Safety blocking device for high-speed test trolley

Abstract

The utility model relates to a safety blocking device for a high-speed test trolley. The safety blocking device comprises a blocking cable, a guide and guard device and a damping device, the guiding and guarding device comprises a guiding and guarding device A and a guiding and guarding device B which are symmetrically arranged; the damping device comprises a damping device A corresponding to the guide and guard device A and a damping device B corresponding to the guide and guard device B; the damping device A and the damping device B are symmetrically arranged; one end of the arresting cable penetrates through the guide and guard device A to be connected with the damping device A, and the other end of the arresting cable penetrates through the guide and guard device B to be connected with the damping device B; the damping device A and the damping device B work synchronously, and the arresting cable winding drum A and the arresting cable winding drum B rotate synchronously, so that the arresting cable is retracted and released; the arresting cable is passively controlled to be released to stop the high-speed test trolley.

Description

Technical Field

[0001] The utility model relates to a safety blocking device for a high-speed test vehicle, belonging to the technical field of high-speed running carrier experiments. Background Art

[0002] In many tests, high-speed test vehicles are often used to carry the objects under test. During the test, the high-speed test vehicle passes through the acceleration section, the uniform speed test section, and then decelerates and brakes. Under normal circumstances, when the high-speed test vehicle approaches the test section to the deceleration and braking section, it slows down by its own brakes and brakes at the predetermined position. If the vehicle brakes fail completely or partially, the vehicle and the object under test will be damaged by the collision. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a safety blocking device for reliably and non-damagingly stopping a high-speed test vehicle.

[0004] The utility model adopts the following technical solutions:

[0005] The utility model comprises an arresting cable, a guide device and a damping device; the guide device comprises a guide device A and a guide device B which are symmetrically arranged; the damping device comprises a damping device A corresponding to the guide device A and a damping device B corresponding to the guide device B; the damping device A and the damping device B are symmetrically arranged; one end of the arresting cable passes through the guide device A and is connected to the damping device A, and the other end of the arresting cable passes through the guide device B and is connected to the damping device B.

[0006] The damping device A of the utility model comprises a base, a driving motor reducer A installed on the base, an electromagnetic clutch A, a magnetic powder brake A, a reduction box A and an arresting cable drum A; the transmission shaft A of the driving motor reducer A is connected to one end of the electromagnetic clutch A, the other end of the electromagnetic clutch A is connected to the transmission shaft B of the reduction box A, the other end of the transmission shaft B is connected to the magnetic powder brake A through a coupling A, the transmission shaft C of the reduction box A is connected to the shaft of the arresting cable drum A, one end of the arresting cable is wound on the arresting cable drum A; the structure of the damping device A is the same as that of the damping device B; the other end of the arresting cable is wound on the arresting cable drum B.

[0007] The guide device A of the utility model comprises a frame, a vertical pulley A and a horizontal pulley B installed on the frame, wherein the vertical pulley A is arranged on one side of the horizontal pulley B; the axes of the vertical pulley A and the horizontal pulley B are perpendicular.

[0008] The electromagnetic clutch A of the utility model is a tooth-type electromagnetic clutch A.

[0009] The model of the magnetic powder brake A of the utility model is: FZ200.

[0010] The model of the reduction box A of the utility model is: ZLY224-20-VIII.

[0011] The barrier rope of the utility model is a galvanized steel wire rope with a breaking force of 140KN and a diameter of 16mm. The barrier rope drum A and the barrier rope drum B are both steel wire rope drums.

[0012] The model of the drive motor reducer A of the utility model is: K38-V0.37-4P-10.49-M1.

[0013] The positive effects of the utility model are as follows: the damping device A and the damping device B of the utility model work synchronously, and the arresting cable drum A and the arresting cable drum B rotate synchronously to realize the retracting and releasing of the arresting cable; the arresting cable is passively controlled to release to block the high-speed test trolley. During the stopping test, the tooth-type electromagnetic clutch is powered off to disengage the drive motor reducer, and the passive release torque of the wire rope is adjusted by adjusting the power-on current of the magnetic powder brake. After the high-speed test trolley is hooked onto the arresting cable, as the moving distance of the high-speed test trolley increases, the resistance torque of the magnetic powder brake is adjusted according to the set curve to realize the gradual stopping of the high-speed test trolley with buffering. After the test, the control current of the magnetic powder brake is set to 0A, the tooth-type electromagnetic clutch is powered on to attract and connect the drive motor reducer, and the drive motor reducer rotates to realize the active retracting of the wire rope. The utility model has a simple structure and high reliability, and can be promoted and applied in high-speed test trolleys. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Attached Figure 2 This is a schematic diagram of the structure of the damping device of the utility model;

[0016] Attached Figure 3 This is a structural schematic diagram of the guide device A of the utility model. DETAILED DESCRIPTION

[0017] As attached Figure 1 , 2As shown in Figure 3, the utility model includes a barrier cable 1, a guide device and a damping device; the guide device includes a symmetrically arranged guide device A2 and a guide device B3; the damping device includes a damping device A4 corresponding to the guide device A2 and a damping device B5 corresponding to the guide device B3; the damping device A4 and the damping device B5 are symmetrically arranged; one end of the barrier cable 1 passes through the guide device A2 and is connected to the damping device A4, and the other end of the barrier cable 1 passes through the guide device B3 and is connected to the damping device B5. The barrier cable 1 of this embodiment is a galvanized steel wire rope with a diameter of 16mm and a breaking force of 140KN. The barrier cable drum A407 and the barrier cable drum B507 have the same structure and are both steel wire rope drums. Absolute encoders are installed on the barrier cable drum A407 and the barrier cable drum B507 to record the initial origin data and measure the extended length of the barrier cable 1.

[0018] The structure of the damping device A4 of the utility model is the same as that of the damping device B5; the damping device A4 comprises a base 401, a drive motor reducer A402 installed on the base 401, an electromagnetic clutch A403, a magnetic powder brake A405, a reduction box A406 and a blocking cable drum A407; the transmission shaft A of the drive motor reducer A402 is connected to one end of the electromagnetic clutch A403, the other end of the electromagnetic clutch A403 is connected to the transmission shaft B of the reduction box A406, the other end of the transmission shaft B is connected to the magnetic powder brake A405 through a coupling A404, the transmission shaft C of the reduction box A406 is connected to the shaft of the blocking cable drum A407, one end of the blocking cable 1 is wound on the blocking cable drum A407; the other end of the blocking cable 1 is wound on the blocking cable drum B507; the electromagnetic clutch A403 of this embodiment is a tooth-type electromagnetic clutch A; the magnetic powder brake A The model of 405 is: FZ200, the braking torque of magnetic powder brake A405 is 200NM, the braking torque is adjustable from 0-200NM, the speed ratio of drive motor reducer A 402 is 1:10.49, the motor power is 0.37KW, the output speed is 133rpm, the speed ratio of reducer A406 is 1:20, the output shaft speed is 6.65rpm, and the corresponding resistance torque on arresting cable drum A is 0-4000NM adjustable. The diameter of arresting cable drum A is 320mm, the rope capacity is 12 meters, the single-layer arresting cable, the speed is about 6.6m / min, and the maximum tension of the arresting cable is 4000 / 0.16=25KN.

[0019] The guide device A2 of the utility model has the same structure as the guide device B3. The guide device A2 includes a frame 201, a vertical pulley A202 and a horizontal pulley B203 installed on the frame 201. The vertical pulley A202 is arranged on one side of the horizontal pulley B203. The axes of the vertical pulley A202 and the horizontal pulley B203 are perpendicular. The pulley diameters of the vertical pulley A202 and the horizontal pulley B203 are both 300 mm, the shaft diameter is 40 mm, and each pulley has two 6308 deep groove ball bearings.

[0020] The initial state adjustment of the utility model requires manual participation to adjust the height and tension of the arresting cable. After the adjustment, the system records the absolute encoder data of the damping device as the origin of the initial state. During the process of restoring the initial state, manual attention is required to the condition of the arresting cable; the effective retraction and extension stroke of the arresting cable 1 is 3-10m.

[0021] During normal operation, when the high-speed test trolley approaches the test section to the deceleration and braking section, it slows down by its own brakes and brakes at the predetermined position; when the brakes of the high-speed test trolley fail, as a safety line to prevent the high-speed test trolley and its object from colliding and being damaged, the top groove wheel hanging rope of the high-speed test trolley is hung on the arresting rope 1; the two tooth-type electromagnetic clutches are synchronously powered off and disengaged, and the wire rope, i.e. the arresting rope 1, is passively output under the action of the passive force, and the two synchronous magnetic powder brakes are energized. By adjusting the energized current, the two magnetic powder brakes gradually increase the resistance torque of the magnetic powder brakes according to the set braking torque curve, so that the high-speed test trolley is gradually stopped with buffering. After the high-speed test trolley is stopped, the braking torque of the magnetic powder brake is set to 0A, and the two tooth-type electromagnetic clutches are synchronously powered on and attracted, and the two drive motors respectively drive the corresponding arresting rope drums to rotate through the corresponding reduction gearboxes, so that the wire rope, i.e. the arresting rope, returns to the normal state and stops.

[0022] The damping device A4 and the damping device B5 of the utility model work synchronously, and the blocking cable drum A407 and the blocking cable drum B507 rotate synchronously to realize the retraction and release of the wire rope; the wire rope is passively controlled to release to block the high-speed test trolley.

[0023] By adjusting the power-on and power-off of the tooth-type electromagnetic clutch, the driving motor can actively retract the arresting cable 1; by adjusting the power-on current of the magnetic powder brake, the resistance torque of the passive release of the arresting cable 1 can be adjusted. After the high-speed test trolley hooks the arresting cable 1, as the movement displacement of the high-speed test trolley increases, the resistance torque of the magnetic powder brake is adjusted according to the set curve to gradually stop the high-speed test trolley. The utility model has a simple structure and high reliability and can be promoted and applied in high-speed test trolleys.

[0024] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-speed test vehicle safety blocking device, characterized in that: It comprises an arresting cable (1), a guide device and a damping device; The guide device comprises a guide device A (2) and a guide device B (3) which are symmetrically arranged; the damping device comprises a damping device A (4) corresponding to the guide device A (2) and a damping device B (5) corresponding to the guide device B (3); the damping device A (4) and the damping device B (5) are symmetrically arranged; One end of the arresting cable (1) passes through the guide device A (2) and is connected to the damping device A (4). The other end of the arresting cable (1) passes through the guide device B (3) and is connected to the damping device B (5); The guide device A (2) comprises a frame (201), a vertical pulley A (202) and a transverse pulley B (203) mounted on the frame (201), wherein the vertical pulley A (202) is arranged on one side of the transverse pulley B (203); The axes of the vertical pulley A (202) and the horizontal pulley B (203) are perpendicular.

2. A high-speed test vehicle safety blocking device according to claim 1, characterized in that: The damping device A (4) comprises a base (401), a drive motor reducer A (402) mounted on the base (401), an electromagnetic clutch A (403), a magnetic powder brake A (405), a reduction box A (406) and a blocking cable drum A (407); The transmission shaft A of the drive motor reducer A (402) is connected to one end of the electromagnetic clutch A (403), the other end of the electromagnetic clutch A (403) is connected to the transmission shaft B of the reduction box A (406), the other end of the transmission shaft B is connected to the magnetic powder brake A (405) through the coupling A (404), the transmission shaft C of the reduction box A (406) is connected to the shaft of the blocking cable drum A (407), and one end of the blocking cable (1) is wound on the blocking cable drum A (407); The structure of the damping device A (4) is the same as that of the damping device B (5); the other end of the arresting cable (1) is wound around an arresting cable drum B (507).

3. A high-speed test vehicle safety blocking device according to claim 2, characterized in that: The electromagnetic clutch A (403) is a tooth-type electromagnetic clutch A.

4. A high-speed test vehicle safety blocking device according to claim 2, characterized in that: The model of the magnetic powder brake A (405) is: FZ200.

5. A high-speed test vehicle safety blocking device according to claim 2, characterized in that: The model of the reduction box A (406) is: ZLY224-20-VIII.

6. A high-speed test vehicle safety blocking device according to claim 2, characterized in that: The arresting cable (1) is a galvanized steel wire rope with a diameter of 16 mm and a breaking force of 140 KN. The arresting cable drum A (407) and the arresting cable drum B (507) are both wire rope drums.

7. A high-speed test vehicle safety blocking device according to claim 2, characterized in that: The model of the drive motor reducer A (402) is: K38-V0.37-4P-10.49-M1.

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