CN110642182B - Dynamic and dragging dual-purpose landing machine and operation method - Google Patents

Dynamic and dragging dual-purpose landing machine and operation method Download PDF

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Publication number
CN110642182B
CN110642182B CN201910889379.9A CN201910889379A CN110642182B CN 110642182 B CN110642182 B CN 110642182B CN 201910889379 A CN201910889379 A CN 201910889379A CN 110642182 B CN110642182 B CN 110642182B
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China
Prior art keywords
wheel
wheel set
gap bridge
movable gap
machine
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CN201910889379.9A
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CN110642182A (en
Inventor
田向阳
郑青松
张�浩
殷勤
李加祺
李经伟
林飞
王林
蒲思培
周玲玲
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Priority to CN201910889379.9A priority Critical patent/CN110642182B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/46—Combinations of several jacks with means for interrelating lifting or lowering movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F2700/00—Lifting apparatus
    • B66F2700/12—Lifting platforms for vehicles or motorcycles or similar lifting apparatus
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/56—Reuse, recycling or recovery technologies of vehicles

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The invention discloses a movable and towed dual-purpose landing machine which is used for replacing a power wheel pair of a motor train unit, replacing a main transformer of the motor vehicle and replacing a trailer wheel pair of the motor vehicle, and comprises two single movable gap bridges, a main machine with lifting and walking functions, two auxiliary supporting devices and a supporting flat plate; the wheel dropping machine has the functions of lifting and transversely moving the wheel set (motor) out of the vehicle body, so that the replacement efficiency of the wheel set is greatly improved; the landing wheel machine is suitable for various bogies of 160 km motor train units, and can be well matched with motor cars or trailers.

Description

Dynamic and dragging dual-purpose landing machine and operation method
Technical Field
The invention belongs to the field of replacement equipment of motor train unit wheel sets and main transformers, and particularly relates to a power-driven and towing dual-purpose wheel dropping machine and a method for replacement operation of motor train unit power wheel sets, replacement operation of a power vehicle main transformer and replacement operation of a power vehicle trailer wheel set.
Background
When the axle box bearing, the holding bearing and the motor bearing are in failure, or other failures of the driving motor, damage of the wheel set and other temporary repair parts occur, the wheel dropping machine is an indispensable basic device. The wheel set of the railway train can be replaced under the condition that the wheel set is not pushed out of the bogie.
The existing wheel dropping machine is designed based on the standard TB/T839-2006 locomotive electric wheel dropping machine, and the application range is aimed at locomotives, coaches and the like of common passenger trains, and can not meet the wheel changing requirements of different types of motor cars and trailers of motor train units. The maximum applicable axle weight of the existing falling turbine of the passenger train is 15 tons, the applicable wheel diameter is 900mm, and the requirement of 1250mm wheel diameter and 25 tons of axle weight of the power vehicle cannot be met. If the original falling turbine of the passenger yard is considered to be modified, the mechanical part cannot be utilized because the depth and the length of the pit do not meet the requirements, so that the modification is not feasible.
Disclosure of Invention
Aiming at least one of the defects or the improvement demands of the prior art, the invention provides the dual-purpose wheel dropping machine for the motor train unit and the trailer of different types, which greatly improves the replacement efficiency of wheel pairs, is suitable for various bogies of 160 km motor train units, and can be well matched with motor trains or trailers.
In order to achieve the above object, according to one aspect of the present invention, there is provided a dual-purpose drop turbine for a motor train unit power wheel set replacement operation, a motor train main transformer replacement operation, and a motor train trailer wheel set replacement operation, the dual-purpose drop turbine for a motor train unit comprising two single movable gap bridges, a main machine having lifting and traveling functions, two auxiliary supporting devices, and a supporting plate;
the movable gap bridge and the main machine are of split structures, the front end and the rear end of the movable gap bridge are releasably connected with fixed maintenance rails on two sides, and the length of the movable gap bridge is structured such that the upper parts of the movable gap bridge and the main machine are only used for supporting a single wheel set during the replacement operation of the power vehicle and the trailer wheel set, and the upper parts of the movable gap bridge and the main machine are used for supporting the supporting flat plates matched with the movable gap bridge and the main machine during the replacement operation of the power vehicle and the trailer wheel set;
the bottom of the auxiliary supporting device is positioned on the overhauling track, the upper part of the auxiliary supporting device is used for supporting the outer end part of the framework of the wheel set to be dropped during the replacement operation of the power wheel set, and the middle part of the framework on the inner side of the wheel set to be dropped during the replacement operation of the trailer wheel set;
the main machine is positioned in the wheel drop pit, the upper part of the main machine is used for bearing and lifting the movable bridge and the wheel pair or the supporting flat plate-power vehicle main transformer combination detached on the movable bridge, and the lower part of the main machine transversely walks in the wheel drop pit and is used for moving a bearing to a replacement station at the side edge of the overhauling track.
Preferably, the main machine comprises a main frame, and a lifting device and a travelling part which are arranged on the main frame.
Preferably, the main frame comprises a walking frame at the bottom and a lifting frame at the upper part;
the lifting device is arranged between the lifting frame and the walking frame, and the walking part is arranged on the walking frame.
Preferably, the lifting device comprises a worm, a worm gear box and a lifting transmission system which are vertically arranged;
the lower end of the worm is fixed on the walking frame, the upper end of the worm is connected with the lifting frame through the worm gear box, and the lifting transmission system is arranged below the lifting frame and is used for lifting power of the worm gear box system.
Preferably, the walking part comprises a driving wheel set, a driven wheel set and a sliding wire mechanism;
the driving wheel set and the driven wheel set walk on the bottom surface of the wheel drop pit or a track on the bottom surface; the sliding wire mechanism is used for driving the walking frame to transversely move for a fixed distance.
Preferably, the auxiliary supporting device is a jack.
In order to achieve the above object, according to another aspect of the present invention, there is also provided a method for replacing a power wheel set of a motor train unit by using a dual-purpose drop turbine for power and drag as described above, wherein the power wheel set is a wheel set with a traction motor and a gear box, and the method comprises the following steps:
when the single preset wheel pair of the power vehicle runs on the movable gap bridge of the wheel dropping machine, the vehicle stops;
supporting the outer end part of the framework of the wheel set to be dropped by using an auxiliary supporting device, and disassembling the power wheel set;
the main machine moves to the lower part of the movable gap bridge, the movable gap bridge is supported in advance, and after the power wheel pair is disassembled, the movable gap bridge is loosened to be connected with the fixed overhaul rails at the two ends;
the upper part of the host machine is lowered, the disassembled power wheel pair falls into the pit bottom and transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the host machine is lifted, the disassembled power wheel pair is lifted to the side of the vehicle, and the wheel falling of the power wheel pair is finished.
Preferably, after the vehicle stops, the anti-skid iron shoes are put on the front and back of the wheel set to be dropped, so that the wheel set is prevented from slipping.
In order to achieve the above object, according to another aspect of the present invention, there is also provided a method for replacing a main transformer of a motor train unit by a dual-purpose drop turbine for motor and trailer as described above, comprising the steps of:
when the power vehicle runs to a preset position through the movable bridge crossing, the main transformer faces the movable bridge crossing below, and the vehicle stops;
the host machine moves to the lower part of the movable bridge to support the movable bridge, the movable bridge is loosened to be connected with the fixed maintenance tracks at the two ends, the upper part of the host machine descends, the movable bridge is firstly submerged, then transversely moves to the side of the vehicle, and a support flat plate matched with the movable bridge is placed on the movable bridge through the overhead travelling crane;
the main machine moves transversely to return, the supporting flat plate is moved to the lower part of the main transformer, the upper part of the main machine drives the movable bridge and the supporting flat plate to ascend, so that the upper plane of the supporting flat plate is flush with the lower plane of the main transformer, and the main transformer is disassembled;
after the main transformer is disassembled, the upper part of the main machine is lowered, the disassembled main transformer falls into the pit bottom, and the main transformer transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the main machine is lifted, the disassembled main transformer is lifted to the side of the vehicle, and the main transformer of the power vehicle is disassembled and transferred.
In order to achieve the above object, according to another aspect of the present invention, there is also provided a method for replacing a pair of wheels of a motor train unit with a dual-purpose drop turbine for motor train unit as described above, wherein the pair of wheels of the trailer is a pair with a shaft brake disc, and the method comprises the following steps:
when the trailer runs on the movable bridge of the landing wheel machine by a single preset wheel pair, the vehicle stops;
supporting the middle part of the framework at the inner side of the wheel set to be dropped by using an auxiliary supporting device, and disassembling the wheel set of the trailer;
the main machine moves to the lower part of the movable bridge, the movable bridge is supported in advance, and after the trailer wheel set is disassembled, the movable bridge is loosened to be connected with the fixed overhaul rails at the two ends;
the upper part of the host machine is lowered, the disassembled trailer wheel set falls into the pit bottom and transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the host machine is lifted, the disassembled trailer wheel set is lifted to the side of the vehicle, and the wheel setting of the trailer wheel set is finished.
Preferably, after the vehicle stops, the anti-skid iron shoes are put on the front and back of the wheel set to be dropped, so that the wheel set is prevented from slipping.
The above-described preferred technical features may be combined with each other as long as they do not collide with each other.
In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:
(1) The main body structure of the movable and towed dual-purpose landing wheel machine comprises two single movable gap bridges, a main machine with lifting and walking functions, two auxiliary supporting devices and a supporting flat plate; has the advantages of mature technology, simple operation and maintenance reduction.
(2) The bridge of the landing machine is made into two single movable rails by combining the specific conditions of the power vehicle, the trailer, the steering frame of the control vehicle and the wheel set, the lifting platform of the landing machine host machine realizes the connection suitability with the depth of the inspection trench by utilizing the lead screw, and the two rails form a smooth through trench, thereby realizing the operation space of the traction rod dismounting equipment. Two movable auxiliary supports of 30 tons are provided, the auxiliary supports are supported at the end part of a framework which is close to a dropped wheel pair when a power vehicle drops, the auxiliary supports are supported at the middle part of the framework when a trailer and a control vehicle drop, and a fine adjustment mechanism is designed at the top of the auxiliary supports to ensure the balance of a bogie and the load of a vehicle body.
(3) The wheel dropping machine has the functions of lifting and transversely moving the wheel pair (motor) out of the car body, and greatly improves the replacement efficiency of the wheel pair.
(4) The landing wheel machine is suitable for various bogies of 160 km motor train units, and can be well matched with motor cars or trailers.
(5) The wheel dropping machine is on-line equipment of a passenger train and allows the speed limit of the motor train unit to pass through the equipment. Any auxiliary disassembly and assembly of the motor train unit are not needed before wheel falling operation.
(6) The bridge of the landing machine and the main machine are of split structures, when the motor train unit passes through, the bridge is independently carried, and the main machine part is not stressed.
(7) The screw rod and the nut adopt a self-lubricating mode; the running bearing adopts an oilless bearing, so that the equipment is maintenance-free.
(8) The bridge adopts two separated movable rails to provide a traction rod disassembly and assembly operation space.
(9) The wheel dropping machine has rich functions, and can replace a main transformer besides replacing wheel sets.
Drawings
FIG. 1 is a side view of a dual-purpose wheel barrow of an embodiment of the invention in the longitudinal direction of the track;
FIG. 2 is a side view of a dual-purpose wheel barrow of an embodiment of the invention in a transverse direction of the track;
FIG. 3 is a schematic illustration of a dual-purpose power-driven wheel set of an embodiment of the present invention for a power wheel set replacement operation;
FIG. 4 is a schematic illustration of a dual-purpose wheel set for a truck wheel set change operation according to an embodiment of the present invention.
The units of the dimension marks in the figures are mm.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other. The present invention will be described in further detail with reference to the following embodiments.
As a preferred embodiment of the invention, as shown in fig. 1-4, the invention provides a dual-purpose wheel-dropping machine for dynamic towing, which is used for the replacement operation of a power wheel pair of a motor train unit, the replacement operation of a main transformer of the motor vehicle and the replacement operation of a trailer wheel pair of the motor vehicle, and comprises two single movable gap bridges 6, a main machine with lifting and walking functions, two auxiliary supporting devices 9 and a supporting flat plate; has the advantages of mature technology, simple operation and maintenance reduction.
The movable gap bridge 6 and the main machine are of a split structure, the front end and the rear end of the movable gap bridge are releasably connected with fixed maintenance rails on two sides, and the length of the movable gap bridge is structured such that the upper parts of the movable gap bridge 6 and the main machine are only used for supporting a single wheel set during the replacement operation of the power vehicle and the trailer wheel set, and the upper parts of the movable gap bridge are used for supporting the supporting flat plates matched with the movable gap bridge during the replacement operation of the main transformer of the power vehicle.
The bottom of the auxiliary supporting device 9 is positioned on the maintenance track, the upper part of the auxiliary supporting device is used for supporting the outer end part of the framework of the wheel set to be dropped during the replacement operation of the power wheel set, and the middle part of the framework on the inner side of the wheel set to be dropped during the replacement operation of the trailer wheel set.
The main machine is positioned in the wheel drop pit 10, the upper part of the main machine is used for bearing and lifting the movable bridge 6 and the wheel pair or the supporting flat plate-power vehicle main transformer combination detached on the movable bridge, and the lower part of the main machine transversely walks in the wheel drop pit 10 and is used for moving the bearing to a replacement station at the side of the maintenance track.
The host machine comprises a main frame, a lifting device and a traveling part, wherein the lifting device and the traveling part are arranged on the main frame. The main frame comprises a walking frame 1 at the bottom and a lifting frame 2 at the upper part; the lifting device is arranged between the lifting frame 2 and the walking frame 1, and the walking part is arranged on the walking frame 1. The lifting device comprises a worm, a worm gear and worm transmission case 3 and a lifting transmission system 7 which are vertically arranged; the lower end of the worm is fixed on the walking frame 1, the upper end of the worm is connected with the lifting frame 2 through the worm gear box 3, and the lifting transmission system 7 is arranged below the lifting frame 2 and is used for lifting power of the worm gear box 3. The walking part comprises a driving wheel set 4, a driven wheel set 5 and a sliding wire mechanism 8; the driving wheel set 4 and the driven wheel set 5 walk on the bottom surface of the wheel drop pit 10 or a track on the bottom surface; the sliding wire mechanism 8 is used for driving the walking frame 1 to transversely move for a fixed distance.
Preferably, the auxiliary supporting device 9 is a 15-ton jack, and the total of two movable auxiliary supporting devices is 30 tons.
As shown in fig. 3, when the motor train unit power train is driven onto the wheel dropping machine to prepare for wheel changing operation, the working flow of the wheel dropping machine is as follows: the wheels of the power vehicle are wheel sets with traction motors and gearboxes, and the method comprises the following steps:
when the power vehicle runs on the movable gap bridge 6 of the falling wheel machine by a single preset wheel pair, the vehicle stops; after the vehicle stops, putting anti-skid iron shoes in front of and behind the wheel set to be dropped, so as to prevent the wheel set from slipping away; the outer end part of the framework of the wheel set to be dropped is supported by an auxiliary supporting device 9, and the power wheel set is disassembled; the host machine walks to the lower part of the movable bridge 6 to support the movable bridge in advance, and after the power wheel pair is disassembled, the movable bridge 6 is loosened to be connected with the fixed overhaul rails at the two ends; the lifting transmission system 7 of the host starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly descend, the disassembled power wheel pairs fall into the pit bottom, the sliding wire mechanism 8 drives the walking frame 1 to transversely move for a fixed distance, and the lower part of the walking frame 1 rolls through the driving wheel set 4 and the driven wheel set 5 to realize transverse movement; after the transverse movement is finished, the lifting transmission system 7 starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly lift, the disassembled power wheel pair is lifted to the side of the vehicle, and the wheel falling of the power wheel pair is finished.
When the motor car drives on the turbine to prepare for main transformer replacement operation, the turbine working flow is as follows:
when the power vehicle runs to a preset position through the movable gap bridge 6, the main transformer faces the movable gap bridge 6 below, and the vehicle stops; the host machine walks to the lower part of the movable bridge 6 to support the movable bridge 6, the movable bridge 6 is loosened to be connected with the fixed maintenance tracks at the two ends, the lifting frame 2 of the host machine descends, the movable bridge 6 is firstly sunken, then the walking frame 1 transversely moves to the side of the vehicle, and a support flat plate matched with the movable bridge 6 is placed on the movable bridge 6 through the overhead travelling crane; the walking frame 1 moves transversely to return, the supporting flat plate is moved to the lower part of the main transformer, the lifting frame 2 of the main machine drives the movable gap bridge 6 and the supporting flat plate to ascend, so that the upper plane of the supporting flat plate is flush with the lower plane of the main transformer, and the main transformer is disassembled; after the main transformer is disassembled, a lifting transmission system 7 of the main machine starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly descend, the disassembled main transformer falls into the pit bottom, the sliding wire mechanism 8 drives the walking frame 1 to transversely move for a fixed distance, and the lower part of the walking frame 1 rolls through the driving wheel set 4 and the driven wheel set 5 to realize transverse movement; after the transverse movement is finished, the lifting transmission system 7 starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly lift, the disassembled main transformer is lifted to the side of the vehicle, and the disassembly and the transfer of the main transformer of the power vehicle are completed.
As shown in fig. 4, when the trailer is driven onto the landing gear in preparation for a wheelchange operation, the landing gear workflow is: the trailer wheels are wheel sets with axle brake discs, wherein the method comprises the following steps:
when the trailer runs on the movable gap bridge 6 of the landing wheel machine by a single preset wheel pair, the vehicle stops; after the vehicle stops, putting anti-skid iron shoes in front of and behind the wheel set to be dropped, so as to prevent the wheel set from slipping away; the middle part of the framework on the inner side of the wheel set to be dropped is supported by an auxiliary supporting device 9, and the wheel set of the trailer is disassembled; the host machine walks to the lower part of the movable bridge 6 to support the movable bridge in advance, and after the trailer wheel set is disassembled, the movable bridge 6 is loosened to be connected with the fixed overhaul rails at the two ends; the lifting transmission system 7 of the host starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly descend, the disassembled trailer wheel set falls into the pit bottom, the sliding wire mechanism 8 drives the walking frame 1 to transversely move for a fixed distance, and the lower part of the walking frame 1 rolls through the driving wheel set 4 and the driven wheel set 5 to realize transverse movement; after the transverse movement is finished, the lifting transmission system 7 starts to work, the worm gear transmission box 3 drives the lifting frame 2 to slowly lift, the disassembled trailer wheel set is lifted to the side of the vehicle, and the wheel set falling of the trailer wheel set is finished.
In general, the invention has the following beneficial effects:
(1) The main body structure of the movable and towed dual-purpose landing wheel machine comprises two single movable gap bridges, a main machine with lifting and walking functions, two auxiliary supporting devices and a supporting flat plate; has the advantages of mature technology, simple operation and maintenance reduction.
(2) The bridge of the landing machine is made into two single movable rails by combining the specific conditions of the power vehicle, the trailer, the steering frame of the control vehicle and the wheel set, the lifting platform of the landing machine host machine realizes the connection suitability with the depth of the inspection trench by utilizing the lead screw, and the two rails form a smooth through trench, thereby realizing the operation space of the traction rod dismounting equipment. Two movable auxiliary supports of 30 tons are provided, the auxiliary supports are supported at the end part of a framework which is close to a dropped wheel pair when a power vehicle drops, the auxiliary supports are supported at the middle part of the framework when a trailer and a control vehicle drop, and a fine adjustment mechanism is designed at the top of the auxiliary supports to ensure the balance of a bogie and the load of a vehicle body.
(3) The wheel dropping machine has the functions of lifting and transversely moving the wheel pair (motor) out of the car body, and greatly improves the replacement efficiency of the wheel pair.
(4) The landing wheel machine is suitable for various bogies of 160 km motor train units, and can be well matched with motor cars or trailers.
(5) The wheel dropping machine is on-line equipment of a passenger train and allows the speed limit of the motor train unit to pass through the equipment. Any auxiliary disassembly and assembly of the motor train unit are not needed before wheel falling operation.
(6) The bridge of the landing machine and the main machine are of split structures, when the motor train unit passes through, the bridge is independently carried, and the main machine part is not stressed.
(7) The screw rod and the nut adopt a self-lubricating mode; the running bearing adopts an oilless bearing, so that the equipment is maintenance-free.
(8) The bridge adopts two separated movable rails to provide a traction rod disassembly and assembly operation space.
(9) The wheel dropping machine has rich functions, and can replace a main transformer besides replacing wheel sets.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (6)

1. The utility model provides a move and drag dual-purpose turbine that falls which characterized in that: the power wheel pair replacement device is used for replacing a power wheel pair of a motor train unit, a main transformer of the motor vehicle and a trailer wheel pair of the motor vehicle, and the power-trailer two-purpose wheel dropping machine comprises two single movable gap bridges (6), a main machine with lifting and walking functions, two auxiliary supporting devices (9) and a supporting flat plate;
the movable gap bridge (6) and the main machine are of a split structure, the front end and the rear end of the movable gap bridge are releasably connected with fixed maintenance tracks on two sides, the length of the movable gap bridge is structured that the upper part of the movable gap bridge is only used for supporting a single wheel set during the replacement operation of the power vehicle and the trailer wheel set, and the upper part of the movable gap bridge is used for supporting the supporting flat plate matched with the main transformer during the replacement operation of the power vehicle;
the auxiliary supporting device (9) is a jack with the bottom positioned on the overhauling track, the upper part of the jack is used for supporting the outer end part of the framework of the wheel set to be dropped during the replacement operation of the power wheel set, and the middle part of the framework on the inner side of the wheel set to be dropped during the replacement operation of the trailer wheel set;
the main machine is positioned in the wheel drop pit (10), the upper part of the main machine is used for bearing and lifting the movable bridge (6) and a wheel set or a supporting plate-power vehicle main transformer combination detached on the movable bridge, and the lower part of the main machine transversely walks in the wheel drop pit (10) and is used for moving a bearing to a replacement station at the side edge of an overhaul track;
the host comprises a main frame, a lifting device and a traveling part, wherein the lifting device and the traveling part are arranged on the main frame; wherein,
the main frame comprises a walking frame (1) at the bottom and a lifting frame (2) at the upper part;
the lifting device is arranged between the lifting frame (2) and the walking frame (1), and the walking part is arranged on the walking frame (1);
the lifting device comprises a worm, a worm gear and worm transmission case (3) and a lifting transmission system (7) which are vertically arranged;
the lower end of the worm is fixed on the walking frame (1), the upper end of the worm is connected with the lifting frame (2) through the worm gear box (3), and the lifting transmission system (7) is arranged below the lifting frame (2) and is used for lifting power of the worm gear box (3) system;
the walking part comprises a driving wheel set (4), a driven wheel set (5) and a sliding wire mechanism (8);
the driving wheel set (4) and the driven wheel set (5) walk on the bottom surface or the track on the bottom surface of the wheel drop pit (10); the sliding wire mechanism (8) is used for driving the walking frame (1) to transversely move for a fixed distance.
2. A method of using a dual-purpose drop turbine for a motor train unit power wheel set replacement operation as claimed in claim 1, the power train wheel being a wheel set with a traction motor and a gear box, comprising the steps of:
when the power vehicle runs on the movable gap bridge (6) of the falling wheel machine by a single preset wheel pair, the vehicle stops;
an auxiliary supporting device (9) is used for supporting the outer end part of the framework of the wheel set to be dropped, and the power wheel set is disassembled;
the main machine moves to the lower part of the movable gap bridge (6) to support the movable gap bridge in advance, and after the power wheel pair is disassembled, the movable gap bridge (6) is loosened to be connected with the fixed overhaul rails at the two ends;
the upper part of the host machine is lowered, the disassembled power wheel pair falls into the pit bottom and transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the host machine is lifted, the disassembled power wheel pair is lifted to the side of the vehicle, and the wheel falling of the power wheel pair is finished.
3. A method of operating as claimed in claim 2, wherein:
after the vehicle stops, anti-skid iron shoes are put in front of and behind the wheel set to be dropped, so that the wheel set is prevented from slipping.
4. A method for replacing a main transformer of a motor train unit with a dual-purpose drop turbine for a motor train unit as claimed in claim 1, comprising the steps of:
when the power vehicle runs to a preset position through the movable gap bridge (6), the main transformer faces the movable gap bridge (6) below, and the vehicle stops;
the host machine moves to the lower part of the movable gap bridge (6) to support the movable gap bridge (6), the movable gap bridge (6) is loosened to be connected with the fixed overhaul rails at the two ends, the upper part of the host machine is lowered, the movable gap bridge (6) is firstly lowered, then the host machine transversely moves to the side of a vehicle, and a support flat plate matched with the movable gap bridge (6) is placed on the movable gap bridge (6) through the overhead travelling crane;
the main machine moves transversely to return, the supporting flat plate is moved to the lower part of the main transformer, the upper part of the main machine drives the movable gap bridge (6) and the supporting flat plate to ascend, so that the upper plane of the supporting flat plate is flush with the lower plane of the main transformer, and the main transformer is disassembled;
after the main transformer is disassembled, the upper part of the main machine is lowered, the disassembled main transformer falls into the pit bottom, and the main transformer transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the main machine is lifted, the disassembled main transformer is lifted to the side of the vehicle, and the main transformer of the power vehicle is disassembled and transferred.
5. A method of using a dual-purpose drop turbine for a motor train unit to replace a pair of wheels of a motor train unit as claimed in claim 1, the pair of wheels of the trailer being a pair of wheels with axle brake discs, comprising the steps of:
when the trailer runs on the movable gap bridge (6) of the landing wheel machine by a single preset wheel pair, the vehicle stops;
an auxiliary supporting device (9) is used for supporting the middle part of the framework at the inner side of the wheel pair to be dropped, and the wheel pair of the trailer is disassembled;
the main machine moves to the lower part of the movable gap bridge (6) to support the movable gap bridge in advance, and after the trailer wheel set is disassembled, the movable gap bridge (6) is loosened to be connected with the fixed overhaul rails at the two ends;
the upper part of the host machine is lowered, the disassembled trailer wheel set falls into the pit bottom and transversely moves for a fixed distance;
after the transverse movement is finished, the upper part of the host machine is lifted, the disassembled trailer wheel set is lifted to the side of the vehicle, and the wheel setting of the trailer wheel set is finished.
6. The method of operation of claim 5, wherein:
after the vehicle stops, anti-skid iron shoes are put in front of and behind the wheel set to be dropped, so that the wheel set is prevented from slipping.
CN201910889379.9A 2019-09-19 2019-09-19 Dynamic and dragging dual-purpose landing machine and operation method Active CN110642182B (en)

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