral distance between the two base plates 23 can be adjusted based on the distance between the mounting bracket 301 installed at the other end of the test specimen 300 (i.e., the mounting bracket 301 used to connect to the free end 2032 of the connecting rod 203) and the connecting rod 203. Specifically, this can be achieved by turning two handwheels 222, which in turn turns two second threaded rods 22, thereby moving two nut sleeves 221 on the two second threaded rods 22 respectively, thus adjusting the lateral distance between the two base plates 23. This allows for quick adjustment of the lateral distance between the test specimen 300 and the connecting clamp 202 after switching, enabling rapid adjustment of the lateral distance between the connecting rod 203 and the limiting frame 121 of the clamping structure assembly 10 when switching the installation of the test specimen 300.
[0043] Based on the previous embodiment, the adjustment mechanism may further include: two adjustment plates 24 respectively disposed above the two base plates 23, each of the four corners of the lower bottom surface of the two adjustment plates 24 being fixedly provided with a movable sleeve 241 extending longitudinally and opening downwards, and a threaded sleeve 242 extending longitudinally and opening downwards being provided in the middle, and the side wall of the threaded sleeve 242 being provided with at least one tool groove 2421 for inserting a tool bar 243. For example, preferably, the side wall of the threaded sleeve 242 may be provided with four tool grooves 2421 evenly spaced along its circumference.
[0044] Correspondingly, each of the four corners of the top surface of the two base plates 23 can be provided with a fixed post 231 extending longitudinally, and a threaded post 232 extending longitudinally is provided in the middle. Each movable sleeve 241 is respectively fitted around each fixed post 231 and can be moved up and down and movably connected. The threaded sleeve 242 is fitted and threadedly connected to the outer periphery of the threaded post 232.
[0045] In the aforementioned embodiment, after quickly adjusting the lateral distance between the test sample 300 and the connecting clamp 202 and determining the lateral distance, stop tightening the second threaded rod 22. Then, adjust the horizontal height between the test sample 300 and the connecting pull rod 203 to be consistent. Specifically, the tool bar 243 can be inserted into the tool groove 2421 on the outer wall of the threaded sleeve 242. The tool bar 243 drives the threaded sleeve 242 to move upward along the threaded post 232, and drives the adjusting plate 24 to move upward through the bearing at the top. At the same time, the adjusting plate 24 moves upward in the four movable sleeves 242. The longitudinal limit of 41 and the four fixed columns 231 can be moved longitudinally, thereby realizing the height adjustment of the two adjusting plates 24, and thus realizing the rapid adjustment of the height position of the reducer 201, the connecting rod 203 and the clamping structure assembly 10. Specifically, the connecting rod 203 and the test sample 300 can be at the same horizontal height position, so that when switching different models of test samples 300, the connecting rod 203 and the test sample 300 can be quickly adjusted to be at the same horizontal height position, so that the test sample 300 and the connecting rod 203 can be effectively connected.
[0046] This solves the problem in the prior art that it is impossible to quickly and accurately switch the installation and adjustment when testing different models and lengths of test samples. It also solves the problems of installation limitations and mismatch. The embodiment of this application realizes the effective matching and installation connection between the test sample 300 and the connecting rod 203, effectively avoiding the problem of the tension and pressure sensor 206 and the connecting rod 203 breaking apart and being damaged when the tension and pressure sensor 206 detects the tension by pulling force.
[0047] like Figures 9 to 12 As shown, the simulated fork-type and rod-type load loading device provided in this application embodiment may further include a protective structure 30 disposed on the base 21. The protective structure 30 may include: a first locking seat 31, a rotating fixing seat 33, and a second locking seat 32 disposed on the upper end surface of one side edge in the length direction of the base 21 and arranged sequentially at intervals. The distance between the first locking seat 31 and the rotating fixing seat 33 is equal to the distance between the second locking seat 32 and the rotating fixing seat 33. The rotating fixing seat 33 and the second locking seat 32 are respectively located on both sides of the free end 2032 of the connecting rod 203.
[0048] The protective structure 30 also includes an observation plate 34. The bottom edge of the observation plate 34 is provided with a rotating shaft 341 extending longitudinally and a locking rod 342 extending longitudinally at opposite ends. The rotating shaft 341 is rotatably connected and fixed to the rotating fixed seat 33, and the locking rod 342 can be locked and fixed to the first locking seat 31 and the second locking seat 32.
[0049] The protective structure 30 also includes a top plate 35, the bottom edge of which is connected to the top edge of the observation plate 34, such as... Figure 10 As shown, the two can be movably connected via hinge 36. When the locking rod 342 of the observation plate 34 is locked and fixed to the second locking seat 32, that is, when the observation plate 34 faces the connection position between the connecting rod 203 and the test sample 300, i.e., when it is in the protective position, the top plate 35 extends horizontally above the free end 2032 of the connecting rod 203 and has a safe protective distance between it and the connecting rod 203. Thus, when in the protective position, the observation plate 34 and the top plate 35 are respectively located at the lateral position and the upper position of the connection position between the connecting rod 203 and the test sample 300, so that the observation plate 34 and the top plate 35 form a double-sided protection, achieving effective safety protection. This can effectively prevent the connecting rod 203 and the tension / compression sensor 206 from breaking open and injuring people, thus improving safety protection.
[0050] Specifically, one alternative embodiment is, as follows: Figure 12 As shown, a rotating bearing 331 can be embedded in the rotating fixed base 33, and the rotating shaft 341 is rotatably connected and fixed in the rotating bearing 331, and can rotate circumferentially along the horizontal plane.
[0051] Another alternative embodiment is, as follows: Figure 11 As shown, the first locking seat 31 and the second locking seat 32 may be fitted with locking blocks that open to the outside, specifically the first locking block 311 and the second locking block 321. Furthermore, to further improve the locking stability, the inner wall of the locking blocks (the first locking block 311 and the second locking block 321) may be provided with magnetic adhesive 312. Correspondingly, the locking rod 342 on the bottom edge of the observation plate 34 has magnetic iron sheets or is made of ferrous metal at the corresponding locking positions of the first locking block 311 and the second locking block 321.
[0052] Thus, when the test sample 300 and the connecting rod 203 are not yet connected and matched, or when the simulated load loading device is not in working condition, the snap-fit rod 342 of the observation plate 34 can be snapped into the first snap-fit seat 31. At this time, the observation plate 34 is located on the side close to the connecting clamp 202.
[0053] After the sample 300 is connected to the connecting rod 203, the side of the observation plate 34 connected to the locking rod 342 can be pulled outward to disengage the locking rod 342 from the first engagement seat 31. Continue pulling the observation plate 34 outward to rotate it. Simultaneously, the rotating shaft 341 on the bottom edge of the other side of the observation plate 34 rotates 180° horizontally in the rotating fixed seat 33, causing the observation plate 34 to rotate 180°. Then, push the observation plate 34 to insert its locking rod 342 into the second engagement seat 32, simultaneously causing the locking rod 342 to... The magnetic adhesive 312 is used to fix the observation plate 34 to one side of the connection position between the free end 2032 of the connecting rod 203 and the mounting bracket 301 of the sample under test 300. Then, the top plate 35 is pulled and rotated through the hinge 36 to the position above the connection position between the connecting rod 203 and the sample under test 300. The clamping plate frame 37 can be engaged with the positioning block on the top plate 35. At this time, the observation plate 34 and the top plate 35 form a double-sided protection, which can effectively prevent the connecting rod 203 and the sample under test 300 from breaking apart.
[0054] Among them, such as Figure 1 As shown, the protective structure 30 may also include a clamping plate frame 37 with one end rotatably connected and fixed to one side of the observation plate 34. Correspondingly, the top plate 35 and the observation plate 34 are provided with positioning blocks on the same side for engaging and fixing with the other end of the clamping plate frame 37, thereby improving the stability of the top plate support connection.
[0055] In one optional embodiment, both the observation plate 34 and the top plate 35 can be made of polycarbonate. The observation plate 34 and the top plate 35 made of polycarbonate have strong impact resistance and good transparency, which not only provide protection but also facilitate real-time observation.
[0056] Furthermore, such as Figure 9 As shown, a transparent rubber pad 351 can be provided on the inner wall of the top plate 35, and the transparent rubber pad 351 can be fixedly connected to the top plate 35 with glue. If the connecting rod 203 or the tension / compression sensor 206 suddenly breaks apart during the test, it will impact the top plate 35 at high speed. At this time, the transparent rubber pad 351 will first bear the impact, using its own elastic deformation to absorb kinetic energy, preventing the top plate 35 from directly bearing the hard impact, reducing the risk of the top plate 35 breaking, and at the same time slowing down the rebound force to prevent secondary damage.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A device for simulating loads of fork-type or rod-type components, comprising a reducer and a connecting rod, wherein one end of the connecting rod is fixed by a connecting clamp, and the other free end is used to connect to the sample to be tested, characterized in that... Also includes: A clamping structure assembly is provided on one side adjacent to the free end of the connecting rod, and there is an interval space between the free end of the connecting rod and the clamping structure assembly for mounting the sample under test; The clamping structure assembly includes: a longitudinally extending support column; and A limiting installation structure is fixedly installed on the side of the support column facing the free end of the connecting rod, for limiting connection and fixing with the mounting bracket provided at one end of the test sample; A movable ring is located below the limiting installation structure and is movably connected to the support column. A support plate is fixedly provided on one side of the movable ring, extending horizontally downward toward the sample under test. An auxiliary limiting plate, located above the limiting mounting structure and fixed to the support column, has a limiting threaded through hole extending longitudinally, the longitudinal projection of which falls on the surface of the support plate; and A first threaded rod is movably connected in the limiting threaded through hole along the longitudinal direction, and a pressing frame is movably connected to the bottom end of the first threaded rod. The test sample is correspondingly arranged below the pressing frame, and the pressing frame can press and clamp onto the outer periphery of the test sample.
2. The simulated joint-type and rod-type load loading device according to claim 1, characterized in that, The top of the support plate is fixedly provided with a limiting rod extending longitudinally, and the corresponding position on the extrusion frame is provided with a limiting through hole that allows the limiting rod to pass through, so that the extrusion frame can move up and down along the longitudinal extension direction of the limiting rod.
3. The simulated joint-type and rod-type load loading device according to claim 2, characterized in that, The extrusion frame is configured as a figure-eight shaped extrusion plate extending downwards and toward opposite sides, and the limiting through hole is provided on one side of the inclined plate of the figure-eight shaped extrusion plate.
4. The simulated joint-type and rod-type load loading device according to claim 1, characterized in that, The limiting installation structure includes: a rotating seat rotatably connected to the outer wall of the free end of the support column facing the connecting rod, and a limiting frame connected to the rotating seat. The limiting frame cooperates with the mounting frame provided at the end of the sample to be tested, and can be mutually limited and fixedly connected.
5. The simulated joint-type and rod-type load loading device according to claim 1, characterized in that, A threaded ring is also fitted on the outer side of the support column. The bottom of the movable ring is connected and fixed to the top of the threaded ring. Correspondingly, the outer circumferential surface of the lower middle part of the support column is provided with a threaded connection surface.
6. The simulated joint-type or rod-type load loading device according to any one of claims 1 to 5, characterized in that, It also includes a regulating mechanism, which includes: A base, and two second threaded rods embedded in the bottom of the base and extending sequentially along its length, and two nut sleeves fitted onto the two second threaded rods; handwheels are respectively exposed on opposite sides of the base, one handwheel being fixedly connected to one end of one of the second threaded rods, and the other handwheel being fixedly connected to one end of the other second threaded rod; and Two base plates are respectively fixedly connected to the two nut sleeves. The reducer and the connecting clamp are fixed to one of the base plates by a mounting plate. The bottom of the support column of the clamping structure assembly is fixed to the other base plate.
7. The simulated joint-type and rod-type load loading device according to claim 6, characterized in that, The adjustment mechanism further includes: two adjustment plates respectively disposed above the two base plates, and movable sleeves extending longitudinally and opening downwards are fixedly provided at the four corners of the lower bottom surface of the adjustment plates, and threaded sleeves extending longitudinally and opening downwards are provided in the middle, and tool grooves are provided on the side walls of the threaded sleeves for inserting tool strips. Correspondingly, fixed posts extending longitudinally are provided at the four corners of the top surface of the two base plates, and threaded posts extending longitudinally are provided in the middle. Each movable sleeve is fitted onto the outside of each fixed post and can be movably connected to it. The threaded sleeve is threadedly connected to the outer periphery of the threaded post.
8. The simulated joint-type and rod-type load loading device according to claim 6, characterized in that, It also includes a protective structure disposed on the base, which comprises: A first engaging seat, a rotating fixing seat, and a second engaging seat are sequentially spaced apart on the upper surface of one side edge along the length of the base, with the distance between the first engaging seat and the rotating fixing seat being equal to the distance between the second engaging seat and the rotating fixing seat. The rotating fixing seat and the second engaging seat are located on opposite sides of the free end of the connecting rod. The observation plate has a longitudinally extending rotating shaft and a longitudinally extending locking rod at opposite ends of its bottom edge. The rotating shaft is rotatably connected and fixed to the rotating fixed seat, and the locking rod can be engaged and fixed with the first locking seat and the second locking seat; and The top plate has its bottom edge connected to the top edge of the observation plate. When the snap-fit rod of the observation plate is snapped and fixed to the second snap-fit seat, the top plate extends horizontally above the free end of the connecting rod and has a safe protective distance from the connecting rod.
9. The simulated joint-type and rod-type load loading device according to claim 8, characterized in that, The rotating fixed seat is equipped with a rotating bearing, and the rotating shaft is rotatably connected and fixed in the rotating bearing, and can rotate circumferentially along the horizontal plane; and / or The first card holder and the second card holder are embedded with card blocks that open to the outside, and the inner wall of the card blocks is provided with magnetic stickers.
10. The simulated joint-type or rod-type load loading device according to claim 8 or 9, characterized in that, The bottom edge of the top plate is movably connected to the top edge of the observation plate via a hinge; and / or It also includes a clamping plate frame with one end rotatably connected and fixed to one side of the observation plate; correspondingly, a positioning block is provided on the same side of the top plate and the observation plate for engaging and fixing with the other end of the clamping plate frame; and / or The observation plate and the top plate are made of polycarbonate. The inner wall of the top plate is provided with a transparent rubber pad, which is fixedly connected to the top plate with glue.