CN114310593A - Contact wire polisher of rigid contact net - Google Patents

Abstract

The invention discloses a contact wire grinding machine for a rigid contact net. The grinding machine comprises a traveling trolley mechanism, a grinding mechanism, an angle adjustment mechanism, a control mechanism, a pressure supply station and a power supply; the pressure supply station adjusts the grinding mechanism under the action of the control mechanism The pressing force on the contact line; the angle adjustment mechanism adjusts the grinding angle of the grinding mechanism according to the wear degree of the contact line; the angle adjustment mechanism includes at least one angle adjustment unit, and the angle adjustment unit includes a grinding unit fixing frame, an angle adjustment support, a guide rail Components and pressure cylinders; the angle adjustment support is provided with a fixed point, the lower end of the angle adjustment support is provided with an arc-shaped chute, the grinding unit fixing frame takes the fixed point as the center of the arc and slides to the set angle in the arc-shaped chute to grind The unit fixing frame and the angle adjustment support are locked; the grinding blade of the grinding mechanism grinds the sharp angle formed by the end face of the contact line and the outer circular arc surface, as well as the wear plane of the contact line. The invention has high automation degree, high grinding efficiency and good grinding effect.

Description

Contact wire grinder for rigid catenary

technical field

The invention relates to a contact wire grinder in the technical field of urban rail power supply, in particular to a contact wire grinder of a rigid catenary.

Background technique

In the rail transit power supply system, rigid catenary is one of the main traction power supply methods. Rigid catenary is an overhead rigid suspension busbar system. The contact wire is clamped in the busbar, and the locomotive is in direct contact with the contact wire through the pantograph. A method of power supply for urban rail transit. The system is mainly used for the power supply of tunnels, stations, and passages under bridges. Compared with traditional overhead flexible catenary, it has stronger current-carrying capacity, no danger of disconnection, high safety and reliability, few parts, convenient installation, simple maintenance, It has a series of advantages such as low maintenance cost, reduced tunnel clearance, and saving civil construction investment.

Since the rigid catenary locomotive draws current through friction between the pantograph and the contact line, the uneven loss of the contact line of the rigid catenary is a problem of concentrated reaction during the operation and maintenance process. During the operation of the train, due to the vibration of the vehicle and the pantograph Influenced by other factors, the contact line and pantograph will be unevenly worn, making the surface uneven and uneven. If the contact wire is not replaced or polished in time, it will aggravate the wear of the contact wire and the pantograph, resulting in an increase in operation and maintenance costs, and in severe cases, it will affect the operation of the train and thus the operation of the entire line.

In view of the abnormal wear of the contact wire, direct replacement of the contact wire will not only affect the operation cycle, but also cost a lot. In order to avoid a negative impact on the operation of electric passenger cars, grinding the contact line has become the main maintenance method, and the surface is smooth and abnormal wear is alleviated by grinding. However, there is currently no professional grinding equipment on the market. The way of grinding the contact line of each operating company is mainly manual grinding, which requires a lot of manpower and the work intensity is very high, the grinding efficiency is low, and there are some safety hazards in the high-altitude operation of people. At the same time grinding The large amount of metal particles and dust generated in the process can seriously affect the health of the body.

In order to solve the above problems, it is necessary to seek an efficient, convenient and safe contact wire grinding machine.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of the present invention is to provide a contact wire grinding machine for rigid contact nets with novel design, high degree of automation, simple operation, high grinding efficiency, good grinding effect, safety and environmental protection, aiming at the deficiencies of the prior art.

Technical scheme: the contact wire grinding machine of the rigid contact net of the present invention includes a traveling trolley mechanism, a grinding mechanism, an angle adjustment mechanism, a control mechanism, a pressure supply station and a power supply;

The pressure supply station adjusts the pressing force of the grinding mechanism on the contact line under the action of the control mechanism; the angle adjustment mechanism adjusts the grinding angle of the grinding mechanism according to the wear degree of the contact line;

The angle adjustment mechanism includes at least one angle adjustment unit, and the angle adjustment unit includes a grinding unit fixing frame, an angle adjustment support, a guide rail assembly and a pressure cylinder; the angle adjustment support is provided with a fixed point, and the lower end of the angle adjustment support is provided with an arc shape The chute, the grinding unit fixing frame slides to the set angle in the arc-shaped chute with the fixed point as the center, and locks the grinding unit fixing frame and the angle adjusting support;

The grinding blade of the grinding mechanism grinds the sharp angle formed by the end face of the contact line and the outer arc surface, as well as the wear plane of the contact line.

The pressure cylinder pushes the guide rail assembly to move through the angle adjustment support.

The traveling trolley mechanism includes a side plate assembly, a supporting beam, a suspension traveling assembly and a V-groove traveling assembly; the suspension traveling assembly rolls on the upper end face of the busbar, and the V-groove traveling assembly is attached to the lower end face of the busbar. The side plate assembly includes a left side plate of the frame and a right side plate of the frame, and the left side plate of the frame and the right side plate of the frame are supported and connected by a supporting beam.

The suspending traveling assembly includes a suspending traveling wheel and a suspending traveling wheel adjusting device, and the suspending traveling wheel adjusting device is connected with the suspending traveling wheel through a side plate assembly. Two pairs of suspended running wheels roll on the upper end face of the edge of the busbar, and play a suspending and supporting role for the running trolley.

The foundation of the suspension traveling wheel adjusting device is fixed on the two side plates by bolts, and the connecting screw rod is connected with the suspension traveling wheel through the holes on the two side plates. When loading and unloading the trolley, use the tool to rotate the connecting screw in different directions on both sides to adjust the position of the suspension running wheel and the inner side of the side plate.

The V-groove running assembly includes a V-groove running wheel and a V-groove running wheel adjusting device, and the V-groove running wheel adjusting device is connected to the V-groove running wheel through a side plate assembly. The two pairs of V-groove running wheels fit in the shape of the V-groove on the lower end face of the edge of the busbar, and play a limiting and guiding role for the running trolley.

The foundation of the V-groove running wheel adjusting device is also fixed on the side plate by bolts, and the adjusting screw is connected to the V-groove running wheel through the holes on the two side plates. When installing the trolley, use the tool to rotate the adjustment screw in different directions on both sides to fine-tune the position of the V-groove running wheel and the inner side of the side plate, so as to ensure that the V-groove running wheel and the busbar fit together, and at the same time, the rolling process is flexible and not stuck.

The grinding mechanism includes a plurality of grinding units, and the grinding unit includes a motor, a grinding sheet, a grinding sheet fixing and a transmission device and a dust baffle; the grinding sheet is used for the sharp angle between the lower end surface of the contact line and the outer arc surface, or the wear of the contact line. Flat surface for grinding.

One end of the dust baffle is fixed on the angle adjustment support, and the other end extends to the outside of the sanding sheet.

There is an angle scale line on the grinding unit fixing frame.

The control mechanism includes the action button of the unit pressure cylinder, the grinding disc speed adjustment valve, the total digital pressure regulating valve, the unit digital pressure regulating valve, the control cable and the pressure delivery pipe; the unit digital pressure regulating valve transmits the pressure to the pressure cylinder through the pressure delivery pipe, The grinding disc speed adjustment valve controls the grinding disc speed through the control cable.

The total digital pressure regulating valve controls the overall pressure, and the unit digital pressure regulating valve controls the pressure of each unit pressure cylinder respectively. Separately delivered to the pressure cylinders of each unit.

The present invention also includes a pulling apparatus for performing a pulling sanding operation to perform a pulling sanding operation.

Beneficial effect: Compared with the prior art, the present invention has the following advantages:

(1) The traveling trolley mechanism of the present invention is provided with two pairs of suspension traveling wheels and two pairs of V-groove traveling wheels, and the suspension traveling wheels and the V-groove traveling wheels are respectively provided with adjustment devices, which ensures the convenience of installation and adjustment, After the adjustment is completed, the V-groove running wheel fits the V-groove shape of the lower end face of the edge of the busbar to prevent the up and down and left and right directions during the grinding process and ensure the grinding quality.

(2) The grinding unit includes electric control and pneumatic control mechanism, which realizes semi-automatic control of traction and grinding process, reduces manual operation, liberates productivity, reduces labor intensity, and has good safety.

(3) The three independent pressure cylinders in the angle adjustment mechanism provide continuous pressure to compress the grinding disc to the contact line, and at the same time compensate for the wear of the grinding disc; at the same time, the three independent pressure cylinders are adjusted by the digital pressure of the three corresponding units Valve control, and then precisely adjust the grinding disc pressing force, improve grinding accuracy and efficiency. The grinding disc speed adjustment valve controls the speed of the grinding disc, so that the grinding quality can be controlled and adjusted.

(4) The grinding mechanism includes three independent angle adjustment mechanisms, which match the grinding angle according to the type of contact line and the degree of wear, so as to ensure the grinding quality at the sharp corners of the edge, and the matching adaptability is strong.

(5) The electric control and pneumatic control components are integrated in a control box, and the control unit and the execution unit are separated, which is convenient for operation and maintenance.

(6) The invention has the advantages of simple operation, low labor intensity, good safety, good grinding effect and high grinding efficiency.

Description of drawings

Fig. 1 is the left side view of the present invention;

Fig. 2 is the front view of the present invention;

Fig. 3 is the top view of the present invention;

Figure 4 is an isometric view of the present invention;

Fig. 5 is the layout diagram of the internal components of the control box of the present invention;

FIG. 6 is a cross-sectional view of the contact line to be polished according to the present invention.

Detailed ways

The contact wire grinding machine of the rigid contact wire of the present invention includes a traveling trolley mechanism 10 , a grinding mechanism 20 , an angle adjustment mechanism 30 , a control mechanism 40 , a pressure supply station 50 and a power source 60 . The pressure supply station adjusts the pressing force of the grinding mechanism on the contact line 702 under the action of the control mechanism;

The traveling trolley mechanism 10 includes a side plate assembly, a supporting beam 105, a suspended traveling assembly and a V-groove traveling assembly. The suspended traveling assembly rolls on the upper end surface of the busbar 701, and the V-groove traveling assembly is attached to the lower end surface of the busbar.

The suspended running assembly includes a suspended running wheel 103 and a suspended running wheel adjusting device 106. The suspended running wheel adjusting device is connected to the suspended running wheel through a side plate assembly.

The V-groove running assembly includes a V-groove running wheel 104 and a V-groove running wheel adjusting device 107. The V-groove running wheel adjusting device is connected to the V-groove running wheel through the side plate assembly.

The side panel assembly includes a left side panel 102 of the base frame and a right side panel 101 of the base frame, and the left side panel 102 of the frame and the right side panel 101 of the frame are supported and connected by a plurality of supporting beams 105 . Mounting handles 108 are respectively provided on the left side panel and the right side panel.

The traveling trolley mechanism is provided with two pairs of suspended traveling wheels 103 and two pairs of V-groove traveling wheels 104 . Two pairs of suspension running wheels 103 and two pairs of V-groove running wheels 104 are arranged symmetrically, and one pair is provided at the front and rear ends of the trolley. Hanging support. The two pairs of V-groove running wheels 104 fit in the shape of the V-groove on the lower end face of the edge of the busbar, and play a limiting and guiding role for the running trolley.

The foundation of the suspension running wheel adjusting device is fixed on the side plate assembly, and the connecting screw rod is connected to the suspension running wheel 103 through the holes on the two side plates. When loading and unloading the trolley, the connecting screw is rotated in different directions to the left and right sides by the tool to adjust the position of the suspension running wheel 103 and the inner side of the two side plates.

The foundation of the V-groove running wheel adjusting device 107 is also fixed on the side plate assembly, and the adjusting screw is connected to the V-groove running wheel 104 through the holes on the side plate assembly. When installing the trolley, use the tool to rotate the adjusting screw in different directions on the left and right sides to fine-tune the position of the V-groove running wheel 104 and the inner side of the side plate, so as to ensure that the V-groove running wheel 104 is in contact with the busbar, and at the same time, it is flexible and not stuck during the rolling process.

The left side plate 102 of the frame and the right side plate 101 of the frame are provided with fixing holes for traction rings. By setting the traction rings, the moving operation can be pulled by external force.

The grinding mechanism includes three grinding units, and each grinding unit includes a motor and a protective cover 201 , a grinding sheet 202 , a grinding sheet fixing and transmission device 203 , and a dust baffle 204 . The motor and the protective cover 201 are connected with the polishing plate fixing and transmission device 203 as a whole, and the power of the motor is directly transmitted to the polishing plate, which together with the polishing plate 202 constitute a polishing unit.

The three grinding units grind the contact line from different angles. The No. 1 grinding unit 21 is located at the rear end of the right side plate of the traveling trolley, and its grinding piece is in close contact with the sharp corner c formed by the lower end surface of the contact line and the outer arc surface for grinding; The No. 2 grinding unit 22 is located at the rear end of the left side plate of the traveling trolley, and its grinding piece is in close contact with the sharp corner a formed by the lower end surface of the contact line and the outer arc surface for grinding; the No. 3 grinding unit 23 is located at the front end of the left side panel of the traveling trolley, The grinding disc is in close contact with the wear plane b at the lower end of the contact line for grinding.

The three grinding units are all provided with dust baffles 204. One end of the dust baffle is fixed on the angle adjustment support by bolts, and the other end extends to the outside of the edge of the grinding disc to prevent the grinding disc from throwing out the grinding dust and flying to the left and right sides of the traveling trolley. side. The three grinding units are equipped with dust baffles, which are respectively fixed on the side panels of the trolley.

The angle adjustment mechanism 30 is matched with the grinding mechanism 20. The angle adjustment mechanism includes three angle adjustment units, and each angle adjustment mechanism includes a grinding unit fixing frame 301, an angle adjustment support 302, a guide rail assembly, a pressure cylinder 303, and a pressure cylinder fixing frame. board 306 . The guide rail assembly includes guide rails 304 and guide rail sliders 305 .

The grinding unit fixing frame is fixed on the angle adjustment support 302, the upper end of the angle adjustment support 302 is provided with a fixed point, and the lower end is provided with an arc chute, the upper fixed point of the grinding unit fixing frame is the center of the circle, and slides in the arc chute , slide to a corresponding angle, and then lock the grinding unit fixing frame and the angle adjusting support 302 . The grinding unit fixing frame is provided with an angle scale line, and the angle adjustment support 302 is provided with a scale line observation window.

The guide rail 304 is fixed on the side panel assembly in the vertical direction. The guide rail slider 305 is slidably connected with the guide rail 304 and can slide in the vertical direction. The angle adjustment support 302 is fixed on the guide rail slider 305 .

The pressure cylinder fixing plate 306 is fixed to the side plate perpendicular to the side plate surface. The pressure cylinder is fixed on the pressure cylinder fixing plate 306 , and the top end of the action rod of the pressure cylinder is connected with the angle adjustment support 302 , thereby pushing the guide rail slider 305 to move in the vertical direction.

The control mechanism 40 includes a control box 406, a one-to-one unit pressure cylinder action button 401, a polishing sheet rotational speed adjustment valve 402, a main power switch 403, a total digital pressure regulating valve 404, a unit digital pressure regulating valve 405, a control cable 407 and Pressure delivery tube 408. Among them, the unit pressure cylinder action button 401 is used to control the up and down movement of the pressure cylinder, and the replacement of the polishing sheet is convenient after the polishing sheet is lowered.

Each unit pressure cylinder action button 401 , polishing plate rotational speed adjusting valve 402 , main power switch 403 , total digital pressure regulating valve 404 , unit digital pressure regulating valve 405 are integrated on the control box housing. The polishing pad rotational speed adjusting valve 402 controls the rotational speed of the polishing pad through the control cable.

The total digital pressure regulating valve 405 controls the overall pressure, and the unit digital pressure regulating valve controls the pressure of the three unit pressure cylinders respectively. The delivery pipes are respectively delivered to the pressure cylinders of the three units. The pressure supply station includes the supply station body and the pressure supply pipe, which provides a pressure source for the mechanism. The power source includes the power source body and the power cable, which is the power source of the mechanism.

The pressure supply station includes a supply station body 501 and a pressure supply pipe 502 to provide a pressure source for the present invention.

On the basis of this technical scheme, the scheme is improved by adding electric traction equipment and fully automatic traction grinding operation.

On the basis of this technical scheme, the scheme is improved by adding automatic dust collection equipment to automatically collect the grinding dust.

Claims (10)

1. The utility model provides a contact wire polisher of rigidity contact net which characterized in that: comprises a walking trolley mechanism, a polishing mechanism, an angle adjusting mechanism, a control mechanism and a pressure supply station;

the pressure supply station adjusts the pressing force of the grinding mechanism on the contact line under the action of the control mechanism; the angle adjusting mechanism adjusts the polishing angle of the polishing mechanism according to the abrasion degree of the contact line;

the angle adjusting mechanism comprises at least one angle adjusting unit, and the angle adjusting unit comprises a grinding unit fixing frame, an angle adjusting support piece (302), a guide rail assembly and a pressure cylinder (303); a fixed point is arranged on the angle adjusting support piece (302), an arc-shaped sliding groove is arranged at the lower end of the angle adjusting support piece, and the polishing unit fixing frame slides in the arc-shaped sliding groove to a set angle by taking the fixed point as a circle center and then locks the polishing unit fixing frame and the angle adjusting support piece;

and the polishing sheet of the polishing mechanism polishes a sharp angle formed by the end surface of the contact line and the outer arc surface and a wearing plane of the contact line.

2. The contact line polisher for the rigid catenary of claim 1, wherein: the pressure cylinder (303) pushes the guide rail assembly to move through the angle adjusting support (302).

3. The contact line polisher for the rigid catenary of claim 1, wherein: the walking trolley mechanism comprises a side plate assembly, a supporting beam, a suspension walking assembly and a V-groove walking assembly; the suspension walking component rolls on the upper end face of the bus bar, and the V-groove walking component is attached to the lower end face of the bus bar.

4. The contact line polisher for a rigid catenary of claim 3, further comprising: the suspension travelling assembly comprises suspension travelling wheels (103) and a suspension travelling wheel adjusting device (106), and the suspension travelling wheel adjusting device is connected with the suspension travelling wheels through a side plate assembly.

5. The contact line polisher for a rigid catenary of claim 3, further comprising: the V-groove walking assembly comprises V-groove walking wheels (104) and a V-groove walking wheel adjusting device (107), and the V-groove walking wheel adjusting device is connected with the V-groove walking wheels through a side plate assembly.

6. The contact line polisher for the rigid catenary of claim 1, wherein: the grinding mechanism comprises a plurality of grinding units, and each grinding unit comprises a motor, a grinding sheet (202), a grinding sheet fixing and transmission device (203) and a dust baffle (204); and the polishing sheet polishes a sharp corner between the lower end surface of the contact line and the outer arc surface or a wear plane of the contact line.

7. The contact line polisher for the rigid catenary of claim 6, further comprising: one end of the dust baffle (204) is fixed on the angle adjusting support (302), and the other end extends to the outer side of the polishing plate (202).

8. The contact line polisher for the rigid catenary of claim 1, wherein: and angle scale marks are arranged on the polishing unit fixing frame.

9. The contact line polisher for the rigid catenary of claim 1, wherein: the control mechanism (40) comprises a unit pressure cylinder action button (401), a grinding piece rotating speed adjusting valve (402), a total digital pressure adjusting valve (404), a unit digital pressure adjusting valve (405), a control cable (407) and a pressure conveying pipe (408); the unit digital pressure regulating valve (405) transmits pressure to the pressure cylinder (303) through a pressure transmission pipe; the unit cylinder action button (401) controls the lifting of the polishing plate by controlling the pressure cylinder.

10. The contact line polisher for the rigid catenary of claim 1, wherein: also included is a pulling apparatus for performing the pulling sanding operation.

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