Tensile strength testing machine for high-strength bolt

Abstract

The utility model discloses a high-strength bolt tensile strength testing machine which comprises a testing machine main body, one side of the bottom end of a connecting ring is connected with a gear ring, the bottom end of the gear ring is connected with a protection plate, one side of the top end of the connecting ring is fixedly provided with a limiting plate, and the top end of the limiting plate is provided with a motor. The bottom end of the motor is connected with a shaft rod, one end of the shaft rod is connected with a gear plate, the gear plate is meshed with the gear ring, the gear transmission system can be driven through the motor, the protection plate is made to automatically move to the front end, and a placing opening of a bolt mold is completely shielded. The process is simple and convenient to operate, and the test safety and efficiency are greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of bolt testing machines, specifically a high-strength bolt tensile strength testing machine. Background Technology

[0002] Bolt tensile strength testing machines are key equipment for evaluating the mechanical properties of bolts. Traditional bolt tensile strength testing machines mainly consist of a lower bolt clamp and an upper bolt clamp, which work together to clamp and tensile test the bolt. The upper bolt clamp is usually fixed to ensure stability during tensile testing, while the lower bolt clamp is designed as a movable connection to accommodate testing bolts of different sizes. In practice, operators place the bolt in a specially designed mold, which typically has a placement groove for precise bolt positioning. However, these existing molds have a significant problem: they lack necessary protective mechanisms around the placement groove.

[0003] During bolt tensile strength testing, as the tensile force gradually increases, the bolt is prone to deformation or even breakage due to stress concentration within the material or manufacturing defects. If there is no effective protective mechanism around the placement slot, bolt fragments or bulging parts can easily fly out, posing a safety hazard to operators or testing equipment. Furthermore, existing strength testing machines often lack comprehensive protective designs, failing to effectively prevent potential accidents during testing and increasing operational risks. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] In view of this, the purpose of this utility model is to provide a high-strength bolt tensile strength testing machine, which solves the problems mentioned in the background above.

[0006] (II) Technical Solution

[0007] A high-strength bolt tensile strength testing machine includes a main body. A lower bolt clamp and an upper bolt clamp are provided at the upper end of the main body. Bolt molds are movably held within the inner walls of both the lower and upper bolt clamps. A connecting ring is fixedly installed at the bottom end of the upper bolt clamp, and a connecting ring is provided at the bottom end of the connecting ring. A gear ring is connected to one side of the bottom end of the connecting ring. A protective plate is connected to the bottom end of the gear ring. A limiting plate is fixedly installed on one side of the top end of the connecting ring. A motor is installed at the top end of the limiting plate, and a shaft is connected to the bottom end of the motor. A gear plate is connected to one end of the shaft, and the gear plate meshes with the gear ring.

[0008] Preferably, a fixing ring is fixedly installed on the outer surface of the motor, and the fixing ring is fixedly connected to the limiting plate by multiple sets of screws.

[0009] Preferably, fixing plates are fixedly installed on both sides of the bottom end of the main body of the testing machine, and screw holes are opened on the outer surface of the fixing plates.

[0010] Preferably, the outer surface of the protective plate has multiple sets of through grooves.

[0011] Preferably, the outer surface of the protective plate is covered with rubber.

[0012] Preferably, one end of the limiting plate is arc-shaped.

[0013] Preferably, the bottom end of the connecting ring is provided with an installation groove, and a bearing ring is installed in the installation groove, and a connecting ring is connected to the inner wall of the bearing ring.

[0014] As can be seen from the above technical solutions, this application has the following beneficial effects:

[0015] 1. This utility model uses a motor to drive a gear transmission system, automatically moving the protective plate to the front end to completely block the placement opening of the bolt mold. This process is not only simple to operate but also greatly improves the safety and efficiency of the test. Simultaneously, the through-groove design on the outer surface of the protective plate ensures the air permeability of the bolt mold during tensile testing while effectively preventing potential injury to operators or equipment from bolt fragments or bulges, ensuring the smooth progress of the entire testing process.

[0016] 2. This utility model reduces friction and wear during gear ring rotation through the design of the bearing ring, making the entire transmission system smoother and more stable, and extending the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the third three-dimensional structure of the present invention;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0022] In the diagram: 1. Main body of the testing machine; 2. Fixing plate; 3. Lower bolt clamp; 4. Upper bolt clamp; 5. Connecting ring; 6. Gear ring; 7. Protective plate; 8. Bolt mold; 911. Limiting plate; 912. Motor; 913. Fixing ring; 914. Screw; 915. Shaft; 916. Gear plate; 511. Bearing ring; 512. Connecting ring. Detailed Implementation

[0023] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of the various embodiments of this disclosure. Certain details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures.

[0024] Please see Figure 1-5 One embodiment provided by this utility model:

[0025] A high-strength bolt tensile strength testing machine includes a main body 1. A lower bolt clamp 3 and an upper bolt clamp 4 are provided at the upper end of the main body 1. Bolt molds 8 are movably clamped on the inner walls of both the lower bolt clamp 3 and the upper bolt clamp 4. A connecting ring 5 is fixedly installed at the bottom end of the upper bolt clamp 4, and a connecting ring 512 is provided at the bottom end of the connecting ring 5. A gear ring 6 is connected to one side of the bottom end of the connecting ring 512, and a protective plate 7 is connected to the bottom end of the gear ring 6. A limiting plate 911 is fixedly installed on one side of the top end of the connecting ring 5, and a motor 912 is installed at the top end of the limiting plate 911. A shaft 915 is connected to the bottom end of the motor 912, and a gear plate 916 is connected to one end of the shaft 915. The gear plate 916 meshes with the gear ring 6.

[0026] Furthermore, a retaining ring 913 is fixedly installed on the outer surface of the motor 912, and the retaining ring 913 is fixedly connected to the limiting plate 911 by multiple sets of screws 914. The screws 914 connection ensures that the motor 912 can remain stable when rotating at high speed or being impacted, avoiding transmission errors or safety accidents caused by motor shaking.

[0027] Furthermore, fixing plates 2 are fixedly installed on both sides of the bottom end of the main body 1 of the testing machine, and screw holes are opened on the outer surface of the fixing plates 2. The main body 1 of the testing machine is fixed to the ground through the screw holes, which effectively prevents the testing machine from shifting due to vibration or impact during the testing process.

[0028] Furthermore, the outer surface of the protective plate 7 has multiple sets of through grooves. These through grooves ensure the air permeability of the bolt mold while also preventing bolt fragments or bulging parts from directly injuring operators or equipment.

[0029] Furthermore, the outer surface of the protective plate 7 is wrapped with rubber. As a protective layer, the rubber provides additional protection for the protective plate 7 itself. During the bolt tensile strength test, the bolt may break into fragments or sharp edges due to material fracture. The presence of the rubber layer can effectively prevent these fragments or edges from directly scratching the protective plate, thereby avoiding secondary injury to the operator or other parts of the testing machine.

[0030] Furthermore, one end of the limiting plate 911 is arc-shaped to prevent scratches.

[0031] Furthermore, the bottom end of the connecting ring 5 is provided with an installation groove, and a bearing ring 511 is installed in the installation groove. The inner wall of the bearing ring 511 is connected to a connecting ring 512. The design of the bearing ring 511 reduces friction and wear between rotating parts, making the movement between the connecting ring 512 and the connecting ring 5 smoother and more stable.

[0032] Working principle: First, the operator places the bolt to be tested into the bolt mold 8, which is tightly clamped by the lower bolt clamp 3 and the upper bolt clamp 4 to ensure that the bolt remains in a stable position during the test.

[0033] Next, motor 912 is started. Motor 912 serves as the power source, and its outer surface is securely connected to the limiting plate 911 via a retaining ring 913 and multiple sets of screws 914, ensuring the stability and reliability of the motor during rotation. The rotation of the motor drives the shaft 915 to rotate accordingly. One end of the shaft 915 is connected to the gear plate 916, realizing the power transmission from the motor to the gear plate.

[0034] The gear plate 916 meshes with the gear ring 6, ensuring smooth power transmission and precise control. As the gear plate rotates, the gear ring 6 also rotates. The gear ring 6 is connected to the bottom end of the connecting ring 5 via a bearing ring 511. The design of the bearing ring 511 reduces friction and wear, making the rotation of the gear ring smoother and more stable.

[0035] Driven by the rotation of the gear ring 6, the protective plate 7 gradually moves from the rear end to the front end of the testing machine body 1 until it completely covers the placement opening of the bolt mold 8. Multiple sets of through grooves are formed on the outer surface of the protective plate 7. These grooves ensure the air permeability of the bolt mold during tensile testing while preventing bolt fragments or bulges from injuring operators or equipment. Simultaneously, the outer surface of the protective plate 7 is wrapped with rubber, enhancing its protective effect.

[0036] After the test is completed, motor 912 reverses, causing gear plate 916 and gear ring 6 to rotate in the opposite direction, so that protective plate 7 returns to its original position, making it easier for operators to remove the tested bolts and molds.

[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.

Claims

1. A high-strength bolt tensile strength testing machine, comprising a testing machine body (1), wherein a lower bolt clamp (3) and an upper bolt clamp (4) are provided at the upper end of the testing machine body (1), characterized in that: The inner walls of both the lower bolt clamp (3) and the upper bolt clamp (4) are movable to hold the bolt mold (8). The bottom end of the upper bolt clamp (4) is fixedly installed with a connecting ring (5), and the bottom end of the connecting ring (5) is provided with a connecting ring (512). A gear ring (6) is connected to one side of the bottom end of the connecting ring (512). A protective plate (7) is connected to the bottom end of the gear ring (6). A limit plate (911) is fixedly installed to one side of the top end of the connecting ring (5). A motor (912) is installed at the top end of the limit plate (911), and a shaft (915) is connected to the bottom end of the motor (912). A gear plate (916) is connected to one end of the shaft (915), and the gear plate (916) meshes with the gear ring (6).

2. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: A fixing ring (913) is fixedly installed on the outer surface of the motor (912), and the fixing ring (913) is fixedly connected to the limiting plate (911) by multiple sets of screws (914).

3. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: The bottom two sides of the main body (1) of the testing machine are fixedly installed with fixing plates (2), and the outer surface of the fixing plates (2) is provided with screw holes.

4. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: The outer surface of the protective plate (7) has multiple sets of through grooves.

5. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: The outer surface of the protective plate (7) is covered with rubber.

6. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: One end of the limiting plate (911) is arc-shaped.

7. The high-strength bolt tensile strength testing machine according to claim 1, characterized in that: The bottom end of the connecting ring (5) is provided with an installation groove, and a bearing ring (511) is installed in the installation groove. The inner wall of the bearing ring (511) is connected with a connecting ring (512).

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