Tensile and compressible bidirectional clamping jaw tooth block of testing machine

Abstract

The utility model provides a tension-compression bidirectional testing machine clamping jaw tooth block, relates to the technical field of metal material or part mechanical property detection equipment, solves the problem that the cost is high when the existing tension-compression bidirectional testing machine tests steel rails of different models, and comprises a steel rail, a movable clamping seat, an oil cylinder seat and a front fixing plate, four supporting columns and a movable clamping base are installed between the front fixing plate and the oil cylinder base, a rail head clamping oil cylinder is installed on the upper end face of the movable clamping base, a rail waist clamping oil cylinder is installed on one side of the movable clamping base, a main oil cylinder is installed on the back of the oil cylinder base, a support is installed on the lower end face of the oil cylinder base, and the rail waist clamping oil cylinder is connected with a pair of rail waist clamping bases. The rail head clamping oil cylinder is connected with a pair of rail head clamping seats, the pair of rail web clamping seats and the pair of rail head clamping seats are respectively provided with a tong mouth tooth block, and each tong mouth tooth block is composed of a plurality of tooth plates. According to the device, the test cost of a manufacturer is reduced, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical property testing equipment for metal materials or parts, and more specifically relates to a clamping jaw tooth block of a testing machine capable of pulling and pressing in both directions. Background Art

[0002] Railway tracks typically consist of two parallel rails mounted on sleepers via a railway fastener system, with ballast or ballastless track slabs beneath them. Railway tracks are subject to a variety of static and dynamic loads in the vertical, lateral, and longitudinal directions. These loads are then transferred from the rails to the roadbed via the sleepers and the roadbed. To ensure the lifespan of the railway tracks, their mechanical properties must be tested before installation. For example, Publication No. CN103940673B discloses a longitudinal tension and compression testing machine for railway tracks that can clamp and test rails. The jaws can also be replaced to accommodate different rail specifications.

[0003] Based on the above, the inventors have found the following problems: the current bidirectional tensile and compressive testing machines have high costs for testing different types of rails. Depending on the specifications and models of the rails, different types of jaw tooth blocks need to be replaced for testing, which reduces the efficiency of the test. In order to prevent the jaw tooth blocks from being worn and unable to test, the manufacturer must stock different types of jaw tooth blocks, and each type of jaw tooth block needs to be stocked in multiples, which increases the manufacturer's testing costs.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a testing machine clamping jaw tooth block capable of tension and compression is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a clamping jaw tooth block of a testing machine capable of tension and compression, so as to solve the problem that the current testing machine capable of tension and compression has a high cost when testing different types of rails.

[0006] The purpose and function of the clamping jaw tooth block of the testing machine capable of tension and compression are achieved by the following specific technical means:

[0007] A testing machine capable of bidirectional tension and compression has a clamping jaw tooth block, comprising a rail, a movable clamping seat, a cylinder seat and a front fixed plate; four pillars and a movable clamping seat are installed between the front fixed plate and the cylinder seat; a rail head clamping oil cylinder is installed on the upper end face of the movable clamping seat; a rail waist clamping oil cylinder is installed on one side of the movable clamping seat; a main oil cylinder is installed on the back of the cylinder seat; a bracket is installed on the lower end face of the cylinder seat; a pair of rail waist clamping seats are connected and installed to the rail waist clamping oil cylinder; a pair of rail head clamping seats are connected and installed to the rail head clamping oil cylinder; jaw tooth blocks are installed on the pair of rail waist clamping seats and the pair of rail head clamping seats; the jaw tooth blocks are composed of multiple tooth plates.

[0008] Furthermore, the bottom of the rail waist clamping seat and the rail head clamping seat are both provided with limiting grooves, one side of the tooth plate is provided with a boss, and the other side of the tooth plate is provided with a groove, and the tooth plate can be assembled and installed with the groove and the limiting groove through the boss.

[0009] Furthermore, a section of the rail is placed in a movable clamping seat, and a pair of rail waist clamping seats are respectively arranged at the rail waist on both sides of the rail.

[0010] Furthermore, a pair of rail head clamping seats are respectively arranged on the upper and lower end surfaces of the rail.

[0011] Furthermore, a slide groove is provided on one side of the rail waist clamping seat and the rail head clamping seat, a movable platform is installed in the slide groove, and through holes for bolts to pass through are penetrated on the movable platform and the tooth plate.

[0012] Furthermore, a slider is provided on one side of the movable platform, and threaded holes are provided at the bottoms of the rail waist clamping seat and the rail head clamping seat, and the threaded holes engage with the bolt threads.

[0013] Furthermore, the tooth plate is made of low-carbon high-alloy steel.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By using tooth plates, rail waist clamping seats, rail head clamping seats, movable platforms and bolts in combination, different numbers of tooth plates are selected for combined installation according to different types of rails. Multiple tooth plates can be combined through grooves and bosses, and the multiple tooth plates are clamped by the bottom of the movable platform and the rail waist clamping seat. Bolts are passed through the through holes on the movable platform and the multiple tooth plates and cooperate with the threaded holes to fix the multiple tooth plates into jaw tooth blocks. The rail head clamping seat is also assembled through the above steps, so that a pair of rail waist clamping seats and a pair of rail head clamping seats can clamp the rails from all sides, thereby achieving the effect of changing the size of the jaw tooth blocks by changing the number of tooth plates to clamp different types of rails, thereby achieving the purpose of reducing the cost of manufacturers using bidirectional tensile and compressive testing machines for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional schematic diagram of a clamping jaw tooth block of a testing machine capable of pulling and pressing in both directions.

[0017] Figure 2 The utility model is a three-dimensional schematic diagram of a clamping jaw tooth block of a testing machine capable of pulling and pressing in both directions.

[0018] Figure 3 The utility model is a schematic diagram of the interior of a movable clamping seat of a clamping jaw tooth block of a testing machine capable of pulling and pressing in both directions.

[0019] Figure 4 The utility model is a schematic diagram of a rail waist clamping seat of a testing machine clamping jaw tooth block capable of tension and compression in both directions.

[0020] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0021] 1. Rail; 2. Movable clamping seat; 3. Rail head clamping cylinder; 4. Rail waist clamping cylinder; 5. Cylinder seat; 6. Front fixed plate; 301. Rail head clamping seat; 401. Rail waist clamping seat; 402. Movable platform; 403. Jaw tooth block; 404. Slide; 405. Slider; 406. Tooth plate; 407. Threaded hole; 408. Bolt; 409. Limiting groove; 501. Pillar; 502. Bracket; 503. Main cylinder. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To the attached Figure 4 As shown:

[0027] The utility model provides a testing machine clamping jaw tooth block capable of tension and compression in both directions, comprising a rail 1, a movable clamping seat 2, a cylinder seat 5 and a front fixed plate 6, four pillars 501 and a movable clamping seat 2 are installed between the front fixed plate 6 and the cylinder seat 5, a rail head clamping oil cylinder 3 is installed on the upper end surface of the movable clamping seat 2, a rail waist clamping oil cylinder 4 is installed on one side of the movable clamping seat 2, a main oil cylinder 503 is installed on the back of the cylinder seat 5, a bracket 502 is installed on the lower end surface of the cylinder seat 5, and a pair of rail waist clamping oil cylinders 4 are connected and installed. The waist clamping seat 401 can start the rail waist clamping cylinder 4 to control a pair of rail waist clamping seats 401. The rail head clamping cylinder 3 is connected to and installed with a pair of rail head clamping seats 301. The rail head clamping cylinder 3 can be started to control a pair of rail head clamping seats 301. A pair of rail waist clamping seats 401 and a pair of rail head clamping seats 301 are both installed with jaw tooth blocks 403. The jaw tooth blocks 403 are composed of multiple tooth plates 406. The jaw tooth blocks 403 are modular and can adapt to the sizes of different types of rails 1 by adjusting the number of tooth plates 406.

[0028] Among them, the rail waist clamping seat 401 and the rail head clamping seat 301 are both provided with limiting grooves 409 at the bottom, and a boss is provided on one side of the tooth plate 406, and a groove is provided on the other side of the tooth plate 406. The tooth plate 406 can be assembled and installed with the groove and the limiting groove 409 through the boss, so that the structure of multiple tooth plates 406 is compact when assembled, which is convenient for subsequent fixing with bolts 408.

[0029] Among them, a section of the rail 1 is placed in the movable clamping seat 2, and a pair of rail waist clamping seats 401 are respectively arranged at the rail waist on both sides of the rail 1. The pair of rail waist clamping seats 401 can clamp the rail 1 from both sides.

[0030] Among them, a pair of rail head clamping seats 301 are respectively arranged on the upper and lower end surfaces of the rail 1. The pair of rail head clamping seats 301 can clamp the rail 1 from the upper and lower directions, making the clamping of the rail 1 more stable and facilitating subsequent tension and compression tests.

[0031] Among them, a slide groove 404 is provided on one side of the rail waist clamping seat 401 and the rail head clamping seat 301, and a movable platform 402 is installed in the slide groove 404. The movable platform 402 and the tooth plate 406 are penetrated by through holes for bolts 408 to pass through. Multiple tooth plates 406 are installed between the movable platform 402 and the rail waist clamping seat 401 or the rail head clamping seat 301 to form a jaw tooth block 403.

[0032] Among them, a slider 405 is provided on one side of the movable platform 402, and the movable platform 402 can slide in the slide groove 404 through the slider 405. The bottom of the rail waist clamping seat 401 and the rail head clamping seat 301 are both provided with threaded holes 407, and the threaded holes 407 are threadedly engaged with the bolts 408. They are combined by the bolts 408, so that the multiple tooth plates 406 are installed firmly and can clamp the rail 1.

[0033] The tooth plate 406 is made of low-carbon high-alloy steel, has good wear resistance, and can be used for a longer time.

[0034] The specific usage and function of this embodiment are as follows:

[0035] Before the test begins, the integrity of the equipment is inspected and it can be used only after it is checked. Before the test begins, different numbers of tooth plates 406 are selected according to different types of rails 1 for assembly and installation. Multiple tooth plates 406 can be assembled through grooves and bosses, and multiple tooth plates 406 are clamped through the bottom of the movable platform 402 and the rail waist clamping seat 401. Bolts 408 are passed through the through holes on the movable platform 402 and the multiple tooth plates 406, and matched with the threaded holes 407 to fix the multiple tooth plates 406 into a fixed combination. The jaw tooth block 403 can clamp the rail 1, and the rail head clamping seat 301 is also assembled using the above steps. The rail 1 is passed through the front fixed plate 6 and placed in the movable clamping seat 2, so that a pair of rail waist clamping seats 401 and a pair of rail head clamping seats 301 can clamp the rail 1 from all sides. Through the above steps, the number of tooth plates 406 can be adjusted to change the size of the jaw tooth block 403, and different types of rails 1 can be clamped, which reduces the cost of manufacturers using a testing machine that can be used for tension and compression for testing and improves the efficiency of testing.

[0036] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A testing machine clamping jaw tooth block capable of tension and compression, comprising a rail (1), a movable clamping seat (2), a cylinder seat (5) and a front fixed plate (6), four pillars (501) and a movable clamping seat (2) are installed between the front fixed plate (6) and the cylinder seat (5), a rail head clamping cylinder (3) is installed on the upper end face of the movable clamping seat (2), a rail waist clamping cylinder (4) is installed on one side of the movable clamping seat (2), a main cylinder (503) is installed on the back of the cylinder seat (5), and a bracket (502) is installed on the lower end face of the cylinder seat (5), characterized in that: The rail waist clamping oil cylinder (4) is connected to and installed with a pair of rail waist clamping seats (401), and the rail head clamping oil cylinder (3) is connected to and installed with a pair of rail head clamping seats (301). Both the pair of rail waist clamping seats (401) and the pair of rail head clamping seats (301) are installed with jaw tooth blocks (403), and the jaw tooth blocks (403) are composed of multiple tooth plates (406).

2. A clamping jaw tooth block for a testing machine capable of tension and compression as claimed in claim 1, characterized in that: The rail waist clamping seat (401) and the rail head clamping seat (301) are both provided with a limiting groove (409) at the bottom, one side of the tooth plate (406) is provided with a boss, and the other side of the tooth plate (406) is provided with a groove, and the tooth plate (406) can be assembled and installed with the groove and the limiting groove (409) through the boss.

3. The clamping jaw tooth block of a testing machine capable of tension and compression as claimed in claim 1, characterized in that: A section of the steel rail (1) is placed in a movable clamping seat (2), and a pair of rail waist clamping seats (401) are respectively arranged at the rail waist on both sides of the steel rail (1).

4. The clamping jaw tooth block of a testing machine capable of tension and compression as claimed in claim 1, characterized in that: A pair of rail head clamping seats (301) are respectively arranged on the upper and lower end surfaces of the rail (1).

5. The clamping jaw tooth block of a testing machine capable of tension and compression as claimed in claim 1, characterized in that: A slide groove (404) is provided on one side of the rail waist clamping seat (401) and the rail head clamping seat (301), a movable platform (402) is installed in the slide groove (404), and a through hole for the bolt (408) to pass through is penetrated on the movable platform (402) and the tooth plate (406).

6. A clamping jaw tooth block for a testing machine capable of tension and compression as claimed in claim 5, characterized in that: A slider (405) is provided on one side of the movable platform (402), and threaded holes (407) are provided at the bottoms of the rail waist clamping seat (401) and the rail head clamping seat (301), and the threaded holes (407) are threadedly engaged with bolts (408).

7. The clamping jaw tooth block of a testing machine capable of tension and compression as claimed in claim 1, characterized in that: The tooth plate (406) is made of low-carbon high-alloy steel.

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