Tensile testing apparatus

Abstract

The utility model provides a kind of tensile test equipment, it includes rack, motor, centrifugal separation cavity, discharge cavity, cylinder, conveying cavity, conveying pipeline, rotating drum, blade, the tensile test equipment is rotated by motor drive screw rod, utilize the thread cooperation of screw rod and screw sleeve, drive sliding base moves along slide rail, and then through connecting seat drive clamping seat moves, the tensile test of reel both ends is realized. Rectangular gap groove set in the both sides of connecting seat is spaced distribution along screw rod length direction, and with screw rod rotation axis parallel, both avoid the interference between connecting seat and screw rod, and also ensure the stability of clamping seat movement. The rotation hole on fixed seat is rotatably connected with the end of screw rod, and the mounting hole on clamping seat is provided for screw rod, to ensure the support stability when screw rod rotates, reduce the influence of shaking on test accuracy, realize tensile test by mechanical transmission, easy to operate and transmission stable, effectively ensure the reliability of test process and the accuracy of result.

Description

Technical Field

[0001] This utility model relates to the technical field of roll tensile testing equipment, and in particular to a tensile testing equipment. Background Technology

[0002] During the production and use of roll-type products, it is necessary to test their tensile strength to ensure that the product quality meets requirements. Currently, equipment used for testing roll tensile strength has many shortcomings. Traditional equipment is often complex in structure and cumbersome to operate. When clamping the roll, it is difficult to guarantee the stability and reliability of the clamping, and the roll is prone to slippage or displacement, leading to inaccurate test results.

[0003] Meanwhile, existing equipment has poor adjustment flexibility and cannot adapt to the testing needs of reels of different specifications. When testing reels of different lengths or diameters, a large number of parts need to be replaced, which not only increases testing costs but also reduces testing efficiency. In addition, the drive structure design of some tensile testing equipment is unreasonable. During the movement of the clamping parts, it is easy to cause shaking or jamming, which affects the smoothness of tensile force application and thus adversely affects the testing accuracy. Utility Model Content

[0004] In view of this, the technical problem to be solved by this utility model is: how to provide a tensile testing device to improve the stability when performing tensile testing on a roll.

[0005] To achieve the above objectives, this utility model proposes a tensile testing device, which includes a base, a motor, a lead screw, a slide rail, a slide block, a screw sleeve, a connecting seat, a clamping seat, a fixing seat, a clamping block, and a rotating hole;

[0006] The motor is fixedly mounted on the base, the slide rail is mounted on the base and extends along the length of the base, and the output end of the motor is connected to the lead screw;

[0007] The slide block is slidably connected to the slide rail. The slide block is provided with the screw sleeve, and the screw sleeve is threaded inside. The screw sleeve is threadedly connected to the lead screw. The motor drives the lead screw to rotate, and with the screw sleeve threadedly engaged, the slide block moves along the slide rail.

[0008] The connecting seat connects the slide and the clamping seat. The connecting seat has rectangular notches on both sides. The two ends of the connecting seat are fixedly connected to the slide and the clamping seat respectively. The clamping seat is slidably connected to the slide rail.

[0009] The clamping seat is located between the slide and the fixed seat. The fixed seat is fixedly mounted on the base. The clamping seat and the fixed seat are respectively provided with clamping blocks. The clamping blocks are located in the clamping space provided on the clamping seat and the fixed seat, and the two ends of the roll are clamped by the clamping blocks provided on the clamping seat and the fixed seat.

[0010] The rotating hole is provided on the fixed base, and the end of the lead screw is rotatably connected to the rotating hole. The clamping base is provided with a mounting hole for the lead screw to pass through.

[0011] Furthermore, the connecting seat is located above the lead screw, and the rectangular notch is arranged parallel to the rotation axis of the lead screw.

[0012] Furthermore, the clamping blocks are located on both sides of the clamping space, the clamping blocks are connected to the threaded operating rod, and the threaded operating rod is threadedly connected to the clamping seat or the fixed seat.

[0013] Furthermore, the two rectangular notches are spaced apart along the length of the lead screw.

[0014] Compared with related technologies, the tensile testing device proposed in this utility model has the following advantages:

[0015] This tensile testing equipment uses a motor to drive a lead screw, which, through the threaded engagement with a threaded sleeve, moves a slide block along a slide rail. This, in turn, moves the clamping seat via a connecting seat, thus enabling tensile testing at both ends of the reel. Rectangular notches on both sides of the connecting seat are spaced along the length of the lead screw and parallel to its rotation axis, preventing interference between the connecting seat and the lead screw while ensuring the stability of the clamping seat's movement. A rotating hole on the fixed seat rotatably connects to the end of the lead screw, and mounting holes on the clamping seat allow the lead screw to pass through, ensuring stable support during rotation and reducing the impact of swaying on testing accuracy. The clamping blocks on the clamping seat and fixed seat are adjusted via a threaded operating rod, securely clamping both ends of the reel and adapting to testing different reel specifications, thus improving the equipment's versatility. The overall structure achieves tensile testing through mechanical transmission, which is simple to operate and provides stable transmission, effectively ensuring the reliability of the testing process and the accuracy of the results. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a tensile testing device according to an embodiment of the present invention;

[0017] Figure 2 This is a structural schematic diagram of a tensile testing device from another angle in an embodiment of this utility model. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figure 1 - Figure 2 As shown, this utility model proposes a tensile testing device, which includes a base 11, a motor 12, a lead screw 13, a slide rail 14, a slide block 15, a screw sleeve 151, a connecting seat 16, a clamping seat 17, a fixing seat 18, a clamping block 19, and a rotating hole 181.

[0020] The motor 12 is fixedly mounted on the base 11, and the slide rail 14 is mounted on the base 11. The slide rail 14 extends along the length of the base 11, and the output end of the motor 12 is connected to the lead screw 13.

[0021] The base 11 serves as the support for the entire machine, integrating components such as the motor 12, slide rail 14, and fixed seat 18 onto the same rigid reference surface. This ensures that the direction of the tension is coaxial with the axis of the lead screw 13, thus avoiding additional bending moments during the test.

[0022] The slide block 15 is slidably connected to the slide rail 14. A screw sleeve 151 is provided on the slide block 15. The screw sleeve 151 has internal threads. The screw sleeve 151 is threadedly connected to the lead screw 13. The motor 12 drives the lead screw 13 to rotate. With the screw 13 and the screw sleeve 151 in thread engagement, the slide block 15 moves along the slide rail 14.

[0023] The motor 12 is directly connected to the lead screw 13, precisely converting the rotational motion into the fixed-axis rotation of the lead screw 13, providing a controllable linear driving force for the slide 15. The slide rail 14 extends along the length of the base 11, forming a high-precision sliding pair with the slide 15. It guides the linear displacement of the slide 15 and also bears the test reaction force, ensuring that the displacement direction is consistent with the applied force direction. The internal thread of the threaded sleeve 151 engages with the lead screw 13, converting the rotation of the lead screw 13 into the linear displacement of the slide 15. By selecting the pitch, the correspondence between the displacement and the tension value can be directly calibrated.

[0024] A connecting seat 16 is connected between the slide 15 and the clamping seat 17. The connecting seat 16 is located above the lead screw 13. The rectangular notch 161 is parallel to the rotation axis of the lead screw 13. Rectangular notches 161 are provided on both sides of the connecting seat 16. The two rectangular notches 161 are spaced apart along the length of the lead screw 13. The two ends of the connecting seat 16 are fixedly connected to the slide 15 and the clamping seat 17 respectively. The clamping seat 17 is slidably connected to the slide rail 14.

[0025] The connecting seat 16 connects the slide 15 and the clamping seat 17, so that the slide 15 can synchronously drive the clamping seat 17 to move when it moves along the slide rail 14. Thus, the clamping seat 17 cooperates with the clamping block 19 on the fixed seat 18 to achieve the tension test of the reel. Rectangular notch slots 161 are provided on both sides of the connecting seat 16 and are distributed at intervals along the length of the lead screw 13, while being parallel to the rotation axis of the lead screw 13.

[0026] The above configuration enables the connecting seat 16 to effectively avoid the lead screw 13 and related components during the movement of the sliding seat 15 and the clamping seat 17, avoids interference between the connecting seat 16 and the lead screw 13, and ensures that the clamping seat 17 can move smoothly along the slide rail 14.

[0027] In addition, the design of the rectangular notch 161 reduces the overall weight of the connecting seat 16 while ensuring the connection strength of the connecting seat 16, and reduces the load when the slide 15 drives the clamping seat 17 to move. This helps to improve the stability and smoothness of the equipment operation, while reducing material consumption and optimizing the structural layout of the connecting seat 16. This ensures that the connecting seat 16 can achieve the connection function without hindering the rotation of the lead screw 13 or the movement of the clamping seat 17, thus ensuring the smooth progress of the tensile test process.

[0028] The connecting seat 16 spans above the lead screw 13 and avoids the rotational envelope of the lead screw 13 with a rectangular notch 161, realizing a rigid connection between the slide 15 and the clamping seat 17, so that the displacement of the slide 15 is transmitted to the clamping seat 17 without lag; the parallel arrangement of the notch can also reduce the height of the connecting seat 16, lower the center of gravity of the whole machine, and improve dynamic stability.

[0029] The clamping seat 17 is located between the slide 15 and the fixed seat 18. The fixed seat 18 is fixedly mounted on the base 11. The clamping seat 17 is slidably connected to the slide rail 14 and can move synchronously with the slide 15. Together with the fixed seat 18, it forms an adjustable test span to accommodate reels of different lengths. The fixed seat 18 is fixed to the end of the base 11 and provides rotational support to the end of the lead screw 13 through the rotating hole 181, limiting the axial movement and radial sway of the lead screw 13 and improving transmission accuracy.

[0030] Clamping base 17 and fixed base 18 are respectively provided with clamping blocks 19. The clamping blocks 19 are located in the clamping space provided on clamping base 17 and fixed base 18. The clamping blocks 19 are located on both sides of the clamping space. The clamping blocks 19 are connected to the threaded operating rod. The threaded operating rod is threadedly connected to clamping base 17 or fixed base 18. The two ends of the roll are clamped by the clamping blocks 19 provided on clamping base 17 and fixed base 18.

[0031] The clamping blocks 19 are located on both sides of the clamping space of the clamping seat 17 and the fixed seat 18, respectively. They are driven by the threaded operating rod to achieve synchronous clamping, ensuring that the axis of the reel coincides with the axis of the lead screw 13 and avoiding off-center loading. At the same time, the detachable clamping block 19 structure facilitates quick replacement to adapt to the testing needs of reels of different diameters.

[0032] A rotating hole 181 is provided on a fixed base 18, and the end of the lead screw 13 is rotatably connected to the rotating hole 181. A mounting hole for the lead screw 13 to pass through is provided on the clamping base 17.

[0033] The rotating hole 181 is located on the fixed base 18 and receives the end of the lead screw 13, forming a two-point support that works together with the end of the motor 12. This effectively eliminates the cantilever deformation when the lead screw 13 rotates at high speed, maintains the coaxiality of the threaded pair, and thus converts the torque of the motor 12 into linear driving force without loss. It also suppresses the periodic vibration caused by the bending of the lead screw 13 and improves the repeatability of test data.

[0034] The mounting hole passes through the clamping seat 17, allowing the lead screw 13 to pass freely through it. This provides the clamping seat 17 with a movement channel along the axis of the lead screw 13, and also achieves radial constraint through the small gap between the hole wall and the outer diameter of the lead screw 13. This prevents the clamping seat 17 from shifting laterally when subjected to force, ensuring that both ends of the reel are always on the same straight line of force, improving the coincidence of the tension direction with the axis of the reel, and reducing measurement errors.

[0035] The motor 12 is fixed on the base 11, and its output end is connected to the lead screw 13. The end of the lead screw 13 is rotatably connected in the rotating hole 181 of the fixed seat 18, and the motor 12 drives the lead screw 13 to rotate. The slide 15 is slidably connected to the slide rail 14 on the base 11, and is threadedly engaged with the lead screw 13 through the threaded sleeve 151 on it. When the lead screw 13 rotates, the threaded sleeve 151 drives the slide 15 to move along the slide rail 14.

[0036] The slide 15 is fixedly connected to the clamping seat 17 via the connecting seat 16, so that when the slide 15 moves, it can synchronously drive the clamping seat 17 to move along the slide rail 14. The mounting hole on the clamping seat 17 allows the lead screw 13 to pass through, ensuring that the movement is not obstructed by the lead screw 13. Both the clamping seat 17 and the fixed seat 18 are provided with clamping blocks 19. The clamping blocks 19 are connected to the corresponding seat body via threaded operating rods. By operating the threaded operating rods, the clamping blocks 19 can be moved within the clamping space, thereby clamping both ends of the reel.

[0037] When the motor 12 drives the slide 15 and the clamping seat 17 away from the fixed seat 18, the clamping blocks 19 on the clamping seat 17 and the fixed seat 18 apply tension to both ends of the roll, thereby realizing the tension test of the roll. The smoothness and accuracy of the tension application are ensured by the cooperation of the lead screw 13 and the slide rail 14 throughout the process.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tensile testing device, characterized in that, It includes a base, motor, lead screw, slide rail, slide block, screw sleeve, connecting seat, clamping seat, fixing seat, clamping block, and rotating hole; The motor is fixedly mounted on the base, the slide rail is mounted on the base and extends along the length of the base, and the output end of the motor is connected to the lead screw; The slide block is slidably connected to the slide rail. The slide block is provided with the screw sleeve, and the screw sleeve is threaded inside. The screw sleeve is threadedly connected to the lead screw. The motor drives the lead screw to rotate, and with the screw sleeve threadedly engaged, the slide block moves along the slide rail. The connecting seat connects the slide and the clamping seat. The connecting seat has rectangular notches on both sides. The two ends of the connecting seat are fixedly connected to the slide and the clamping seat respectively. The clamping seat is slidably connected to the slide rail. The clamping seat is located between the slide and the fixed seat. The fixed seat is fixedly mounted on the base. The clamping seat and the fixed seat are respectively provided with clamping blocks. The clamping blocks are located in the clamping space provided on the clamping seat and the fixed seat, and the two ends of the roll are clamped by the clamping blocks provided on the clamping seat and the fixed seat. The rotating hole is provided on the fixed base, and the end of the lead screw is rotatably connected to the rotating hole. The clamping base is provided with a mounting hole for the lead screw to pass through.

2. The tensile testing device as described in claim 1, characterized in that, The connecting seat is located above the lead screw, and the rectangular notch is arranged parallel to the rotation axis of the lead screw.

3. The tensile testing device as described in claim 2, characterized in that, The clamping blocks are located on both sides of the clamping space. The clamping blocks are connected to the threaded operating rod, and the threaded operating rod is threadedly connected to the clamping seat or the fixed seat.

4. The tensile testing device as described in claim 3, characterized in that, The two rectangular notches are spaced apart along the length of the lead screw.

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