Rubber strength testing device

Abstract

The utility model discloses a rubber strength testing device, and relates to the technical field of rubber strength testing. The telescopic rod is detachably fixed to the top of the supporting frame; the downward pressing assembly is detachably fixed to the bottom of the telescopic rod, and the downward pressing assembly is driven by the telescopic rod to extrude the rubber; the sliding piece can be sleeved on the outer side of the downward pressing assembly in an up-down sliding manner; the bulge assembly is rotatably mounted on the downward pressing assembly; the multiple swing arms are evenly hinged to the outer side of the sliding part in an annular array mode and drive the protruding assembly to rotate when the sliding part ascends and descends; the protruding assembly can protrude relative to the downward-pressing assembly, local pressure on rubber is increased, meanwhile, the protruding assembly can be folded, the downward-pressing assembly is kept in a plane, and the pressure borne by the rubber is the same.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber strength testing, and particularly relates to a rubber strength testing device. Background Art

[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a very small external force, and can return to its original state after the external force is removed. Rubber belongs to a completely amorphous polymer. Its glass transition temperature is low, and its molecular weight is often very large, greater than several hundred thousand. Rubber is an essential material in various fields of modern society.

[0003] In rubber production, rubbers produced in different batches and by different companies are different, and their qualities are also different. It is necessary to test their strengths to evaluate the quality of rubber belts.

[0004] With the change of rubber application scenarios and fields, in some special scenarios and fields, the local compression surface of rubber will be greater than the pressure on other parts. However, the existing strength testing devices usually use simple planar extrusion, and the pressure on the rubber plane is the same, so it is impossible to increase the local pressure test while maintaining the overall pressure.

[0005] Therefore, it is very necessary to invent a rubber strength testing device to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a rubber strength testing device to solve the problem that the strength testing device usually uses simple planar extrusion, the pressure on the rubber plane is the same, and it is impossible to increase the local pressure test while maintaining the overall pressure as mentioned in the above background art.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A rubber strength testing device, comprising:

[0008] A support frame;

[0009] A telescopic rod, which is detachably fixed on the top of the support frame;

[0010] A downward pressing assembly, which is detachably fixed at the bottom of the telescopic rod and presses the rubber under the drive of the telescopic rod;

[0011] A sliding member, which is slidably sleeved outside the downward pressing assembly;

[0012] A convex assembly, which is rotatably installed on the downward pressing assembly;

[0013] Swing arms, a plurality of swing arms are provided, and they are evenly hinged on the outer side of the sliding member in an annular array, and drive the convex component to rotate when the sliding member moves up and down.

[0014] Optionally, the support frame includes:

[0015] Bottom plate;

[0016] Support plates, two support plates are provided and are respectively fixed at both ends of the top of the support plate;

[0017] Top plate, both ends of the bottom of the top plate are respectively fixedly connected to the two support plates, and the top plate is detachably fixedly connected to the telescopic rod.

[0018] Optionally, the support frame further includes

[0019] The first limiting ring is fixed on the top of the bottom plate and is located directly below the telescopic rod;

[0020] Anti-slip pad, the anti-slip pad is bonded to the bottom of the bottom plate.

[0021] Optionally, the pressing component includes:

[0022] Pressure component, the pressure component is detachably fixed to the bottom of the telescopic rod;

[0023] Threaded rod, the threaded rod is detachably fixed to the bottom of the pressure component;

[0024] Pressing disc, the pressing disc is detachably fixed to the bottom of the threaded rod and presses the rubber when descending;

[0025] Installation through holes, a plurality of installation through holes are provided and are arranged in an annular array on the pressing disc.

[0026] Optionally, the pressure component includes:

[0027] Pressure device, the pressure device is detachably fixed between the threaded rod and the telescopic rod;

[0028] Display, the display is detachably fixed to the front side of the pressure device.

[0029] Optionally, the sliding member includes:

[0030] Threaded sleeve, the threaded sleeve is sleeved on the outer side of the threaded rod and moves up and down when rotating;

[0031] Polygonal key, the polygonal key is fixed on the top of the threaded sleeve;

[0032] Receiving component, the receiving component is rotatably sleeved on the outer side of the threaded sleeve;

[0033] A second limiting ring, which is detachably fixed on the outer side of the threaded sleeve and contacts the lower surface of the receiving assembly.

[0034] Optionally, the receiving assembly includes:

[0035] A rotating sleeve, which is rotatably sleeved on the outer side of the threaded sleeve;

[0036] A first hinge bracket, a plurality of which are provided and fixedly arranged on the outer side of the rotating sleeve in an annular array and are hinged to the swing arm.

[0037] Optionally, the convex assembly includes:

[0038] A lower pressing plate, which is rotatably installed inside the installation through hole and protrudes downward under the drive of the swing arm;

[0039] A second hinge bracket, which is fixed on the top of the lower pressing plate and is hinged to the swing arm.

[0040] The technical effects and advantages of the present utility model:

[0041] 1. The convex assembly of the present utility model can protrude relative to the lower pressing assembly, increasing the pressure on the local part of the rubber. At the same time, the convex assembly can also be retracted to keep the lower pressing assembly flat, so that the rubber receives the same pressure.

[0042] 2. The size of the protrusion of the convex assembly of the present utility model can be adjusted, improving the variability of the rubber pressure and the test effect of the rubber in different scenarios. Description of the Drawings

[0043] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0044] Figure 2 It is a schematic diagram of the structure of the support frame of the present utility model;

[0045] Figure 3 It is a schematic diagram of the protruding state of the convex assembly of the present utility model;

[0046] Figure 4 It is a schematic diagram of the flat extrusion state of the present utility model;

[0047] Figure 5 It is a schematic diagram of the structure of the lower pressing assembly of the present utility model.

[0048] In the figure: 100, support frame; 110, bottom plate; 120, support plate; 130, top plate; 140, first limiting ring; 150, anti-slip pad;

[0049] 200, telescopic rod;

[0050] 300, pressing assembly; 310, pressure assembly; 311, pressurizer; 312, display; 320, threaded rod; 330, pressing disc; 340, mounting through hole;

[0051] 400, sliding member; 410, threaded sleeve; 420, polygonal key; 430, receiving assembly; 431, rotating sleeve; 432, first hinge frame; 440, second limiting ring;

[0052] 600, protrusion assembly; 610, lower pressing plate; 620, second articulated frame;

[0053] 700. Swing arm. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0055] The utility model provides Figures 1-5 A rubber strength testing device is shown, comprising:

[0056] Support frame 100;

[0057] A telescopic rod 200, which is detachably fixed to the top of the support frame 100;

[0058] A pressing assembly 300, which is detachably fixed to the bottom of the telescopic rod 200 and squeezes the rubber under the drive of the telescopic rod 200;

[0059] A sliding member 400, which can be slidably sleeved on the outer side of the pressing assembly 300;

[0060] A protrusion assembly 600, the protrusion assembly 600 is rotatably mounted on the pressing assembly 300;

[0061] The swing arms 700 are provided in plurality and are evenly hinged on the outside of the sliding member 400 in a circular array, and drive the protrusion assembly 600 to rotate when the sliding member 400 is raised or lowered.

[0062] The protruding assembly 600 can be raised relative to the pressing assembly 300 to increase the local pressure on the rubber. At the same time, the protruding assembly 600 can also be retracted to keep the pressing assembly 300 flat so that the pressure on the rubber is the same.

[0063] Among them, the protrusion size of the protrusion assembly 600 can be adjusted, which improves the variability of the rubber pressure and improves the test effect of the rubber in different scenes;

[0064] Among them, the telescopic rod 200 is set to drive the pressing assembly 300 to rise and fall when it is extended, so that the pressing assembly 300 can normally perform the extrusion test on the rubber. At the same time, the telescopic rod 200 can be an electric telescopic rod and connected to an external power supply, and the telescopic rod 200 can be controlled by a controller to open and close (this technology is an existing publicly available prior art and does not need to be introduced in detail);

[0065] The swing arm 700 is arranged to drive the protrusion assembly 600 to rotate when the sliding member 400 slides up and down, so that the protrusion assembly 600 protrudes relative to the pressing assembly 300.

[0066] In some embodiments of the present invention, the support frame 100 includes:

[0067] Bottom plate 110;

[0068] A support plate 120, wherein two support plates 120 are provided and are respectively fixed at two ends of the top of the support plate 120;

[0069] The top plate 130 has two ends at the bottom thereof fixedly connected to the two support plates 120 , and the top plate 130 is detachably fixedly connected to the telescopic rod 200 .

[0070] The support plate 120 and the top plate 130 are provided to ensure the normal installation of the telescopic rod 200 and the height of the telescopic rod 200;

[0071] The bottom plate 110 ensures the stability of the device when placed.

[0072] In some embodiments of the present invention, the support frame 100 further includes

[0073] A first limiting ring 140, which is fixed to the top of the bottom plate 110 and is located directly below the telescopic rod 200;

[0074] The anti-skid pad 150 is bonded to the bottom of the base plate 110 .

[0075] The first limiting ring 140 can prevent the rubber from shifting when subjected to force and limit the position of the rubber.

[0076] The provision of the anti-slip pad 150 can increase the friction between the workbench and the workbench.

[0077] In some embodiments of the present invention, the pressing assembly 300 includes:

[0078] The pressure assembly 310 is detachably fixed to the bottom of the telescopic rod 200;

[0079] The threaded rod 320 is detachably fixed to the bottom of the pressure assembly 310;

[0080] The downward pressing disc 330 is detachably fixed to the bottom of the threaded rod 320 and presses the rubber when descending;

[0081] The mounting through holes 340 are provided in multiple numbers and are arranged in an annular array on the downward pressing disc 330.

[0082] Among them, the rubber is pressed through the setting of the downward pressing disc 330, so as to test the compressive strength of the rubber;

[0083] Among them, the setting of the mounting through holes 340 provides space for the installation of the protruding component 600 and enables the protruding component 600 to rotate normally.

[0084] In some embodiments of the present invention, the pressure assembly 310 includes:

[0085] The pressure device 311 is detachably fixed between the threaded rod 320 and the telescopic rod 200;

[0086] The display 312 is detachably fixed to the front side of the pressure device 311.

[0087] Among them, the pressure can be tested through the setting of the pressure device 311, and the tested pressure value is displayed through the display 312.

[0088] In some embodiments of the present invention, the sliding member 400 includes:

[0089] The threaded sleeve 410 is sleeved on the outside of the threaded rod 320 and moves up and down when rotating;

[0090] The polygonal key 420 is fixed to the top of the threaded sleeve 410;

[0091] The receiving assembly 430 is rotatably sleeved on the outside of the threaded sleeve 410;

[0092] The second limiting ring 440 is detachably fixed to the outside of the threaded sleeve 410 and contacts the lower surface of the receiving assembly 430.

[0093] Among them, through the cooperation of the threaded sleeve 410 and the threaded rod 320, when the threaded sleeve 410 rotates, the receiving assembly 430 is driven to move up and down through the thread;

[0094] Among them, the setting of the polygonal key 420 facilitates the force on the threaded sleeve 410, making it convenient for the operator to control the rotation of the threaded sleeve 410;

[0095] Among them, the setting of the second limiting ring 440 can limit the receiving component 430, enabling the receiving component 430 to move up and down following the threaded sleeve 410 without rotating following the threaded sleeve 410.

[0096] In some embodiments of the present utility model, the receiving component 430 includes:

[0097] A rotating sleeve 431, which is rotatably sleeved outside the threaded sleeve 410;

[0098] A first hinge frame 432, with multiple first hinge frames 432 provided and fixedly arranged on the outside of the rotating sleeve 431 in a circular array, and hinged to the swing arm 700.

[0099] Among them, the setting of the rotating sleeve 431 fixes multiple first hinge frames 432 together, so that the relative positions of the multiple first hinge frames 432 will not change;

[0100] Among them, the normal hinge connection of the first hinge frame 432 with the swing arm 700 enables the rotating sleeve 431 to drive the swing arm 700 to rotate during the up and down movement.

[0101] In some embodiments of the present utility model, the convex component 600 includes:

[0102] A lower pressing plate 610, which is rotatably installed inside the installation through hole 340 and protrudes downward under the drive of the swing arm 700;

[0103] A second hinge frame 620, which is fixed on the top of the lower pressing plate 610 and hinged to the swing arm 700.

[0104] Among them, the rotation of the lower pressing plate 610 protrudes downward relative to the lower pressing disc 330, changing the local stress state of the rubber;

[0105] Among them, the setting of the second hinge frame 620 is hinged to the swing arm 700, enabling the rotating sleeve 431 to drive the lower pressing plate 610 to rotate through the swing arm 700 during the up and down movement.

[0106] The working method of the present utility model:

[0107] When testing the overall strength of the rubber, first rotate the threaded sleeve 410. Under the action of the thread, the threaded sleeve 410 drives the rotating sleeve 431 to rise, causing the rotating sleeve 431 to push the swing arm 700 to rotate and drive the lower pressing plate 610 to rotate, so that the lower surface of the lower pressing plate 610 is at the same horizontal level as the lower surface of the lower pressing disk 330. Place the rubber inside the first limiting ring 140, and then start the telescopic rod 200. The telescopic rod 200 will drive the threaded rod 320 and the lower pressing disk 330 to descend and extrude the rubber, and the extrusion force is displayed through the display 312.

[0108] When testing the local strength of the rubber, adjust the state of the lower pressing disk 330. Rotate the threaded sleeve 410. Under the action of the thread, the threaded sleeve 410 drives the rotating sleeve 431 to descend, causing the rotating sleeve 431 to push the swing arm 700 to rotate, and the swing arm 700 to push the lower pressing plate 610 to rotate, so that the lower pressing plate 610 protrudes downward relative to the lower pressing disk 330. Then place it inside the first limiting ring 140, and then start the telescopic rod 200. The telescopic rod 200 will drive the threaded rod 320 and the lower pressing disk 330 to descend and extrude the rubber, and the extrusion force is displayed through the display 312.

[0109] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rubber strength testing device, characterized in that Comprising: Support frame (100); Expansion rod (200), which is detachably fixed to the top of the support frame (100); Pressing component (300), which is detachably fixed to the bottom of the expansion rod (200) and presses the rubber under the drive of the expansion rod (200); Sliding part (400), which is slidably sleeved on the outside of the pressing component (300) up and down; Protrusion component (600), which is rotatably installed on the pressing component (300); Swing arms (700), a plurality of which are provided and are evenly hinged on the outside of the sliding part (400) in an annular array, and drive the protrusion component (600) to rotate when the sliding part (400) moves up and down.

2. A rubber strength testing device according to claim 1, characterized in that: The support frame (100) comprises: Bottom plate (110); Support plates (120), two of which are provided and are respectively fixed to both ends of the top of the support plate (120); Top plate (130), the two ends of the bottom of the top plate (130) are respectively fixedly connected to the two support plates (120), and the top plate (130) is detachably fixedly connected to the expansion rod (200).

3. A rubber strength testing device according to claim 2, characterized in that: The support frame (100) further comprises First limiting ring (140), which is fixed to the top of the bottom plate (110) and is located directly below the expansion rod (200); Anti-slip pad (150), which is bonded to the bottom of the bottom plate (110).

4. A rubber strength testing device according to claim 1, characterized in that: The pressing component (300) comprises: Pressure component (310), which is detachably fixed to the bottom of the expansion rod (200); Threaded rod (320), which is detachably fixed to the bottom of the pressure component (310); Pressing disc (330), which is detachably fixed to the bottom of the threaded rod (320) and presses the rubber when descending; Mounting through holes (340), a plurality of which are opened and are opened on the pressing disc (330) in an annular array.

5. A rubber strength testing device according to claim 4, characterized in that: The pressure component (310) comprises: Pressure device (311), which is detachably fixed between the threaded rod (320) and the expansion rod (200); Display (312), which is detachably fixed to the front side of the pressure device (311).

6. A rubber strength testing device according to claim 1, characterized in that: The sliding part (400) comprises: Threaded sleeve (410), which is sleeved on the outside of the threaded rod (320) and moves up and down when rotating; The polygonal key (420) is fixed to the top of the threaded sleeve (410). The receiving component (430) is rotatably sleeved on the outside of the threaded sleeve (410). The second limiting ring (440) is detachably fixed to the outside of the threaded sleeve (410) and contacts the lower surface of the receiving component (430).

7. The rubber strength testing device according to claim 6, wherein: The receiving component (430) includes: The rotating sleeve (431) is rotatably sleeved on the outside of the threaded sleeve (410). A plurality of first hinge frames (432) are provided and are fixedly arranged on the outside of the rotating sleeve (431) in an annular array and are hinged to the swing arm (700).

8. The rubber strength testing device according to claim 1, wherein: The convex component (600) includes: The lower pressing plate (610) is rotatably installed inside the installation through hole (340) and protrudes downward under the drive of the swing arm (700). The second hinge frame (620) is fixed to the top of the lower pressing plate (610) and is hinged to the swing arm (700).

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