CN113103874A

CN113103874A - Pantograph device of electric locomotive

Info

Publication number: CN113103874A
Application number: CN202110478347.7A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-07-13

Abstract

The invention provides an electric locomotive pantograph device, which comprises a pantograph head, wherein the pantograph head is a horizontally arranged long-strip-shaped metal plate, and two ends of the pantograph head are bent downwards to form end angles; the contact sliding plate is fixedly arranged on the upper surface of the bow head and is used for directly contacting with a contact net to receive power; the base is fixedly arranged below the bow head and used for supporting the bow head; the rotary supporting structure is arranged on two sides of the bow head in parallel, the rotary supporting structure is elastically connected with the base, the rotary supporting structure is in rolling contact with the contact net when in contact with the contact net, the highest point of the rotary supporting structure in the horizontal direction is higher than that of the contact sliding plate, and the rotary supporting structure is downward acted and moves downward when in contact with the contact net. The invention can protect the bow, and has good power receiving function and good application prospect.

Description

Pantograph device of electric locomotive

Technical Field

The invention relates to the technical field of power supply equipment of electric locomotives, in particular to a pantograph device of an electric locomotive.

Background

The pantograph is an auxiliary assembly that electric traction locomotive acquires the electric energy from the contact net, thereby it contacts with the contact net selectively through the elevating system drive and switches on, along with the locomotive operation, the pantograph can take place the friction with the contact net, especially on high-speed train, high-speed friction can take place with the contact net always to the pantograph, this contact part material intensity requirement on the pantograph is high, prior art adopts the installation carbon slide to carry out direct frictional contact, utilize the self-lubricating performance that the carbon slide possessed, reduce the material loss that the friction brought. However, this method requires periodic replacement of the carbon slide plate, which increases the amount of maintenance and consumable material.

However, when the automobile runs into severe weather, if the icing phenomenon appears on the contact net, the abrasion of the carbon sliding plate can be directly accelerated, meanwhile, the carbon sliding plate has material defects, and the carbon sliding plate is easy to break and fall into blocks in the contact vibration process, so that the contact effect between the carbon sliding plate and the contact net is influenced, and the automobile can be directly stopped or driven easily when the automobile is severe.

Disclosure of Invention

In view of this, the invention provides an electric locomotive pantograph device capable of effectively reducing the abrasion of a carbon sliding plate and prolonging the service life of the carbon sliding plate.

The technical scheme of the invention is realized in such a way, and the invention provides an electric locomotive pantograph device, which comprises:

the bow head is a horizontally arranged long-strip-shaped metal plate, and two ends of the bow head are bent downwards to form end angles;

the contact sliding plate is fixedly arranged on the upper surface of the bow head and is used for directly contacting with a contact net to receive power;

the base is fixedly arranged below the bow head and used for supporting the bow head;

the rotary supporting structure is arranged on two sides of the bow head in parallel, the rotary supporting structure is elastically connected with the base, the rotary supporting structure is in rolling contact with the contact net when in contact with the contact net, the highest point of the rotary supporting structure in the horizontal direction is higher than that of the contact sliding plate, and the rotary supporting structure is downward acted and moves downward when in contact with the contact net.

On the basis of above technical scheme, it is preferred, rotate bearing structure and include the pivot, rotate piece and elastic support piece, rotate the piece cover and establish in the outside of pivot and can rotate along the pivot, the pivot passes through elastic support piece and base fixed connection, and the length direction of pivot and the length direction of bow are parallel to each other.

On the basis of the technical scheme, preferably, the number of the rotating parts sleeved on each rotating shaft is not less than two.

On the basis of the above technical solution, preferably, the surface of the rotating shaft between two adjacent rotating parts protrudes along the radial direction to form a limiting part.

It is further preferred that the projections of the gaps between any two adjacent rotating members on the rotating shaft on one side of the bow and the rotating shaft on the other side of the bow are located on the surfaces of the rotating members on the rotating shafts on the side.

On the basis of the above technical solution, preferably, the electric fan further includes an electric brush, the electric brush is fixedly mounted on the surface of the rotating shaft, the electric brush abuts against the end portion of the rotating member, and the electric brush is electrically connected with the bow.

On the basis of the above technical solution, preferably, the electric brush further comprises an electric brush abutting member, the electric brush abutting member is fixedly installed on the surface of the rotating shaft, and the electric brush abutting member drives the electric brush to abut against the end portion of the rotating member.

On the basis of above technical scheme, it is preferred, tight piece in brush top includes support piece, guide post and spring, support piece fixed mounting is on the surface of pivot, and the one end fixedly connected with guide post of pivot is kept away from to support piece, the one end that support piece was kept away from to the guide post is just to the tip of rotating the piece, the brush cover is established on the guide post, passes through spring coupling between brush and the support piece.

On the basis of the above technical scheme, preferably, the elastic support comprises a first support rod, a second support rod, a first support seat, a second support seat and a support spring, the first support seat is fixedly installed on the base, the second support seat is parallel to the first support seat, the rotating shaft is fixedly installed on the second support seat in parallel, one end of the first support rod is hinged to the first support seat, the other end of the first support rod is connected with the second support seat in a sliding mode, the second support rod is hinged to the first support rod, one end, close to the first support rod, of the second support rod is hinged to the second support seat, the other end of the second support rod is connected with the first support seat in a sliding mode, and one face, close to the second support seat, of the first support seat is connected with the second support seat in a fastening mode through the support spring.

On the basis of above technical scheme, preferred, still include the gag lever post, seted up the through-hole on the first supporting seat, gag lever post fixed mounting is close to the one side of first supporting seat at the second supporting seat, and the gag lever post runs through the through-hole, just the coaxial setting of gag lever post is in supporting spring.

On the basis of the above technical solution, preferably, the sliding ends of the first support rods of two adjacent elastic support members are fixedly connected.

On the basis of the above technical solution, preferably, the sliding ends of the second support rods in two adjacent elastic support members are fixedly connected.

Compared with the prior art, the pantograph device of the electric locomotive has the following beneficial effects:

(1) the pantograph is improved, the rotary supporting structures are arranged on the two sides of the pantograph head, the rotary supporting structures can be in rolling contact with a contact net and can support the contact net, so that the static pressure of the contact net on a contact sliding plate on the surface of the pantograph head is reduced, the abrasion of the contact sliding plate is reduced, the rotary supporting structures can realize a buffering effect, the impact damage of the contact sliding plate caused by the vibration of the contact net in the high-speed running process is prevented, and the protective effect of the contact sliding plate is achieved;

(2) in order to further improve the current collecting effect of the pantograph, the invention also improves the rotating support structure, and the side surface of the rotating part is provided with the electric brush structure, thereby ensuring friction resistance and having good conductive effect;

(3) furthermore, in order to avoid the problem that the angle of the rotating support structure is low along with the operation of the pantograph and the support stability is affected, the scissor-fork type elastic support structure is adopted, so that the corresponding rotating part and the rotating shaft can be always kept parallel to the pantograph head;

(4) in order to ensure better supporting and protecting effects, the rotary supporting structures on the two sides can realize synchronous lifting, the contact net can be simultaneously subjected to damping, buffering and supporting effects, and the bow head and the contact sliding plate in the middle are uniformly stressed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an isometric view of an electric locomotive pantograph assembly of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a top view of an electric locomotive pantograph apparatus of the present invention;

FIG. 4 is a front view of the pantograph apparatus of the electric locomotive of the present invention;

FIG. 5 is a partial cross-sectional view of a shaft portion of the pantograph apparatus for electric locomotives according to the present invention;

FIG. 6 is a partial isometric view of a rotation support structure in the pantograph arrangement of an electric locomotive according to the present invention;

fig. 7 is a partially enlarged view of a portion a in fig. 5.

In the figure: 1-bow, 2-contact slide, 3-base, 4-rotation support structure, 41-rotation axis, 42-rotation element, 43-elastic support element, 411-limit part, 5-brush, 6-brush top member, 61-support element, 62-guide column, 63-spring, 431-first support rod, 432-second support rod, 433-first support seat, 434-second support seat, 435-support spring, 4331-through hole, 436-limit rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, in conjunction with fig. 2 to 7, the pantograph apparatus for electric locomotives of the present invention comprises: a bow 1, a contact slide 2, a base 3 and a rotation support structure 4.

As the conventional embodiment, the contact sliding plate 2 is mounted on the surface of the pantograph head 1, the contact sliding plate 2 is usually made of graphite, and is directly and electrically connected with a catenary in a sliding contact manner, so as to achieve the purpose of power supply, in order to avoid the aging of rapid wear of the contact sliding plate 2 caused by long-term friction at one position, the catenary is set in a bending and routing manner, so that the contact position of the catenary relative to the contact sliding plate 2 is moved back and forth, so as to achieve more uniform wear, but the wear rate of the contact sliding plate 2 is still accelerated by the manner, and in the process of high-speed operation of the electric locomotive, the catenary vibrates or shakes the surface of the contact sliding plate 2, on one hand, the contact sliding plate 2 may be directly damaged, on the other hand, the contact pressure with the surface of the contact sliding plate 2 is unbalanced, the wear is accelerated.

In the specific embodiment of the invention, the rotary supporting structures 4 are arranged on both sides of the bow 1, the rotary supporting structures 4 and the bow 1 are both fixedly arranged on the surface of the base 3, and the distance from the rotary supporting structures 4 to the base 3 is greater than the distance from the surface of the contact sliding plate 2 to the base 3, so that the contact net is inevitably contacted with the rotary supporting structures 4 before being contacted with the contact sliding plate 2, on one hand, the rotary supporting structures 4 play a role in buffering, and can reduce the vibration impact force brought by the contact net in the high-speed running process of the electric locomotive, and on the other hand, the supporting function of the rotary supporting structures 4 can reduce the contact action force between the contact net and the contact sliding plate 2, thereby reducing the friction loss. The service life of the contact sliding plate 2 is prolonged.

In a specific embodiment, the rotary support structure 4 rotates relative to the overhead line system, the material loss generated by dynamic friction is reduced in a rolling friction mode, and the rotary support structure 4 is elastically connected relative to the base 3.

In a specific embodiment, the rotating support structure 4 includes a rotating shaft 41, a rotating member 42 and an elastic supporting member 43, the rotating shaft 41 is connected to the base 3 through the elastic supporting member 43, the rotating member 42 is coaxially disposed on the rotating shaft 41, the rotating support structure 4 directly contacts with an overhead line system through the rotating member 42, a surface of the rotating member 42 rolls with respect to the overhead line system, and the rotating member 42 rotates with respect to the rotating shaft 41.

In the above embodiment, the rotating member 42 is a bearing as a preferred embodiment.

The rotating part 42 rotates relative to the rotating shaft 41, the rotating part 42 rolls relative to the contact net, so that the friction loss of the contact net is very small, and the rotating part 42 and the rotating shaft 41 can be made of high-wear-resistance special materials, such as high-manganese wear-resistance steel, and the service life is prolonged.

In order to ensure the supporting effect, the length direction of the rotating shaft 41 is parallel to the length direction of the main body part of the bow 1, and the two ends of the bow 1 are bent downwards to form an end angle structure, so that the bow scraping with a contact net can be avoided.

In the specific embodiment, the number of the rotating members 42 sleeved on each rotating shaft 41 is not less than two.

In the above embodiment, since the rotating member 42 rotates for a long time in the driving process of the electric locomotive, and the contact position of the contact net and the rotating member 42 changes, in order to reduce the rotational wear of the rotating member 42, and avoid the problem that the length of the rotating member 42 is too large, the rotational driving force is too large and the rotational inertia is too large, a plurality of rotating members 42 connected in series are provided, so that when the contact net contacts the rotating member 42 at different positions, the rotating member 42 at the corresponding position rotates, the rotating members at other positions are not subjected to force, thus, the friction loss of the rotating member 42 to the rotating shaft 41 is reduced, the contact friction force between the rotating member 42 and the contact net is reduced, the rotational inertia generated by the rotation of the rotating member 42 is reduced, the required driving force is reduced, and the acting force on the contact net.

In the embodiment, the surface of the rotating shaft 41 between two adjacent rotating members 42 protrudes outward in the radial direction to form the limiting portion 411.

In the above embodiment, the limiting portion 411 may be a circular ring-shaped protrusion, or may be a protrusion structure on one side surface of the rotating shaft 41, and the limiting portion 411 performs limiting and blocking on the adjacent rotating members 42, so as to ensure that each rotating member 42 rotates independently and cannot affect each other.

In the specific embodiment, the projection of the gap between any two adjacent rotating parts 42 on the rotating shaft 41 on one side of the bow 1 on the rotating shaft 41 on the other side of the bow 1 is located on the surface of the rotating part 42 on the rotating shaft 41 on the side.

In the above embodiment, because the central line of the relative electric locomotive of line direction of walking of contact net inclines, therefore the position that the contact net and rotation piece 42 contacted can change all the time, in the gap between two adjacent rotation pieces 42 is slided into to the in-process of avoiding the contact net position change, this embodiment will be located the rotation bearing structure 4 of bow 1 both sides and go up the position that the rotation piece 42 that corresponds installed and stagger the setting, because the skew angle that the contact net was compared to distance between two adjacent rotation bearing structure 4 can be ignored, consequently when rotating the piece 42 position that corresponds on two adjacent rotation bearing structure 4 staggers, the contact net will not slide simultaneously in the recess that is located between the rotation piece 42 of bow 1 both sides, thereby can ensure the contact net and normally remove, avoid scraping the bow.

In the specific embodiment, the pantograph further comprises a brush 5, the brush 5 is fixedly mounted on the surface of the rotating shaft 41, the brush 5 abuts against the end of the rotating member 42, and the brush 5 is electrically connected with the pantograph 1.

In the above embodiment, in order to further improve the current collecting effect between the contact network and the pantograph of the present application, the rotating support structure 4 is also subjected to current collecting improvement, and in order to ensure that the friction force between the rotating member 42 and the rotating shaft 41 is small enough, the electrical contact effect between the surfaces of the rotating member 42 and the rotating shaft 41 will inevitably deteriorate, and the current collecting effect is not good, so that the brush 5 is arranged at the end of the rotating sword 42, and the brush 5 is connected with the pantograph head 1 through a separate circuit, thereby further improving the current collecting effect of the pantograph of the present invention.

In the above embodiment, the brush 5 is connected to the end portion of the rotor 42, and the end portion of the rotor 42 rotates with a smaller displacement than the side surface thereof, so that the friction against the brush can be reduced by contacting the end portion with the brush 5.

In the specific embodiment, the electric brush pressing member 6 is further included, the electric brush pressing member 6 is fixedly installed on the surface of the rotating shaft 41, and the electric brush pressing member 6 drives the electric brush 5 to be pressed against the end portion of the rotating member 42.

In the above embodiment, since the rotating member 42 may slide in the horizontal direction during the operation, in order to ensure that the brush 5 can be closely attached to the surface of the rotating member 42, the brush 5 is closely attached by the brush fastening member 6, thereby ensuring good contact between the brush 5 and the rotating member 42.

In the embodiment, one brush 5 and one brush holding member 6 may be provided on the side of each of the rotating members 42.

In a specific embodiment, the brush holding member 6 includes a supporting member 61, a guiding post 62 and a spring 63, the supporting member 61 is fixedly installed on the surface of the rotating shaft 41, the guiding post 62 is fixedly connected to an end of the supporting member 61 away from the rotating shaft 41, an end of the guiding post 62 away from the supporting member 61 is opposite to the end of the rotating member 42, the brush 5 is sleeved on the guiding post 62, and the brush 5 is connected with the supporting member 61 through the spring 62.

In the above embodiment, the brush 5 is provided with the guide hole corresponding to the guide post 62, so that the brush 5 can be sleeved on the guide post 62, and the spring 62 is used for pushing the brush 5 against the surface of the rotating member 42.

In a specific embodiment, the elastic support 43 includes a first support rod 431, a second support rod 432, a first support seat 433, a second support seat 434 and a support spring 435, the first support seat 433 is fixedly installed on the base 3, the second support seat 434 is parallel to the first support seat 433, the rotating shaft 41 is parallel and fixedly installed on the second support seat 432, one end of the first support rod 431 is hinged to the first support seat 433, the other end of the first support rod 431 is slidably connected to the second support seat 434, the second support rod 432 is hinged to the first support rod 431, one end of the second support rod 432 near the hinged end of the first support rod 431 is hinged to the second support seat 434, the other end of the second support rod 432 is slidably connected to the first support seat 433, and one side of the first support seat 433 near the second support seat 434 is fixedly connected to the second support seat 434 through the support spring 435.

In the above embodiment, since the length direction of the rotating shaft 41 is almost perpendicular to the catenary, the released position may be considered as a point contact, and the position of the contact point moves along with the movement of the electric locomotive, which inevitably causes uneven stress on the rotating shaft 41, in order to avoid that the rotating shaft 41 tilts in the horizontal direction due to uneven stress, which affects the contact effect with the catenary and the stability of the operation of the rotating shaft 41, it is necessary that the rotating shaft 41 not only has a vertical elastic support function, but also can be always kept parallel to the bow 1 when stressed, in this embodiment, a scissor-fork type elastic support structure is adopted, a cross-shaped hinge structure is formed by hinging the middle portions of the first support rod 431 and the second support rod 432, the same ends of the two support rods are hinged to the first support seat 433 and the second support seat 434, and the other ends are slidably connected to the second support seat 434 and the first support seat 433, then connect through supporting spring 435 between first supporting seat 433 and the second supporting seat 434, corresponding, the parallel fixed mounting of pivot 41 keeps away from the one side of first supporting seat 433 at second supporting seat 434, adopts this scissors fork buffer structure can guarantee that pivot 41 remains the level throughout to when can preventing that the contact net from moving to the different positions department of pivot 41, the pivot slope finally influences the relatively stable between contact net and the pivot 41.

In a specific embodiment, the portable electronic device further includes a limiting rod 436, a through hole 4331 is formed in the first supporting seat 433, the limiting rod 436 is fixedly installed on one surface of the second supporting seat 434 close to the first supporting seat 433, the limiting rod 436 penetrates through the through hole 4331, and the limiting rod 436 is coaxially disposed in the supporting spring 435.

In the above embodiment, the limiting rod 436 can further ensure the parallelism of the relative movement between the first supporting seat 433 and the second supporting seat 434, and can limit and support the supporting spring 435.

In a specific embodiment, the sliding ends of the first support rods 431 of adjacent two elastic supports 43 are fixedly connected.

In the above embodiment, the sliding ends of the two first supporting rods 431 are fixedly connected to ensure that the elastic supporting members 43 on both sides are lifted synchronously, so that the stable operation of the whole pantograph is maintained, and the rotating supporting structures 4 at both ends of the pantograph head 1 move simultaneously to avoid the influence of the vibration of the overhead line system on the pantograph head 1.

In a specific embodiment, the sliding ends of the second support rods 432 of two adjacent elastic supports 43 are fixedly connected.

In the above embodiment, further, the same stabilizing effect can be achieved by fixedly connecting the sliding ends of the two second support rods 432.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An electric locomotive pantograph device, comprising:

the bow head (1) is a horizontally arranged long-strip-shaped metal plate, and two ends of the bow head (1) are bent downwards to form end angles;

the contact sliding plate (2) is fixedly arranged on the upper surface of the bow head (1) and is used for directly contacting with a contact net to receive power;

the base (3) is fixedly arranged below the bow head (1) and used for supporting the bow head (1);

rotate bearing structure (4), rotate bearing structure (4) parallel arrangement in the both sides of bow (4), rotate bearing structure (4) and base (3) elastic connection, rotate bearing structure (4) and contact net rolling contact when contacting with the contact net, the highest point of rotating bearing structure (4) horizontal direction is higher than the highest point of contact slide (2), receive downward effect and downstream when rotating bearing structure (4) and contact net contact.

2. The pantograph apparatus of an electric locomotive according to claim 1, wherein the rotation support structure (4) comprises a rotation shaft (41), a rotation member (42) and an elastic support member (43), the rotation member (42) is sleeved on the outer side of the rotation shaft (41) and can rotate along the rotation shaft (41), the rotation shaft (41) is fixedly connected with the base (3) through the elastic support member (43), and the length direction of the rotation shaft (41) is parallel to the length direction of the pantograph head (1).

3. The pantograph device for electric locomotives according to claim 2, wherein the number of the rotating members (42) fitted on each rotating shaft (41) is not less than two.

4. The pantograph device for electric locomotives according to claim 3, wherein the surface of the rotating shaft (41) between the two adjacent rotating members (42) is radially protruded to form a stopper portion (411).

5. An electric locomotive pantograph arrangement according to claim 3, wherein the projection of the gap between any two adjacent rotors (42) on the shaft (41) on one side of the pantograph head (1) onto the shaft (41) on the other side of the pantograph head (1) is located on the surface of the rotor (42) on the shaft (41) on that side.

6. The pantograph device for electric locomotives according to claim 2, further comprising a brush (5), wherein said brush (5) is tightly mounted on the surface of the rotating shaft (41), the brush (5) is held against the end of the rotating member (42), said brush (5) is electrically connected to the pantograph head (1).

7. The pantograph apparatus of an electric locomotive according to claim 6, further comprising a brush holding member (6), said brush holding member (6) being fixedly mounted on a surface of the rotating shaft (41), the brush holding member (6) driving the brush (5) against an end of the rotating member (42).

8. The pantograph apparatus for electric locomotives according to claim 7, wherein said brush holding member (6) comprises a supporting member (61), a guiding post (62) and a spring (63), said supporting member (61) is fixedly mounted on the surface of the rotating shaft (41), the guiding post (62) is fixedly connected to the end of the supporting member (61) far away from the rotating shaft (41), the end of the guiding post (62) far away from the supporting member (61) is opposite to the end of the rotating member (42), said brush (5) is sleeved on the guiding post (62), and the brush (5) and the supporting member (61) are connected by the spring (63).

9. The pantograph device for electric locomotives according to claim 2, wherein said elastic support member (43) comprises a first support rod (431), a second support rod (432), a first support seat (433), a second support seat (434) and a support spring (435), the first support seat (433) is fixedly installed on the base (3), the second support seat (434) is parallel to the first support seat (433), the rotation shaft (41) is fixedly installed on the second support seat (434) in parallel, one end of the first support rod (431) is hinged with the first support seat (433), the other end of the first support rod (431) is slidably connected with the second support seat (434), the second support rod (432) is hinged with the first support rod (431), and the end of the second support rod (432) near the hinged end of the first support rod (431) is hinged with the second support seat (434), the other end of the second supporting rod (432) is connected with the first supporting seat (433) in a sliding mode, and one surface, close to the second supporting seat (434), of the first supporting seat (433) is fixedly connected with the second supporting seat (434) through a supporting spring (435).

10. The pantograph device for electric locomotives according to claim 9, further comprising a limiting rod (436), wherein the first supporting seat (433) is formed with a through hole (4331), the limiting rod (436) is fixedly mounted on a surface of the second supporting seat (434) close to the first supporting seat (433), the limiting rod (436) penetrates through the through hole (4331), and the limiting rod (436) is coaxially disposed in the supporting spring (435).