A static characteristic detection device for a locomotive pantograph

Abstract

The utility model relates to a locomotive pantograph static characteristic detection device belongs to pantograph detection technical field, including the casing, the motor seat is arranged in the casing inside slidingly, is fixedly arranged with servo motor on the motor seat, is fixedly arranged with the steel wire rope winding drum on the output shaft of servo motor, is wound with the steel wire rope outside the steel wire rope winding drum, the one end of steel wire rope is away from the steel wire rope winding drum and is fixedly arranged with the pantograph hook after winding over the steel wire rope guide pulley and the force measuring pulley in proper order, and the pantograph hook is located the casing outside, is provided with the tension and pressure sensor under the force measuring pulley, is provided with the laser displacement sensor on the casing upper end one side, solved the problem of the current locomotive pantograph static characteristic and carries out the detection when flow complex, the problem of lower measurement accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of pantograph testing technology, specifically relating to a device for testing the static characteristics of a locomotive pantograph. Background Technology

[0002] When railway electric locomotives return to the depot for maintenance, it is necessary to test the pantograph raising / lowering time, maximum pantograph raising height, and static contact pressure. Currently, these tests are conducted using measuring instruments. Height is measured using a graduated rod, and static contact pressure is measured using a weight or spring scale. The raising / lowering time is currently only measured manually using a stopwatch. The testing process is complex, the measurement accuracy is low, and there is no complete data record after the maintenance work is completed, which causes great inconvenience to the work of on-site maintenance personnel. Utility Model Content

[0003] This invention overcomes the shortcomings of the prior art and proposes a device for detecting the static characteristics of a locomotive pantograph; it solves the problems of complex procedures and low measurement accuracy in the current detection of the static characteristics of locomotive pantographs.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0005] A static characteristic detection device for a locomotive pantograph includes a housing, a motor base slidably disposed inside the housing, a servo motor fixedly disposed on the motor base, a wire rope winding drum fixedly disposed on the output shaft of the servo motor, a wire rope wound around the outside of the wire rope winding drum, and a pantograph hook fixedly disposed at the end of the wire rope away from the wire rope winding drum after passing through a wire rope guide wheel and a force measuring pulley in sequence, with the pantograph hook located on the outside of the housing; a tension / compression sensor disposed below the force measuring pulley; and a laser displacement sensor disposed on one side of the upper end of the housing.

[0006] Furthermore, the housing is a square box structure, with an inclined surface at the rear edge of the upper end face of the housing, on which a touch screen is mounted; a handle is located in the middle of the upper end face of the housing; a first mounting groove is located at the front end of the upper end face of the housing, and the laser displacement sensor is fixedly mounted inside the first mounting groove; a second mounting groove is located on the lower side of the front and rear end faces of the housing, and a magnetic base is fixedly mounted inside each second mounting groove; a third mounting groove is located in the middle of the rear end face of the housing, and a micro printer is fixedly mounted inside the third mounting groove.

[0007] Furthermore, a battery is fixedly installed on the bottom surface inside the casing.

[0008] Furthermore, a fixing plate is fixedly installed on the inner left side of the housing, and the fixing plate is located above the battery; two horizontal guide rods are fixedly installed on the rear side of the fixing plate, and the motor seat is slidably sleeved on the outside of the two guide rods; a horizontal screw rod is screwed into the fixing plate, and the rear end of the screw rod is fixedly connected to the output shaft of the servo motor.

[0009] Furthermore, grooves are provided on the outer wall of the wire rope winding drum to guide the wire rope.

[0010] Furthermore, a wire rope guide wheel is rotatably mounted on the left inner wall of the housing, and the wire rope guide wheel is located above the wire rope winding drum; a tension / compression sensor is fixedly mounted on the left inner wall of the housing, and the tension / compression sensor is located in front of the wire rope guide wheel; the detection end of the tension / compression sensor is vertically upward, and the force measuring pulley is rotatably mounted at the detection end of the tension / compression sensor.

[0011] Furthermore, a pressure transmitter is fixedly installed inside the housing, and the pressure transmitter is connected to the tension / compression sensor.

[0012] Furthermore, the end of the wire rope away from the wire rope winding drum extends upwards past the wire rope guide wheel, then forwards past the force measuring pulley, and finally extends upwards from the top plate of the casing.

[0013] Furthermore, a baffle groove is fixedly installed on the outer surface of the shell, and a detachable baffle is placed inside the baffle groove.

[0014] The beneficial effects of this utility model compared to the prior art are as follows: 1. The design of the device's casing ensures that the touchscreen is tilted at a certain angle to the user's eyes during operation, making it easier for operators to use.

[0015] 2. This device integrates a mini printer, which can directly print the inspection record after the maintenance work is completed, making it convenient for maintenance documents to be archived.

[0016] 3. This device integrates a laser displacement sensor. Compared with the traditional test scheme using a wire-type displacement sensor, it does not directly contact the pantograph during the testing of pantograph height and pantograph raising / lowering time, thus not affecting the movement of the pantograph and achieving high detection accuracy.

[0017] 4. This device uses a magnetic base to adhere to the roof of the locomotive, which is a simple and reliable fixing method. No additional tooling or fixtures are required, making it convenient for operators to use.

[0018] 5. When testing the static contact pressure of the pantograph, this device uses a servo motor to precisely control the pantograph's up-and-down movement at a uniform speed via a steel wire rope, which is more accurate than manual control.

[0019] 6. This device combines a fixed pulley with a tension / compression sensor to accurately measure the pantograph contact pressure without affecting the pantograph's movement.

[0020] 7. This device is equipped with a special anti-wire rope entanglement mechanism. When the servo motor controls the rotation of the wire rope winding drum, it always ensures that the wire rope is perpendicular and tangent to the exit position of the winding drum, so as to prevent the wire rope from becoming disordered and entangled as the extension length changes.

[0021] 8. The housing of this device is equipped with handles and baffle slots, and has a high degree of integration, making it convenient for maintenance personnel to carry as a whole. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings: Figure 1 This is a three-dimensional schematic diagram of the entire utility model. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the entire utility model. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the shell; Among them, 1 is the housing, 2 is the motor base, 3 is the servo motor, 4 is the wire rope winding drum, 5 is the wire rope, 6 is the wire rope guide wheel, 7 is the force measuring pulley, 8 is the pantograph hook, 9 is the tension and compression sensor, 10 is the laser displacement sensor, 11 is the touch screen, 12 is the handle, 13 is the magnetic base, 14 is the miniature printer, 15 is the battery, 16 is the fixing plate, 17 is the guide rod, 18 is the screw, 19 is the baffle groove, 20 is the baffle, and 21 is the pressure transmitter. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it. The technical solution of this utility model will be described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0024] like Figure 1As shown in Figure 3, this utility model provides a static characteristic detection device for a locomotive pantograph, including a housing 1, a motor base 2 slidably disposed inside the housing 1, a servo motor 3 fixedly disposed on the motor base 2, a wire rope winding drum 4 fixedly disposed on the output shaft of the servo motor 3, a wire rope 5 wound around the outside of the wire rope winding drum 4, and a pantograph hook 8 fixedly disposed at the end of the wire rope 5 away from the wire rope winding drum 4 after passing through a wire rope guide wheel 6 and a force measuring pulley 7 in sequence, with the pantograph hook 8 located on the outside of the housing 1; a tension / compression sensor 9 disposed below the force measuring pulley 7; and a laser displacement sensor 10 disposed on one side of the upper end of the housing 1.

[0025] The housing 1 is a square box structure. The rear edge of the upper end face of the housing 1 is set as an inclined surface, and a touch screen 11 is set on the inclined surface. A handle 12 is set in the middle of the upper end face of the housing 1. A first mounting groove is set at the front end of the upper end face of the housing 1, and the laser displacement sensor 10 is fixedly installed in the first mounting groove. The detection port of the laser displacement sensor 10 is set vertically upward. A second mounting groove is set on the lower side of the front and rear end faces of the housing 1, and a magnetic base 13 is fixedly installed in each second mounting groove. A third mounting groove is set in the middle of the rear end face of the housing 1, and a micro printer 14 is fixedly installed in the third mounting groove.

[0026] A battery 15 is fixedly installed on the bottom surface inside the housing 1, with its upper surface remaining horizontal. The battery 15 supplies power to the electrical components inside the housing 1. A fixing plate 16 is fixedly installed on the left inner wall of the housing 1. The fixing plate 16 is a square plate structure located in the left and right vertical planes and is positioned above the battery 15. Two horizontal guide rods 17 are fixedly installed on the rear side of the fixing plate 16, and the motor base 2 is slidably sleeved on the outside of the two guide rods 17. A horizontal screw 18 is screwed into the fixing plate 16, and the rear end of the screw 18 is fixedly connected to the output shaft of the servo motor 3.

[0027] When the servo motor 3 rotates, it drives the wire rope winding drum 4 and the screw 18 to rotate synchronously. The rotating wire rope winding drum 4 releases the wire rope 5. Since the screw 18 is screwed to the fixed plate 16 and the fixed plate 16 is fixed, the screw 18 moves in the front-back direction. The screw 18 drives the servo motor 3, the wire rope winding drum 4, and the motor base 2 to move synchronously, thereby ensuring that the exit angle of the wire rope 5 and the wire rope winding drum 4 always remain perpendicular and tangent. The guide rod 17 ensures that the motor base 2 remains stable when moving back and forth.

[0028] A groove is provided on the outer wall of the wire rope winding drum 4 to guide the wire rope 5.

[0029] A wire rope guide wheel 6 is rotatably mounted on the left inner wall of the housing 1, positioned above the wire rope winding drum 4. A tension / compression sensor 9 is fixedly mounted on the left inner wall of the housing 1, located in front of the wire rope guide wheel 6. The detection end of the tension / compression sensor 9 is vertically upward, and the force-measuring pulley 7 is rotatably mounted at the detection end of the tension / compression sensor 9. A pressure transmitter 21 is also fixedly mounted inside the housing 1, and is connected to the tension / compression sensor 9.

[0030] The end of the wire rope 5 away from the wire rope winding drum 4 extends upwards past the wire rope guide wheel 6, then forwards past the force measuring pulley 7, and finally extends outwards from the top plate of the housing 1.

[0031] Inside the housing 1, there is also a control module, which is electrically connected to the touch screen 11, the micro printer 14, the servo motor 3, the laser displacement sensor 10, and the pressure transmitter 21.

[0032] A baffle groove 19 is also fixedly provided on the outer side of the housing 1, and a detachable baffle 20 is placed inside the baffle groove 19.

[0033] The working principle of this utility model is as follows: When the detection device is not in operation, the baffle 20 is placed inside the baffle groove 19.

[0034] When pantograph testing is required, the testing device is moved by gripping handle 12. Once the device reaches the testing position, it is magnetically secured to the locomotive roof via two magnetic bases 13. The control module then controls the servo motor 3 to rotate forward, causing the wire rope drum 4 to rotate forward and releasing the wire rope 5 until the pantograph hook 8 at the end of the wire rope 5 engages with the pantograph. During the release of the wire rope 5, the screw 18 rotates synchronously with the wire rope drum 4. Since the screw 18 is screwed to the fixing plate 16, which remains stationary, the screw 18 moves in the front-to-back direction. This movement of the screw 18 drives the servo motor 3, the wire rope drum 4, and the motor base 2 to move synchronously, ensuring that the wire rope 5's exit angle remains perpendicular and tangent to the wire rope drum 4, preventing the wire rope 5 from becoming disordered or tangled as its extension length changes. After the pantograph hook 8 is connected to the pantograph, the wire rope 5 is kept taut.

[0035] Then, the baffle 20 is removed from the baffle groove 19 and connected to the pantograph, cooperating with the laser displacement sensor 10 to measure the pantograph's descent displacement. The control module then controls the servo motor 3 to rotate in the reverse direction, which in turn drives the wire rope winding drum 4 to rotate in the reverse direction. The wire rope 5 gradually winds onto the wire rope winding drum 4, and the pantograph hook 8 at the end of the wire rope 5 pulls the pantograph downwards, causing it to descend gradually and uniformly. The laser displacement sensor 10 detects the descent height of the pantograph and transmits this height to the control module. As the pantograph descends, the force-measuring pulley 7 experiences an upward pull from the wire rope 5. The tension sensor 9 detects this tension and transmits it to the control module via the pressure transmitter 21. The control module then displays the tension value on the touchscreen 11.

[0036] After the test is completed, the micro printer 14 is controlled to print the test result ticket.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for detecting the static characteristics of a locomotive pantograph, characterized in that: The device includes a housing (1), a motor base (2) that slides inside the housing (1), a servo motor (3) that is fixedly mounted on the motor base (2), a wire rope winding drum (4) that is fixedly mounted on the output shaft of the servo motor (3), a wire rope (5) that is wound around the outside of the wire rope winding drum (4), and a pantograph hook (8) that is fixedly mounted on the end of the wire rope (5) that is away from the wire rope winding drum (4) after passing through the wire rope guide wheel (6) and the force measuring pulley (7) in sequence. The pantograph hook (8) is located on the outside of the housing (1); a tension and pressure sensor (9) is provided on the lower side of the force measuring pulley (7); and a laser displacement sensor (10) is provided on one side of the upper end of the housing (1).

2. The locomotive pantograph static characteristic detection device according to claim 1, characterized in that: The housing (1) is a square box structure. The rear edge of the upper end face of the housing (1) is set as an inclined surface, and a touch screen (11) is set on the inclined surface. A handle (12) is set in the middle of the upper end face of the housing (1). A first mounting groove is set at the front end of the upper end face of the housing (1), and the laser displacement sensor (10) is fixedly set inside the first mounting groove. A second mounting groove is set on the lower side of the front and rear end faces of the housing (1), and a magnetic base (13) is fixedly set inside each second mounting groove. A third mounting groove is set in the middle of the rear end face of the housing (1), and a micro printer (14) is fixedly set inside the third mounting groove.

3. The locomotive pantograph static characteristic detection device according to claim 1, characterized in that: A battery (15) is fixedly installed on the bottom surface inside the casing (1).

4. The locomotive pantograph static characteristic detection device according to claim 3, characterized in that: A fixing plate (16) is fixedly installed on the inner left side of the housing (1), and the fixing plate (16) is located above the battery (15); two horizontal guide rods (17) are fixedly installed on the rear side of the fixing plate (16), and the motor seat (2) is slidably sleeved on the outside of the two guide rods (17); a horizontal screw rod (18) is screwed inside the fixing plate (16), and the rear end of the screw rod (18) is fixedly connected to the output shaft of the servo motor (3).

5. The locomotive pantograph static characteristic detection device according to claim 1, characterized in that: A groove is provided on the outer wall of the wire rope winding drum (4) to guide the wire rope (5).

6. The locomotive pantograph static characteristic detection device according to claim 1, characterized in that: The wire rope guide wheel (6) is rotatably mounted on the inner left side of the housing (1), and the wire rope guide wheel (6) is located above the wire rope winding drum (4); the tension and pressure sensor (9) is fixedly mounted on the inner left side of the housing (1), and the tension and pressure sensor (9) is located in front of the wire rope guide wheel (6); the detection end of the tension and pressure sensor (9) is vertically upward, and the force measuring pulley (7) is rotatably mounted at the detection end of the tension and pressure sensor (9).

7. The locomotive pantograph static characteristic detection device according to claim 6, characterized in that: A pressure transmitter (21) is also fixedly installed inside the housing (1), and the pressure transmitter (21) is connected to the tension and compression sensor (9).

8. The locomotive pantograph static characteristic detection device according to claim 6, characterized in that: The end of the wire rope (5) away from the wire rope winding drum (4) extends upwards past the wire rope guide wheel (6), then forwards past the force measuring pulley (7) and extends upwards, finally extending outwards from the top plate of the housing (1).

9. The locomotive pantograph static characteristic detection device according to claim 1, characterized in that: A baffle groove (19) is fixedly provided on the outer side of the shell (1), and a detachable baffle (20) is placed inside the baffle groove (19).

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