Rubber anti-fatigue testing device

Abstract

The utility model discloses a rubber anti-fatigue testing device which comprises a lower die, bottom feet, a die groove, stand columns, an installation frame, a hydraulic cylinder and an upper die, the bottom feet are arranged at the bottom of the lower die, the die groove is formed in the lower die, the hydraulic cylinder is installed on the installation frame, the upper die is connected with a piston rod of the hydraulic cylinder, and the stand columns are arranged on the upper die. A telescopic module is mounted in the middle of the die cavity and placed in the mounting groove, an adjusting stud in threaded fit with the lower die is arranged at the bottom of the mounting groove, the upper end of the adjusting stud is supported at the bottom of the telescopic module, a stabbing rod is arranged in the die cavity on the outer side of the telescopic module, and the bottom of the stabbing rod is inserted into the adjusting hole; the ejector nut is supported at the bottom of the stabbing rod and can eject the stabbing rod to protrude out of the die groove; according to the upper and lower die structure designed by the utility model, the die structure can be correspondingly adjusted according to test requirements of different rubber materials, so that anti-fatigue tests such as shearing, puncturing and the like can be carried out on the different rubber materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber production testing technical field, especially relate to a rubber fatigue resistance testing device. BACKGROUND

[0002] Rubber processing, the technological process of making rubber into rubber products, the basic process of various rubber product processing includes plastication, mixing, calendering or extruding (i.e. extrusion), molding and vulcanization etc. basic working procedure, wherein each process has different requirements for products, respectively cooperate with several auxiliary operations, which need to use testing device when carrying out fatigue resistance test.

[0003] The existing testing device is inconvenient to adjust when testing different products, resulting in poor versatility of the testing device. In order to meet the fatigue resistance test of more rubber, the present application improves the prior art and provides a rubber fatigue resistance testing device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a rubber fatigue resistance testing device.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A rubber fatigue resistance testing device, including lower mould, foot, mould groove, stand, mounting bracket, hydraulic cylinder and upper mould, the foot is arranged at the bottom of lower mould, the mould groove is arranged on the lower mould, the stand is arranged on four corners of the upper end of lower mould, the mounting bracket is fixedly installed at the top of stand, the hydraulic cylinder is installed on the mounting bracket, the upper mould is connected with the piston rod of hydraulic cylinder, the middle position of mould groove is installed with telescopic module, the telescopic module is placed in the installation groove, the bottom of installation groove is equipped with the adjusting stud that is screwed with lower mould, the upper end of adjusting stud is supported at the bottom of telescopic module, the mould groove outside telescopic module is equipped with the stab rod, the bottom of stab rod is inserted into the adjusting hole, the bottom of adjusting hole is installed with the material lifting nut through the screw cooperation, the material lifting nut is supported at the bottom of stab rod, and the protruding mould groove of stab rod can be set; The position of upper mould corresponding telescopic module is equipped with telescopic cavity, the telescopic cavity is installed with telescopic press, the upper end of telescopic press is fixedly connected with the linkage frame above upper mould through linkage rod, the bottom end outside linkage frame is fixedly connected with the top of piston rod, the lower end of piston rod installed with piston is installed in piston cavity, the piston cavity is connected with hydraulic oil tank through hydraulic pipe and hydraulic pump.

[0007] Further, the hydraulic pipe includes upper moving hydraulic pipe and lower pressing hydraulic pipe, the upper moving hydraulic pipe is connected with the bottom of piston cavity, and the lower pressing hydraulic pipe is connected with the top of piston cavity.

[0008] Further, the top material nut is selected as a countersunk nut, and the matching position of the top material nut can be adjusted through a hexagonal head wrench, so that the length of the piercing rod extending out of the mold groove is controlled, and the puncture test of different rubber materials is achieved.

[0009] Further, the upper end of the adjusting stud is provided with a support block supported on the bottom of the telescopic module, so that the stress area of the bottom of the telescopic module is increased, and the damage of the telescopic module is reduced.

[0010] In summary, the upper and lower mold structure designed in the utility model can make corresponding adjustment on the mold structure according to the test requirements of different rubber materials, so that the shear, puncture and other fatigue resistance tests of different rubber materials are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 is a structural schematic diagram of the utility model;

[0012] Fig. 2 is a structural schematic diagram of the upper mold of the utility model;

[0013] Fig. 3 is a partial enlarged view of the lower mold of the utility model.

[0014] In the figure, 1, lower mold; 2, foot; 3, mold groove; 4, stand; 5, mounting frame; 6, hydraulic cylinder; 7, upper mold; 8, telescopic mold; 9, adjusting stud; 10, piercing rod; 11, top material nut; 12, telescopic compression mold; 13, telescopic cavity; 14, linkage frame; 15, linkage rod; 16, piston rod; 17, piston block; 18, piston cavity; 19, upper displacement hydraulic pipe; 20, lower displacement hydraulic pipe; 21, adjusting hole; 22, support block. DETAILED DESCRIPTION

[0015] The utility model will be further described in detail in combination with the drawings, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0016] As Figs. 1-3As shown, a rubber fatigue test device, including a lower die 1, a foot 2, a mold groove 3, a column 4, a mounting bracket 5, a hydraulic cylinder 6 and an upper die 7, the foot 2 is arranged at the bottom of the lower die 1, the mold groove 3 is arranged on the lower die 1, the column 4 is arranged on the four corners of the upper end of the lower die 1, the mounting bracket 5 is fixedly installed on the top of the column 4, the hydraulic cylinder 6 is installed on the mounting bracket 5, the upper die 7 is connected with the piston rod of the hydraulic cylinder 6, the middle position of the mold groove 3 is provided with a telescopic module 8, the telescopic module 8 is placed in the installation groove, the bottom of the installation groove is provided with an adjusting stud 9 matched with the lower die 1 in screw, the upper end of the adjusting stud 9 is supported on the bottom of the telescopic module 8, the mold groove 3 outside the telescopic module 8 is provided with a spike rod 10, the bottom of the spike rod 10 is inserted into the adjusting hole 21, the top material nut 11 is installed at the bottom of the adjusting hole 21 through the thread cooperation, the top material nut 11 is supported on the bottom of the spike rod 10, and the protruding mold groove 3 can be set by the spike rod 10; The position of the upper die 7 corresponding to the telescopic module 8 is provided with a telescopic cavity 13, the telescopic cavity 13 is provided with a telescopic pressing die 12, the upper end of the telescopic pressing die 12 is fixedly connected with the linkage bracket 14 above the upper die 7 through the linkage rod 15, the bottom end of the linkage bracket 14 is fixedly connected with the top of the piston rod 16, the lower end of the piston 17 is installed in the piston cavity 18, and the piston cavity 18 is connected with the hydraulic oil tank through the hydraulic pipe and the hydraulic pump.

[0017] Further, as shown in the figure, Fig. 2 The hydraulic pipe includes an upper moving hydraulic pipe 19 and a lower pressing hydraulic pipe 20, the upper moving hydraulic pipe 19 is connected with the bottom of the piston cavity 18, and the lower pressing hydraulic pipe 20 is connected with the top of the piston cavity 18.

[0018] Further, the top material nut 11 is selected as a countersunk nut, the position of the top material nut 11 can be adjusted by a hexagonal head wrench, so as to control the length of the spike rod 10 extending out of the mold groove 3, so as to achieve the puncture test of different rubber materials.

[0019] Further, as shown in the figure, Fig. 3 The upper end of the adjusting stud 9 is provided with a support block 22 supported on the bottom of the telescopic module 8, the stress area of the bottom of the telescopic module 8 is increased, and the damage of the telescopic module 8 is reduced.

[0020] Working principle: first, according to the test requirements of the rubber material to be tested, the position of the adjusting screw post 9 and the material lifting nut 11 is adjusted, so as to adjust the position of the piercing rod 10 and the telescopic module 8, then the rubber material to be tested is placed inside the mold groove 3, then the hydraulic cylinder 6 is controlled to move down, the rubber material in the mold groove 3 is stamped, after pressing to the bottom, the telescopic die 12 is controlled to move down, the rubber material in the middle position of the mold groove is stamped, then the upper die 7 is controlled to move up, the upper die 7 and the telescopic die 12 are controlled to move down, the above-mentioned actions are repeated, the specified number of stamping is completed, that is, the anti-fatigue test process of the rubber material is completed.

[0021] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A rubber fatigue resistance testing device, comprising a lower mold (1), a foot (2), a mold groove (3), a column (4), a mounting frame (5), a hydraulic cylinder (6) and an upper mold (7), the foot (2) is arranged at the bottom of the lower mold (1), the mold groove (3) is arranged on the lower mold (1), the column (4) is arranged on the four corners of the upper end of the lower mold (1), the mounting frame (5) is fixedly installed on the top of the column (4), the hydraulic cylinder (6) is installed on the mounting frame (5), and the upper mold (7) is connected with the piston rod of the hydraulic cylinder (6), characterized in that: The middle position of the mold groove (3) is provided with a telescopic module (8), the telescopic module (8) is placed in the installation groove, the bottom of the installation groove is provided with an adjusting screw column (9) matched with the lower die (1) by screw thread, the upper end of the adjusting screw column (9) is supported on the bottom of the telescopic module (8), the mold groove (3) outside the telescopic module (8) is provided with a spike rod (10), the bottom of the spike rod (10) is inserted into the adjusting hole (21), the bottom of the adjusting hole (21) is provided with a lifting nut (11) matched by screw thread, the lifting nut (11) is supported on the bottom of the spike rod (10), and the protruding mold groove (3) can be set by the spike rod (10); The upper die (7) is provided with a telescopic cavity (13) corresponding to the position of the telescopic module (8), the telescopic cavity (13) is provided with a telescopic pressing die (12), the upper end of the telescopic pressing die (12) is fixedly connected with the upper linkage frame (14) above the upper die (7) through the linkage rod (15), the bottom end outside the linkage frame (14) is fixedly connected with the top of the piston rod (16), the lower end of the piston rod (16) is provided with a piston (17), and the lower end of the piston (17) is installed in the piston cavity (18). The piston cavity (18) is connected with the hydraulic oil tank through the hydraulic pipe and the hydraulic pump.

2. The rubber fatigue resistance testing device according to claim 1, wherein: The hydraulic pipe comprises an upper moving hydraulic pipe (19) and a lower pressing hydraulic pipe (20), the upper moving hydraulic pipe (19) is connected with the bottom of the piston cavity (18), and the lower pressing hydraulic pipe (20) is connected with the top of the piston cavity (18).

3. The rubber fatigue resistance testing device according to claim 1, wherein: The lifting nut (11) is a countersunk nut.

4. The rubber fatigue resistance testing device according to claim 1, wherein: The upper end of the adjusting screw column (9) is provided with a support block (22) supported on the bottom of the telescopic module (8).

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