Locator damping device

Abstract

The utility model belongs to the technical field of contact networks, and particularly relates to a positioner damping device which comprises a positioning pipe and a positioner, one end of the positioner is connected with the positioning pipe through a support, the other end of the positioner is connected with a positioning pin sleeve, and a damper is connected between the positioning pin sleeve and the positioning pipe. The damper comprises a shell and a piston rod installed in the shell in a sliding mode, the lower end of the piston rod is connected with the positioning pin sleeve through a double-lug connector, a protrusion is arranged on the double-lug connector, a step face is formed at the connecting position of the positioner and the positioning pin sleeve, and when the positioner is lifted, the protrusion abuts against the step face. According to the utility model, the damper is arranged between the positioning pipe and the positioner, so that the vibration amplitude and frequency of the overhead line system are reduced by effectively utilizing the damping effect, the vibration time can be effectively shortened, the pantograph-catenary structure is quick and stable, the damage of high-frequency vibration to the positioning wire clamp is reduced, and the service life of the positioning wire clamp is prolonged; the protrusion abuts against the positioner so that the acting force can be transmitted to the piston rod.

Description

Technical Field

[0001] This utility model belongs to the field of overhead contact line technology, specifically relating to a positioner damping device. Background Technology

[0002] In order to ensure good contact between the pantograph sliding plate and the contact wire for current collection during operation of the electric locomotive, the contact wire needs to be positioned according to the operating requirements of the pantograph. This device is called a positioning device.

[0003] Positioning devices generally include positioning tubes, positioning tube supports, positioners, and positioning clamps. When trains are running at high speeds or passing through curved sections, the contact wire will fluctuate significantly due to aerodynamic forces and the inertia of the pantograph. This causes the positioner and positioning clamps to vibrate at high frequencies, resulting in damage and easily leading to pantograph-catenary faults. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to solve the problem that existing positioning devices are prone to damage and pantograph failure when the contact line fluctuates greatly, a positioning device damping device is provided.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a positioner damping device, including a positioning tube and a positioner, wherein the positioning tube is made of 6082 aluminum alloy tubing, one end of the positioner is connected to the positioning tube through a bracket, and the other end is connected to a positioning pin sleeve, wherein a damper is connected between the upper end of the positioning pin sleeve and the positioning tube, and the damping suppression effect can reduce the positioner's head-up amplitude and frequency, thereby improving the stability of the pantograph-catenary system;

[0006] The damper includes a housing and a piston rod slidably installed inside the housing. The lower end of the piston rod is connected to the positioning pin sleeve through a double-ear connector. The middle part of the double-ear connector is provided with a protrusion. The connection part between the positioner and the positioning pin sleeve forms a stepped surface. When the positioner is raised, α gradually decreases, and the protrusion and the stepped surface abut against each other to transmit the force to the piston rod.

[0007] The above technical solution effectively reduces the vibration amplitude and frequency of the contact wire by installing a damper between the positioning tube and the positioner, thereby shortening the vibration time, stabilizing the pantograph-catenary structure quickly, reducing the damage to the positioning clamp caused by high-frequency vibration, and improving its service life. When the positioner is raised, the protrusion abuts against the positioner, thereby transmitting the force to the piston rod.

[0008] Furthermore, the housing and the positioning tube are connected by a double-ear clamp connector. The double-ear clamp connector is precision forged from 6082 aluminum alloy and includes an upper clamp and a lower clamp. One end of the upper clamp and the lower clamp are hinged, and the other end is fixed by a fastening bolt. The lower end of the lower clamp is provided with two lower connecting ears. The housing is rotatably connected between the two lower connecting ears by a pin.

[0009] Furthermore, the upper end of the housing is provided with an upper connecting lug, and the upper connecting lug is provided with an oblong hole. The upper connecting lug is located between two lower connecting lugs. The pin passes through the oblong hole and the pin hole on the two lower connecting lugs, and the pin is slidably connected in the oblong hole. Within a certain stroke, the pin can rise freely in the oblong hole, which can avoid the hard point of the damper.

[0010] Furthermore, the lower end of the piston rod is provided with a spherical bearing, which allows it to rotate freely.

[0011] Furthermore, the dual-ear connector includes an upper connecting part and a lower connecting part. The upper connecting part is provided with two upper supporting ears, and the lower connecting part is provided with two lower supporting ears. The joint bearing is located between the two upper supporting ears and is connected by a first bolt. The upper end of the positioning pin sleeve is located between the two lower supporting ears and is connected by a second bolt.

[0012] Furthermore, the dual-ear connector, the first bolt, and the second bolt are all made of stainless steel.

[0013] The beneficial effects of this utility model are as follows: By installing a damper between the positioning tube and the positioner, this utility model effectively utilizes the damping effect to reduce the vibration amplitude and frequency of the contact wire, which can effectively shorten the vibration time, make the pantograph-catenary structure quickly stabilize, reduce the damage to the positioning clamp caused by high-frequency vibration, and improve its service life. When the positioner is raised, the protrusion abuts against the positioner, thereby transmitting the force to the piston rod. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a flowchart illustrating the present invention.

[0016] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0017] Figure 3 This is a schematic diagram of the damper's structure;

[0018] Figure 4 This is a structural schematic diagram of a double-ear clamp connector;

[0019] Figure 5 This is a connection diagram of the double-ear connector, damper, and locating pin sleeve.

[0020] In the picture:

[0021] 1. Positioning tube; 2. Double-ear clamp connector; 201. Upper clamp; 202. Lower clamp; 203. Fastening bolt; 204. Lower connecting ear; 205. Pin; 3. Damper; 301. Housing; 3011. Upper connecting ear; 3012. Waist-shaped hole; 302. Piston rod; 303. Spherical bearing; 4. Double-ear connector; 401. Protrusion; 402. Upper support ear; 403. First bolt; 404. Lower support ear; 405. Second bolt; 5. Positioner; 6. Positioning pin sleeve; α: Angle between the positioner and the damper. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Example 1:

[0024] like Figures 1-5 As shown, this utility model is a positioner damping device, including a positioning tube 1 and a positioner 5. The positioning tube 1 is made of 6082 aluminum alloy tubing. One end of the positioner 5 is connected to the positioning tube 1 through a bracket, and the other end is connected to a positioning pin sleeve 6. A damper 3 is connected between the upper end of the positioning pin sleeve 6 and the positioning tube 1. By utilizing the damping suppression effect, the head-up amplitude and frequency of the positioner 5 can be reduced, thereby improving the stability of the pantograph-catenary system. When the contact wire is suddenly impacted and fluctuates, the vibration time can be effectively shortened, allowing the pantograph-catenary structure to stabilize quickly, reducing the damage to the positioning clamp caused by high-frequency vibration, and improving its service life.

[0025] The damper 3 includes a housing 301 and a piston rod 302 slidably installed inside the housing 301. A spherical bearing 303 is provided at the lower end of the piston rod 302. The spherical bearing 303 is connected to the positioning pin sleeve 6 via a double-ear connector 4. The double-ear connector 4 includes an upper connecting part and a lower connecting part. The upper connecting part has two upper lugs 402, and the lower connecting part has two lower lugs 404. The spherical bearing 303 is located between the two upper lugs 402 and connected by a first bolt 403. The upper end of the positioning pin sleeve 6 is located between the two lower lugs 404 and connected by a second bolt 405. The double-ear connector 4, the first bolt 403, and the second bolt 405 are all made of stainless steel. A protrusion 401 is provided in the middle of the double-ear connector 4. A stepped surface is formed at the connection between the locator 5 and the positioning pin sleeve 6. When the locator 5 is raised, α gradually decreases, and the protrusion 401 abuts against the stepped surface, transmitting the force to the piston rod 302.

[0026] The housing 301 is connected to the positioning tube 1 via a double-ear clamp connector 2. The double-ear clamp connector 2 is precision forged from 6082 aluminum alloy and includes an upper clamp 201 and a lower clamp 202. One end of the upper clamp 201 and the lower clamp 202 are hinged, and the other end is fixed by a fastening bolt 203. The lower clamp 202 has two lower connecting ears 204 at its lower end. The housing 301 has an upper connecting ear 3011 at its upper end. The upper connecting ear 3011 has an oblong hole 3012. The upper connecting ear 3011 is located between the two lower connecting ears 204. A pin 205 passes through the oblong hole 3012 and the pin holes on the two lower connecting ears 204. The pin 205 is slidably connected in the oblong hole 3012. Within a certain stroke, the pin 205 can rise freely in the oblong hole 3012, which can avoid the hard point of the damper 3.

[0027] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A positioner damping device, characterized by: The device comprises a positioning tube (1) and a positioner (5), one end of the positioner (5) is connected with the positioning tube (1) through a support, and the other end is connected with a positioning pin sleeve (6), a damper (3) is connected between the upper end of the positioning pin sleeve (6) and the positioning tube (1); The damper (3) comprises a shell (301) and a piston rod (302) slidingly installed in the shell (301), the lower end of the piston rod (302) is connected with the positioning pin sleeve (6) through a double-ear connector (4), the double-ear connector (4) is provided with a protrusion (401), and a stepped surface is formed at the connecting part of the positioner (5) and the positioning pin sleeve (6), so that the protrusion (401) abuts against the stepped surface when the positioner (5) is lifted.

2. The positioner damping device of claim 1, wherein: The shell (301) and the positioning tube (1) are connected through a double-ear clamp connector (2), the double-ear clamp connector (2) comprises an upper clamp (201) and a lower clamp (202), one end of the upper clamp (201) and the lower clamp (202) is hinged, and the other end is fixed through a fastening bolt (203), the lower end of the lower clamp (202) is provided with two lower connecting ears (204), and the shell (301) is rotationally connected between the two lower connecting ears (204) through a pin (205).

3. The positioner damping device of claim 2, wherein: The upper end of the shell (301) is provided with an upper connecting ear (3011), the upper connecting ear (3011) is provided with a waist-shaped hole (3012), the upper connecting ear (3011) is located between the two lower connecting ears (204), the pin (205) passes through the waist-shaped hole (3012) and pin holes in the two lower connecting ears (204), and the pin (205) is slidingly connected in the waist-shaped hole (3012).

4. The positioner damping device of claim 1, wherein: The lower end of the piston rod (302) is provided with a joint bearing (303).

5. The positioner damping device of claim 4, wherein: The double-ear connector (4) comprises an upper connecting part and a lower connecting part, the upper connecting part is provided with two upper supporting ears (402), the lower connecting part is provided with two lower supporting ears (404), the joint bearing (303) is located between the two upper supporting ears (402) and is connected through a first bolt (403), and the upper end of the positioning pin sleeve (6) is located between the two lower supporting ears (404) and is connected through a second bolt (405).

6. The positioner damping device of claim 5, wherein: The double-ear connector (4), the first bolt (403) and the second bolt (405) are all made of stainless steel.

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