CN110682259A

CN110682259A - Multi-position rotatable pantograph bottom frame overhauling device

Info

Publication number: CN110682259A
Application number: CN201911036641.1A
Authority: CN
Inventors: 李金柱; 袁善民
Original assignee: CRRC Luoyang Locomotive Co Ltd
Current assignee: CRRC Luoyang Locomotive Co Ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-01-14

Abstract

A multi-position rotatable pantograph underframe overhauling device comprises a support frame I, a support frame II, an adjusting screw, a double-lug plate, a fixed seat I and a fixed seat II; the supporting frame I and the supporting frame II are respectively welded into a door-shaped frame structure by two upright posts and a cross beam, the supporting frame I and the supporting frame II are symmetrically arranged at two ends of a pantograph bottom frame, a double-lug plate with an upward opening is arranged in the middle of the upper end face of the cross beam of the supporting frame I, and two positioning nuts are arranged in the middle of the upper end face of the cross beam of the supporting frame II; the adjusting screw rods are respectively arranged in a double-lug plate center hole on the support frame I and a positioning nut on the support frame II; the fixing seat I and the fixing seat II are connected with the adjusting screw rods at two ends through welding respectively. The pantograph base frame maintenance device is simple in structure, reasonable in design, low in manufacturing cost, time-saving, labor-saving, simple and convenient to operate and easy to popularize, and can meet maintenance requirements of pantograph base frames at different positions and different angles.

Description

Multi-position rotatable pantograph bottom frame overhauling device

Technical Field

The invention belongs to the technical field of railway locomotive maintenance, and particularly relates to a multi-position rotatable pantograph underframe maintenance device.

Background

The electric locomotive has the advantages of high starting speed, large traction force and the like, and along with the continuous improvement of an electrified line, the electric locomotive not only has wider application, but also has more advanced development, such as a renaming number and the like. The main equipment of the electric locomotive is a pantograph, electric energy is obtained from a contact net and is transmitted to the locomotive, the pantograph is arranged on the roof of the locomotive or a bullet train, and a pantograph underframe is used as a component for supporting the pantograph, so that the quality of the pantograph directly influences the running safety of the locomotive and is a vital component. The main overhaul contents of the pantograph underframe comprise magnetic powder inspection, defect welding repair and finishing after welding repair. The pantograph chassis accessories are more, and in order to guarantee magnetic particle inspection, repair by welding and finishing quality, the pantograph chassis needs to be turned to different positions in the maintenance process so as to ensure that the working position is in the ship-shaped position. At present, the main problem that pantograph chassis exists when overhauing is: firstly, a tool is not adopted, the turnover is directly carried out by bare hands of maintenance personnel, the workload is large, and the working efficiency is low; secondly, owing to do not adopt the frock upset, can't guarantee that each position that needs to overhaul reaches the ship type position, has the risk of missing the inspection or the maintenance quality is not up to standard, and these problems are seriously restricting the maintenance work of railway locomotive pantograph chassis.

Disclosure of Invention

The invention aims to provide a multi-position rotatable pantograph underframe overhauling device, which utilizes three simple structures of support, adjustment and fixation consisting of section steel, a steel plate, a double-lug plate, a screw rod and a nut to combine the pantograph underframe overhauling device with the functions of left-right adjustment and rotation adjustment, so that the overhauling requirements of different positions and different angles of a pantograph underframe are realized on the device, the parts needing to be overhauled are ensured to reach ship positions, and the finishing quality and the overhauling efficiency are improved.

The purpose of the invention can be realized by adopting the following technical scheme: a multi-position rotatable pantograph underframe overhauling device comprises a support frame I, a support frame II, an adjusting screw, an adjusting nut, a double-lug plate, a fixing seat I, a fixing seat II and a positioning nut; the support frame I and the support frame II are of a door-shaped frame structure formed by welding and connecting two stand columns and a cross beam, and are symmetrically arranged at two ends of the pantograph bottom frame; a double-lug plate with an upward opening is arranged in the middle of the upper end face of the cross beam of the support frame I, and the double-lug plate is fixed on the cross beam through welding; two positioning nuts are arranged in the middle of the upper end face of the cross beam of the support frame II and fixed on the cross beam through welding; the adjusting screw rods on the left side are arranged in center holes of double lug plates on the upper portion of the support frame I, the adjusting screw rods on the left side are fixed at two ends of a lug plate on one side of each double lug plate through two adjusting nuts, and the adjusting screw rods on the right side are arranged in two positioning nuts on the upper portion of the support frame II; the fixing seat I is arranged on the inner side of the support frame I, the center of one side face of the fixing seat I is connected with the adjusting screw rod on the left side through welding, and the center of the top of the fixing seat I is provided with a fixing bolt; the fixing seat II is arranged on the inner side of the support frame II, the center of one side of the fixing seat II is connected with the adjusting screw rod on the right side through welding, and the center of the top of the fixing seat II is provided with a fixing bolt.

Two stands of support frame I be less than two stands of support frame II, the lug plate centre bore on the support frame I and the set nut centre bore on the support frame II are concentric, guarantee that the adjusting screw center of both sides is on a straight line, satisfy two adjusting nuts on the support frame I simultaneously and rotate freely on the adjusting screw.

Fixing base I and II design respectively for the trilateral draw-in groove structure of one side confined rectangle frame cover structure and channel-section steel shape according to the both ends shape of pantograph chassis, form by the steel sheet welding, the top center of fixing base I and fixing base II all sets up a screw hole, I confined one side of fixing base is connected with left side adjusting screw, the groove opening level of fixing base II sets up, confined one side is connected with right side adjusting screw.

The fixing bolt at the tops of the fixing base I and the fixing base II is fixedly connected with a handle through welding, the fixing bolt is screwed into a central threaded hole of the fixing base I and the fixing base II through the handle, and the pantograph underframe is fixed.

The thread space between the double-lug plate on the support frame I and the adjusting screw on the left side is L1, and L1 is determined according to the length of the adjusting screw, the actual field and the size of a workpiece, so that the requirements of adjusting different positions of the left and right space of the pantograph bottom frame are met.

The diameter of the central hole of the double-lug plate is larger than the diameter of the adjusting screw rod by one specification, and the positioning function is achieved.

The adjusting nut and the positioning nut on the support frame II are of the same type as the adjusting screw rod.

The invention has the following action principle: install support frame I and support frame II with fixing base II of this maintenance device earlier through adjusting screw, each part is installed the both ends of fixing base I respectively and is installed in the trilateral draw-in groove of fixing base II after targetting in place the rectangle frame cover of fixing base I and the operator, the effort is transmitted to fixing bolt through the handle, it is fixed firm with the pantograph chassis, the combined action through adjusting nut and set nut after the position is confirmed to accomplish, adjustment L1 to suitable size, the center that makes the pantograph chassis is in the device puts at the central point, make it reach the balance, rotation through adjusting screw during maintenance, can make the pantograph chassis remove about, and rotate at 360, satisfy the maintenance demand of pantograph chassis in different positions.

The invention has the beneficial effects that: this design simple structure, scientific and reasonable, installation, convenient to use can satisfy the pantograph chassis at the not same position, the maintenance demand of different angles, and simultaneously, the handle passes through welded mode with fixing bolt and is connected, avoids using tools such as spanner, and the radian of handle accords with anthropomorphic design principle, utilizes lever principle to transmit power to fixing bolt, has reduced maintainer's intensity of labour, improves work efficiency, and preparation low cost, has characteristics labour saving and time saving, laborsaving, easy and simple to handle, easily promotes.

Drawings

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

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a support frame I of the present invention;

FIG. 4 is a schematic view of a fixing base I of the present invention;

FIG. 5 is a schematic view of a fixing base II of the present invention;

the labels in the figure are: 1. support frame I, 2, crossbeam, 3, adjusting screw, 4, adjusting nut, 5, two ears board, 6, fixing base I, 7, fixing base II, 8, set nut, 9, support frame II, 10, fixing bolt, 11, handle, 12, pantograph chassis.

Detailed Description

The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.

As shown in fig. 1, 2, 3, 4 and 5, a multi-position rotatable pantograph underframe maintenance device comprises a support frame i 1, a support frame ii 9, an adjusting screw rod 3, an adjusting nut 4, a double-lug plate 5, a fixed seat i 6, a fixed seat ii 7 and a positioning nut 8; the support frame I1 and the support frame II 9 are both of a door-shaped frame structure formed by welding and connecting two upright posts and a cross beam 2, and the support frame I1 and the support frame II 9 are symmetrically arranged at two ends of a pantograph underframe 12; a double-lug plate 5 with an upward opening is arranged in the middle of the upper end face of a cross beam 2 of the support frame I1, the double-lug plate 5 is fixed on the cross beam 2 through welding, and a center hole of the double-lug plate 5 is larger than the diameter of the adjusting screw rod 3 by one specification to play a positioning role; two positioning nuts 8 are arranged in the middle of the upper end face of the cross beam 2 of the support frame II 9, the positioning nuts 8 are fixed on the cross beam 2 through welding, and the positioning nuts 8 and the adjusting nuts 4 are the same in model as the adjusting screw rods 3; two stands of support frame I1 are less than two stands of support frame II 9, and the centre bore of the two otic placodes 5 on the support frame I1 and the centre bore of the set nut 8 on the support frame II 9 are concentric, guarantee that the center of the adjusting screw 3 of both sides is on a straight line, satisfy two adjusting nut 4 on the support frame I1 simultaneously and rotate freely on adjusting screw 3.

The left adjusting screw 3 is arranged in a center hole of a double-lug plate 5 at the upper part of the support frame I1, and the two ends of a lug plate at one side of the double-lug plate 5 fix the adjusting screw 3 through two adjusting nuts 4; the right adjusting screw 3 is arranged in two positioning nuts 8 at the upper part of the support frame II 9; the thread space between the double lug plates 5 on the support frame I1 and the left adjusting screw rods 3 is L1, and L1 is determined according to the length of the adjusting screw rods 3, the actual site and the size of a workpiece, so that the requirements of adjusting different positions of the left and right spaces of the pantograph bottom frame 12 are met.

The fixing seat I6 and the fixing seat II 7 are respectively designed into a rectangular frame sleeve structure with one side closed and a channel steel-shaped three-side clamping groove structure according to the shapes of two ends of the pantograph underframe 12 and are formed by welding steel plates, the fixing seat I6 is arranged on the inner side of the support frame I1, and the center of a closed side face of the fixing seat I is connected with the left adjusting screw rod 3 through welding; fixing base II 7 sets up in the inboard of support frame II 9, and the groove opening level sets up, and confined one side center is connected through welding and adjusting screw 3 on right side, and the top center of fixing base I6 and fixing base II 7 all is provided with the screw hole of being connected with fixing bolt 10, and through the welded fastening in command 11 on fixing bolt 10, twist fixing bolt 10 into its central screw hole through handle 11, fixes pantograph chassis 12.

The specific operation process of the invention is as follows: firstly, according to the shapes of two ends of a pantograph underframe 12, a designed fixing seat I6 and a designed fixing seat II 7 are respectively installed in a double-lug plate 5 on a support frame I1 and a positioning nut 8 on a support frame II 9 through an adjusting screw rod 3, after all parts are installed in place, two ends of the pantograph underframe 12 are respectively installed in a rectangular frame sleeve of the fixing seat I6 and a three-side clamping groove of a fixing seat II 7, then two fixing bolts 10 are screwed through a handle 11 to firmly fix the pantograph underframe 12, adjusting nuts 4 on two sides of the double-lug plate 5 after position determination is completed, and adjusting L1 to be in a proper size through the combined action of the adjusting nut 4 and the positioning nut 8 to enable the center of the pantograph underframe 12 to be in the center position of the device so as to balance the device; when in maintenance, the pantograph base frame 12 can be moved left and right by rotating the adjusting screw rod 3 and can rotate at 360 degrees, and the maintenance requirements of the pantograph base frame 12 at different positions are met.

While there has been shown and described the fundamental principles of the invention, the principal features and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is capable of numerous changes and modifications without departing from the spirit and scope of the invention as hereinafter claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a rotatable pantograph chassis of multiposition overhauls device, includes support frame I (1), support frame II (9), adjusting screw (3), adjusting nut (4), ears board (5), fixing base I (6), fixing base II (7) and set nut (8), characterized by: the support frame I (1) and the support frame II (9) are of a door-shaped frame structure formed by welding and connecting two upright posts and a cross beam (2), and the support frame I (1) and the support frame II (9) are symmetrically arranged at two ends of a pantograph underframe (12); a double-lug plate (5) with an upward opening is arranged in the middle of the upper end face of a cross beam (2) of the support frame I (1), and the double-lug plate (5) is fixed on the cross beam (2) through welding; two positioning nuts (8) are arranged in the middle of the upper end face of the cross beam (2) of the support frame II (9), and the positioning nuts (8) are fixed on the cross beam (2) through welding; the adjusting screw rods (3) on the left side are arranged in center holes of double lug plates (5) on the upper portion of the support frame I (1), the adjusting screw rods (3) on the left side are fixed at two ends of the lug plates on one side of the double lug plates (5) through two adjusting nuts (4), and the adjusting screw rods (3) on the right side are arranged in two positioning nuts (8) on the upper portion of the support frame II (9); the fixing seat I (6) is arranged on the inner side of the support frame I (1), the center of one side face of the fixing seat I (6) is connected with the adjusting screw rod (3) on the left side through welding, and the center of the top of the fixing seat I (6) is provided with a fixing bolt (10); the fixing seat II (7) is arranged on the inner side of the support frame II (9), the center of one side of the fixing seat II is connected with the adjusting screw rod (9) on the right side through welding, and the center of the top of the fixing seat II (7) is provided with a fixing bolt (10).

2. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: two columns of the support frame I (1) are lower than two columns of the support frame II (9), a center hole of a double-lug plate (5) on the support frame I (1) is concentric with a center hole of a positioning nut (8) on the support frame II (9), the centers of the adjusting screws (3) on two sides are guaranteed to be on the same straight line, and meanwhile, two adjusting nuts (4) on the support frame I (1) can freely rotate on the adjusting screws (3).

3. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: fixing base I (6) and II (7) of fixing base design respectively for the trilateral draw-in groove structure of one side confined rectangle frame cover structure and channel-section steel shape according to the both ends shape of pantograph chassis 12, form by the steel sheet welding, the top center of fixing base I (6) and fixing base II (7) all sets up a screw hole, fixing base I (1) confined one side and left end side adjusting screw (3) are connected, the groove opening level of fixing base II (7) sets up, confined one side and side adjusting screw (3) are connected.

4. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: fixing a handle (11) on fixing bolt (10) at fixing base I (6) and fixing base II (7) top through the welding, fix in fixing bolt (10) the central screw hole of twist through handle (11), fix pantograph chassis (12).

5. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: the thread space between the double-lug plate (5) on the support frame I (1) and the left adjusting screw rod (3) is L1, the L1 is determined according to the length of the adjusting screw rod (3), an actual field and the size of a workpiece, and the adjustment of different positions of the left and right space of the pantograph bottom frame (12) is met.

6. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: the diameter of the central hole of the double-lug plate (5) is larger than the diameter of the adjusting screw rod (3) by one specification, and the positioning function is realized.

7. The multi-position rotatable pantograph underframe maintenance device of claim 1, wherein: the adjusting nut (4) and the positioning nut (8) on the support frame II (9) are of the same type as the adjusting screw rod (3).