A high-speed linear motion track testing device

Abstract

The invention discloses a high-speed linear motion track testing device, comprising a frame, a rotary encoder position speed detection device, the rotary encoder position speed detection device is installed with the left end of the frame, a fixed pulley block 1 is arranged in the frame, a steel wire rope 1 is connected to the fixed pulley block 1, a transition wheel 1 is arranged at the right end of the steel wire rope 1, and a movable pulley block 1 is arranged on the right side of the transition wheel 1; a steel wire rope 2 is connected to the movable pulley block 1, a transition wheel 2 is arranged at the right end of the steel wire rope 2, a fixed pulley block 2 is arranged below the steel wire rope 2, a movable pulley block 2 is arranged on the right side of the transition wheel 2, a hydraulic transmission oil cylinder is arranged on the right side of the movable pulley block 2, and a photoelectric detection switch is arranged above the movable pulley block 2. The invention can accelerate to 120m / s in a very short distance and time, and decelerate and brake in a very short distance and time, and can accurately detect and control the position and speed when running at high speed, and accelerate and decelerate, run and brake smoothly.

Description

Technical Field

[0001] The invention relates to the technical field of linear motion speed measuring devices, in particular to a high-speed linear motion track testing device. Background Art

[0002] The high-speed linear motion track test device needs to decelerate and brake in a very short distance and time. At the high speed of 120m / s, it is difficult to effectively control the moving acceleration, speed and position due to the mechanical structure and system response. At present, there is no similar high-speed linear motion track test system. Therefore, the present invention provides a high-speed linear motion track test device to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide a high-speed linear motion track testing device to solve the problems raised in the above-mentioned background technology, such as high-speed motion testing of "fly-by wireless broadband communication device and antenna".

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A high-speed linear motion track testing device comprises a frame and a rotary encoder position speed detection device, wherein the rotary encoder position speed detection device is installed at the left end of the frame, a fixed pulley block is arranged in the frame, a steel wire rope is connected to the fixed pulley block, a transition wheel is arranged at the right end of the steel wire rope, and a movable pulley block is arranged on the right side of the transition wheel;

[0006] The movable pulley block 1 is connected to a steel wire rope 2, a transition wheel 2 is arranged at the right end of the steel wire rope 2, a fixed pulley block 2 is arranged below the steel wire rope 2, a movable pulley block 2 is arranged on the right side of the transition wheel 2, a hydraulic transmission cylinder is arranged on the right side of the movable pulley block 2, and a photoelectric detection switch is arranged above the movable pulley block 2.

[0007] The fixed pulley block, movable pulley block and steel wire rope are symmetrically arranged on both sides of the frame based on the center line to form a closed-loop motion system.

[0008] Preferably: a moving trolley guide rail is arranged on the upper part of the inner wall of the frame, and a moving trolley roller guard plate is arranged on the upper end of the moving trolley guide rail.

[0009] Preferably: a moving trolley is arranged between the two moving trolley roller guard plates.

[0010] Preferably, a movable pulley block guide rail 1 is arranged in the frame, and a movable pulley block guide rail 2 is arranged below one side of the movable pulley block guide rail 1.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The invention can accelerate to 120m / s in a very short distance and time, decelerate and brake in a very short distance and time, accurately detect and control the position and speed when running at high speed, and accelerate, decelerate, run and brake smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the planar structure of a high-speed linear motion track testing device provided in an embodiment of the present application.

[0014] Figure 2 It is a structural schematic diagram of a movable pulley guide rail 1 in a high-speed linear motion track testing device provided in an embodiment of the present application.

[0015] Figure 3 It is a structural schematic diagram of a movable pulley block guide rail 2 in a high-speed linear motion track testing device provided in an embodiment of the present application.

[0016] In the figure: 1, rotary encoder position speed detection device; 2, fixed pulley block 1; 3, frame; 4, wire rope 1; 401, transition wheel 1; 5, movable pulley block 1; 6, wire rope 2; 601, transition wheel 2; 7, fixed pulley block 2; 8, movable pulley block 2; 9, hydraulic transmission cylinder;

[0017] 10. Roller guard for mobile trolley; 11. Mobile trolley; 12. Guide rail 1 for movable pulley block; 13. Guide rail for mobile trolley; 14. Guide rail 2 for movable pulley block; 15. Photoelectric detection switch; DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 3 In an embodiment of the present invention, a high-speed linear motion track testing device includes a frame 3 and a rotary encoder position speed detection device 1. A moving trolley guide rail 13 is provided on the upper inner wall of the frame 3, a moving trolley roller guard plate 10 is provided on the upper end of the moving trolley guide rail 13, a moving trolley 11 is provided between two moving trolley roller guard plates 10, a movable pulley block guide rail 12 is provided in the frame 3, and a movable pulley block guide rail 2 14 is provided below one side of the movable pulley block guide rail 12;

[0020] The rotary encoder position speed detection device 1 is installed at the left end of the frame 3, a fixed pulley block 2 is arranged in the frame 3, a steel wire rope 4 is connected to the fixed pulley block 2, a transition wheel 401 is arranged at the right end of the steel wire rope 4, and a movable pulley block 5 is arranged on the right side of the transition wheel 401;

[0021] The movable pulley block 1 5 is connected to a steel wire rope 2 6, a transition wheel 2 601 is arranged at the right end of the steel wire rope 2 6, a fixed pulley block 2 7 is arranged below the steel wire rope 2 6, a movable pulley block 2 8 is arranged on the right side of the transition wheel 2 601, a hydraulic transmission cylinder 9 is arranged on the right side of the movable pulley block 2 8, and a photoelectric detection switch 15 is arranged above the movable pulley block 2 8;

[0022] The device is a mechanical device for testing a high-speed mobile communication system (such as a high-speed motion test of a "fly-by wireless broadband communication device and antenna"), comprising a frame 3, a movable pulley block, a fixed pulley block, a rotary encoder position speed detection device 1, a photoelectric detection switch 15, a mobile trolley 11, a hydraulic transmission cylinder 9, etc.;

[0023] The fixed pulleys and the like in the device are all symmetrical with respect to the center line;

[0024] The test device is driven by a high-speed movable hydraulic transmission cylinder 9, and the speed is increased by the connected wire rope and two sets of movable and fixed pulleys; the two sets of fixed pulleys are fixed in the frame 3, and the two sets of movable pulleys are respectively installed on two sets of guide rails in the frame 3, and the movable pulleys can move linearly along their respective guide rails under the traction of the wire rope; the wire rope is fixed to the mobile trolley 11 and drags the mobile trolley 11 to move linearly along the guide rails on the frame 3, and the mobile trolley 11 is used to install the tested components of the high-speed mobile communication system.

[0025] When the hydraulic transmission cylinder 9 moves, the movable pulley block 2 8 is directly driven to move on the track through the connecting rod. One end of the wire rope 26 is fixed on the wheel frame of the fixed pulley block 27, and the other end is connected to the guide rail of the movable pulley block 5 through the movable pulley block 28, the roller of the fixed pulley block 27 and the transition wheel 2601, and drags the movable pulley block 5 to move on the guide rail; one end of the wire rope 14 is fixed on the wheel frame of the fixed pulley block 2, and the other end is connected to the other symmetrical end of the test device through the movable pulley block 5, the roller of the fixed pulley block 2 and the transition wheel 401 and the roller on the rotary encoder position speed detection device 1. The moving trolley 11 is fixed to the wire rope 14, and when the movable pulley block 5 moves, it drives the wire rope 14 to move, so that the moving trolley 11 moves linearly along the guide rail on the frame 3, and the moving speed changes with the change of the moving speed of the hydraulic transmission cylinder 9.

[0026] The roller on the rotary encoder position and speed detection device 1 rotates driven by the wire rope 4, and is decelerated by the synchronous belt and the synchronous pulley, driving the rotary encoder position and speed detection device 1 to rotate synchronously, and the moving speed, acceleration and deceleration and position of the mobile cart 11 on the track are controlled by the signal of the high-precision rotary encoder position and speed detection device 1; taking into account the possible errors caused by the high-speed movement of the mobile cart 11 and the detection of the rotary encoder position and speed detection device 1, a group of photoelectric detection switches 15 are also installed in the middle of the detection device, which can directly detect the position and moving speed of the mobile cart 11 on the guide rail, and this group of photoelectric detection switches 15 can be synchronized with the photoelectric signal receiving switch of the detected element "such as the "fly-by wireless broadband communication device and antenna" and other high-speed wireless communication systems" to ensure the detection accuracy and control reliability.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-speed linear motion track testing device, comprising a frame (3), a rotary encoder position speed detection device (1), characterized in that: The rotary encoder position speed detection device (1) is installed at the left end of the frame (3), a fixed pulley block (2) is arranged in the frame (3), a steel wire rope (4) is connected to the fixed pulley block (2), a transition wheel (401) is arranged at the right end of the steel wire rope (4), and a movable pulley block (5) is arranged on the right side of the transition wheel (401); The movable pulley block 1 (5) is connected to a steel wire rope 2 (6), a transition wheel 2 (601) is arranged at the right end of the steel wire rope 2 (6), a fixed pulley block 2 (7) is arranged below the steel wire rope 2 (6), a movable pulley block 2 (8) is arranged on the right side of the transition wheel 2 (601), a hydraulic transmission cylinder (9) is arranged on the right side of the movable pulley block 2 (8), and a photoelectric detection switch (15) is arranged above the movable pulley block 2 (8); A moving trolley guide rail (13) is provided on the inner wall of the frame (3), and a moving trolley roller guard plate (10) is provided on the upper end of the moving trolley guide rail (13); A movable pulley block guide rail 1 (12) is arranged in the frame (3), and a movable pulley block guide rail 2 (14) is arranged below one side of the movable pulley block guide rail 1 (12).

2. A high-speed linear motion track testing device according to claim 1, characterized in that: A moving trolley (11) is arranged between the two moving trolley roller guard plates (10).

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