CN114261923A

CN114261923A - Lifting machine set for railway locomotive frame

Info

Publication number: CN114261923A
Application number: CN202111612831.0A
Authority: CN
Inventors: 耿海路; 刘洋; 郭吉星; 张帅; 孙志宏
Original assignee: CRRC Datong Co Ltd
Current assignee: CRRC Datong Co Ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-04-01

Abstract

The application provides a railway locomotive framework elevator group for the framework of lift railway locomotive, including three at least independent lifts and controlling means, every lift includes fixing base, ram and lift part. A vertical guide rail is arranged on the fixed seat, the ram is arranged along the guide rail in a sliding manner, and the lifting component drives the ram to slide along the guide rail; the control device controls the at least three independent elevators to synchronously lift. By adopting the structure, the structure of the lifting device of the existing railway locomotive framework can be simplified, the foundation construction difficulty is reduced, the synchronous lifting of a plurality of lifters can be accurately controlled while the construction period is shortened, the efficiency is improved, and the lifting device is safe and reliable.

Description

Lifting machine set for railway locomotive frame

Technical Field

The application relates to a lifting unit, in particular to a railway locomotive framework lifting unit, and further relates to a railway locomotive framework lifting unit capable of automatically lifting a railway locomotive framework.

Background

The railway locomotive frame is a bogie of a railway locomotive, and the bogie is one of the most important parts in the structure of a railway vehicle, is mainly used for supporting a vehicle body, bearing and transmitting various loads and forces from the vehicle body to wheels or from wheel rails to the vehicle body and uniformly distributing the axle weight.

At present, lifting devices are adopted for assembling, disassembling and the like of a bogie, the lifting devices are installed on a civil engineering foundation to lift the bogie to a certain height, and workers can disassemble or assemble parts such as a shock absorber, a brake clamp and the like on the bogie. Because the bogie is bulky, the lifting device usually comprises a plurality of elevators, and in order to ensure that the plurality of elevators lift synchronously in the lifting process, the existing lifting device generally drives four elevators to lift by one motor, so that the structure is heavy and complex, the foundation construction cost is very high, the performance requirement on the motor is also very high, the cost is increased, and unnecessary waste is easily caused.

Disclosure of Invention

One of the main objects of the present application is to overcome at least one of the above-mentioned prior art defects, and to provide a railway locomotive frame lifting apparatus which can simplify the structure of the existing railway locomotive frame lifting apparatus, reduce the difficulty of the basic construction, shorten the construction period, and at the same time, can also realize the synchronous lifting of a plurality of precisely controlled lifters.

In order to achieve the purpose, the following technical scheme is adopted in the application:

according to one aspect of the present application, there is provided a railroad locomotive frame elevator group for elevating a frame of a railroad locomotive, comprising at least three independent elevators and a control device. Each lift includes fixing base, ram and lift part. A vertical guide rail is arranged on the fixed seat; the ram is arranged along the guide rail in a sliding manner; the lifting component drives the ram to slide along the guide rail. The control device controls the at least three independent elevators to synchronously lift.

According to one embodiment of the application, the number of elevators is four, arranged in use in a rectangular shape.

According to one of the embodiments of the application, the fixing base includes a fixing base horizontal part and a fixing base vertical part, two guide rails are vertically installed on the fixing base vertical part towards two sides of one surface of the ram.

According to one embodiment of the application, a sliding block is arranged on the guide rail in a matching mode, and the ram is fixed with the sliding block. The sliding block is arranged on the guide rail in a sliding mode.

According to one embodiment of the present application, two sliders are disposed on each of the guide rails.

According to one embodiment of the application, a limit switch is further arranged on the fixed seat and used for limiting the sliding position of the sliding block along the guide rail.

According to one embodiment of the application, the number of the limit switches is two, one of the limit switches is located at the upper end of the guide rail, and the other limit switch is located between the two sliding blocks on the same guide rail.

According to one embodiment of the application, the limit switch is fixedly arranged on the fixed seat through a limit switch frame.

According to one embodiment of the present application, the elevating screw part includes a servo motor, a speed reducer, and a ball screw, and the screw is disposed on the ram.

According to one embodiment of the application, the ball is fixedly connected with a nut seat, and the nut seat is fixed on the fixed seat.

According to one embodiment of the present application, each of the elevators further comprises: the mounting bracket, be used for with lift fixed mounting is on civil engineering basis, the fixing base is fixed on the mounting bracket.

According to one embodiment of the present application, each of the elevators further comprises: the supporting cylinder is used for supporting the framework, the supporting cylinder is fixedly mounted on the ram, and the servo motor and the speed reducer are arranged in the supporting cylinder.

According to the technical scheme, the railway locomotive framework elevator set has the advantages and positive effects that:

the application provides a railway locomotive framework elevator group for the framework of lift railway locomotive, including three at least independent lifts and controlling means, every lift includes fixing base, ram and lift part. A vertical guide rail is arranged on the fixed seat, the ram is arranged along the guide rail in a sliding manner, and the lifting component drives the ram to slide along the guide rail; the control device controls the at least three independent elevators to synchronously lift. Through the design, the railway locomotive framework elevator group that this application provided can simplify current railway locomotive framework elevating gear's structure, reduces the basic construction degree of difficulty, can also realize that many elevators of accurate control go up and down in step when shortening construction cycle, raises the efficiency, and safe and reliable to can reduce the performance requirement to the motor, reduce the cost, avoid unnecessary extravagant.

Drawings

Various objects, features and advantages of the present application will become more apparent from the following detailed description of preferred embodiments thereof, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the application and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

FIG. 1 is a schematic illustration of the installation of a railroad locomotive frame elevator group of the present application to a civil foundation.

Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic structural diagram of a single elevator of the present application.

Fig. 4 is a schematic view of the structure of fig. 3 taken along the direction B-B.

Fig. 5 is a schematic structural diagram of the fixing base and the assembly of the present application.

Fig. 6 is a schematic view of the cross-sectional structure of fig. 5 taken along the direction C-C.

Fig. 7 is a schematic structural view of the lifting member of the present application.

Fig. 8 is a schematic view of the cross-sectional structure of fig. 7 taken along line D-D.

Fig. 9 is a schematic structural view of the ram of the present application.

Fig. 10 is a schematic sectional structure view of the left side of fig. 9.

Fig. 11 is a top view of fig. 9.

Fig. 12 is a schematic structural view of the support cylinder of the present application.

Fig. 13 is a schematic left side sectional view of fig. 12.

Fig. 14 is a top view of fig. 12.

Fig. 15 is a schematic structural view of the mounting bracket of the present application.

Fig. 16 is a schematic view of the structure of fig. 15 taken along the direction of E-E.

Fig. 17 is a top view of fig. 15.

The reference numerals are explained below:

100. a railway locomotive frame elevator group (mounted on a civil foundation);

101. an elevator;

102. building a foundation;

301. a fixing seat and an assembly;

302. a guide rail;

303. a ram;

304. a mounting frame;

305. a support cylinder;

401. a lifting member;

501. a fixed seat;

5011. a horizontal part of the fixed seat;

5012. a fixing seat vertical part;

502. a slider;

503. a limit switch frame;

504. a limit switch;

701. a servo motor;

702. a speed reducer;

703. a ball screw;

7031. a lead screw;

7032. a ball bearing;

704. a nut seat;

705. a cable;

706. a bottom cover;

707. lubricating oil pipe is injected;

901. an upper bearing seat;

902. a side plate;

903. a rib plate;

904. a back plate;

905. a front cover plate;

906. a lower end plate;

1201. a flange;

1202. a steel pipe;

1203. an upper cover plate;

1701. mounting holes;

1702. a cavity.

Detailed Description

Exemplary embodiments that embody features and advantages of the present application are described in detail below in the specification. It is to be understood that the present application is capable of various modifications in various embodiments without departing from the scope of the application, and that the description and drawings are to be taken as illustrative and not restrictive in character.

In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "upper", "lower", "between", and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention. When introducing elements/components/etc. described and/or illustrated herein, the terms "first," "second," and "third," etc. are used to indicate the presence of one or more elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

Referring to fig. 1 and 2, a schematic diagram of a railroad car frame lift assembly 100 is representatively illustrated (control device is not shown in the drawings), and in particular, the railroad car frame lift assembly 100 includes four independent lifts 101 arranged in a rectangular configuration inside a civil foundation 102. The four independent elevators 101 are controlled by the control device to realize synchronous lifting. The number of the elevators 101 is at least three, and may be five, six, etc., which is not limited herein. The arrangement and the layout of the railway locomotive frame are not required to be special, so long as the railway locomotive frame placed on the railway locomotive frame is basically uniformly stressed.

Fig. 3 and 4 show the structure of a single elevator 101 according to the present application, in which the elevator 101 includes a fixing base and assembly 301, a ram 303 and an elevating member 401, the fixing base and assembly 301 is fixed to the civil engineering foundation 102, and the fixing base and assembly 301 further includes a guide rail 302; the ram 303 slides up and down along the guide rail 302, and the railway locomotive framework is arranged above the ram 303; the lifting member 401 drives the ram 303 to slide along the guide rails 302, thereby lifting the frame.

In the above exemplary embodiments, the railroad locomotive frame elevator group proposed in the present application is described by taking the application to a railroad locomotive frame as an example. Those skilled in the art will readily appreciate that numerous modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to apply the teachings of the present application to other types of locomotive architectures, and still be within the scope of the principles of railroad locomotive architecture elevator groups presented herein.

In this embodiment, each independent elevator 101 further includes a mounting bracket 304, the mounting bracket 304 is a steel structural member, and may be made of materials such as carbon steel or stainless steel, and is fixedly mounted on the civil engineering foundation 102, and the fixing base and the assembly 301 are fixedly mounted on the mounting bracket 304, and the mounting bracket can play a role in firmly fixing the whole device on the civil engineering foundation.

In this embodiment, each independent elevator 101 further includes a support cylinder 305, the support cylinder 305 is a steel structural member and may be made of carbon steel or stainless steel, the lower end of the support cylinder 305 is mounted on the ram 303, the upper end supports a railway locomotive frame (not shown in the figure), and the support cylinder can support the frame, so that the frame is stressed uniformly.

Fig. 5 and 6 show the structure of the fixing base and assembly 301 of the present application, and the fixing base and assembly 301 further includes a fixing base 501 and a sliding block 502. Wherein fixing base 501 includes fixing base horizontal part 5011 and the vertical portion 5012 of fixing base, and fixing base horizontal part 5011 and mounting bracket 304 fixed connection, two guide rails 302 are vertically installed towards the both sides of the one side of ram 303 in the vertical portion 5012 of fixing base, are provided with two sliders 502 on every guide rail 302, and slider 502 fixed connection ram 303, ram 303 pass through slider 502 and slide from top to bottom along guide rail 302. The fixing base 501 is a steel structure and can be made of carbon steel or stainless steel.

In this embodiment, the fixing base and assembly 301 further includes a limit switch bracket 503 and a limit switch 504. The limit switch 504 is disposed on a limit switch frame 503 for limiting a position to which the slider 502 can slide along the guide rail 302, and the limit switch frame are disposed in a pair. In this embodiment, the number of limit switches and limit switch racks is two, one of which is located at the upper end of the guide rail 302, and the other of which is located between two sliders 502 on the same guide rail. In other embodiments, the number of the limit switches and the limit switch frame can be multiple; the position of the limit switches and limit switch bracket may also be set based on the sliding position of the slider 502 on the guide rail 302. And are not intended to be limiting herein. The setting of limit switch can avoid the ram sliding distance too big to cause the potential safety hazard.

Fig. 7 and 8 show a structure of the lifting member 401 of the present application, and the lifting member 401 includes a servo motor 701, a speed reducer 702, and a ball screw 703. The servo motor 701 drives the ball screw 703 through the speed reducer 702, the ball screw 703 comprises a screw 7031 and a ball 7032, the screw 7031 is arranged on the ram 303 (not shown in the figure), the ball 7032 is fixedly connected with a nut seat 704, and the nut seat 704 is fixed on the fixed seat 501 (not shown in the figure). The screw rod is lifted through the screw seat fixed on the fixed seat, and then the ram is lifted.

In this embodiment, the lifting member 401 further includes a cable 705, a bottom cover 706 and a grease injection pipe 707.

Fig. 9, 10, and 11 show the structure of the ram 303 of the present application, and the ram 303 includes an upper bearing housing 901, a side plate 902, a rib plate 903, a back plate 904, a front cover plate 905, and a lower end plate 906. The ram 303 is a hollow structure, the ball screw 703 is arranged in the hollow of the ram 303, the upper bearing seat 901 is mounted on one end of the screw 7031 through a bearing, and the lower end plate 906 is mounted on the other end of the screw 7031 through the bottom cover 706. The front cover plate 905 is a hollowed-out plate to reduce the weight of the ram 303, and the ram 303 is a steel structural member, can be made of carbon steel or stainless steel and other materials, and can be made by a welding process or other processes.

Fig. 12, 13 and 14 show the structure of the support cylinder 305 of the present application, and the support cylinder 305 includes an upper cover plate 1203, a steel pipe 1202 and a flange 1201. The upper cover plate 1203 of the support cylinder 305 supports a railway locomotive frame (not shown in the figure), the flange 1201 at the lower end of the support cylinder 305 is fixedly connected with the upper bearing seat 901 of the ram 303, so that the ram 303 can drive the support cylinder 305 to lift, and the servo motor 701 and the speed reducer 702 are positioned in the steel pipe 1202 to lift the railway locomotive frame.

Fig. 15, 16 and 17 show the structure of the mounting bracket 304 of the present application, the mounting bracket 304 is square, mounting holes 1701 are arranged at the corners of the square for fixing the mounting bracket 304 on the civil foundation 102, in this embodiment, the number of the mounting holes 1701 is four, or may be multiple, and a square cavity 1702 is arranged in the middle of the mounting bracket 304 for accommodating the supporting cylinder 305. Mounting bracket 304 may also be other shapes, such as circular, rectangular, etc.; the cavity may have other shapes, such as circular, rectangular, etc., as long as it can accommodate the support cylinder.

It should be noted herein that the railroad car frame lift assembly 100 illustrated in the drawings and described in the present specification is but a few examples of the many types of railroad car frame lift assemblies that can employ the principles of the present application. It should be clearly understood that the principles of this application are in no way limited to any of the details of the railroad car frame elevator group or any of the components of the railroad car frame elevator group shown in the drawings or described in this specification.

The foregoing is a detailed description of several exemplary embodiments of a railroad car frame elevator group as set forth herein, and the following is a description of the use of a railroad car frame elevator group as set forth herein.

With reference to fig. 1 to 17, the application provides a use process of the lifting unit for a railway locomotive frame, which comprises the following steps: when the railway locomotive framework needs to be assembled or disassembled and the like, the starting control device sends a control command, servo motors of four independent elevators drive the lead screw to rotate through the speed reducer, the ball is fixed on the screw seat, and the screw seat is fixed on the fixed seat, so that the height of the ball is unchanged, the lead screw is fixed with the ram, the ram can slide upwards along the guide rail on the fixed seat, and the lead screw can drive the ram to move upwards along the guide rail. A supporting cylinder is arranged above the ram and used for supporting the railway locomotive framework, so that the ram can move upwards to drive the supporting cylinder to move upwards, and the railway locomotive framework can ascend.

When the device is not needed, the control device sends out a control command, servo motors of the four independent elevators drive the screw rod to rotate through the speed reducer, and the screw rod drives the ram to move downwards along the guide rail. The support barrel arranged above the ram descends and is used for supporting the railway locomotive framework, so that the ram can move downwards to drive the support barrel to move downwards, and the descending of the railway locomotive framework is further realized.

The control device of the application can realize synchronous control on the elevator, and the operation mode of the control device has two types:

1) the lifting can be realized by one key at the appointed height, and the appointed height can be set at will.

2) The lifting is electrically controlled, the button is pressed to ascend or descend, and the button is released to stop.

The railway locomotive framework elevator set is installed in a civil engineering foundation pit. When the lifting device is used as required, the control device can control the lifting unit to synchronously lift to a proper height, and the lifting height can be adjusted in real time according to the operation content. When not in use, the railway locomotive frame lifting unit is completely submerged into the ground and is flush with the ground.

Through the use of the railway locomotive framework elevator group, the railway locomotive framework elevator group can be obtained, the continuous action is automatic, the flow line operation of the framework can be realized, the framework lifting is synchronously realized in the railway locomotive framework assembling or disassembling work, and the problems that the existing lifting device is heavy and complex in structure, high in foundation construction cost, high in performance requirement on the motor and the like are solved.

In summary, the present application provides a lifting unit for a railway locomotive frame, which is used for lifting a railway locomotive frame, and includes at least three independent lifts and a control device, wherein each lift includes a fixing base, a ram and a lifting member. A vertical guide rail is arranged on the fixed seat, the ram is arranged along the guide rail in a sliding manner, and the lifting component drives the ram to slide along the guide rail; the control device controls the at least three independent elevators to synchronously lift. The railway locomotive framework elevator unit can realize synchronous lifting of the elevators which are controlled independently, simplifies the structure of the lifting device, reduces the construction cost of the foundation, reduces the performance requirement on the motor, and reduces the cost. And the construction period can be shortened, and the production efficiency is improved.

Exemplary embodiments of a railroad locomotive frame elevator group presented herein are described and/or illustrated in detail above. The embodiments of the present application are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or step of one embodiment can also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. described and/or illustrated herein, the articles "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc.

Embodiments of the present application are not limited to the specific embodiments described herein, but rather, components of each embodiment may be utilized independently and separately from other components described herein. Each component of one embodiment can also be used in combination with other components of other embodiments. In the description herein, reference to the term "one embodiment," "some embodiments," "other embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the railroad locomotive frame elevator group presented herein has been described in terms of various specific embodiments, those skilled in the art will recognize that the practice of the present application can be practiced with modification within the spirit and scope of the claims.

Claims

1. A railroad locomotive frame hoist assembly for lifting a frame of a railroad locomotive, comprising: the method comprises the following steps:

at least three independent lifts, each said lift comprising:

the fixing seat is provided with a vertical guide rail;

the ram is arranged along the guide rail in a sliding manner;

the lifting component drives the ram to slide along the guide rail;

and the control device controls the at least three independent elevators to synchronously lift.

2. The railroad car frame lift assembly of claim 1, wherein: the number of the elevators is four, and the elevators are arranged in a rectangular shape when in use.

3. The railroad car frame lift assembly of claim 1, wherein: the fixing seat comprises a fixing seat horizontal part and a fixing seat vertical part, and two guide rails are vertically arranged on two sides of one surface of the fixing seat facing the ram.

4. The railroad car frame lift assembly of claim 1, wherein: the guide rail is provided with a sliding block in a matching mode, and the ram is fixed with the sliding block. The sliding block is arranged on the guide rail in a sliding mode.

5. The railroad car frame lift assembly of claim 4, wherein: two sliding blocks are arranged on each guide rail.

6. The railroad car frame lift assembly of claim 4, wherein: and the fixed seat is also provided with a limit switch for limiting the sliding position of the sliding block along the guide rail.

7. The railroad car frame lift assembly of claim 6, wherein: the number of limit switches is two, and one of them is located the upper end of guide rail, and another is located same root two on the guide rail between the slider.

8. The railroad car frame lift assembly of claim 1, wherein: the limit switch is fixedly arranged on the fixed seat through a limit switch frame.

9. The railroad car frame lift assembly of claim 1, wherein: the lifting component comprises a servo motor, a speed reducer and a ball screw, and the ball screw is arranged on the ram.

10. The railroad car frame lift assembly of claim 9, wherein: the ball fixedly connected with screw seat, the screw seat is fixed on the fixing base.

11. The railroad car frame lift assembly of claim 1, wherein: each of the elevators further includes:

the mounting bracket is used for fixedly mounting the lifter on a civil engineering foundation, and the fixing seat is fixed on the mounting bracket.

12. The railroad car frame lift assembly of claim 1, wherein: each of the elevators further includes:

the supporting cylinder is used for supporting the framework, the supporting cylinder is fixedly mounted on the ram, and the servo motor and the speed reducer are arranged in the supporting cylinder.