A device for testing the bearing capacity of a plastic track gauge baffle

Abstract

The application provides a plastic track gauge baffle pressure-bearing performance testing device and relates to the technical field of railway accessory detection. The application provides a plastic track gauge baffle pressure-bearing performance testing device and relates to the technical field of railway accessory detection. The application provides a plastic track gauge baffle pressure-bearing performance testing device and relates to the technical field of railway accessory detection.

Description

Technical Field

[0001] This invention relates to the field of railway component testing technology, and in particular to a device for testing the compressive strength of plastic gauge plates. Background Technology

[0002] As a key component of railway tracks, track gauge baffles must withstand the periodic pressure generated by train operation. The most common material for plastic track gauge baffles is nylon engineering plastics, such as glass fiber reinforced nylon and chemically foamed nylon. Through material innovation and structural optimization, nylon track gauge baffles have surpassed metal baffles in terms of lightweight, corrosion resistance, insulation, and maintenance costs, and have become the preferred choice for fastening systems in high-speed and heavy-haul railways.

[0003] For the research and development and manufacturing of track gauge baffles made of nylon material, compressive strength is an important performance characteristic. This compressive strength performance needs to be tested by a pressure strength tester. However, when using a traditional strength tester for testing track gauge baffles, due to the special structure and small width of the track gauge baffles, the traditional strength tester is not easy to hold them securely. The clamping process is cumbersome and not suitable for testing the compressive strength performance of a large number of track gauge baffles. Summary of the Invention

[0004] This invention provides a device for testing the compressive strength of plastic track gauge baffles. This addresses the issue that compressive strength is a crucial performance characteristic for the research and manufacturing of nylon track gauge baffles, and this performance needs to be tested using a pressure strength tester. However, when using traditional material testing strength testers to test track gauge baffles, the baffles' unique structure and narrow width make it difficult for the traditional testers to securely clamp them, resulting in cumbersome clamping procedures and making them unsuitable for large-scale testing of the compressive strength of track gauge baffles.

[0005] This invention provides a device for testing the pressure-bearing performance of plastic track gauge baffles, specifically comprising: a test base, a placement platform fixedly connected to the top of the test base, a positioning roller plate installed inside the test base by screws, a shifting drive component installed at the center of the top surface of the placement platform's inner cavity by screws, a shifting rotary table above the placement platform, the rotating shaft end of the shifting drive component fixedly connected to the center of the shifting rotary table, a partitioned test platform structure above the shifting rotary table, the partitioned test platform having four partitioned test positions, an outer edge support fixedly connected above each of the four partitioned test positions, four test top platforms movably connected to the top of the partitioned test platform, and four track gauge baffle pressure plates slidably connected to the partitioned test platform. The test platform has a slidable limiting pressure plate above it, which covers the gauge baffle frame. A pressure test push cylinder is fixedly connected above the test base and is located inside the placement platform cavity. A pressure sensor is fixedly connected to the top of the push rod of the pressure test push cylinder, and a test vertical top plate is fixedly connected to the top of the pressure sensor. The pressure test push cylinder is located directly behind the shifting drive component. A pressure display panel is fixedly connected to the top of the test base and is connected to the pressure sensor via an electrical connection line. A pressure plate top cylinder is rotatably connected to the end of the limiting pressure plate away from the center of the shifting stage, and the pressure plate top cylinder located directly behind is rotatably connected to a positioning roller.

[0006] Furthermore, the upper surface edge of the placement platform is rotatably connected to an auxiliary support wheel via a support shaft, and the outer wheel surface of the auxiliary support wheel is provided with an auxiliary wheel groove.

[0007] Furthermore, the rotating platform is parallel to the upper surface of the placement platform, and a rotating platform flange is provided on the outer edge of the rotating platform, with the rotating platform flange being rolledly connected to the auxiliary wheel groove.

[0008] Furthermore, the test position above the partition test platform is vertically penetrated by a "U"-shaped top platform guide, and the bottom of the test platform is fixedly connected to a "U"-shaped top platform support rod, which is slidably connected to the top platform guide.

[0009] Furthermore, the test position above the partition test bench has two pressure frame guides that are vertically penetrating it, and the two pressure frame guides are located at both ends of the outer edge support.

[0010] Furthermore, the gauge baffle pressure frame is provided with pressure frame guide plates at both ends, the pressure frame guide plates are slidably connected to the pressure frame guide port, the bottom of the pressure frame guide plate is fixedly connected to the pressure frame reset spring, and the top of the pressure frame reset spring is fixedly connected to the bottom surface of the shifting rotary table.

[0011] Furthermore, a pressure plate guide is fixedly connected to the upper surface of the test position above the shifting table, and the edge of the limiting pressure plate is slidably connected to the pressure plate guide.

[0012] Furthermore, the inner end of the limiting pressure plate is bent upward to form a pressure plate flange, and the upper edge of the gauge baffle pressure frame is provided with a pressure frame wedge with an inclined structure, which fits against the pressure plate flange.

[0013] Furthermore, a reset top spring is fixedly connected to one end of the limiting pressure plate away from the center of the shifting table, and the other end of the reset top spring is fixedly connected to the shifting table.

[0014] This invention provides a device for testing the compressive strength of plastic track gauge baffles, which has the following advantages: The pressure testing device in this invention is specifically designed for testing the pressure-bearing performance of gauge plates. During the test, as the limiting pressure plate pushes the gauge plate pressure frame downwards, the gauge plate pressure frame covers the top of the gauge plate. The bottom outer edge support bar clamps one edge of the gauge plate, and the contours of the gauge plate pressure frame and the outer edge support bar align with the contours of the outer surface of the gauge plate, tightly clamping the edge of the gauge plate. Then, the pressure testing push cylinder pushes the pressure sensor, the test vertical top plate, and the test top platform upwards. As the test top platform moves upwards, it applies an upward thrust to the other edge of the gauge plate, applying pressure. The pressure sensor detects the pressure and displays the pressure value on the pressure display panel. If the gauge plate does not break when the pressure reaches the set acceptable force value, then the gauge plate is a qualified product that has passed the pressure-bearing performance test; otherwise, it is a unqualified product.

[0015] In addition, the shifting stage of the present invention has four detection positions above it. Driven by the shifting drive component, the lower circulation passes under the vertical test top plate to reach the detection area. During the pressure test of the gauge baffle at the position, the gauge baffle located in the detection position in front of the shifting stage can be disassembled and replaced, making the detection workflow more compact and reasonably improving the efficiency of batch detection.

[0016] In addition, it has an automatic clamping function for the gauge baffle. In the detection position located in front of the shifting table, the limiting pressure plate separates from the upper surface of the gauge baffle pressure frame under the elastic force of the reset top spring. Under the action of the pressure frame reset tension spring, the gauge baffle pressure frame is pulled up to increase the distance between itself and the outer edge support, so that the gauge baffle can be easily installed onto the outer edge support and accurately positioned on the upper surface of the test top platform. As the shifting table rotates, when this detection position is moved to above the pressure test push cylinder, the pressure plate top cylinder behind this detection position rolls and connects with the positioning roller, and moves the pressure plate top cylinder into the shifting table. As the pressure plate moves in the direction of the center, the pressure plate flange slides against the wedge flange of the pressure frame, automatically pushing the gauge baffle pressure frame downwards, thus automatically fixing the gauge baffle. After the test is completed, with the rotation of the shift table, the gauge baffle pressure frame and the limiting pressure plate are reset under the action of the pressure frame reset spring and reset top spring, releasing the fixation of the gauge baffle and facilitating the disassembly of the gauge baffle after the test. The pressure bearing performance testing device of this application has an automatic loading and unloading function for gauge baffles, reducing the tediousness of manual operation and improving the efficiency of batch testing of multiple workpieces. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure of this application is shown; Figure 2 A top view of the structure of this application is shown; Figure 3 A schematic diagram of the structure of the placement platform of this application is shown; Figure 4 This application shows Figure 3 A schematic diagram of the left-side view structure; Figure 5 This diagram shows the structural schematic of the test platform, gauge baffle, and limiting pressure plate of this application when disassembled. Figure 6 This application shows Figure 5 A structural diagram from the bottom view; Figure 7 A schematic diagram of the structure of the placement platform of this application is shown; Figure 8 A schematic diagram of the structure of the pressure plate top cylinder of this application is shown; Figure 9 A schematic diagram of the gauge baffle pressure frame of this application is shown; Figure 10 This application shows Figure 3A magnified structural diagram of point A in the middle.

[0020] Figure label: 1. Test base; 101. Positioning roller; 102. Placement platform; 103. Auxiliary support roller; 104. Auxiliary wheel groove; 2. Positioning drive component; 3. Positioning rotating table; 301. Rotating table flange; 302. Zoned test table; 303. Top platform guide; 304. Outer edge support bar; 305. Pressure frame guide; 306. Pressure plate guide; 4. Test top platform; 401. Top platform support rod; 5. Track gauge baffle pressure frame; 501. Pressure frame guide support plate; 502. Pressure frame reset tension spring; 503. Pressure frame wedge flange; 6. Limiting pressure plate; 601. Pressure plate folded flange; 602. Pressure plate top cylinder; 603. Reset top spring; 7. Pressure test push cylinder; 8. Pressure sensor; 9. Test vertical top plate; 10. Pressure display panel. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1 to 9 : This invention proposes a device for testing the pressure-bearing performance of plastic track gauge baffles, comprising: a test base 1, a placement platform 102 fixedly connected above the test base 1, a positioning roller 101 installed inside the test base 1 by screws, a displacement drive 2 installed at the center of the top surface of the inner cavity of the placement platform 102 by screws, a displacement rotating platform 3 provided above the placement platform 102, the end of the rotating shaft of the displacement drive 2 fixedly connected to the center of the displacement rotating platform 3, a partitioned test platform 302 structure provided above the displacement rotating platform 3, the partitioned test platform 302 having four partitioned test positions, and an outer edge support 304 fixedly connected above each of the four partitioned test positions, for partitioned testing... Four test platforms 4 are movably connected to the top of the test bench 302. Four gauge baffle holders 5 are slidably connected to the partition test bench 302. Limiting pressure plates 6 are slidably connected above the partition test bench 302, covering the gauge baffle holders 5. A pressure test push cylinder 7 is fixedly connected to the top of the test base 1. The pressure test push cylinder 7 is located inside the cavity of the placement table 102. A pressure sensor 8 is fixedly connected to the top of the push rod of the pressure test push cylinder 7. A test vertical top plate 9 is fixedly connected to the top of the pressure sensor 8. The pressure test push cylinder 7 is located directly behind the displacement drive component 2. A pressure display panel 1 is fixedly connected to the top of the test base 1. 0. The pressure display panel 10 is connected to the pressure sensor 8 via an electrical connection wire. The end of the limiting pressure plate 6 furthest from the center of the shifting table 3 is rotatably connected to the pressure plate top cylinder 602. The pressure plate top cylinder 602 located directly behind is rotatably connected to the positioning roller 101. During the compressive strength test of the gauge baffle, as the limiting pressure plate 6 pushes the gauge baffle pressure frame 5, it moves downward. The gauge baffle pressure frame 5 covers the top of the gauge baffle, and together with the bottom outer edge support 304, it clamps one edge of the gauge baffle. The contours of the surface of the gauge baffle pressure frame 5 and the outer edge support 304 are aligned with the contours of the outer surface of the gauge baffle, thus securing the edge of the gauge baffle. The components are tightly clamped, and then the pressure test push cylinder 7 pushes the pressure sensor 8, the test vertical top plate 9, and the test top platform 4 upward. As the test top platform 4 moves upward, it applies an upward pushing force to the other edge of the gauge baffle, thus applying pressure to the gauge baffle. The pressure sensor 8 can detect the pressure and display the pressure value through the pressure display panel 10. If the gauge baffle does not break when the pressure reaches the set qualified force value, then the gauge baffle is a qualified product that has passed the pressure bearing performance test. If the gauge baffle breaks or bends, it means that the product is unqualified. The staff records the product qualification rate and can calculate the overall yield rate of the batch of products.

[0023] In this embodiment, the upper surface edge of the placement platform 102 is rotatably connected to an auxiliary support wheel 103 via a support shaft. The outer wheel surface of the auxiliary support wheel 103 is provided with an auxiliary wheel groove 104. The shifting table 3 is parallel to the upper surface of the placement platform 102. The outer edge of the shifting table 3 is provided with a table flange 301, which is tumbledly connected to the auxiliary wheel groove 104. The arrangement of the table flange 301 and the auxiliary support wheel 103 can enhance the support strength of the shifting table 3, improve the stability of the shifting table 3, and avoid damage caused by the tilting of the shifting table 3 due to the pushing of the pressure test cylinder 7 during the test.

[0024] In this embodiment of the disclosure, a U-shaped top platform guide 303 is vertically opened through the test position above the partition test platform 302. A U-shaped top platform support rod 401 is fixedly connected to the bottom of the test platform 4. The top platform support rod 401 is slidably connected to the top platform guide 303 and plays a guiding role.

[0025] In this embodiment, two pressure frame guide openings 305 are vertically penetrating the test position above the partition test platform 302. The two pressure frame guide openings 305 are located at both ends of the outer edge support 304. The gauge baffle pressure frame 5 is provided with pressure frame guide support plates 501 at both ends. The pressure frame guide support plates 501 are slidably connected to the pressure frame guide openings 305 to play a guiding role. The bottom of the pressure frame guide support plate 501 is fixedly connected to the pressure frame reset spring 502. The top of the pressure frame reset spring 502 is fixedly connected to the bottom surface of the shifting table 3. Under normal conditions, under the action of the pressure frame reset spring 502, the gauge baffle pressure frame 5 is pushed upward, so that there is a certain gap between the gauge baffle pressure frame 5 and the outer edge support 304, which is convenient for picking up and placing the gauge baffle to be tested. The bottom of the gauge baffle pressure frame 5 and the top of the outer edge support 304 are provided with structures that conform to the shape of the gauge baffle, which improves the clamping firmness of the gauge baffle.

[0026] In this embodiment, a pressure plate guide 306 is fixedly connected to the upper surface of the test position above the transposition table 3. The edge of the limiting pressure plate 6 is slidably connected to the pressure plate guide 306. The sliding connection between the pressure plate guide 306 and the limiting pressure plate 6 plays a guiding role, ensuring that the limiting pressure plate 6 slides straight above the transposition table 3.

[0027] In this embodiment, the inner end of the limiting pressure plate 6 is bent upward to form a pressure plate flange 601, and the upper edge of the gauge baffle pressure frame 5 is provided with a pressure frame wedge 503 with a sloping structure. The pressure frame wedge 503 fits against the pressure plate flange 601. When the limiting pressure plate 6 moves steadily backward with the rotation of the shift table 3, the pressure plate top cylinder 602 first contacts the positioning roller 101 and forms a rolling connection, and moves the limiting pressure plate 6 towards the center of the shift table 3. During the movement of the pressure plate flange 601, a sliding connection is formed with the pressure frame wedge 503. Under the action of the wedge surface, the gauge baffle pressure frame 5 is pushed vertically downward, so that the outline of the gauge baffle pressure frame 5 fits against the upper surface of the gauge baffle, thereby achieving clamping of the edge of the gauge baffle.

[0028] In Example 2, based on Example 1, a reset top spring 603 is fixedly connected to one end of the limiting pressure plate 6 away from the center of the shifting table 3, and the other end of the reset top spring 603 is fixedly connected to the shifting table 3. After the gauge baffle completes the test, the limiting pressure plate 6 moves away from the center of the shifting table 3 under the pushing action of the reset top spring 603, so that the gauge baffle pressure frame 5 is released from its contact with the limiting pressure plate 6. The gauge baffle pressure frame 5 moves upward under the action of the pressure frame reset tension spring 502, releasing the clamping of the gauge baffle, which facilitates the disassembly and removal of the gauge baffle.

[0029] The working principle of this embodiment is as follows: First, the shifting drive 2 is activated, which drives the shifting rotary table 3 to rotate intermittently by 90 degrees in a single rotation. The gauge baffle to be tested is installed in the test position located above and in front of the shifting rotary table 3, so that the two edges of the gauge baffle are respectively positioned above the outer edge support 304 and the test top platform 4. As the shifting rotary table 3 rotates, the gauge baffle to be tested is transported to the upper rear of the shifting rotary table 3. During this process, the pressure plate top cylinder 602 behind the test position is rolled and connected to the positioning roller 101, and the pressure plate top cylinder 602 moves towards the center of the shifting rotary table 3. As the pressure plate flange 601 slides with the pressure frame wedge flange 503, the gauge baffle pressure frame 5 is automatically pushed downward, thereby realizing the automatic fixing of the gauge baffle. Then, the pressure test push cylinder 7 is activated, which pushes the pressure sensor 8, the test vertical top plate 9, and the test top platform 4 upward. As the test platform 4 moves upward, it applies an upward thrust to the other edge of the gauge baffle, thus applying pressure to the gauge baffle. The pressure sensor 8 detects the pressure and displays the pressure value on the pressure display panel 10. If the gauge baffle does not break when the pressure reaches the set qualified force value, then the gauge baffle is a qualified product that has passed the pressure bearing performance test; otherwise, it is a unqualified product. After the test is completed, as the shifting table 3 continues to rotate, the pressure plate top cylinder 602 separates from the positioning roller 101. Under the pushing action of the reset top spring 603, the limiting pressure plate 6 moves away from the center of the shifting table 3, causing the gauge baffle pressure frame 5 to release from contact with the limiting pressure plate 6. Under the action of the pressure frame reset tension spring 502, the gauge baffle pressure frame 5 moves upward, releasing the clamping of the gauge baffle. The operator then removes and disassembles the gauge baffle and installs the untested gauge baffle.

[0030] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A device for testing the compressive strength of a plastic track gauge baffle, comprising: A test base (1) is characterized in that a placement platform (102) is fixedly connected above the test base (1), a positioning roller (101) is installed inside the test base (1) by screws, a shifting drive (2) is installed at the center of the top surface of the inner cavity of the placement platform (102) by screws, a shifting rotary table (3) is provided above the placement platform (102), the rotating shaft end of the shifting drive (2) is fixedly connected to the center of the shifting rotary table (3), a partitioned test platform (302) structure is provided above the shifting rotary table (3), the partitioned test platform (302) is provided with four partitioned test positions, and an outer edge support (304) is fixedly connected above each of the four partitioned test positions. (302) Four test platforms (4) are movably connected to the top. Four gauge baffles (5) are slidably connected to the partition test platform (302). A limiting plate (6) is slidably connected above the partition test platform (302). The limiting plate (6) covers the gauge baffles (5). A pressure test cylinder (7) is fixedly connected above the test base (1). The pressure test cylinder (7) is located inside the cavity of the placement platform (102). A pressure sensor (8) is fixedly connected to the top of the push rod of the pressure test cylinder (7). A test vertical top plate (9) is fixedly connected to the top of the pressure sensor (8). The pressure test cylinder (7) is located directly behind the shifting drive (2). A pressure display panel (10) is fixedly connected to the top of the test base (1). The pressure display panel (10) is connected to the pressure sensor (8) via an electrical connection line. A pressure plate top cylinder (602) is rotatably connected to one end of the limiting pressure plate (6) away from the center of the shifting table (3). The pressure plate top cylinder (602) located directly behind is rotatably connected to the positioning roller (101). A pressure plate guide frame (306) is fixedly connected to the upper surface of the test position above the shifting table (3). The edge of the limiting pressure plate (6) is slidably connected to the pressure plate guide frame (306). A "U"-shaped top platform guide opening (303) is vertically opened through the test position above the partition test platform (302). The bottom of the test platform (4) is fixedly connected to the pressure plate top cylinder (303). A U-shaped top support rod (401) is fixedly connected to the top platform support rod (401), which is slidably connected to the top platform guide (303). The gauge baffle pressure frame (5) is provided with pressure frame guide support plates (501) at both ends. The pressure frame guide support plates (501) are slidably connected to the pressure frame guide (305). The bottom of the pressure frame guide support plate (501) is fixedly connected to the pressure frame reset spring (502). The top of the pressure frame reset spring (502) is fixedly connected to the bottom surface of the shifting rotary table (3). The inner end of the limiting pressure plate (6) is bent upward to form a pressure plate flange (601). The upper edge of the gauge baffle pressure frame (5) is provided with a pressure frame wedge (503) with a sloping structure. The pressure frame wedge (503) is in contact with the pressure plate flange (601).

2. The pressure-bearing performance testing device for a plastic track gauge baffle according to claim 1, characterized in that, The upper surface edge of the placement platform (102) is rotatably connected to an auxiliary support wheel (103) via a support shaft, and the outer wheel surface of the auxiliary support wheel (103) is provided with an auxiliary wheel groove (104).

3. The pressure-bearing performance testing device for a plastic track gauge baffle according to claim 2, characterized in that, The rotating platform (3) is parallel to the upper surface of the placement platform (102). The outer edge of the rotating platform (3) is provided with a rotating platform flange (301), which is rolledly connected to the auxiliary wheel groove (104).

4. The pressure-bearing performance testing device for a plastic track gauge baffle according to claim 1, characterized in that, The test position above the partition test bench (302) has two pressure frame guides (305) that are vertically penetrating, and the two pressure frame guides (305) are located at both ends of the outer edge support (304).

5. The pressure-bearing performance testing device for a plastic track gauge baffle according to claim 1, characterized in that, The limiting pressure plate (6) is fixedly connected to a reset top spring (603) at one end away from the center of the shifting table (3), and the other end of the reset top spring (603) is fixedly connected to the shifting table (3).

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