Rapid sample mounting device in mechanical property test of rubber support

Abstract

The utility model relates to the technical field of rubber supports, and discloses a rapid sample mounting device in a mechanical property test of a rubber support, which comprises a mold frame, the mold frame is a rectangular frame, positioning rods penetrate through the middle positions of the four side edges of the mold frame, scales are marked on the positioning rods, a locking bolt is mounted at the upper end of the mold frame, and the locking bolt is connected with the mold frame. The lower end of the locking bolt penetrates through the mold frame and abuts against the side wall of the positioning rod. The utility model solves the problems that the existing rubber support mounting method lacks accuracy and consumes long time.

Description

Technical Field

[0001] This utility model relates to the field of rubber bearing technology, specifically a rapid sample installation device for testing the mechanical properties of rubber bearings. Background Technology

[0002] Plate rubber bearings, as an important type of bridge bearing, possess excellent seismic performance and cushioning effect, and are widely used in building construction, bridge engineering, and subway engineering. To ensure that plate rubber bearings perform optimally in engineering projects, it is necessary to conduct mechanical property tests on them. During these tests, the accuracy of specimen installation significantly impacts the results. Standards require that the specimen be aligned with the center and on the same vertical plane as the central axis of the testing machine's bearing plate, with an accuracy of less than 1% of the specimen's short side dimension. Currently, the industry uses a method of manually measuring the distance by calculation for specimen installation, which lacks precision, is time-consuming, and significantly affects the accuracy of the test results. Utility Model Content

[0003] To address the problems of the prior art, this invention provides a rapid sample installation device for testing the mechanical properties of rubber bearings, solving the problems of insufficient accuracy and long installation time in existing rubber bearing installation methods.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid sample installation device for mechanical performance testing of rubber bearings, comprising a mold frame, the mold frame being a rectangular frame, with positioning rods passing through the middle positions of the four sides of the mold frame, the positioning rods being marked with scales, a locking bolt being installed at the upper end of the mold frame, and the lower end of the locking bolt passing through the mold frame and abutting against the side wall of the positioning rod.

[0005] With the above structural design, this device utilizes a freely retractable positioning rod to quickly position the sample on the testing machine's support plate, greatly saving time. Compared to traditional manual measurement methods, it has the advantages of reducing measurement errors, improving installation accuracy, and thus enhancing testing precision.

[0006] Preferably, a limiting plate is fixedly connected to one end of the positioning rod near the center of the mold frame, and a spring is sleeved on the positioning rod, with the spring located between the limiting plate and the inner sidewall of the mold frame.

[0007] With the above structural design, the spring acts as a reset mechanism, making it easy for staff to adjust the position of the positioning rod.

[0008] Preferably, a circular rubber head is installed at the end of the positioning rod near the center of the mold frame.

[0009] With the above structural design, when the positioning rod is close to the rubber support, the round rubber head can prevent the positioning rod from hitting the rubber support.

[0010] Preferably, a limit strip is symmetrically fixedly connected to the side wall of the positioning rod along the length direction.

[0011] The above structural design incorporates a limit bar to prevent the positioning rod from rotating arbitrarily, while also increasing stability when the positioning rod is pulled.

[0012] Preferably, a positioning plate is fixedly connected to the outer wall of the mold frame, and the lower end of the positioning plate extends beyond the lower edge of the mold frame.

[0013] With the above structural design, when the mold frame is placed on the bearing plate of the testing machine, the four positioning plates are close to the four outer walls of the bearing plate, so that the mold frame can be accurately placed on the bearing plate and the outer walls of the mold frame and the bearing plate are on the same plane. At this time, the center of the mold frame coincides with the center of the bearing plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This device utilizes a freely retractable positioning rod to quickly position the sample on the testing machine's support plate, significantly saving time. Compared to traditional manual measurement methods, it offers advantages such as reduced measurement errors, improved installation accuracy, and thus enhanced testing precision. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning rod of this utility model. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1 to 2This utility model provides a technical solution: a rapid sample installation device for testing the mechanical properties of rubber bearings, comprising a mold frame 1, which is a metal frame with a certain rigidity. The size of the mold frame 1 is the same as that of the bearing plate of the testing machine. Through holes are formed in the middle of the four sides of the mold frame 1, through which positioning rods 2 pass and can slide back and forth. The positioning rods 2 are marked with graduations. A locking bolt 5 is installed at the upper end of the mold frame 1, and the lower end of the locking bolt 5 passes through the mold frame 1 and abuts against the side wall of the positioning rod 2. The locking bolt 5 is threadedly connected to the mold frame 1, and can fix the positioning rod 2 relative to the mold frame 1. This device utilizes the freely extendable positioning rod 2 to quickly position the sample on the bearing plate of the testing machine, greatly saving time. Compared with traditional manual measurement methods, it has the advantages of reducing measurement errors, improving installation accuracy, and thus improving test precision.

[0020] One end of the positioning rod 2 near the center of the mold frame 1 is fixedly connected to a limiting spacer 6. A spring 3 is sleeved on the positioning rod 2, and the spring 3 is located between the limiting spacer 6 and the inner wall of the mold frame 1. The spring 3 serves a reset function, making it convenient for workers to adjust the position of the positioning rod 2.

[0021] A circular rubber head 7 is installed at the end of the positioning rod 2 near the center of the mold frame 1. When the positioning rod 2 is close to the rubber support, the circular rubber head 7 can prevent the positioning rod 2 from hitting the rubber support.

[0022] Limiting strips 9 are symmetrically fixedly connected to the side wall of the positioning rod 2 along its length. The limiting strips 9 prevent the positioning rod 2 from rotating arbitrarily and increase the stability when the positioning rod 2 is pulled.

[0023] A positioning plate 8 is fixedly connected to the outer wall of the mold frame 1, and the lower end of the positioning plate 8 extends beyond the lower edge of the mold frame 1. When the mold frame 1 is placed on the bearing plate of the testing machine, the four positioning plates 8 are close to the four outer walls of the bearing plate, so that the mold frame 1 can be accurately placed on the bearing plate, ensuring that the outer walls of the mold frame 1 and the outer walls of the bearing plate are on the same plane, and at this time the center of the mold frame 1 coincides with the center of the bearing plate.

[0024] Working principle: The operator first places the mold frame 1 on the bearing plate of the testing machine. At this time, the four positioning plates 8 are close to the four outer walls of the bearing plate, so that the mold frame 1 can be accurately placed on the bearing plate and the outer wall of the mold frame 1 and the outer wall of the bearing plate are on the same plane. The adjustment distance of the positioning rod 2 is calculated according to the size of the test sample. The positioning rod 2 is pulled out to a certain length through the scale on the positioning rod 2 and locked by the locking bolt 5. Then the test sample is placed in the middle of the ends of the four positioning rods 2. At this time, the test sample is located in the center of the bearing plate of the testing machine. Then the device can be removed from the bearing plate.

[0025] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fast installation specimen device in the mechanical performance test of rubber bearing, characterized in that: The utility model relates to a kind of mould frame, including mould frame (1), the mould frame (1) is rectangular frame, the middle position of four sides of the mould frame (1) is passed through with positioning rod (2), the positioning rod (2) is marked with scale, the upper end of the mould frame (1) is equipped with locking bolt (5), the lower end of the locking bolt (5) passes through the mould frame (1) and is in abutment with the side wall of the positioning rod (2).

2. The device according to claim 1, wherein: The end of the positioning rod (2) close to the center position of the mould frame (1) is fixedly connected with a limiting spacer (6), the positioning rod (2) is sleeved with a spring (3), and the spring (3) is located between the limiting spacer (6) and the inner side wall of the mould frame (1).

3. The device according to claim 1, wherein: The end of the positioning rod (2) close to the center position of the mould frame (1) is equipped with a circular rubber head (7).

4. The device according to claim 1, wherein: The side wall of the positioning rod (2) is fixedly connected with a limiting strip (9) symmetrically along the length direction.

5. The device of claim 1, wherein: The outer side wall of the mould frame (1) is fixedly connected with a positioning plate (8), and the lower end of the positioning plate (8) exceeds the lower edge of the mould frame (1).

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