Device for detecting torsion resistance of polyurethane material

Abstract

The utility model discloses a polyurethane material torsion resistance performance detection device, which relates to the technical field of polymer material performance detection and comprises a base, a motor is fixed on the top of the base through a support frame, the output end of the motor is connected with a torsion applying structure, and the torsion applying structure comprises a torsion structure and a clamping mechanism. The torsion structure applies torsion force to the polyurethane material, and the clamping mechanism clamps one end of the polyurethane material. According to the utility model, one end of the polyurethane material is fixed through the fixing structure, and the polyurethane material is wound on the surface of the torsion detection rod in a spiral winding posture, so that the output end of the motor can pull the polyurethane material wound on the surface of the torsion detection rod to generate torsion deformation; the polyurethane material generates pressure on the pressure detector under the action of torsional force and deforms, and the torsional force resistance stability of the polyurethane material can be obtained by observing the deformation degree and the corresponding pressure of the polyurethane material.

Description

Technical Field

[0001] The utility model relates to the technical field of performance detection of polymer materials, in particular to a device for detecting the torsional resistance performance of polyurethane materials. Background Technique

[0002] Polyurethane is the abbreviation of polyisocyanate, also known as PU material. Polyurethane belongs to a kind of high molecular compound, which is formed by the reaction of isocyanate and polyol. This material has the characteristics of light weight, wear resistance, corrosion resistance and strong plasticity, and is widely used in the fields of industrial production and life. There is a positive correlation between the wear resistance strength and the torsional resistance performance of polyurethane materials. In order to test the wear resistance strength of polyurethane materials, we propose a device for detecting the torsional resistance performance of polyurethane materials. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for detecting the torsional resistance performance of polyurethane materials, so as to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a device for detecting the torsional resistance performance of polyurethane materials, including a base, a motor is fixed on the top of the base through a support frame, the input end of the motor is electrically connected to an external power supply, the output end of the motor is connected with a torsional force applying structure, the torsional force applying structure includes a torsion structure and a clamping mechanism, the torsion structure applies a torsional force to the polyurethane material, the clamping mechanism clamps one end of the polyurethane material, the torsion structure includes a driving plate connected to the output end of the motor, a limiting port is penetrated through one side of the driving plate, and the clamping mechanism clamps one end of the polyurethane material to apply a torsional force through the torsion structure; a horizontally placed torsion detection rod is fixed on the top of the base through a fixing frame, at least one pressure detector is penetrated and installed on the surface of the torsion detection rod, the pressure detector detects the pressure of the polyurethane material on its surface, a certain length of polyurethane material is used to detect the maximum torsional force it can bear, the detection probe of the pressure detector protrudes from the surface of the torsion detection rod, and a fixing structure is welded to one end of the torsion detection rod.

[0005] As a further scheme of the utility model: the driving plate is an "L"-shaped hard plate, a baffle is welded to one end of the torsion detection rod, and the height of the driving plate is not less than twice the diameter of the baffle. By setting the height of the driving plate not less than twice the diameter of the baffle, it can be avoided that the driving plate collides with the torsion detection rod during the rotation process.

[0006] As a further scheme of the utility model: the clamping mechanism includes a limiting plate, a friction plate and a cylinder welded to the side surface of the driving plate, and a plurality of locking pins are threadedly penetrated through the surface of the limiting plate, and the locking pins can fix one end of the polyurethane material.

[0007] As a further solution of the present utility model: A pressure block is welded to one end of the locking pin, a plurality of conical protrusions are welded to the top surface of the friction plate, the bottom of the air cylinder penetrates through the driving plate and is connected with a pressing plate, and the telescopic end of the air cylinder applies pressure to the surface of the polyurethane material, which can position one end of the polyurethane material and prevent the polyurethane material from shifting during the twisting process.

[0008] As a further solution of the present utility model: The fixing structure includes a threaded rod, a clamping cylinder is threadedly connected to the surface of the threaded rod, a hand wheel is welded to one end of the clamping cylinder, and rotating the hand wheel can adjust the connection depth between the threaded rod and the clamping cylinder.

[0009] As a further solution of the present utility model: The polyurethane material is a polyurethane long strip, a perforation adapted to the threaded rod is provided at one end of the polyurethane material, and one end of the clamping cylinder presses the polyurethane material against one end of the torque detection rod, which can enhance the fixing stability of one end of the polyurethane material.

[0010] As a further solution of the present utility model: The output end of the motor is collinear with the central axis of the torque detection rod, which can reduce the volume of the equipment and save the equipment space.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The present utility model fixes one end of the polyurethane material through the fixing structure and winds the polyurethane material around the surface of the torque detection rod in a spiral winding posture. The output end of the motor can pull the polyurethane material wound around the surface of the torque detection rod to generate a torsional deformation. The polyurethane material generates pressure on the pressure detector under the torsional force and deforms. By observing the deformation degree of the polyurethane material and the corresponding pressure magnitude, the stability of the anti-torsion performance of the polyurethane material can be obtained.

[0013] 2. The present utility model sets the height of the driving plate to be not less than twice the diameter of the baffle, which can avoid the driving plate colliding with the torque detection rod during the rotation process. By applying pressure to the surface of the polyurethane material through the telescopic end of the air cylinder, one end of the polyurethane material can be positioned to prevent the polyurethane material from shifting during the twisting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a side view of the present utility model;

[0016] Figure 3 is a structural diagram of the present utility model from the right side view angle.

[0017] In the figure: 1. Base; 2. Support frame; 3. Motor; 4. Drive plate; 5. Cylinder; 6. Pressing plate; 7. Friction plate; 8. Conical protrusion; 9. Limiting plate; 10. Locking pin; 11. Pressure block; 12. Fixed frame; 13. Torsion detection rod; 14. Pressure detector; 141. Detection probe; 15. Baffle; 16. Threaded rod; 17. Clamping cylinder; 18. Polyurethane material; 19. Limiting opening; 20. Handwheel. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 3 , the present invention provides a technical solution: a device for detecting the anti-torsion performance of polyurethane materials, including a base 1. A motor 3 is fixed on the top of the base 1 through a support frame 2. The input end of the motor 3 is electrically connected to an external power source. The output end of the motor 3 is connected to a torsion application structure. The torsion application structure includes a torsion structure and a clamping mechanism. The torsion structure applies a torsional force to the polyurethane material 18, and the clamping mechanism clamps one end of the polyurethane material 18. The torsion structure includes a drive plate 4 connected to the output end of the motor 3. A limiting opening 19 is formed through one side of the drive plate 4. The clamping mechanism clamps one end of the polyurethane material 18 and applies a torsional force through the torsion structure. The clamping mechanism includes a limiting plate 9, a friction plate 7 and a cylinder 5 welded to the side surface of the drive plate 4. A plurality of locking pins 10 are threadedly penetrated through the surface of the limiting plate 9. The locking pins 10 can fix one end of the polyurethane material 18; a horizontally placed torsion detection rod 13 is fixed on the top of the base 1 through a fixed frame 12. At least one pressure detector 14 is installed through the surface of the torsion detection rod 13. The pressure detector 14 detects the pressure of the polyurethane material 18 on its surface. By using a polyurethane material 18 of a certain length, the maximum torsion it can withstand can be detected. The detection probe 141 of the pressure detector 14 protrudes from the surface of the torsion detection rod 13. A fixed structure is welded to one end of the torsion detection rod 13. The fixed structure includes a threaded rod 16. A clamping cylinder 17 is threadedly connected to the surface of the threaded rod 16. A handwheel 20 is welded to one end of the clamping cylinder 17. Rotating the handwheel 20 can adjust the connection depth between the threaded rod 16 and the clamping cylinder 17.

[0020] Preferably, as Figure 1As shown, the drive plate 4 is an "L"-shaped rigid plate. One end of the torque detection rod 13 is welded with a baffle 15. The height of the drive plate 4 is not less than twice the diameter of the baffle 15. By setting the height of the drive plate 4 to be not less than twice the diameter of the baffle 15, it can be avoided that the drive plate 4 collides with the torque detection rod 13 during the rotation process.

[0021] Preferably, as Figure 1 shown, one end of the locking pin 10 is welded with a pressure block 11. The top surface of the friction plate 7 is welded with a plurality of conical protrusions 8. The bottom of the air cylinder 5 penetrates through the drive plate 4 and is connected with a pressing plate 6. The telescopic end of the air cylinder 5 applies pressure to the surface of the polyurethane material 18, which can position one end of the polyurethane material 18 and prevent the polyurethane material 18 from shifting during the twisting process.

[0022] Preferably, as Figure 3 shown, the polyurethane material 18 is a polyurethane long strip. One end of the polyurethane material 18 is provided with a perforation adapted to the threaded rod 16. One end of the clamping cylinder 17 presses the polyurethane material 18 against one end of the torque detection rod 13, which can enhance the fixing stability of one end of the polyurethane material 18.

[0023] Preferably, as Figure 1 shown, the output end of the motor 3 is collinear with the central axis of the torque detection rod 13, which can reduce the volume of the equipment and save the equipment space.

[0024] Working principle: When in use, the perforation at one end of the polyurethane material 18 is hung through the connection part of the threaded rod 16 and the torque detection rod 13, and one end of the polyurethane material 18 is fixed by the fixing structure, and the polyurethane material 18 is wound around the surface of the torque detection rod 13 in a spiral shape. The torque detection rod 13 is in pressure contact with the detection probe 141 of the pressure detector 14. The other end of the polyurethane material 18 passes through the limit port 19 and is pressed and fixed by the locking pin 10. The motor 3 is started, and the output end of the motor 3 drives the drive plate 4 to rotate in the vertical direction, so that the polyurethane material 18 wound around the surface of the torque detection rod 13 is twisted. The polyurethane material 18 generates pressure on the pressure detector 14 under the torsional force and deforms. By observing the deformation degree of the polyurethane material 18 and the corresponding pressure magnitude, the stability of the anti-torsion performance of the polyurethane material 18 can be obtained.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyurethane material torsional resistance performance detection device, including a base (1), characterized in that, At the top of the base (1), a motor (3) is fixed through a support frame (2). The output end of the motor (3) is connected to a torsion application structure, which includes a torsion structure and a clamping mechanism. The torsion structure includes a drive plate (4) connected to the output end of the motor (3). A limit opening (19) is penetrated and opened on one side of the drive plate (4). One end of the polyurethane material (18) clamped by the clamping mechanism is applied with a torsional force through the torsion structure; at the top of the base (1), a horizontally placed torsion detection rod (13) is fixed through a fixing frame (12). At least one pressure detector (14) is penetrated and installed on the surface of the torsion detection rod (13). The detection probe (141) of the pressure detector (14) protrudes from the surface of the torsion detection rod (13). A fixing structure is welded to one end of the torsion detection rod (13).

2. The torque resistance performance detection device for a polyurethane material according to claim 1, wherein: The drive plate (4) is an "L"-shaped rigid plate. A baffle (15) is welded to one end of the torsion detection rod (13). The height of the drive plate (4) is not less than twice the diameter of the baffle (15).

3. The anti-torsion performance detection device for a polyurethane material according to claim 2, wherein: The clamping mechanism includes a limit plate (9), a friction plate (7) and a cylinder (5) welded to the side surface of the drive plate (4). A number of locking pins (10) are threadedly penetrated and connected to the surface of the limit plate (9).

4. The anti-torsion performance detection device for a polyurethane material according to claim 3, characterized in that: One end of the locking pin (10) is welded with a pressure block (11). A plurality of conical protrusions (8) are welded to the top surface of the friction plate (7). The bottom of the cylinder (5) penetrates the drive plate (4) and is connected to a pressing plate (6).

5. The anti-torsion performance detection device for a polyurethane material according to claim 4, characterized in that: The fixing structure includes a threaded rod (16). A clamping cylinder (17) is threadedly connected to the surface of the threaded rod (16). A hand wheel (20) is welded to one end of the clamping cylinder (17).

6. The anti-torsion performance detection device for a polyurethane material according to claim 5, wherein: The polyurethane material (18) is a polyurethane long strip. A perforation adapted to the threaded rod (16) is opened at one end of the polyurethane material (18). One end of the clamping cylinder (17) presses the polyurethane material (18) against one end of the torsion detection rod (13).

7. The anti-torsion performance detection device for a polyurethane material according to claim 1, wherein: The output end of the motor (3) is collinear with the central axis of the torsion detection rod (13).

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