CN216943094U

CN216943094U - Heavy-duty railway locomotive turntable

Info

Publication number: CN216943094U
Application number: CN202220566272.8U
Authority: CN
Inventors: 牛爱成; 崔长明; 李文明
Original assignee: China Railway Huatie Engineering Design Group Co Ltd
Current assignee: China Railway Huatie Engineering Design Group Co Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-12
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to a heavy-duty railway locomotive turntable, and belongs to the technical field of railway production and maintenance equipment. The problem of current railway locomotive carousel structural style manufacturing cost height is solved. The utility model is used for completing the reversing and reversing operation of the railway duplex heavy-duty locomotive. The main technical characteristics are as follows: the central supporting seat (22) is vertically welded on the central embedded steel plate assembly (31) and serves as the rotation center of the locomotive turntable; the thrust knuckle bearing (21) is sleeved on the central shaft sleeve (24) and transmits the weight of the locomotive transmitted by the bearing beam assembly (7) to the central supporting seat (22); two ends of the bearing beam assembly (7) are welded on the frame main beam (3) to form a whole; the hollow shaft (29) is inserted into the inner hole of the central shaft sleeve (24); the ground power line penetrates out from the outlet (32) of the cable threading steel pipe, enters the power supply device (6) of the rotation center and then enters the electric control system of the cab.

Description

Heavy-duty railway locomotive turntable

Technical Field

The utility model belongs to the technical field of railway locomotive vehicle maintenance equipment, and particularly relates to a heavy-load railway locomotive turntable.

Background

Railway transportation plays an important role in economic development of China. The railway locomotive is the power for drawing the train to run, because the railway line has curves, in the running process of the railway locomotive along the railway line, the wheel rims and the treads at the two sides of the bogie of the railway locomotive are unevenly worn, in order to reduce the potential safety hazard caused by excessive eccentric wear to the running of the railway locomotive, the railway locomotive needs to be periodically turned and reversed, and the wheel rims and the treads at the two sides are basically worn consistently.

The traditional equipment for turning around and reversing operation is 'bulb line' and 'triangle line'. The bulb line and the triangular line are curved rails laid on the ground, and the railway locomotive walks on the curved rails to complete turning (also called reversing) operation according to the operation regulation requirements. With the development of science and technology, a locomotive turntable appears, which is a device installed in a circular pit and capable of rotating around the center of the pit, and a track for a locomotive to run is installed on the upper surface of the locomotive turntable. The locomotive is driven to the turntable, and the turntable rotates 180 degrees to complete the locomotive turning (reversing) operation.

The locomotive turnplate has many advantages over "bulb lines" and "triangular lines": the equipment manufacturing cost is saved, the occupied area and the civil engineering construction cost are saved, and the operation process time is reduced. With the further development of economy and technology in China, railway transportation develops towards high speed and heavy load, more duplex heavy-load locomotives are needed, the duplex heavy-load locomotives have great weight, the car body is longer, and the turntable in the traditional structure form can cause the problems of high manufacturing cost, deep foundation pits, high investment cost and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and design a heavy-load railway locomotive turntable. The aim of the utility model is achieved by the following measures:

a heavy-duty railway locomotive turntable comprises a driving wheel assembly (1), a frame main beam (3), a driven wheel assembly (4), a frame cross beam (5), a rotation center power supply device (6), a bearing beam assembly (7) and a rotation center plate assembly (8), and is characterized in that a center bearing seat (22) of the rotation center plate assembly (8) is vertically welded and installed on a center embedded steel plate assembly (31) in the center position of a pit foundation (16) to serve as the rotation center of the locomotive turntable; the thrust knuckle bearing (21) is sleeved on a central shaft sleeve (24) of the central supporting seat (22), and the weight of the locomotive transmitted by the bearing beam assembly (7) is transmitted to the central supporting seat (22) and then to the pit foundation (16); a central positioning ring (12) of the carrier beam assembly (7) is sleeved on an outer ring of the thrust knuckle bearing (21) to perform central positioning on the carrier beam assembly (7) so as to ensure that a locomotive rotating disc rotates around the center of a pit foundation (16); two ends of the bearing beam assembly (7) are welded on the frame main beam (3) to form a whole; a hollow shaft (29) of the rotary center power supply device (6) is inserted into an inner hole of a center shaft sleeve (24) of the center supporting seat (22); the bearing plate (27), the upper positioning plate (28), the hollow shaft (29) and the lower positioning plate (30) are welded and processed into a whole, the bearing plate (27) bears the weight of the power supply device (6) of the rotation center and is supported at the upper end of the central shaft sleeve (24); an upper positioning plate (28) and a lower positioning plate (30) are in clearance fit with an inner hole of a central shaft sleeve (24) of a central supporting seat (22) to ensure that a rotary center power supply device (6) is vertically upward; the upper positioning plate (28) is sleeved at the upper end of the central shaft sleeve (24), and the convex part of the upper positioning plate is embedded into the upper end notch of the central shaft sleeve (24) to prevent the hollow shaft (29) from freely rotating; a lifting eye screw 2(15) is arranged on the upper part of the revolving center power supply device (6), a lifting eye screw 1(14) is arranged on a frame main beam (3) corresponding to the lifting eye screw 2(15) and is tied up and connected by a nylon rope (43), and when the locomotive turntable revolves, the revolving body of the revolving center power supply device (6) is pulled to rotate along with the locomotive turntable; a ground power cord penetrates out from a cable threading steel tube outlet (32) on a pit foundation (16), enters the rotation center power supply device (6) through a wire inlet hole below the rotation center disc assembly (8) and a hollow shaft (29) of the rotation center power supply device (6), and then leads out a cable (18) of the rotation center power supply device from a rotation body of the rotation center power supply device (6) to enter an electric control system of a cab.

The heavy-duty railway locomotive turntable is characterized in that a circle of circular track is additionally arranged in a pit foundation of the existing locomotive turntable, and the number of the circular track is two: an inner race track (36) and an outer race track (34); the side surface of the main beam (3) of the turntable frame is provided with a driving wheel assembly (1) and a driven wheel assembly (4), the driving wheel assembly (1) is arranged on an outer ring track (34) close to the end part of the main beam (3) of the turntable frame and provides larger rotary driving moment and the weight of a transfer locomotive for the turntable, and the driven wheel assembly (4) is arranged on an inner ring track (36) and mainly transfers the weight of the locomotive.

The heavy-duty railway locomotive turntable is characterized in that a rotary center plate assembly (8) positioned at the center of a pit foundation (16) consists of a thrust knuckle bearing (21), a center supporting seat (22) and a dustproof sealing ring (23), wherein the dustproof sealing ring (23) is arranged between a center positioning ring (12) and the thrust knuckle bearing (21) to prevent dust from entering the thrust knuckle bearing (21); the upper surface of the thrust joint bearing (21) supports the bearing beam assembly (7), and the lower surface of the thrust joint bearing is supported on the central supporting seat (22), so that the weight of the locomotive can be transferred, the rotation center of the turntable of the locomotive can be fixed, and the bearing beam assembly (7) and the frame main beams (3) on the two sides are allowed to have larger angle errors, thereby facilitating the field construction and installation.

The heavy-duty railway locomotive turntable is characterized in that a center supporting seat (22) is formed by welding and processing a center shaft sleeve (24), a supporting plate (25) and a rib plate (26), and is welded on a center embedded steel plate assembly (31) to control the heavy-duty railway locomotive turntable to rotate around the central axis of a pit foundation (16), an inner hole of the center shaft sleeve (24) is used for inserting a rotation center power supply device (6), the lower part of the center shaft sleeve is provided with a wire inlet hole for leading a power wire into the heavy-duty railway locomotive turntable, the upper part of the center shaft sleeve is provided with a notch, and the hollow shaft (29) of the rotation center power supply device (6) is circumferentially positioned.

The heavy-duty railway locomotive turntable is characterized in that a center embedded steel plate assembly (31) is formed by welding an embedded steel plate (39) and an anchor bar (40) and is embedded in the center of a pit foundation (16); the center part of the embedded steel plate (39) is provided with a concrete pouring hole (41) for facilitating concrete pouring, and the central embedded steel plate assembly (31) is firmly fixed at the center part of the pit foundation (16).

Compared with the prior art, the utility model has the following beneficial effects:

1. by increasing the number of wheels on the side surface of the frame main beam (3) and the assembly (8) of the rotary central disc, the bearing pivot of the frame main beam (3) is increased, and the bearing capacity of the frame main beam (3) is effectively improved; the section height of the frame main beam (3) is reduced, so that the steel consumption is reduced, and the manufacturing cost of the locomotive turntable is saved.

2. The section height of the frame main beam (3) is reduced, the depth of the pit foundation (16) is correspondingly reduced, the civil engineering foundation cost is saved, and meanwhile, the maintenance, the use and the safety production of the locomotive turntable are facilitated due to the shallow pit depth.

Drawings

FIG. 1 is a front view of a locomotive turntable;

FIG. 2 is a top view of a locomotive turntable;

FIG. 3-left side view of the locomotive turntable;

FIG. 4-front view of the load beam assembly;

FIG. 5-left side view of the load beam assembly;

FIG. 6-section A-A of FIG. 1;

FIG. 7-schematic view of the mounting of the rotating center plate;

FIG. 8-schematic view of the central bearing block;

FIG. 9-schematic view of a slewing center power supply;

FIG. 10 is a schematic cross-sectional view of a turntable pit foundation of a locomotive;

FIG. 11 is a front view of the assembly of the central pre-buried steel plate;

FIG. 12 is a top view of the assembly of the central pre-buried steel plate;

FIG. 13 is a front view of the upper positioning plate;

FIG. 14 is a top view of the upper positioning plate;

FIG. 15-enlarged view of part B of FIG. 2

Description of the drawings

1. Driving wheel assembly, 2, walking platform rail assembly, 3, frame main beam, 4, driven wheel assembly, 5, frame cross beam, 6, rotation center power supply device, 7, carrier beam assembly, 8, rotation center disc assembly, 9, cab, 10, cab mounting seat, 11, rib plate, 12, center positioning ring, 13, carrier beam, 14,

lifting ring screws

1, 15,

lifting ring screws

2, 16, pit foundation, 17, rotation center power supply device incoming cable, 18, rotation center power supply device outgoing cable, 19, traction steel wire rope, 20, rain cover, 21, thrust joint bearing, 22, center supporting seat, 23, dustproof sealing ring, 24, center shaft sleeve, 25, supporting plate, 26, rib plate, 27, bearing plate, 28, upper positioning plate, 29, hollow shaft, 30, lower positioning plate, 31, center embedded steel plate assembly, 32, cable wire threading steel pipe outlet, 33. the cable line threading steel pipe comprises a cable line threading steel pipe inlet 34, an outer ring track 35, a cable line threading steel pipe 36, an inner ring track 37, a water collecting well 38, a water discharging pipe 39, an embedded steel plate 40, an anchor bar 41, a concrete pouring hole 42, a railway locomotive 43 and a nylon rope.

Detailed Description

The following describes embodiments with reference to the drawings.

1) The working process of the turntable is as follows: during the locomotive shunting and steering operation, the turntable driver and the locomotive driver need to coordinate, cooperate, exchange and interact. After confirming that the track on the turntable table is aligned with the track of the ground locomotive, the driver of the turntable sends a signal to the locomotive driver to allow the locomotive to drive on the turntable. After the locomotive driver drives the locomotive to the middle position of the turntable, a signal for allowing the turntable to rotate is sent to the turntable driver. The driver of the rotary table starts the rotary table, and sends a signal to the driver of the locomotive after rotating 180 degrees, so as to allow the locomotive to drive off the rotary table. The locomotive driver turns off the rotary table to finish the turning and reversing operation of the railway locomotive.

2) The transfer route of the weight of the locomotive on the turntable is as follows: the weight of the locomotive, a frame main beam (3), a driving wheel assembly (1), a driven wheel assembly (4) and a bearing beam assembly (7), and a pit foundation (16).

Wherein:

active wheel assembly (1) -outer ring track (34) -pit foundation (16).

Driven wheel assembly (4) -inner circle track (36) -pit foundation (16).

The method comprises the following steps that a load-bearing beam assembly (7) -a thrust knuckle bearing (21) -a center supporting seat (22) -a center embedded steel plate assembly (31) -a pit foundation (16).

A plurality of load bearing points are added to the main beam (3) of the frame, and the bearing capacity of the main beam (3) of the frame is effectively improved. The section parameters of the frame main beam (3) are determined through program calculation output data, and within the error range specified by the construction specifications of the outer ring track (34) and the inner ring track (36), the driving wheel assembly (1) can be ensured to be in contact with the outer ring track (34), and meanwhile, the driven wheel assembly (4) can be ensured to be in contact with the inner ring track (36).

3) The moving route of the power supply cable: the locomotive turntable power distribution cabinet outside a pit foundation (16), an inlet (33) of a cable threading steel pipe is downwards penetrated, a cable threading steel pipe (35), an outlet (32) of the cable threading steel pipe, a central shaft sleeve (24) wire inlet hole on a central supporting seat (22), an inner hole of a hollow shaft (29) of a rotary center power supply device (6), and the cable enters the rotary center power supply device (6), a cable outlet (18) of the rotary center power supply device and an electric control system in a cab (9).

Rotation center power supply device (6): the three-phase five-wire power cable (fixed) penetrating through the cable threading steel pipe (35) is converted into a three-phase five-wire power cable (rotatable) which can rotate along with the turntable through an electric brush device inside the three-phase five-wire power cable, so that electric power is provided for a driving motor and a control electric appliance of the turntable.

Claims

1. A heavy-duty railway locomotive turntable comprises a driving wheel assembly (1), a frame main beam (3), a driven wheel assembly (4), a frame cross beam (5), a rotation center power supply device (6), a bearing beam assembly (7) and a rotation center plate assembly (8), and is characterized in that a center bearing seat (22) of the rotation center plate assembly (8) is vertically welded and installed on a center embedded steel plate assembly (31) in the center position of a pit foundation (16) to serve as the rotation center of the locomotive turntable; the thrust knuckle bearing (21) is sleeved on a central shaft sleeve (24) of the central supporting seat (22), and the weight of the locomotive transmitted by the bearing beam assembly (7) is transmitted to the central supporting seat (22) and then to the pit foundation (16); a central positioning ring (12) of the carrier beam assembly (7) is sleeved on an outer ring of the thrust knuckle bearing (21) to perform central positioning on the carrier beam assembly (7) so as to ensure that a locomotive rotating disc rotates around the center of a pit foundation (16); two ends of the bearing beam assembly (7) are welded on the frame main beam (3) to form a whole; a hollow shaft (29) of the rotary center power supply device (6) is inserted into an inner hole of a center shaft sleeve (24) of the center supporting seat (22); the bearing plate (27), the upper positioning plate (28), the hollow shaft (29) and the lower positioning plate (30) are welded and processed into a whole, the bearing plate (27) bears the weight of the power supply device (6) of the rotation center and is supported at the upper end of the central shaft sleeve (24); an upper positioning plate (28) and a lower positioning plate (30) are in clearance fit with an inner hole of a central shaft sleeve (24) of a central supporting seat (22) to ensure that a rotary center power supply device (6) is vertically upward; the upper positioning plate (28) is sleeved at the upper end of the central shaft sleeve (24), and the convex part of the upper positioning plate is embedded into the upper end notch of the central shaft sleeve (24) to prevent the hollow shaft (29) from freely rotating; a lifting eye screw 2(15) is arranged on the upper part of the revolving center power supply device (6), a lifting eye screw 1(14) is arranged on a frame main beam (3) corresponding to the lifting eye screw 2(15) and is tied up and connected by a nylon rope (43), and when the locomotive turntable revolves, the revolving body of the revolving center power supply device (6) is pulled to rotate along with the locomotive turntable; a ground power cord penetrates out from a cable threading steel tube outlet (32) on a pit foundation (16), enters the rotation center power supply device (6) through a wire inlet hole below the rotation center disc assembly (8) and a hollow shaft (29) of the rotation center power supply device (6), and then leads out a cable (18) of the rotation center power supply device from a rotation body of the rotation center power supply device (6) to enter an electric control system of a cab.

2. A heavy duty railway locomotive turntable according to claim 1, wherein a circle of circular track is added to the pit foundation of an existing locomotive turntable for a total of two circles: an inner race track (36) and an outer race track (34); the side surface of the main beam (3) of the turntable frame is provided with a driving wheel assembly (1) and a driven wheel assembly (4), the driving wheel assembly (1) is arranged on an outer ring track (34) close to the end part of the main beam (3) of the turntable frame and provides larger rotary driving moment and the weight of a transfer locomotive for the turntable, and the driven wheel assembly (4) is arranged on an inner ring track (36) and mainly transfers the weight of the locomotive.

3. A heavy duty railway locomotive turntable according to claim 1, characterized in that the rotating center disk assembly (8) located at the center of the pit foundation (16) is composed of a thrust knuckle bearing (21), a center bearing seat (22) and a dust seal (23), wherein the dust seal (23) is installed between the center positioning ring (12) and the thrust knuckle bearing (21) to prevent dust from entering the thrust knuckle bearing (21); the upper surface of the thrust joint bearing (21) supports the bearing beam assembly (7), and the lower surface of the thrust joint bearing is supported on the central supporting seat (22), so that the weight of the locomotive can be transferred, the rotation center of the turntable of the locomotive can be fixed, and the bearing beam assembly (7) and the frame main beams (3) on the two sides are allowed to have larger angle errors, thereby facilitating the field construction and installation.

4. The heavy-duty railway locomotive turntable according to claim 1, wherein the center bearing seat (22) is formed by welding and processing a center shaft sleeve (24), a supporting plate (25) and a rib plate (26), and is welded on a center embedded steel plate assembly (31) to control the heavy-duty railway locomotive turntable to rotate around the central axis of a pit foundation (16), an inner hole of the center shaft sleeve (24) is used for inserting a rotation center power supply device (6), the lower part of the center shaft sleeve is provided with a wire inlet hole, a power wire is led into the heavy-duty railway locomotive turntable, the upper part of the center shaft sleeve is provided with a notch, and the hollow shaft (29) of the rotation center power supply device (6) is circumferentially positioned.

5. The heavy-duty railway locomotive turntable according to claim 1, wherein the central embedded steel plate assembly (31) is formed by welding an embedded steel plate (39) and an anchor bar (40) and is embedded in the center of the pit foundation (16); the center part of the embedded steel plate (39) is provided with a concrete pouring hole (41) for facilitating concrete pouring, and the central embedded steel plate assembly (31) is firmly fixed at the center part of the pit foundation (16).