A railcar test platform

Abstract

A test platform for a reversing railcar includes a test platform, running guide rails, alignment guide rails, a limiting mechanism, and a positioning mechanism. The test platform has a recessed center forming a forward-backward extending running channel, with alignment bosses formed on the left and right sides of the running channel. Forward-backward extending running guide rails are respectively provided on the left and right sides of the bottom of the running channel. At least two alignment guide rails are provided on the alignment bosses; each alignment guide rail on the two alignment bosses is aligned in a one-to-one correspondence with the left side. When testing using this test platform, the reversing railcar can move forward and backward along the running guide rails in the running channel, simulating the movement of the reversing railcar between parallel tracks during actual operation. This allows the reversing railcar to move forward and backward along the running guide rails in the running channel, simulating the movement, braking, and alignment of the reversing railcar between parallel tracks during actual operation; thereby testing the functions that need to be verified during the operation of the reversing railcar, in order to improve the factory quality.

Description

Technical Field

[0001] This utility model relates to the technical field of rail vehicles, and in particular to a rail vehicle test platform. Background Technology

[0002] When transporting goods within a logistics warehouse, forklifts, gantry cranes, or ground railcars are typically used to transfer and transport the goods in order to reduce the labor intensity of workers handling them.

[0003] Railcar systems in large logistics warehouses typically consist of several parallel tracks. These tracks require reversing railcars to switch tracks, allowing the railcars to move along different tracks. The reversing railcars have rails on their top surfaces, allowing them to move back and forth between the parallel tracks and align with the ground tracks, thus transferring the railcar from one track to another. However, existing reversing railcars are difficult to test in the field after manufacturing, making it impossible to ensure that the alignment accuracy and other product performance aspects meet requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a test platform for railcars to facilitate the testing of reversing railcars, which has the advantage of ensuring the quality of products leaving the factory.

[0005] To achieve the above objectives, the solution of this utility model is: A test platform for a railcar includes a test platform, a running guide rail, a rail alignment guide rail, a limiting mechanism, and a positioning mechanism; The test platform has a recessed center to form a running channel that extends forward and backward, and rail-aligning bosses are formed on the left and right sides of the running channel, respectively. The bottom left and right sides of the running channel are respectively provided with running guide rails extending forward and backward; at least two guide rails are provided on the guide rail protrusions; the guide rails on the two guide rail protrusions are aligned in a one-to-one correspondence between the left and right sides. A limiting mechanism is provided on the front and rear sides of the left or right side wall of the running channel; a positioning mechanism is provided in the middle of the left and right side walls of the running channel. The positioning mechanism includes a positioning seat with a concave hole, and the concave holes of the two positioning seats are arranged opposite each other.

[0006] Furthermore, the guide rails on the guide rail protrusion are 2n, where n is a natural number greater than 1. The 2n guide rails are divided into n groups with different front and rear spans, and each group has two guide rails that are symmetrically distributed front and rear relative to the center line of the test platform.

[0007] Furthermore, the limiting mechanism includes a top plate, a side plate, and two inclined plates; the top plate extends front and rear, and the front and rear ends of the top plate are respectively provided with downwardly bent inclined plates, and the side plate is located below the side of the top plate near the side wall of the running channel; the side plate is provided with two mounting holes spaced front and rear; the side wall of the running channel is provided with two connecting pieces spaced front and rear respectively corresponding to the installation position of the limiting mechanism, the connecting piece includes a fixing part and a connecting part that are perpendicularly connected to each other, the fixing part is vertically fixed to the side wall of the running channel, the connecting part is parallel to and abuts against the side plate of the limiting mechanism, and the connecting part is provided with a vertical strip hole that runs front and rear, the vertical strip hole is opposite to the mounting hole located on the side plate, and a locking adjusting bolt passes through the mounting hole and the vertical strip hole.

[0008] Furthermore, the two sides of the running guide rail and the rail alignment guide rail are detachably installed and fixed by several rail clamping components.

[0009] Furthermore, the rail clamping assembly includes a base, a rail clamper, a wedge plate, bolts, and nuts. The base is fixed to the running channel of the test platform or the rail alignment boss. One side of the top of the base has a connecting boss with a locking hole in the center. The other side of the top of the base has a limiting boss, forming an adjustment space between the connecting boss and the limiting boss. The rail clamper slides on the top of the connecting boss. The center of the rail clamper has a vertically penetrating strip-shaped hole that aligns with the locking hole on the connecting boss. The bolt head engages with the locking hole. Below the hole, the bolt shank passes upward through the locking hole and the strip hole and is locked to the nut. The rail clamp can slide along the connecting boss within the range of the strip hole in the direction of approaching or moving away from the limiting boss. One side of the rail clamp has a locking part located outside the connecting boss. This locking part is used to vertically press and laterally press the guide rail. The lower part of the other side of the rail clamp has an abutment surface located in the adjustment space and recessed towards the locking part. The wedge plate is inserted into the adjustment space and is located between the abutment surface of the rail clamp and the limiting boss.

[0010] After adopting the above technical solution, when testing using this test platform, the reversing railcar can move back and forth along the running guide rail in the running channel to simulate the movement of the reversing railcar between parallel tracks during actual operation. During the test, when the reversing railcar moves back and forth, the limit switch at the bottom of the reversing railcar can be triggered by the limit mechanism and generate a control signal to cause the reversing railcar to decelerate, brake, and finally stop at the predetermined position. Therefore, the limit switch is set to be able to pass through the limit mechanism. When the reversing railcar stops, the two electric telescopic push rods at the bottom of the reversing railcar can extend and insert into the recesses of the two positioning seats. At the same time, the reversing guide rails on them should be aligned with the two pairs of guide rails on the two side rail alignment bosses. In this way, the test platform can simulate the movement, braking, and alignment of the reversing railcar between parallel tracks during actual operation. This allows for testing of the functions that need to be verified during the operation of the reversing railcar (such as main / backup power switching, automatic control mode testing, precise rail alignment function, position over-limit, emergency stop, fault stop, etc.) to improve the factory quality of the reversing railcar. Attached Figure Description

[0011] Figure 1 This is a perspective view of an embodiment of the present utility model; Figure 2 This is a top view of an embodiment of the present utility model; Figure 3 This is a front view of an embodiment of the present utility model; Figure 4 This is a front view during testing of an embodiment of this utility model; Figure 5 This is a top view during testing of an embodiment of the present invention; Figure 6 for Figure 1 Enlarged view of point A; Figure 7 for Figure 1 Enlarged view of point B; Figure 8 for Figure 4 Enlarged view of point C; Figure 9 This is a schematic diagram of the rail clamping assembly according to an embodiment of the present invention.

[0012] Labeling Description: Test Platform 1, Running Channel 11, Alignment Boss 12, Connecting Plate 13, Fixing Part 131, Connecting Part 132, Vertical Strip Hole 133, Running Guide Rail 2, Alignment Guide Rail 3, Limiting Mechanism 4, Top Plate 41, Side Plate 42, Mounting Hole 421, Inclined Plate 43, Positioning Mechanism 5, Recessed Hole 51, Positioning Seat 52, Rail Pressing Assembly 6, Base 61, Connecting Boss 611, Snap-fit ​​Fixing Hole 612, Limiting Boss 613, Adjustment Space 614, Rail Presser 62, Strip Hole 621, Snap-fit ​​Part 622, Abutment Surface 623, Wedge Plate 63, Bolt 64, Nut 65, Spring Washer 66, Flat Washer 67, Reversing Rail Cart 10, Wheel Set 101, Reversing Guide Rail 102, Limit Switch 103, Electric Telescopic Push Rod 104. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] like Figures 1 to 3 As shown, a test platform for a railcar in this embodiment includes a test platform 1, a running guide rail 2, a rail alignment guide rail 3, a limiting mechanism 4, and a positioning mechanism 5.

[0015] The test platform 1 has a recessed center to form a running channel 11 that extends forward and backward, and a rail-aligning boss 12 is formed on the left and right sides of the running channel 11.

[0016] The bottom left and right sides of the running channel 11 are respectively provided with running guide rails 2 extending forward and backward; the rail alignment boss 12 is provided with at least two rail alignment guide rails 3. The rail alignment guide rails 3 on the two rail alignment bosses 12 are aligned in a one-to-one correspondence between the left and right sides.

[0017] A limiting mechanism 4 is provided on the front and rear sides of the left or right side wall of the running channel 11; a positioning mechanism 5 is provided in the middle of the left and right side walls of the running channel 11. The positioning mechanism 5 includes a positioning seat 52 with a concave hole 51, and the concave holes 51 of the two positioning seats 52 are arranged opposite each other.

[0018] See Figure 4 and Figure 5The test platform 1 is used to conduct performance testing experiments on the reversing track vehicle 10; the bottom of the reversing track vehicle 10 has a wheel set 101 that slides on the running guide rail 2, the top surface of the reversing track vehicle 10 is flush with the top surface of the rail-aligning boss 12, and the top surface of the reversing track vehicle 10 is provided with two reversing guide rails 102 that are spaced apart front and back; the bottom left or right side of the reversing track vehicle 10 has a limit switch 103 that is movably matched with the limiting mechanism 4, and the bottom left and right sides of the reversing track vehicle 10 respectively have an electric telescopic push rod 104 that is movably matched with the recess 51 of the positioning seat 52.

[0019] Therefore, when testing using this test platform 1, the reversing track vehicle 10 can move back and forth along the running guide rail 2 in the running channel 11 to simulate the movement of the reversing track vehicle 10 between parallel tracks during actual operation. During the test, when the reversing track vehicle 10 moves back and forth, the limit switch 103 can be triggered by the limit mechanism 4 (e.g., Figure 6 The limit switch 103 is configured to extend beyond the limit mechanism 4 and generate a control signal to decelerate and brake the reversing railcar 10 to a predetermined position. When the reversing railcar 10 stops, the two electrically operated telescopic push rods 104 at the bottom of the reversing railcar 10 can extend and insert into the recesses 51 of the two positioning seats 52 (e.g., ...). Figure 7 and Figure 8 At the same time, the guide rail 102 on it should be aligned with the two pairs of guide rails 3 on the two side guide bosses 12 (e.g.) Figure 5 ).

[0020] Therefore, through this test platform 1, the movement, braking, and alignment of the reversing railcar 10 between parallel tracks during actual operation can be simulated; thereby testing the functions that need to be verified during the operation of the reversing railcar 10 (such as main and backup power switching, automatic control mode testing, precise alignment function, position over-limit, emergency stop, fault stop, etc.) to improve the factory quality of the reversing railcar 10.

[0021] The guide rails 3 on the guide rail boss 12 can be 2n, where n is a natural number greater than 1. These 2n guide rails 3 can be divided into n groups with different front and rear spans, and each group has two guide rails 3 symmetrically distributed relative to the centerline of the test platform 1. In this embodiment, four guide rails 3 are provided on the guide rail boss 12, and these four guide rails 3 are divided into two groups with different front and rear spans. Therefore, the test platform 1 can test reversing railcars 10 with different span reversing guide rails 102, thus improving its practicality.

[0022] like Figure 6In this embodiment, the limiting mechanism 4 includes a top plate 41, a side plate 42, and two inclined plates 43. The top plate 41 extends front to back, and the inclined plates 43 are respectively provided at the front and rear ends of the top plate 41. The side plate 42 is located below the side of the top plate 41 near the side wall of the running channel 11. The side plate 42 is provided with two mounting holes 421 spaced apart front to back. The side wall of the running channel 11 is provided with two connecting pieces 13 spaced apart front to back at the mounting positions of the limiting mechanism 4. The connecting pieces 13 can be "L" shaped and include fixing parts 13 that are perpendicularly connected to each other. The connecting part 132 and the fixing part 131 are vertically welded and fixed to the side wall of the running channel 11. The connecting part 132 is parallel to the side plate 42 of the limiting mechanism 4, and the connecting part 132 is provided with a vertical strip hole 133 that runs through the front and back. The vertical strip hole 133 corresponds to the mounting hole 421 located on the side plate 42. Locking adjustment bolts (not shown) can be inserted into the mounting hole 421 and the vertical strip hole 133. Thus, the limiting mechanism 4 can be installed on the side wall of the running channel 11 through two connecting pieces 13, and the upper and lower positions of the limiting mechanism 4 can be adjusted by adjusting the bolts.

[0023] In this way, when the reversing railcar 10 moves back and forth, the limit switch 103 can touch the inclined plate 43 of the limit mechanism 4 to trigger the control signal, and continue to move back and forth along the top plate 41 during the deceleration process.

[0024] In this embodiment, the two sides of the running guide rail 2 and the rail-aligning guide rail 3 can be detachably installed and fixed by a number of rail-pressing components 6, which can improve the stability of the guide rail after installation and facilitate guide rail replacement.

[0025] Specifically, such as Figure 9 As shown, the rail clamping assembly 6 includes a base 61, a rail clamping device 62, a wedge plate 63, a bolt 64, and a nut 65. The base 61 can be welded or fixed to the running channel 11 or the rail alignment boss 12 of the test platform 1 by other means. One side of the top of the base 61 has a connecting boss 611, and the middle of the connecting boss 611 has a locking hole 612. The other side of the top of the base 61 has a limiting boss 613. An adjustment space 614 is formed between the connecting boss 611 and the limiting boss 613. The rail clamp 62 is slidably attached to the top of the connecting boss 611. The rail clamp 62 has a vertically penetrating strip hole 621 in the middle. The strip hole 621 is aligned with the snap-fit ​​fixing hole 612 located on the connecting boss 611. The head of the bolt 64 is snapped into the bottom of the snap-fit ​​fixing hole 612. The shank of the bolt 64 passes upward through the snap-fit ​​fixing hole 612 and the strip hole 621 and is then locked to the nut 65. A spring washer 66 and a flat washer 67 can also be provided between the nut 65 and the top surface of the rail clamp 62 to improve the fixing effect.

[0026] The rail clamp 62 can slide along the connecting boss 611 within the range of the strip hole 621 in the direction of approaching or moving away from the limiting boss 613; one side of the rail clamp 62 has a locking part 622 located outside the connecting boss 611, which is used to realize vertical pressing and lateral pressing of the running guide rail 2 or the guide rail 3; the other side of the rail clamp 62 has an abutment surface 623 located in the adjustment space 614 and recessed towards the locking part 622; the wedge plate 63 is inserted into the adjustment space 614 and is located between the abutment surface 623 of the rail clamp 62 and the limiting boss 613, which can push the rail clamp 62 towards the guide rail, ensuring the lateral pressing effect of the locking part 622 of the rail clamp 62 against the guide rail.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, equivalent changes and modifications without departing from the principle of this utility model should still fall within the protection scope of this utility model.

[0028] In the description of the embodiments of this application, it should be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships commonly used when the product is in use, or the orientations or positional relationships commonly understood by those skilled in the art. These are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this application, "a plurality of" and "several" mean two or more, unless otherwise explicitly specified.

Claims

1. A railcar test platform, characterized in that: This includes a testing platform, running guide rails, alignment guide rails, limit mechanisms, and positioning mechanisms; The test platform has a recessed center to form a running channel that extends forward and backward, and rail-aligning bosses are formed on the left and right sides of the running channel, respectively. The bottom left and right sides of the running channel are respectively provided with running guide rails extending forward and backward; at least two guide rails are provided on the guide rail protrusions; the guide rails on the two guide rail protrusions are aligned in a one-to-one correspondence between the left and right sides. A limiting mechanism is provided on the front and rear sides of the left or right side wall of the running channel; a positioning mechanism is provided in the middle of the left and right side walls of the running channel. The positioning mechanism includes a positioning seat with a concave hole, and the concave holes of the two positioning seats are arranged opposite each other.

2. The railcar test platform according to claim 1, characterized in that: The guide rails on the guide rail boss are 2n, where n is a natural number greater than 1. The 2n guide rails are divided into n groups with different front and rear spans, and each group has two guide rails that are symmetrically distributed front and rear relative to the center line of the test platform.

3. The railcar test platform according to claim 1, characterized in that: The limiting mechanism includes a top plate, a side plate, and two inclined plates. The top plate extends forward and backward, and the inclined plates are respectively bent downward at the front and rear ends of the top plate. The side plate is located below the side of the top plate near the side wall of the running channel. The side plate has two mounting holes spaced apart forward and backward. The side wall of the running channel has two connecting pieces spaced apart forward and backward at the mounting positions of the limiting mechanism. The connecting pieces include a fixing part and a connecting part that are perpendicularly connected to each other. The fixing part is vertically fixed to the side wall of the running channel, and the connecting part is parallel to and abuts against the side plate of the limiting mechanism. The connecting part has a vertical strip hole that runs forward and backward. The vertical strip hole corresponds to the mounting hole located on the side plate. Locking adjustment bolts are inserted into the mounting hole and the vertical strip hole.

4. The railcar test platform according to claim 1, characterized in that: The two sides of the running guide rail and the alignment guide rail are detachably installed and fixed by several rail clamping components.

5. A railcar test platform according to claim 4, characterized in that: The rail clamping assembly includes a base, a rail clamp, a wedge plate, bolts, and nuts; The base is fixed to the running channel or the rail alignment boss of the test platform. One side of the top of the base has a connecting boss with a locking hole in the middle. The other side of the top of the base has a limiting boss, and an adjustment space is formed between the connecting boss and the limiting boss. The rail clamp slides on the top of the connecting boss. The middle of the rail clamp has a vertically penetrating strip hole. The strip hole is aligned with the snap-fit ​​fixing hole located on the connecting boss. The bolt head is snapped into the bottom of the snap-fit ​​fixing hole. The bolt shank passes upward through the snap-fit ​​fixing hole and the strip hole and is then locked to the nut. The rail clamp can slide along the connecting boss within the range of the strip hole in the direction of approaching or moving away from the limiting boss. The rail presser has a locking part on one side located outside the connecting boss. This locking part is used to vertically press and laterally tighten the running guide rail or the rail guide rail. The lower part of the other side of the rail presser has an abutment surface located in the adjustment space and recessed towards the locking part. The wedge plate is inserted into the adjustment space and is located between the abutment surface of the rail presser and the limiting boss.

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