Fatigue testing device for yoke plate

Abstract

The utility model discloses a yoke plate fatigue testing device, which belongs to the technical field of yoke plate testing, and comprises two supporting assemblies, a connecting rod, a connecting rod and a connecting rod, and is characterized in that the two supporting assemblies are mutually connected with a shock absorber hoop sleeve on a yoke plate and used for supporting the yoke plate from the lower part of the yoke plate; the downward pressing assembly is connected with the directional vertical shaft connecting sleeve on the yoke plate and used for applying interval abutting force to the yoke plate from the upper portion of the yoke plate; wherein the supporting assembly and the pressing assembly are fixedly connected with fixing assemblies used for fixing the yoke plate, the fixing assemblies can abut against and fix the yoke plate when bearing abutting force from the yoke plate, the yoke plate is fixed by the elastic piece through the abutting force borne by the yoke plate in the testing process, the yoke plate can be conveniently taken and placed, and the testing efficiency is improved. Meanwhile, the yoke plate is stably fixed in the testing process, and the accuracy of a testing result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of joint plate testing, in particular to a joint plate fatigue testing device. Background Art

[0002] During the production and testing of joint plates, fatigue testing of the joint plates is a crucial step. Traditional joint plate fatigue testing devices often have problems with fixing the joint plates, such as complex operation, poor fixing effect, or damage to the joint plates.

[0003] Existing coupling plate fatigue testing devices typically include a support assembly and a hold-down assembly, which provide support and a clamping force from below and above the coupling plate, respectively. However, these devices often use rigid connections or complex fixing mechanisms to secure the coupling plate, making operation inconvenient and making it difficult to ensure the coupling plate's stability during testing.

[0004] In order to solve the above problems, the utility model provides a joint plate fatigue testing device. Utility Model Content

[0005] In response to the above-mentioned technical deficiencies, the purpose of the present invention is to provide a connecting plate fatigue testing device, which uses the pressing force applied to the connecting plate during the test to prompt the elastic member to fix the connecting plate, making it easy to remove and place the connecting plate, and stably fix the connecting plate during the test to ensure the accuracy of the test results.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a joint plate fatigue testing device, comprising:

[0007] Two support assemblies, the two support assemblies are connected to the shock absorber clamp sleeves on the connecting plate, and are used to support the connecting plate from below;

[0008] A pressing assembly, which is connected to the directional vertical shaft connecting sleeve on the connecting plate and is used to apply a spaced pressing force to the connecting plate from above;

[0009] Wherein, the supporting assembly and the pressing assembly are both fixedly connected with a fixing assembly for fixing the connecting plate. When the fixing assembly is subjected to a pressing force from the connecting plate, the connecting plate will be pressed and fixed.

[0010] Preferably, the fixing assembly comprises:

[0011] A base shaft, wherein a cavity is provided inside the base shaft, and a plurality of through grooves and a plurality of connecting grooves are provided on the sidewall of the cavity;

[0012] A sliding sleeve, wherein the sliding sleeve is slidably connected to the outer side of the base shaft;

[0013] A fixing ring, the fixing ring being fixedly connected to the outer side of the base shaft;

[0014] The elastic member is installed inside the cavity and is connected to the sliding sleeve. When the sliding sleeve is subjected to the pressing force from the connecting plate, the elastic member will be elastically deformed and pass through the through groove to press against the connecting plate.

[0015] Preferably, the elastic member comprises:

[0016] A plurality of elastic rods, the plurality of elastic rods being evenly distributed inside the cavity along the circumference of the base shaft, one end of the elastic rod being a floating end and the other end being a fixed end, the fixed end of the elastic rod being fixedly connected to an inner side wall of the cavity away from the connecting plate;

[0017] A pull rod, one end of which is fixedly connected to the floating end of the spring rod, and the other end of which is connected to the sliding sleeve via a connecting rod;

[0018] The elastic rod is matched with the through slot, and the connecting rod is matched with the connecting slot.

[0019] Preferably, the support assembly comprises:

[0020] An outer sleeve, wherein the outer sleeve is a sleeve with an open upper end;

[0021] The inner rod is slidably installed inside the outer sleeve along the axial direction of the outer sleeve, and the outer end of the inner rod is connected to the corresponding fixing component, and a spring is connected between the inner end and the inner side wall of the outer sleeve.

[0022] Preferably, the pressing assembly includes: a connecting seat, the connecting seat and the corresponding fixing assembly are interconnected, and the connecting seat is connected to the output shaft of the electric push rod.

[0023] The beneficial effects of the present invention are:

[0024] The utility model realizes that the elastic member will not be deformed when the connecting plate is not subjected to the tightening force through the cooperation of the base shaft, the sliding sleeve and the elastic member, which makes it convenient for the staff to take and place the connecting plate. When the connecting plate is subjected to the tightening force, the sliding sleeve will pull the floating end of the elastic rod through the connecting rod and the pull rod, thereby causing the elastic member to produce corresponding elastic deformation, tightening and fixing the connecting plate. The utility model not only makes it convenient to take and place the connecting plate, but also can stably fix the connecting plate during the test, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A structural schematic diagram of a joint plate fatigue testing device provided in an embodiment of the present utility model.

[0027] Figure 2 This is a schematic diagram of the use state of the utility model.

[0028] Figure 3 This is a schematic diagram of the internal structure of the cavity of the utility model.

[0029] Figure 4 This is an exploded view of the sliding sleeve and the base shaft of the utility model.

[0030] Description of reference numerals:

[0031] 1. Base shaft, 2. Cavity, 3. Sliding sleeve, 4. Fixed ring, 5. Through groove, 6. Connecting groove, 7. Spring rod, 8. Pull rod, 9. Connecting rod, 10. Outer sleeve, 11. Inner rod, 12. Spring, 13. Connecting seat, 14. Electric push rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The utility model provides a joint plate fatigue testing device, such as Figures 1 to 4 shown.

[0034] Example 1:

[0035] A joint plate fatigue testing device includes two support components and a pressing component (in order to ensure integrity, the two support components and the pressing component can be fixedly connected to a base, such as Figure 1 and Figure 2 As shown), the support assembly and the downward pressure assembly are fixedly connected with a fixing assembly, the support assembly is connected to the shock absorber clamp sleeve on the connecting plate through the fixing assembly thereon, and the downward pressure assembly is connected to the direction vertical shaft connecting sleeve on the connecting plate through the fixing assembly thereon. The support assembly supports the connecting plate from the bottom of the connecting plate, and the downward pressure assembly applies an intermittent pressing force to the connecting plate from the top, that is, the downward pressure assembly continuously moves up and down to repeatedly press the connecting plate.

[0036] The pressing assembly includes a connecting seat 13, which is interconnected with the corresponding fixing assembly, and the connecting seat 13 is connected to the output shaft of the electric push rod 14. The output shaft of the electric push rod 14 can be extended and retracted to drive the connecting seat 13 to move up and down, thereby applying a downward pressing force to the connecting plates at intervals.

[0037] The fixing assembly includes a base shaft 1, which is adapted to the shock absorber clamp sleeve and the direction vertical shaft connecting sleeve on the connecting plate. When in use, the shock absorber clamp sleeve and the direction vertical shaft connecting sleeve can be respectively inserted into the outer side of the corresponding base shaft 1. A cavity 2 is provided inside the base shaft 1. The outer side surface of the base shaft 1 is slidably sleeved with a sliding sleeve 3 and fixedly connected with a fixing ring 4. The fixing ring 4 is located on the side surface of the base shaft 1 at one end away from the connecting plate. An elastic part is provided inside the cavity 2, and the elastic part and the sliding sleeve 3 are connected to each other. When the connecting plate is subjected to a tightening force, the sliding sleeve 3 will slide in the direction of the corresponding fixing ring 4, thereby causing the elastic part to produce elastic deformation. After the elastic deformation is produced, the elastic deformation will pass through the through groove 5 and press against the connecting plate, thereby fixing the connecting plate. The through groove 5 is opened on the side wall of the cavity 2.

[0038] The elastic member includes a plurality of elastic rods 7, which are evenly distributed inside the cavity 2 along the axial direction of the base shaft 1, and the number and position of the elastic rods 7 are adapted to the number and position of the through slots 5. One end of the elastic rod 7 is a floating end, and the other end is a fixed end. The fixed end is fixedly connected to the inner side wall of the end of the cavity 2 away from the connecting plate. The floating end of the elastic rod 7 is fixedly connected to the pull rod 8 provided inside the cavity 2, and the end of the pull rod 8 away from the corresponding floating end of the elastic rod 7 is fixedly connected to a connecting rod 9. The connecting rod 9 extends to the outside of the cavity 2 through the connecting groove 6 provided on the side wall of the cavity 2 and is fixedly connected to the corresponding sliding sleeve 3. When the connecting plate is subjected to a tightening force, the sliding sleeve 3 will be pushed to slide outside the base shaft 1, so that the elastic rod 7 can be pulled by the connecting rod 9 and the pull rod 8, so that the floating end of the elastic rod 7 moves downward to produce elastic deformation, and then the elastic rod 7 can be pressed against and fixed to the connecting plate.

[0039] Example 2:

[0040] Based on the first embodiment, in order to make the test results closer to the actual use situation, the support assembly can adopt the following settings:

[0041] The supporting assembly includes an outer sleeve 10 and an inner rod 11. The inner rod 11 is slidably mounted inside the outer sleeve 10 and can slide inside the outer sleeve 10 along the axial direction of the outer sleeve 10. The outer end of the inner rod 11 is connected to the corresponding base shaft 1, and a spring 12 is connected between the inner end and the inner side wall of the outer sleeve 10. One end of the spring 12 is fixedly connected to the end face of the inner rod 11, and the other end is fixedly connected to the inner side wall of the outer sleeve 10. The spring 12 can support the inner rod 11. During testing, the connecting plate will be subjected to the tightening force of the downward pressure assembly, which will cause the spring 12 to produce elastic deformation. The combination of the outer sleeve 10, the inner rod 11 and the spring 12 can simulate the shock absorber on the tricycle, so that the force condition of the connecting plate during testing can be close to the force condition during actual use, and then the test results can be closer to the actual use situation.

[0042] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A joint plate fatigue testing device, characterized in that: include: Two support assemblies, the two support assemblies are connected to the shock absorber clamp sleeves on the connecting plate, and are used to support the connecting plate from below; A pressing assembly, which is connected to the directional vertical shaft connecting sleeve on the connecting plate and is used to apply a spaced pressing force to the connecting plate from above; Wherein, the supporting assembly and the pressing assembly are both fixedly connected with a fixing assembly for fixing the connecting plate. When the fixing assembly is subjected to a pressing force from the connecting plate, the connecting plate will be pressed and fixed.

2. A joint plate fatigue testing device according to claim 1, characterized in that: The fixing assembly includes: A base shaft (1), wherein a cavity (2) is provided inside the base shaft (1), and a plurality of through grooves (5) and a plurality of connecting grooves (6) are provided on the side wall of the cavity (2); A sliding sleeve (3), wherein the sliding sleeve (3) is slidably sleeved on the outer side of the base shaft (1); A fixing ring (4), the fixing ring (4) being fixedly connected to the outside of the base shaft (1); An elastic member is installed inside the cavity (2) and is interconnected with the sliding sleeve (3). When the sliding sleeve (3) is subjected to a pressing force from the connecting plate, the elastic member is elastically deformed and passes through the through slot (5) to press against the connecting plate.

3. A joint plate fatigue testing device according to claim 2, characterized in that: The elastic member comprises: A plurality of elastic rods (7), wherein the plurality of elastic rods (7) are evenly distributed inside the cavity (2) along the circumference of the base shaft (1), one end of the elastic rod (7) is a floating end, and the other end is a fixed end, and the fixed end of the elastic rod (7) is fixedly connected to the inner side wall of the cavity (2) away from the connecting plate; A pull rod (8), one end of the pull rod (8) is fixedly connected to the floating end of the elastic rod (7), and the other end of the pull rod (8) is connected to the sliding sleeve (3) via a connecting rod (9); The elastic rod (7) is matched with the through groove (5), and the connecting rod (9) is matched with the connecting groove (6).

4. A joint plate fatigue testing device according to claim 1, characterized in that: The support assembly comprises: An outer sleeve (10), wherein the outer sleeve (10) is a sleeve with an open upper end; An inner rod (11) is slidably mounted inside the outer sleeve (10) along the axial direction of the outer sleeve (10), and an outer end of the inner rod (11) is connected to a corresponding fixing assembly, and a spring (12) is connected between the inner end and the inner side wall of the outer sleeve (10).

5. The joint plate fatigue testing device according to claim 1, characterized in that: The pressing assembly comprises a connecting seat (13), the connecting seat (13) and the corresponding fixing assembly are connected to each other, and the connecting seat (13) is connected to the output shaft of the electric push rod (14).

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