CN212332433U

CN212332433U - Electrified railway contact net tension compensation arrangement

Info

Publication number: CN212332433U
Application number: CN202020690967.8U
Authority: CN
Inventors: 王建东; 杨金龙; 张方欣; 肖环; 马功民; 徐元成; 邬涛; 王冰如; 吴建颖; 卞慧民
Original assignee: North Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Current assignee: North Engineering Co Ltd of China Railway Construction Electrification Bureau Group Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-01-12
Anticipated expiration: 2030-04-29

Abstract

The utility model belongs to the technical field of contact net systems of power supply equipment of electrified railways, in particular to a tension compensation device of a contact net of an electrified railway, which comprises an upper connecting piece and a lower connecting piece, wherein the right end of the upper connecting piece is connected with a lower supporting frame and an upper supporting frame through a fixing bolt, the top surface of the upper supporting frame and the bottom surface of the lower supporting frame are connected with a triangular plate, the inner sides of the lower supporting frame and the upper supporting frame are provided with triangular frames through long bolts, the right end of the triangular frame is rotatably connected with a tensioning wheel through a mandrel, ratchet mechanisms are arranged at the two sides of the tensioning wheel, a steel wire compensation rope is wound outside the tensioning wheel, the bottom end of the steel wire compensation rope is connected with the top end of a spring compensator, the bottom end of the spring compensator is fixedly connected with, the ratchet wheel has high braking strength.

Description

Electrified railway contact net tension compensation arrangement

Technical Field

The utility model belongs to the technical field of electrified railway power supply equipment contact network system, concretely relates to electrified railway contact net tension compensation arrangement.

Background

The catenary and the contact wire of a contact network system in power supply equipment of an electrified railway are influenced by environment and temperature changes, changes such as thermal elongation and cold shrinkage occur, and the line tension is caused to change continuously, although the changes are very slow, the catenary line cannot work normally, in order to ensure the normal work of the catenary line, a tension compensation device is adopted to eliminate the changes of the catenary and the contact wire along with the temperature, the currently adopted catenary wire compensation device in China is generally a weight type compensation device, the structural strength is low, the connection stability is poor, the installation and adjustment are complicated, the later maintenance and replacement are not facilitated, the tooth thickness of a brake ratchet wheel in the compensation device is thinner, and when the catenary and the contact wire break the brake, a brake plate is meshed with the brake teeth, and the teeth are easy to be punched and broken, so that the operation of the railway is influenced.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an electronic railway contact net tension compensation arrangement has that structural strength is high, connection stability is good, and the installation adjustment is convenient, characteristics that ratchet braking intensity is high.

In order to achieve the above object, the utility model provides a following technical scheme: the tension compensation device for the contact net of the electrified railway comprises an upper connecting piece and a lower connecting piece, wherein the upper connecting piece and the lower connecting piece are respectively composed of a left surrounding plate, a right surrounding plate, a connecting bolt, an upper T-shaped reinforcing rib and a lower T-shaped reinforcing rib, the right end of the upper connecting piece is fixedly connected with a lower support frame and an upper support frame through a fixing bolt, the top surface of the upper support frame and the bottom surface of the lower support frame are fixedly connected with a triangular plate, triangular frames are fixedly arranged on the inner sides of the lower support frame and the upper support frame through long bolts, the right end of each triangular frame is rotatably connected with a tension pulley through a mandrel, ratchet mechanisms are arranged on two sides of each tension pulley and comprise a shell, a brake pawl and a ratchet wheel, a steel wire compensation rope is wound on the outer side of each tension pulley, the bottom end of each steel, The bottom end of the spring compensator is fixedly connected with the top surface of a connecting plate fixedly connected with the right end of the lower connecting piece, and the bottom surface of the connecting plate is fixedly connected with the top surface of the bottom plate through a connecting beam.

Preferably, the left enclosing plate and the right enclosing plate are of square plate structures with the same size and shape, the upper ends of the left enclosing plate and the right enclosing plate are vertically connected with the upper T-shaped reinforcing ribs, the bottom ends of the left enclosing plate and the right enclosing plate are vertically connected with the lower T-shaped reinforcing ribs, and the left enclosing plate and the right enclosing plate are both provided with internal thread through holes which are meshed with the connecting bolts in a matching mode; go up T type strengthening rib and T type strengthening rib down can provide the holding power of horizontal direction, the stability of connecting piece and lower connecting piece and the body steel post connection of railway contact net in the reinforcing.

Preferably, the upper support frame and the lower support frame have the same structural size, the upper support frame and the lower support frame are both provided with internal thread vertical through holes which are engaged with the long bolts in a matching manner, and the left end of the tripod is of a circular tube structure; through using the long bolt can be quick with tripod fixed mounting in the inboard of upper carriage and under bracing frame, can promote the installation effectiveness, and be convenient for change the tripod in the future.

Preferably, the inner sides of the two ends of the sleeve are slidably connected with the telescopic rod, and the telescopic rod is fixedly connected with the two ends of the spring; the spring compensator can keep the tension on the contact net lead constant and permanent, thereby achieving the effect of constant tension compensation on the contact net of the electrified railway.

Preferably, the side surface of the ratchet wheel is fixedly connected with the side surface of the tension wheel, the ratchet wheel and the tension wheel are rotatably connected with the spindle, the shell is fixedly connected with the spindle, and the braking pawl is fixedly mounted on the inner wall of the shell; the ratchet mechanisms arranged on the two sides of the tensioning wheel can bear large acting force, so that the tensioning wheel is prevented from slipping backwards, and the braking is safer and more reliable.

Compared with the prior art, the beneficial effects of the utility model are that: the upper T-shaped reinforcing rib and the lower T-shaped reinforcing rib can provide supporting force in the horizontal direction, the connection stability of the upper connecting piece and the lower connecting piece with a support steel column of a railway contact net is enhanced, the tripod can be quickly and fixedly installed on the inner sides of the upper supporting frame and the lower supporting frame through the long bolt, the installation efficiency of the tripod is improved, and the tripod can be conveniently replaced in the future; the spring compensator can keep the tension on the contact net lead constant and permanent, thereby achieving the effect of constant tension compensation on the electrified railway contact net; the ratchet mechanisms arranged on the two sides of the tensioning wheel can bear large acting force, so that the tensioning wheel is prevented from slipping backwards, and the braking is safer and more reliable.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the upper connecting member of the present invention;

FIG. 3 is a top view of the middle and lower connecting member of the present invention;

FIG. 4 is a schematic structural view of the ratchet mechanism of the present invention;

FIG. 5 is a schematic structural diagram of the spring compensator according to the present invention;

in the figure: 1. an upper connecting piece; 2. a lower connecting piece; 3. fixing the bolt; 4. a lower support frame; 5. a set square; 6. a long bolt; 7. a tripod; 8. a tension wheel; 9. a ratchet mechanism; 10. a mandrel; 11. a steel wire compensation rope; 12. a spring compensator; 13. a connecting plate; 14. a base plate; 15. a connecting beam; 16. an upper support frame; 101. a left coaming; 102. a right coaming; 103. a connecting bolt; 104. arranging a T-shaped reinforcing rib; 105. a lower T-shaped reinforcing rib; 121. a sleeve; 122. a telescopic rod; 123. a spring; 901. a housing; 902. a brake pawl; 903. and (4) ratchet wheels.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: a tension compensation device for an electrified railway contact net comprises an upper connecting piece 1 and a lower connecting piece 2, wherein the upper connecting piece 1 and the lower connecting piece 2 are respectively composed of a left enclosing plate 101, a right enclosing plate 102, a connecting bolt 103, an upper T-shaped reinforcing rib 104 and a lower T-shaped reinforcing rib 105, the right end of the upper connecting piece 1 is fixedly connected with a lower support frame 4 and an upper support frame 16 through a fixing bolt 3, the top surface of the upper support frame 16 and the bottom surface of the lower support frame 4 are fixedly connected with a triangular plate 5, the inner sides of the lower support frame 4 and the upper support frame 16 are fixedly provided with a triangular frame 7 through a long bolt 6, the right end of the triangular frame 7 is rotatably connected with a tension wheel 8 through a mandrel 10, two sides of the tension wheel 8 are provided with ratchet mechanisms 9, each ratchet mechanism 9 comprises a shell 901, a brake pawl 902 and a ratchet 903, the bottom end of the steel wire compensation rope 11 is fixedly connected with the top end of the spring compensator 12, the spring compensator 12 comprises a sleeve 121, an expansion rod 122 and a spring 123, the bottom end of the spring compensator 12 is fixedly connected with the top surface of a connecting plate 13 fixedly connected with the right end of the lower connecting piece 2, and the bottom surface of the connecting plate 13 is fixedly connected with the top surface of the bottom plate 14 through a connecting beam 15.

Specifically, the left enclosing plate 101 and the right enclosing plate 102 are square plate structures with the same size and shape, the upper ends of the left enclosing plate 101 and the right enclosing plate 102 are vertically connected with the upper T-shaped reinforcing rib 104, the bottom ends of the left enclosing plate 101 and the right enclosing plate 102 are vertically connected with the lower T-shaped reinforcing rib 105, and the left enclosing plate 101 and the right enclosing plate 102 are both provided with internal thread through holes which are in fit engagement with the connecting bolts 103; go up T type strengthening rib 104 and T type strengthening rib 105 down can provide the holding power of horizontal direction, strengthen the stability of connecting piece 1 and lower connecting piece 2 and the body steel post connection of railway contact net.

Specifically, the upper support frame 16 and the lower support frame 4 have the same structural size, the upper support frame 16 and the lower support frame 4 are both provided with internal thread vertical through holes which are engaged with the long bolts 6 in a matching manner, and the left end of the tripod 7 is of a circular tube structure; through using the long bolt 6 can be quick with tripod 7 fixed mounting in the inboard of last support frame 16 and under bracing frame 4, can promote the installation effectiveness, and be convenient for change tripod 7 in the future.

Specifically, the inner sides of the two ends of the sleeve 121 are slidably connected to the telescopic rod 122, and the telescopic rod 122 is fixedly connected to the two ends of the spring 123; the spring compensator 12 can keep the tension on the contact net lead constant and permanent, thereby achieving the effect of constant tension compensation on the contact net of the electrified railway.

Specifically, the side surface of the ratchet 903 is fixedly connected with the side surface of the tension pulley 8, the ratchet 903 and the tension pulley 8 are rotatably connected with the spindle 10, the housing 901 is fixedly connected with the spindle 10, and the braking pawl 902 is fixedly mounted on the inner wall of the housing 901; the ratchet mechanisms 9 arranged on the two sides of the tension wheel 8 can bear larger acting force, so that the tension wheel 8 is prevented from slipping backwards, and the braking is safer and more reliable.

The working principle and the using process of the invention are as follows: the user is with upper junction spare 1 and lower junction spare 2 difference fixed mounting different height departments on the support steel column of railway high voltage electricity, then use fixing bolt 3 with bottom suspension strut 4, upper support frame 16 is connected with upper junction spare 1, with bottom junction spare 2 and connecting plate 13, bottom plate 14, tie-beam 15 is connected, later through stay bolt 6 with tripod 7 fixed mounting between bottom suspension strut 4 and upper support frame 16, connect the one end and the take-up pulley 8 of steel wire compensation rope 11, the upper end of spring compensator 12 is connected to the other end, and the top surface of the bottom fixed connection connecting plate 13 of spring compensator 12, after the installation, when steel wire compensation rope 11 atress, spring 123 produces elastic deformation, make telescopic link 122 flexible, play the effect of tension compensation, ratchet 9 on the take-up pulley 8 plays the braking action.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electronic railway connecting net tension compensation arrangement which characterized in that: the connecting device comprises an upper connecting piece (1) and a lower connecting piece (2), wherein the upper connecting piece (1) and the lower connecting piece (2) are composed of a left enclosing plate (101), a right enclosing plate (102), a connecting bolt (103), an upper T-shaped reinforcing rib (104) and a lower T-shaped reinforcing rib (105), the right end of the upper connecting piece (1) is fixedly connected with a lower supporting frame (4) and an upper supporting frame (16) through a fixing bolt (3), the top surface of the upper supporting frame (16) and the bottom surface of the lower supporting frame (4) are fixedly connected with a triangular plate (5), the inner sides of the lower supporting frame (4) and the upper supporting frame (16) are fixedly provided with a triangular frame (7) through a long bolt (6), the right end of the triangular frame (7) is rotatably connected with a tension wheel (8) through a mandrel (10), ratchet mechanisms (9) are installed on two sides of the tension wheel (8), and each, The brake device comprises a brake pawl (902) and a ratchet wheel (903), wherein a steel wire compensation rope (11) is wound on the outer side of a tension wheel (8), the bottom end of the steel wire compensation rope (11) is fixedly connected with the top end of a spring compensator (12), the spring compensator (12) comprises a sleeve (121), an expansion rod (122) and a spring (123), the bottom end of the spring compensator (12) is fixedly connected with the top surface of a connecting plate (13) fixedly connected with the right end of a lower connecting piece (2), and the bottom surface of the connecting plate (13) is fixedly connected with the top surface of a bottom plate (14) through a connecting beam (15).

2. The tension compensation device for the contact network of the electrified railway according to claim 1, characterized in that: the left surrounding plate (101) with right surrounding plate (102) are the same square plate structure of big size shape, left surrounding plate (101) with the upper end of right surrounding plate (102) is connected perpendicularly go up T type strengthening rib (104), left surrounding plate (101) with the bottom of right surrounding plate (102) is connected perpendicularly lower T type strengthening rib (105), left surrounding plate (101) with all be equipped with on right surrounding plate (102) with the internal thread through-hole of connecting bolt (103) adaptation interlock.

3. The tension compensation device for the contact network of the electrified railway according to claim 1, characterized in that: the structure size of upper bracket (16) with lower carriage (4) is the same, upper bracket (16) with lower carriage (4) all be equipped with the perpendicular through-hole of internal thread of stay bolt (6) adaptation interlock, the left end of tripod (7) is the pipe structure.

4. The tension compensation device for the contact network of the electrified railway according to claim 1, characterized in that: the inner sides of the two ends of the sleeve (121) are connected with the telescopic rod (122) in a sliding mode, and the telescopic rod (122) is fixedly connected with the two ends of the spring (123).

5. The tension compensation device for the contact network of the electrified railway according to claim 1, characterized in that: the side surface of the ratchet wheel (903) is fixedly connected with the side surface of the tension wheel (8), the ratchet wheel (903) and the tension wheel (8) are rotatably connected with the spindle (10), the shell (901) is fixedly connected with the spindle (10), and the brake pawl (902) is fixedly installed on the inner wall of the shell (901).