Rubber ring tensile test device

Abstract

The utility model provides a rubber ring tensile testing device which comprises a base, a fixed column and a guide rail are arranged on the base, a sliding seat corresponding to the fixed column is connected to the guide rail in a sliding mode, a tension meter is arranged on the sliding seat, one end of the tension meter is connected with the sliding seat, and a connecting piece is arranged at the other end of the tension meter. Two sides of a tested rubber ring are respectively sleeved on the fixed column and the connecting piece; a lead screw is rotationally connected to the base and is parallel to the guide rail, and a lead screw through hole is formed in the sliding seat. A guide groove is formed in the sliding base and located in one side of the through hole of the lead screw, a movable thread assembly is slidably connected into the guide groove, an internal thread matched with the lead screw is arranged on the side, close to the lead screw, of the movable thread assembly, and a spring is arranged between the other side of the movable thread assembly and the groove wall of the guide groove. The device is simple in structure and small in size, can be conveniently carried and transported, can be conveniently carried to some specific sites for on-site testing, and meets the requirements of on-site testing.

Description

Technical Field

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

[0002] During the production process of rubber rings, tensile tests need to be carried out on the rubber rings. Among them, the tensile breaking force of the rubber ring refers to the tensile force that the rubber ring can withstand when it is stretched to break in the tensile test. This force value is an embodiment of the tensile strength of the rubber ring, which describes the ultimate bearing capacity of the rubber ring under the action of external forces.

[0003] The "tensile breaking force" of a rubber ring refers to the maximum force that the rubber ring can withstand until it breaks in a tensile test. This force value is an embodiment of the tensile strength, which describes the ultimate bearing capacity of the rubber ring under the action of external forces. The unit of tensile breaking force is usually Newton (N), and sometimes it is also expressed in kilonewton (kN).

[0004] The test of tensile breaking force usually follows international standards, such as ISO 37 or ASTM D412, etc. These tests are usually carried out using a tensile testing machine. When conducting the test, first prepare a suitable rubber ring as the test sample, clamp both sides of the rubber ring with two clamps on the tensile testing machine, and then stretch the rubber ring until it breaks, and record the tensile force when the rubber ring breaks. This tensile force value is the tensile breaking force of the rubber ring.

[0005] However, the existing tensile testing machines have complex structures and relatively large volumes, which are not convenient to move and carry. For situations where on-site testing is required, such as construction sites or production lines, traditional tensile testing machines cannot be conveniently moved to these on-site environments for testing, so it is difficult to meet the on-site testing requirements. Moreover, the tensile power in traditional tensile testing machines comes from electrical devices such as motors, which rely heavily on power supply facilities and cannot complete the tensile test work of rubber rings in some environments without power supply facilities. Summary of the Invention

[0006] The purpose of the utility model is to solve the deficiencies in the prior art and provide a rubber ring tensile testing device.

[0007] The purpose of the utility model is achieved through the following technical solutions: A rubber ring tensile testing device includes a base, on which a fixed column and a guide rail are provided. A sliding seat corresponding to the fixed column is slidably connected to the guide rail. A tensiometer is provided on the sliding seat. One end of the tensiometer is connected to the sliding seat, and a connecting piece is provided at the other end of the tensiometer. Both sides of the rubber ring to be tested are respectively sleeved on the fixed column and the connecting piece. A lead screw is rotatably connected to the base, and the lead screw is parallel to the guide rail. A lead screw through hole is provided on the sliding seat, and the lead screw passes through the lead screw through hole. A knob is provided at one end of the lead screw.

[0008] The sliding seat is provided with a guide groove, which is located on one side of the through hole of the lead screw. An active thread assembly is slidably connected in the guide groove. An internal thread matching the lead screw is provided on the side of the active thread assembly close to the lead screw. A spring is provided between the other side of the active thread assembly and the groove wall of the guide groove; a pull rod is connected to the active thread assembly.

[0009] In the present utility model, the tensiometer is arranged on one side of the sliding seat close to the fixed column, and one end of the pull rod extends out of the sliding seat. During the test, first, both sides of the rubber ring to be tested are respectively sleeved on the fixed column and the connecting piece, and then the operator manually rotates the lead screw. The rotation of the lead screw drives the sliding seat to move away from the fixed column. During the movement of the sliding seat, the rubber ring is gradually stretched. The operator observes the reading of the tensiometer. When the rubber ring is broken, the value of the tensiometer is recorded, and this value is the tensile breaking force of the rubber ring. When the tensile test of the rubber ring is completed, the operator pulls the pull rod outwards. The pull rod drives the active thread assembly to move away from the lead screw, so that the internal thread on the active thread assembly is disengaged from the external thread on the lead screw. Then the operator pushes the sliding seat to move along the guide rail direction and slides it to the initial position. When the sliding seat reaches the initial position, the pull rod is released, thus realizing the rapid reset of the sliding seat, and then the test operation of the next rubber ring can be carried out quickly. Among them, after the pull rod is released, the active thread assembly remains in contact with the lead screw under the action of the spring, and the internal thread on one side of the active thread assembly engages with the external thread on the lead screw, so that the thread fit between the two is realized. The structure of the present utility model is simple and the volume is small, which can be conveniently carried and transported, so that it is convenient to carry it to some specific sites (such as construction sites, production lines) and conduct on-site tests, meeting the requirements of on-site tests. During the test process of the present utility model, no electricity is required and it does not depend on power supply facilities, and the tensile test of the rubber ring can also be completed at some detection sites without power supply facilities.

[0010] Preferably, an annular groove is provided on the fixed column.

[0011] Preferably, the connecting piece includes a connecting base body, and a stretching boss is provided on the connecting base body.

[0012] Preferably, the cross section of the stretching boss is semi-circular.

[0013] Preferably, a lead screw connecting seat is provided on the base, and the lead screw connecting seat is located at both ends of the lead screw. Both ends of the lead screw are respectively rotatably connected to the lead screw connecting seat.

[0014] Preferably, a protective cover is slidably connected to the base. Chute grooves are respectively provided on both sides of the base, and guiding flanges are respectively provided on both sides of the protective cover. The guiding flanges on both sides of the protective cover are slidably connected in the chute grooves on both sides of the base.

[0015] Preferably, the protective cover is made of acrylic material.

[0016] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple and its volume is small and compact, which can be conveniently carried and transported, so that it can be easily carried to some specific sites (such as construction sites, production lines) for on-site testing, meeting the requirements of on-site testing. During the testing process of the present utility model, no electricity is required and it does not rely on power supply facilities, and the tensile test of the rubber ring can also be completed at some detection sites without power supply facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the fixed column.

[0019] Figure 3 It is a schematic structural diagram of the connecting member.

[0020] Figure 4 It is a cross-sectional view of the sliding seat.

[0021] Figure 5 It is a schematic structural diagram of the movable thread assembly.

[0022] Figure 6 It is a schematic structural diagram of the protective cover.

[0023] In the figure: 1. Base, 2. Fixed column, 2a. Annular groove, 3. Guide rail, 4. Sliding seat, 4a. Through hole for lead screw, 4b. Guide groove, 5. Pull rod, 6. Tensile meter, 7. Connecting member, 7a. Connecting base, 7b. Tensile boss, 8. Lead screw, 9. Lead screw connecting seat, 10. Knob, 11. Chute, 12. Protective cover, 12a. Guide flange, 13. Movable thread assembly, 13a. Internal thread, 14. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "one" cannot be understood as a limitation on the number.

[0026] As shown Figure 1-6 in the figure, a rubber ring tensile testing device includes a base 1, on which there are a fixed column 2 and a guide rail 3. A sliding seat 4 corresponding to the fixed column 2 is slidably connected to the guide rail 3. A tensiometer 6 is provided on the sliding seat 4. One end of the tensiometer 6 is connected to the sliding seat 4, and the other end of the tensiometer 6 is provided with a connecting piece 7. Both sides of the rubber ring to be tested are respectively sleeved on the fixed column 2 and the connecting piece 7. A lead screw 8 is rotatably connected to the base 1. The lead screw 8 is parallel to the guide rail 3. A lead screw through hole 4a is provided on the sliding seat 4, and the lead screw 8 passes through the lead screw through hole 4a. One end of the lead screw 8 is provided with a knob 10. A guide groove 4b is provided on the sliding seat 4. The guide groove 4b is located on one side of the lead screw through hole 4a. An active thread assembly 13 is slidably connected in the guide groove 4b. An internal thread 13a matching the lead screw 8 is provided on the side of the active thread assembly 13 close to the lead screw 8. A spring 14 is provided between the other side of the active thread assembly 13 and the groove wall of the guide groove 4b. A pull rod 5 is connected to the active thread assembly 13.

[0027] In the present utility model, the tensiometer 6 is arranged on the sliding seat 4 on the side close to the fixed column 2, and one end of the pull rod 5 extends to the outside of the sliding seat 4. During the test, first, both sides of the rubber ring to be tested are respectively sleeved on the fixed column 2 and the connecting piece 7. Then, the operator manually rotates the lead screw 8. By the rotation of the lead screw 8, the sliding seat 4 is driven to move away from the fixed column 2. During the movement of the sliding seat 4, the rubber ring is gradually stretched. The operator observes the reading of the tensiometer 6. When the rubber ring is broken, the value of the tensiometer 6 is recorded, and this value is the tensile breaking force of the rubber ring. When the tensile test of the rubber ring is completed, the operator pulls the pull rod 5 outwards. The pull rod 5 drives the active thread assembly 13 to move away from the lead screw 8, so that the internal thread 13a on the active thread assembly 13 is disengaged from the external thread on the lead screw 8. Then, the operator pushes the sliding seat 4 to move along the direction of the guide rail 3 and slides it to the initial position. When the sliding seat 4 reaches the initial position, the pull rod 5 is released, thus realizing the rapid reset of the sliding seat 4, and then the test operation of the next rubber ring can be carried out quickly. Among them, after the pull rod 5 is released, the active thread assembly 13 remains in contact with the lead screw 8 under the action of the spring 14, and the internal thread 13a on one side of the active thread assembly 13 engages with the external thread on the lead screw 8, realizing the thread fit between the two. The present utility model has a simple structure and a small volume, can be conveniently carried and transported, so as to be easily carried to some specific sites (such as construction sites, production lines) and conduct on-site tests, meeting the requirements of on-site tests. During the test process of the present utility model, no electricity is required, and it does not depend on power supply facilities, and the tensile test work of the rubber ring can also be completed at some detection sites without power supply facilities.

[0028] It is worth mentioning that the tensiometer 6 used in this application is a mechanical tensiometer 6 and does not require electricity during use.

[0029] The fixed column 2 is provided with an annular groove 2a. When one side of the rubber ring is sleeved on the fixed column 2, the rubber ring is embedded in the annular groove 2a on the fixed column 2, and the position of the rubber ring is restricted by the annular groove 2a to prevent the position of the rubber ring on the fixed shaft from shifting.

[0030] The connecting member 7 includes a connecting base body 7a, and a stretching boss 7b is provided on the connecting base body 7a. Among them, the cross-section of the stretching boss 7b is semi-circular. When a tensile test is performed on the rubber ring, one side of the rubber ring is sleeved on the stretching boss 7b.

[0031] The base 1 is provided with screw rod connecting seats 9, and the screw rod connecting seats 9 are located at both ends of the screw rod 8. Both ends of the screw rod 8 are rotatably connected to the screw rod connecting seats 9 respectively.

[0032] A protective cover 12 is slidably connected to the base 1. Chute grooves 11 are respectively provided on both sides of the base 1, and guiding flanges 12a are respectively provided on both sides of the protective cover 12. The guiding flanges 12a on both sides of the protective cover 12 are slidably connected in the chute grooves 11 on both sides of the base 1. The protective cover 12 can slide along the chute, and the protective cover 12 is switched between an open state and a protective state by sliding the protective cover 12; when the protective cover 12 is in the open state, its state is as Figure 1 shown. The protective cover 12 slides to one side of the base 1, and neither the fixed column 2 nor the sliding seat 4 is covered by the protective cover 12. At this time, it is convenient to install the rubber ring to be tested between the fixed column 2 and the connecting member 7; during the detection, the protective cover 12 slides to the protective state. At this time, the protective cover 12 covers the rubber ring in the test state, so as to prevent the rubber ring from popping out around and injuring the nearby operators after being broken.

[0033] In this embodiment, the protective cover 12 is made of acrylic material. Acrylic is a transparent material. While the protective cover 12 plays a protective role, the operator can clearly observe the changes of the rubber ring during the test through the protective cover 12.

[0034] The present utility model is not limited to the above-mentioned optimal implementation manner. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has a technical solution identical or similar to the present application, it falls within the protection scope of the present utility model.

Claims

1. A rubber ring stretching test device, characterized in that, It includes a base, on which there are fixed columns and guide rails. A sliding seat corresponding to the fixed columns is slidably connected to the guide rails. A tensiometer is provided on the sliding seat. One end of the tensiometer is connected to the sliding seat, and a connecting piece is provided at the other end of the tensiometer. Both sides of the rubber ring to be tested are respectively sleeved on the fixed column and the connecting piece; a lead screw is rotatably connected to the base. The lead screw is parallel to the guide rail. A lead screw through hole is provided on the sliding seat, and the lead screw passes through the lead screw through hole; a knob is provided at one end of the lead screw. A guide groove is provided on the sliding seat. The guide groove is located on one side of the lead screw through hole. An active thread assembly is slidably connected in the guide groove. An internal thread matching the lead screw is provided on the side of the active thread assembly close to the lead screw. A spring is provided between the other side of the active thread assembly and the groove wall of the guide groove; a pull rod is connected to the active thread assembly.

2. The rubber ring stretching test device according to claim 1, characterized in that, An annular groove is provided on the fixed column.

3. A rubber ring stretching test device according to claim 1, characterized in that, The connecting piece includes a connecting base body, and a stretching boss is provided on the connecting base body.

4. A rubber ring tensile test device according to claim 3, wherein, The cross-section of the stretching boss is semicircular.

5. A rubber ring stretching test device according to claim 1, characterized in that, A lead screw connecting seat is provided on the base. The lead screw connecting seat is located at both ends of the lead screw, and both ends of the lead screw are respectively rotatably connected to the lead screw connecting seat.

6. The rubber ring stretching test device according to claim 1, characterized in that, A protective cover is slidably connected to the base. Chute are respectively provided on both sides of the base, and guide flanges are respectively provided on both sides of the protective cover. The guide flanges on both sides of the protective cover are slidably connected in the chute on both sides of the base.

7. The rubber ring stretching test device according to claim 6, characterized in that, The protective cover is made of acrylic material.

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