Polishing device for rigid contact net contact line

Abstract

The utility model provides a polishing device for a contact line of a rigid contact net, which relates to the field of polishing of the contact line of the rigid contact net, and adopts the technical scheme that a polishing mechanism comprises a polishing motor and a polishing wheel, the polishing motor is arranged on a support plate I, and the support plate I is of an L-shaped structure; the first supporting plate is connected with a wing plate on the outer side of the moving seat through a first guide column, the first supporting plate and the first guide column can move relatively, a first follow-up spring is vertically arranged between the first supporting plate and the moving seat and arranged on the first guide column in a sleeving mode, and the upper end of the first guide column penetrates through the first supporting plate and is provided with a first limiting nut. A first straight hole groove is vertically formed in the corresponding position of the movable base, a motor shaft of the grinding motor extends into the first straight hole groove to be connected with a grinding wheel, and the axis of the grinding wheel is perpendicular to the advancing direction of the movable base. The polishing mechanism can float along with the change of the diameter of the contact line, and deformation caused by bearing of a large load is greatly avoided.

Description

Technical Field

[0001] The utility model relates to the field of grinding of catenary contact wires, in particular to a grinding device for catenary contact wires. Background Art

[0002] During the operation of a train, especially in the acceleration section, the vehicle will swing rapidly during acceleration, the pantograph will vibrate, and the current between the pantograph and the catenary is very large, resulting in the softening of the catenary contact wire due to temperature rise. This will cause the contact wire and the pantograph to wear faster, making their surfaces uneven. In order to avoid negative impacts on the operation of the electric train, it is necessary to grind the contact wire to ensure its surface is smooth, thereby reducing the jumping connection between the train pantograph and the contact wire and ensuring the stable transmission of electricity.

[0003] In the prior art, a Chinese utility model patent with the authorization announcement number CN 208601227 U discloses a grinding machine for a catenary contact wire, which includes a frame and a traveling mechanism and a grinding mechanism respectively installed on the frame. The grinding mechanism includes a grinding motor and a grinding wheel driven by the grinding motor to rotate. The traveling mechanism includes four pairs of traveling wheels installed at the four corners of the frame. The controller controls the telescopic rod of the telescopic motor to move up and down to adjust the height of the grinding wheel and the grinding motor, so as to achieve fine adjustment of the grinding degree of the contact wire and improve the grinding accuracy and efficiency. When in use, the traveling mechanism is matched and installed on the busbar of the rigid catenary, so that the grinding machine advances on the busbar due to the rotation of the four large wheels of the traveling mechanism. This technical solution can reduce manual operation, liberate productivity, reduce labor intensity, and has good safety.

[0004] In the above technical solution, the height of the grinding wheel is adjusted by the telescopic rod of the telescopic motor. Since the length of the telescopic rod does not change during the grinding process, it causes a rigid connection between the grinding motor and the frame. However, due to the uneven surface of the contact wire and large radial dimension changes, and in addition, the grinding wheel is arranged in a suspended manner, the force exerted by the contact wire on the grinding mechanism is basically borne by the output shaft of the grinding motor and the telescopic rod. The motor shaft and the telescopic rod are extremely prone to deformation, and the grinding wheel deflects greatly during rotation, affecting the grinding accuracy and the service life of the grinding machine. Summary of the Utility Model

[0005] In order to solve the technical problem that the grinding mechanism in the above prior art is deformed due to the influence of the contact wire, affecting the grinding accuracy and service life, the utility model provides a grinding device for a catenary contact wire, which can make the grinding mechanism float with the change of the diameter of the contact wire, greatly avoiding deformation caused by bearing a large load.

[0006] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A grinding device for the contact wire of a rigid catenary includes a moving seat, and further includes a grinding mechanism. The grinding mechanism includes a grinding motor and a grinding wheel. The grinding motor is arranged on a first support plate. The first support plate has an L-shaped structure. The first support plate is connected to a wing plate on the outside of the moving seat through a first guiding column. The first support plate and the first guiding column can move relative to each other. A first follow-up spring is vertically arranged between the first support plate and the moving seat. The first follow-up spring is sleeved on the first guiding column. The upper end of the first guiding column penetrates through the first support plate and is provided with a first limiting nut. A first straight hole groove is vertically arranged at the corresponding position of the moving seat. The motor shaft of the grinding motor extends into the first straight hole groove and is connected to the grinding wheel. The axis of the grinding wheel is perpendicular to the advancing direction of the moving seat.

[0007] In the present utility model, the grinding mechanism and the moving seat are floatingly connected through the first follow-up spring, so that the grinding mechanism can lift under the action of the contact wire, avoiding the grinding wheel from bearing a large load and causing the motor shaft to deform, ensuring the grinding accuracy and the service life of the grinding device; at the same time, by floatingly connecting the grinding mechanism, it can always ensure close contact with the contact wire, without the need to rely on adjusting a large grinding amount in the prior art to achieve close contact, avoiding excessive grinding of the contact wire and extending the service life of the contact wire.

[0008] Further, it further includes a traveling mechanism. The traveling mechanism includes a traveling motor and a driving wheel. The driving wheel can move along the busbar. The traveling motor and the grinding motor are oppositely arranged on the outside of the moving seat.

[0009] In the present utility model, the traveling motor and the grinding motor are symmetrically arranged, ensuring that the grinding device is in a balanced state and not skewed after being installed on the busbar, and ensuring the grinding accuracy.

[0010] Further, the traveling mechanism further includes a second support plate. The second support plate has an L-shaped structure. The second support plate is connected to a wing plate on the outside of the corresponding side of the moving seat through a second guiding column. The second support plate and the second guiding column can move relative to each other. The upper end of the second guiding column penetrates through the second support plate and is provided with a second limiting nut. A second follow-up spring is sleeved outside the second guiding column. The two ends of the second follow-up spring are respectively abutted against the second support plate and the corresponding wing plate. A second straight hole groove is arranged at the corresponding position of the moving seat. The motor shaft of the traveling motor extends into the second straight hole groove and is connected to the driving wheel.

[0011] In the present utility model, the traveling mechanism and the moving seat are floatingly connected through the second follow-up spring, which can adapt to the curvature change of the busbar, ensure that the driving wheel is always in a pressed state with the busbar, ensure that the driving wheel does not slip, and make the grinding device move forward stably.

[0012] Further, the traveling mechanism further includes a positioning component, the positioning component includes a set of hanging wheels arranged oppositely, the set of hanging wheels includes two hanging wheels arranged oppositely left and right, the hanging wheels are arranged inside the moving seat, the hanging wheels are rotatably connected to the moving seat through telescopic shafts, and the hanging wheels can move along the upper surface of the lower edge of the busbar.

[0013] By providing the hanging wheels, the present utility model can install the grinding device on the busbar and ensure that the grinding device moves along the busbar.

[0014] Further, the traveling mechanism further includes a set of positioning wheels, the set of positioning wheels includes two positioning wheels arranged oppositely left and right, the positioning wheels are rotatably arranged inside the moving seat, and a protruding portion is arranged on the outer circumference of the positioning wheels, and the protruding portion can be in shape fit with the groove on the lower edge of the busbar.

[0015] By providing the positioning wheels with the protruding portions, the present utility model can ensure that the relative position of the grinding device and the busbar in the left and right directions does not change and ensure that the device does not derail.

[0016] Further, the two positioning wheels are arranged on the same rotating shaft, and the rotating shaft is rotatably arranged through the inside of the moving seat.

[0017] Further, two sets of the set of hanging wheels and two sets of the set of positioning wheels are provided.

[0018] Further, a protruding portion is arranged on the outer circumference of the driving wheel, and the protruding portion can be in shape fit with the groove on the lower edge of the busbar.

[0019] From the above technical solutions, it can be seen that the present utility model has the following advantages:

[0020] The utility model provides a grinding device for a contact wire of a rigid catenary. By floatingly connecting the grinding mechanism and the moving seat through a first follower spring, the grinding mechanism can lift under the action of the contact wire, avoiding large loads on the grinding wheel and deformation of the motor shaft, ensuring the grinding accuracy and the service life of the grinding device. At the same time, floatingly connecting the grinding mechanism can always ensure close contact with the contact wire, without relying on adjusting a large grinding amount in the prior art to achieve close contact, avoiding excessive grinding of the contact wire and extending the service life of the contact wire. Symmetrically arranging the traveling motor and the grinding motor ensures the force balance and non-skew of the grinding device after it is installed on the busbar, ensuring the grinding accuracy. By floatingly connecting the traveling mechanism and the moving seat through a second follower spring, it can adapt to the curvature change of the busbar, ensuring that the driving wheel is always in a pressed state with the busbar, ensuring that the driving wheel does not slip and enabling the grinding device to move forward stably. By setting a hanging wheel, the grinding device can be installed on the busbar, ensuring that the grinding device moves along the busbar. By setting a positioning wheel with a protrusion, the relative position of the grinding device and the busbar in the left-right direction can be ensured not to change, ensuring that the device does not derail. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 Structural schematic diagram of the specific embodiment of the present utility model Figure 1 。

[0023] Figure 2 Structural schematic diagram of the specific embodiment of the present utility model Figure 2 。

[0024] Figure 3 Structural schematic diagram of the specific embodiment of the present utility model Figure 3 。

[0025] Figure 4 Assembly structure schematic diagram of the specific embodiment of the present utility model and the busbar Figure 1 。

[0026] Figure 5 Assembly structure schematic diagram of the specific embodiment of the present utility model and the busbar Figure 2 。

[0027] In the figure, 1 is a grinding motor; 2 is a first support plate; 3 is a first guide post; 4 is a controller; 5 is a rechargeable battery; 6 is a hooking wheel; 7 is a positioning wheel; 8 is a grinding wheel; 9 is a driving wheel; 10 is a rotating shaft; 11 is a traveling motor; 12 is a second follower spring; 13 is a first follower spring; 14 is a bus bar; 15 is a contact wire; 16 is a mounting plate; 17 is a wing plate; 18 is a first straight hole groove; 19 is a second straight hole groove; 20 is a second support plate; 21 is a second guide post. Detailed implementation mode

[0028] In order to make the purpose, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in this specific embodiment. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this patent.

[0029] As Figures 1 to 5 shown, this specific implementation mode provides a grinding device for the contact wire 15 of a rigid catenary, including a moving seat, and further includes a grinding mechanism. The grinding mechanism includes a grinding motor 1 and a grinding wheel 8. The grinding motor 1 is arranged on the first support plate 2. The first support plate 2 is in an L-shaped structure. The first support plate 2 is connected to the wing plate 17 outside the moving seat through the first guide post 3. The first support plate 2 and the first guide post 3 can move relative to each other. A first follower spring 13 is vertically arranged between the first support plate 2 and the moving seat. The first follower spring 13 is sleeved on the first guide post 3. The upper end of the first guide post 3 penetrates through the first support plate 2 and is provided with a first limit nut. A first straight hole groove 18 is vertically arranged at the corresponding position of the moving seat. The motor shaft of the grinding motor 1 extends into the first straight hole groove 18 and is connected to the grinding wheel 8. The axis of the grinding wheel 8 is perpendicular to the advancing direction of the moving seat.

[0030] In this specific implementation mode, the grinding mechanism is floatingly connected to the moving seat through the first follower spring 13, so that the grinding mechanism can lift under the action of the contact wire 15, avoiding the grinding wheel 8 from bearing a large load and causing the motor shaft to deform, ensuring the grinding accuracy and the service life of this grinding device; at the same time, floatingly connecting the grinding mechanism can always ensure close contact with the contact wire 15, without relying on adjusting a large grinding amount in the prior art to achieve close contact, and avoiding excessive grinding of the contact wire 15.

[0031] As Figures 4 to 5As shown, this specific embodiment further includes a traveling mechanism, which includes a traveling motor 11 and a driving wheel 9. The driving wheel 9 can move along the lower edge of the busbar 14. The traveling motor 11 and the grinding motor 1 are oppositely arranged outside the moving seat. By symmetrically arranging the traveling motor 11 and the grinding motor 1, it is ensured that the grinding device is balanced and not skewed after being installed on the busbar 14, thus ensuring the grinding accuracy.

[0032] As Figure 2 , Figure 4 and Figure 5 shown, since the busbar 14 has a certain curvature, in order to ensure that the driving wheel 9 always contacts the lower edge of the busbar 14 to generate sufficient friction to avoid slipping, in this specific embodiment, the traveling mechanism further includes a second support plate 20. The second support plate 20 is in an L-shaped structure. The second support plate 20 is connected to the wing plate 17 on the corresponding side of the moving seat through a second guide post 21. The second support plate 20 and the second guide post 21 can move relative to each other. The upper end of the second guide post 21 penetrates the second support plate and is provided with a second limit nut. A second follower spring 12 is sleeved outside the second guide post 21. The two ends of the second follower spring 12 are respectively abutted against the second support plate 20 and the corresponding wing plate 17. A straight hole groove 19 is provided at the corresponding position of the moving seat. The motor shaft of the traveling motor 11 extends into the straight hole groove 19 and is connected to the driving wheel 9.

[0033] As Figure 1 and Figure 5 shown, in order to ensure that this grinding device is installed on the busbar 14, the traveling mechanism further includes a positioning component. The positioning component includes a set of hanging wheels arranged oppositely. The set of hanging wheels includes two hanging wheels 6 arranged oppositely left and right. The hanging wheels 6 are arranged inside the moving seat. The hanging wheels 6 are rotatably connected to the moving seat through telescopic shafts. The telescopic shafts and the moving seat are rotatably connected through bearings. The hanging wheels 6 can move along the upper surface of the lower edge of the busbar 14; during installation, first retract the telescopic shafts, install from below the busbar 14 upwards. After reaching the position, pull the telescopic shafts to adjust the distance between the two hanging wheels 6 so that the hanging wheels 6 lean against both sides of the web of the busbar 14.

[0034] As Figure 1 and Figure 5 shown, in order to prevent this grinding device from swaying left and right under the action of the contact wire 15 and there is a risk of derailment, in this specific embodiment, the traveling mechanism further includes a set of positioning wheels. The set of positioning wheels includes two positioning wheels 7 arranged oppositely left and right. The positioning wheels 7 are rotatably arranged inside the moving seat. The outer circumference of the positioning wheels 7 is provided with protrusions. The protrusions can be in shape fit with the grooves on the lower edge of the busbar 14. The two positioning wheels 7 are arranged on the same rotating shaft 10. The rotating shaft 10 is rotatably penetrated through the inside of the moving seat through bearings; preferably, the outer circumference of the driving wheel 9 is also provided with protrusions. The protrusions can be in shape fit with the grooves on the lower edge of the busbar 14.

[0035] In this specific embodiment, two sets of hanging wheel sets and positioning wheel sets are provided.

[0036] As Figure 1 and Figure 4 shown, in this specific embodiment, two mounting holes are symmetrically provided on both the first support plate 2 and the second support plate 20. Correspondingly, two following springs 13 and two guide columns 3 are provided, and two following springs 12 and two guide columns 21 are also provided. The moving seat includes two opposite mounting plates 16. A wing plate 17 is horizontally provided at the lower part outside the mounting plate 16. The two mounting plates 16 are connected by the rotating shaft 10 of the positioning wheel set; a controller 4 and a rechargeable battery 5 are provided on the mounting plate 16. The controller 4 is electrically connected to the traveling motor 11 and the grinding motor 1.

[0037] Before use, it is necessary to set the compression degree of the following spring 13 by rotating the limit nut I according to the unevenness of the contact wire 15 to ensure that during the whole grinding process, the grinding wheel 8 is always in close contact with the contact wire 15. According to the curvature of the bus bar 14, set the compression degree of the following spring 12 by rotating the limit nut II to ensure that during the whole grinding process, the driving wheel 9 is always in close contact with the lower surface of the lower edge of the bus bar 14.

[0038] It can be seen from the above specific embodiments that the present utility model has the following beneficial effects:

[0039] 1. By floatingly connecting the grinding mechanism and the moving seat through the following spring 13, the grinding mechanism can be lifted and lowered under the action of the contact wire 15, avoiding large loads on the grinding wheel 8 and preventing deformation of the motor shaft, ensuring the grinding accuracy and the service life of the grinding device; at the same time, floatingly connecting the grinding mechanism can always ensure close contact with the contact wire 15, without the need to rely on adjusting a large grinding amount in the prior art to achieve close contact, avoiding excessive grinding of the contact wire 15 and extending the service life of the contact wire 15;

[0040] 2. Symmetrically arranging the traveling motor 11 and the grinding motor 1 ensures that the grinding device is balanced and not skewed after being installed on the bus bar 14, ensuring the grinding accuracy;

[0041] 3. By floatingly connecting the traveling mechanism and the moving seat through the following spring 12, it can adapt to the curvature change of the bus bar 14, ensure that the driving wheel 9 is always in a pressed state with the bus bar 14, ensure that the driving wheel 9 does not slip, and enable the grinding device to move forward stably;

[0042] 4. By providing the hanging wheel 6, the grinding device can be installed on the bus bar 14, ensuring that the grinding device moves along the bus bar 14;

[0043] 5. By setting the positioning wheel 7 of the convex part, the relative position of the grinding device in the left-right direction with respect to the busbar 14 can be ensured not to change, ensuring that the device does not derail.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grinding device for a contact wire of a rigid catenary, comprising a moving seat, characterized in that, It further includes a grinding mechanism, the grinding mechanism includes a grinding motor (1) and a grinding wheel (8), the grinding motor (1) is arranged on a first support plate (2), the first support plate (2) is in an L-shaped structure, the first support plate (2) is connected to a wing plate (17) on the outside of the moving seat through a first guide post (3), the first support plate (2) and the first guide post (3) can move relative to each other, a first follow-up spring (13) is vertically arranged between the first support plate (2) and the moving seat, the first follow-up spring (13) is sleeved on the first guide post (3), the upper end of the first guide post (3) penetrates through the first support plate (2) and is provided with a first limit nut, a first straight hole groove (18) is vertically arranged at the corresponding position of the moving seat, the motor shaft of the grinding motor (1) extends into the first straight hole groove (18) and is connected to the grinding wheel (8), and the axis of the grinding wheel (8) is perpendicular to the advancing direction of the moving seat.

2. The grinding device for the contact wire of a rigid catenary according to claim 1, characterized in that, It further includes a traveling mechanism, the traveling mechanism includes a traveling motor (11) and a driving wheel (9), the driving wheel (9) can move along the busbar, and the traveling motor (11) and the grinding motor (1) are oppositely arranged on the outside of the moving seat.

3. The grinding device for the contact line of a rigid catenary according to claim 2, characterized in that: The traveling mechanism further includes a second support plate (20), the second support plate (20) is in an L-shaped structure, the second support plate (20) is connected to the wing plate (17) on the outside of the corresponding side of the moving seat through a second guide post (21), the second support plate (20) and the second guide post (21) can move relative to each other, the upper end of the second guide post (21) penetrates through the second support plate (20) and is provided with a second limit nut, a second follow-up spring (12) is sleeved outside the second guide post (21), and both ends of the second follow-up spring (12) are abutted against the second support plate (20) and the corresponding wing plate (17) respectively. A second straight hole groove (19) is arranged at the corresponding position of the moving seat, and the motor shaft of the traveling motor (11) extends into the second straight hole groove (19) and is connected to the driving wheel (9).

4. The grinding device for the contact line of a rigid catenary according to claim 3, characterized in that: The traveling mechanism further includes a hooking wheel set, the hooking wheel set includes two hooking wheels (6) arranged oppositely left and right, the hooking wheels (6) are arranged inside the moving seat, the hooking wheels (6) are rotatably connected to the moving seat through telescopic shafts, and the hooking wheels (6) can move along the upper surface of the lower edge of the busbar.

5. The grinding device for the catenary contact wire as claimed in claim 4, wherein The traveling mechanism further includes a positioning wheel set, the positioning wheel set includes two positioning wheels (7) arranged oppositely left and right, the positioning wheels (7) are rotatably arranged inside the moving seat, and a protruding portion is arranged on the outer circumference of the positioning wheels (7), and the protruding portion can be in shape fit with the groove on the lower edge of the busbar.

6. The grinding device for the contact line of a rigid catenary according to claim 5, characterized in that: The two positioning wheels (7) are arranged on the same rotating shaft (10), and the rotating shaft (10) is rotatably arranged through the inside of the moving seat.

7. The grinding device for the contact wire of a rigid catenary according to claim 5, characterized in that, Both the hooking wheel (6) set and the positioning wheel set are provided with two groups.

8. The grinding device for the catenary contact wire as claimed in claim 4, wherein A protruding portion is arranged on the outer circumference of the driving wheel (9), and the protruding portion can be in shape fit with the groove on the lower edge of the busbar.

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