CN210129305U

CN210129305U - Railway locomotive and vehicle running gear inspection device

Info

Publication number: CN210129305U
Application number: CN201920518852.8U
Authority: CN
Inventors: 周宗明; 廖贞星; 彭欢; 王敬; 罗洪强
Original assignee: Chongqing Vocational College of Public Transportation
Current assignee: Chongqing Vocational College of Public Transportation
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-03-06
Anticipated expiration: 2029-04-16

Abstract

The utility model relates to a railway locomotive and vehicle running gear inspection device. The inspection platform comprises a left inspection operation platform surface and a right inspection operation platform surface (1), a lifting system (5) and a pit (7); the pit (7) is a two-stage stepped pit, and a steel rail upright post (11) is arranged at the bottom of the first-stage stepped pit (71); a plurality of left second-stage stepped pits (9) are arranged between the left steel rail upright post (11) and the left edge of the first-stage stepped pit (71); a plurality of right second-stage stepped pits (10) are arranged between the right steel rail upright post (11) and the right edge of the first-stage stepped pit (71); and lifting mechanisms are respectively fixed in the left second-stage stepped pit (9) and the right second-stage stepped pit (10). The utility model discloses rational in infrastructure, low in production cost, energy-concerving and environment-protective, be convenient for carry out the railway locomotive and the vehicle is walked the left and right sides of line portion and bottom and is reorganized and outfit the inspection operation procedure very conveniently in limited place.

Description

Railway locomotive and vehicle running gear inspection device

Technical Field

The utility model relates to a special inspection facility of locomotive engineering especially relates to railway locomotive and vehicle running gear inspection device.

Background

The inspection device for the running gear of the railway locomotive and the vehicle is a necessary practical training working device for finishing the inspection training project of the running gear of the railway locomotive and the vehicle. As a training institution for the professional training of railway colleges and universities, railway locomotives and railway vehicles, training of inspection skills of railway locomotives and vehicle running parts is an important content for the professional training of railway locomotives and railway vehicles. At present, the examination training of railway locomotives and vehicle running parts in universities and colleges of professorship has the following modes: firstly, the railway locomotive is connected with a railway locomotive depot, vehicles can be watched on the real site, the real effect is that only the vehicles can be watched without hands, and the effect of on-site teaching is achieved. And secondly, the scrapped railway locomotive and the vehicle running part are purchased by a railway general company in a paid dispatching mode and directly placed on a railway comprehensive practical training line of a college, and no inspection device specially used for the practical training inspection of the railway locomotive and the vehicle running part is built. Thirdly, a section of inspection pit is arranged at the place where the railway locomotive and the running part of the vehicle are placed to be used as a workbench. The inspection pit is a conventional facility used for inspection training of the railway locomotive and the vehicle running part in the current colleges and universities of higher vocational education.

In the prior art, an inspection pit with the depth of about 1.65 meters is directly dug under the ground at the bottoms of a railway locomotive and a vehicle running gear, the purpose is to inspect the bottoms of the railway locomotive and the vehicle running gear, and during inspection, an operator enters the inspection pit to perform inspection operation and can only complete the bottom inspection operation procedure of the railway locomotive and the vehicle running gear; when the left side and right side inspection operation procedures of the railway locomotive and the vehicle running part are required, an inspector can only bend over the waist or climb over the ground to look over the head, and the labor intensity is very high in view of the long length (generally 20-30 meters) of the railway locomotive and the vehicle running part. How to develop the railway locomotive and the operation procedure of the left side, the right side and the bottom of the vehicle running gear in the limited field of the professional college, the laboratory training room of the school really changes into the workshop of the factory, and more conveniently, students can learn the driving and maintenance ability of the locomotive proficiency, thus the problem to be solved urgently is to finish the inspection training project of the railway locomotive and the vehicle running gear.

At present, in the prior art, there is a scheme of parking a railway locomotive and a vehicle running part on a steel structure support column with a certain height away from the ground so as to conveniently and skillfully learn or complete the inspection project of the railway locomotive and the vehicle running part, but the scheme is very complicated and tedious to operate, for example, firstly, the railway locomotive and the vehicle running part need to be parked on the steel structure support column with a certain height away from the ground, and a plurality of factors such as how to ensure the safety of the railway locomotive and the vehicle running part need to be considered. At present, there are no reports on special tables for inspection of railway locomotives and vehicle running gears.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a railway locomotive and vehicle walk capable portion inspection device, this inspection device rational in infrastructure, low in production cost, energy-concerving and environment-protective, be convenient for develop the railway locomotive and the vehicle walk capable portion left and right sides and bottom service inspection operation procedure very conveniently in limited place.

The purpose of the utility model is realized through the following technical scheme:

a railway locomotive and a vehicle running gear inspection device, characterized in that: the device comprises a left inspection operation table surface, a right inspection operation table surface, a motor, a speed reducer, a coupling, a lifting system and a pit; the pit is a second-stage stepped pit, steel rail upright columns are correspondingly arranged at the bottoms of the first-stage stepped pits positioned at the left side and the right side of the upper end of the second-stage stepped pit, steel rails are fixed at the upper parts of the steel rail upright columns, and the railway locomotive and the vehicle travelling part are supported on the steel rails; 2-8 left second-stage stepped pits are uniformly distributed in a line between the left steel rail stand column on the left side and the left edge of the first-stage stepped pit; 2-8 right second-stage stepped pits uniformly distributed in a line are arranged between the right steel rail stand column and the right edge of the first-stage stepped pit; a lifting mechanism is respectively fixed in the left second-stage stepped pit and the right second-stage stepped pit; the lifting mechanism is a worm gear lead screw lifter; an output shaft of the motor is connected with the speed reducer, the output shaft of the speed reducer is connected with the lifting system through the coupler, the lifting system is composed of a plurality of worm gear lead screw lifters which are uniformly distributed in a line, and two adjacent worm gear lead screw lifters are connected through the coupler and the connecting rod; the top end of a lifting screw rod of each worm gear screw rod lifter is connected with the bottom of the inspection operation table board, and the bottom of the lifting screw rod of each worm gear screw rod lifter extends into a left second-stage step pit or a right second-stage step pit arranged below each worm gear screw rod lifter.

Aiming at the problem that the whole occupied area of an inspection working site is limited when the left, right and bottom preparation inspection operation procedures of a railway locomotive and a vehicle running part are carried out in the current fields of the professional college and the like, the inventors have long studied and found that, in the case where the running parts of the railway rolling stock and the train are long and there is no special device for inspection, when designing a special device for inspecting the running gear of the railway locomotive and the vehicle, the inspection device for inspecting the running gear of the railway locomotive and the vehicle needs to be ensured due to the influence of factors such as land occupation, vehicle length, safety, operability and the like, the whole occupied area is appropriate, the energy is saved, the environment is protected, the smooth power transmission is ensured, the consistency, the harmony and other factors of the whole motion of the inspection device in the length direction of the vehicle can be kept, the stable and normal use of the workbench can be ensured, and the safety of the workbench is strictly ensured in use. The utility model discloses a two inspection operation mesa about specific, operating system etc. have been set up to realized guaranteeing that gained railway locomotive and vehicle walk the whole area of foot section inspection device and suitable, power transmission is smooth and then drive inspection operation mesa and keep the uniformity, the harmony etc. of global motion on vehicle length direction when energy-concerving and environment-protective, has conveniently simplified railway locomotive and vehicle and has walked foot section inspection work, has guaranteed security and reliability in the use.

As a further optimization, the inspection device for the running gear of the railway locomotive and the vehicle further comprises a cross-shaped commutator; a left second-stage stepped pit which is uniformly distributed into a plurality of rows and is provided with 2-8 in each row is arranged between the steel rail upright column on the left side and the left edge of the first-stage stepped pit; right second-stage stepped pits which are uniformly distributed into a plurality of rows and 2-8 in each row are arranged between the right steel rail stand column and the right edge of the first-stage stepped pit; the output shaft of the speed reducer is connected with an adjacent group of lifting systems through the shaft coupling and the cross-shaped commutator, the group of lifting systems consists of a plurality of worm wheel screw rod lifters which are uniformly distributed in a line, and the two groups of adjacent lifting systems are connected through the shaft coupling and the cross-shaped commutator.

As a further optimization, the worm wheel screw rod lifter comprises a mounting seat, a box body, a worm wheel and a lifting screw rod, wherein the mounting seat is connected to the bottom of the box body and is mounted on the left second-stage stepped pit or the right second-stage stepped pit through a bolt; install in the box horizontal direction worm, vertical upward install the worm wheel, this worm wheel middle part is equipped with the screw hole, installs in this screw hole the lift lead screw, the one end of worm is connected with the output shaft of reduction gear as power input end or through shaft coupling, cross commutator, or through shaft coupling, connecting rod and the worm of preceding above-mentioned worm wheel lead screw lift, the other end of worm passes through the shaft coupling as power output end, the connecting rod is connected with the worm of the above-mentioned worm wheel lead screw lift of back, this worm meshes with the worm wheel, the worm wheel meshes with the lift lead screw mutually, the top of lift lead screw is connected with the bottom of inspection operation mesa through the flange, the bottom of lift lead screw stretches into in above-mentioned left side second grade ladder hole or above-mentioned right side second grade ladder hole.

As further optimization, the bottom of the mounting seat is also connected with a protective sleeve for protecting the bottom of the lifting screw rod, and the protective sleeve extends into the left second-stage stepped pit or the right second-stage stepped pit.

As a further optimization, the cross-shaped commutator comprises a commutator box body, a transverse shaft and a longitudinal shaft, wherein the transverse shaft and the longitudinal shaft are arranged in the commutator box body through bearings, the transverse shaft is provided with a transverse shaft bevel gear, the longitudinal shaft is provided with a longitudinal shaft bevel gear, the transverse shaft bevel gear is meshed with the longitudinal shaft bevel gear, and the transverse shaft and the longitudinal shaft are respectively connected with an output shaft of the speed reducer or a worm of the worm gear-screw lifter through the coupler.

The utility model discloses following beneficial effect has:

the utility model provides a railway locomotive and vehicle walk capable portion inspection device, this inspection device have simple structure and very reasonable, convenient operation, pleasing to the eye comfortable, the training effect is excellent, energy-concerving and environment-protective, have advantages such as higher reliability and security. Specifically, a left inspection operation table top and a right inspection operation table top which have specific structures and can be lifted and lowered and a second-stage step pit are respectively formed at the bottom, the left side and the right side of a running part of a railway locomotive and a vehicle, and a plurality of worm gear lead screw lifters are driven by a motor to be lifted and lowered synchronously, so that the whole inspection operation table top is kept to be lifted and lowered stably and integrally and consistently, the structure is ensured to be very reliable, the lifting process of the inspection operation table top is integrally coordinated, and the inspection operation comfort is better; when the inspection operation table is lowered to the lowest position state (operation state), the whole depth of the trench on one side of the railway locomotive and the vehicle running part is displayed, so that an operator can conveniently enter the inspection operation to conveniently carry out the inspection operation, and when the inspection operation table is raised to the highest position state (non-operation state), the inspection operation table is flush with the ground, meanwhile, the training field can obtain the largest space, so that the field application is conveniently converted, in the whole lifting process, the parking state and the parking position of the railway locomotive and the vehicle running part are kept unchanged only by lifting the inspection operation table, so that manpower materials are greatly saved, and the inspection operation has higher reliability and safety. In addition, this inspection device adopts motor direct drive, and its simple structure, dexterity, low in production cost easily uses widely, not only can set up and supply the student to instruct and train in fact in the real room of instructing of professional education, also can be used to the maintenance workshop of locomotive section and vehicle section, satisfies the maintenance training work of production front-line, and application scope is wide.

Drawings

Fig. 1 is a schematic structural view of a railway locomotive and a vehicle running gear inspection device according to embodiment 1 of the present invention.

Fig. 2 is a sectional view taken along a line a-a of the inspection work surface in the highest position (non-operation state) in the inspection device for a running gear of the railway vehicle and the running gear of the vehicle shown in fig. 1.

Fig. 3 is a sectional view taken along a line a-a of the inspection work platform in the inspection device for a running gear of the railway vehicle and the running gear of the vehicle shown in fig. 1, in a state of being located at the lowest position (operation state).

Fig. 4 is a schematic view showing a connection relationship between the railway vehicle and the components such as the motor in the inspection device for the running gear of the vehicle according to embodiment 1 of the present invention.

Fig. 5 is a schematic structural view of the worm screw elevator in the railway locomotive and the inspection device for a running gear of a vehicle according to

embodiments

1 and 2 of the present invention.

Fig. 6 is a schematic structural view of the railway vehicle and the vehicle running gear inspection device according to embodiment 2 of the present invention.

Fig. 7 is a schematic view showing a connection relationship between the railway vehicle and the components such as the motor in the inspection device for the running gear of the vehicle according to embodiment 2 of the present invention.

Fig. 8 is a schematic structural view of the cross commutator in the railway locomotive and the inspection device for a running gear of a vehicle according to embodiment 2 of the present invention.

In the figure, 1-inspection operation table, 2-motor, 3-reducer, 4-coupler, 5-lifting system, 51-worm screw elevator, 5111-mounting seat, 5112-box, 5113-worm, 5114-worm gear, 5115-lifting screw, 5116-flange, 5117-protective sleeve, 6-connecting rod, 7-pit, 71-first stage pit, 72-second stage pit, 8-cross commutator, 801-commutator box, 802-bearing, 803-horizontal shaft, 804-vertical shaft, 805-horizontal shaft bevel gear, 806-vertical shaft bevel gear, 9-left second stage pit, 10-right second stage pit and 11-steel rail upright post.

Detailed Description

The present invention is further described in connection with the following examples, which are not intended to limit the invention thereto.

Example 1

As shown in the attached figures 1-5, the inspection device for the running gear of the railway locomotive and the vehicle comprises a left inspection operation platform surface and a right inspection operation platform surface 1, a motor 2, a speed reducer 3, a coupling 4, a lifting system 5 and a pit 7; the inspection operation table top 1 is of a rectangular structure welded by I-shaped steel, and an anti-skid steel plate is paved on the inspection operation table top 1 and used for bearing inspection personnel; the pit 7 is a second-stage stepped pit, a steel rail upright post 11 is correspondingly arranged at the bottom of a first-stage stepped pit 71 which is positioned at the left side and the right side of the upper end of a second-stage stepped pit 72, the upper end of the steel rail upright post 11 is flush with the ground, a steel rail is fixed at the upper part of the steel rail upright post 11, and a railway locomotive and a vehicle travelling part are supported on the steel rail; 3 left second-stage stepped pits 9 which are uniformly distributed in a line are arranged between the left steel rail upright post 11 and the left edge of the first-stage stepped pit 71; 3 right second-stage stepped pits 10 which are uniformly distributed in a line are arranged between the right steel rail upright post 11 and the right edge of the first-stage stepped pit 71; a worm gear screw rod lifter 51 is respectively fixed in the left second-stage stepped pit 9 and the right second-stage stepped pit 10; an output shaft of the motor 2 is connected with the speed reducer 3, an output shaft of the speed reducer 3 is connected with the lifting system 5 through the coupler 4, the lifting system 5 is composed of 3 worm-gear lead screw lifters 51 which are uniformly distributed in a line, and two adjacent worm-gear lead screw lifters 51 are connected through the coupler 4 and the connecting rod 6; the top end of a lifting screw 5115 of each worm screw lifter 51 is connected with the bottom of the inspection operation table board 1, and the bottom of the lifting screw 5115 of each worm screw lifter 51 extends into a left second-stage pit 9 or a right second-stage pit 10 below each worm screw lifter 51; the worm screw rod lifter 51 comprises a mounting seat 5111, a box 5112, a worm 5113, a worm wheel 5114 and a lifting screw rod 5115; a mounting seat 5111 is connected to the bottom of the box body 5112, and the mounting seat 5111 is mounted on the left second-stage pit 9 or the right second-stage pit 10 through bolts; a worm 5113 is horizontally installed in the box body 5112, a worm wheel 5114 is vertically installed in the box body 5112, a threaded hole is formed in the middle of the worm wheel 5114, a lifting screw rod 5115 is installed in the threaded hole, one end of the worm 5113 serves as a power input end or is connected with an output shaft of the speed reducer 3 through a coupler 4, or is connected with the worm 5113 of the previous worm wheel screw rod lifter 51 through the coupler 4 and a connecting rod 6, the other end of the worm 5113 serves as a power output end and is connected with the worm 5113 of the next worm wheel screw rod lifter 51 through the coupler 4 and the connecting rod 6, the worm 5113 is meshed with the worm wheel 5114, the worm wheel 5114 is meshed with the lifting screw rod 5115, the top end of the lifting screw rod 5115 is connected with the bottom of the inspection operation table top 1 through a flange 5116, and the bottom of the lifting screw; the bottom of the mounting seat 5111 is further connected with a protecting sleeve 5117 for protecting the bottom of the lifting screw 5115, and the protecting sleeve 5117 also correspondingly extends into the left second-stage pit 9 or the right second-stage pit 10.

The working principle and the process of the inspection device for the running gear of the railway locomotive and the vehicle in the embodiment are as follows:

the output shaft of the motor 2 is connected with the speed reducer 3, the output shaft of the speed reducer 3 transmits power to the worm 5113 of the first adjacent worm-and-screw elevator 51 in the lifting system 5 through the coupler 4, the worm 5113 transmits power to the worm 5113 of the next worm-and-screw elevator 51 through the coupler 4 and the connecting rod 6 while driving the lifting screw 5115 to lift through the driving worm wheel 5114, and so on until the power is transmitted to the worm 5113 of the last worm-and-screw elevator 51; the center of the worm wheel 5114 in the worm wheel screw rod lifter 51 is of an internal thread structure, which is equivalent to a nut matched with the lifting screw rod 5115, the worm 5113 is used for driving the worm wheel 5114 to realize speed reduction, and the worm wheel 5114 is also driven to rotate to drive the lifting screw rod 5115 to lift, so that the lifting screw rods 5115 of the worm wheel screw rod lifters 51 lift synchronously, and the integral maintenance of coordinated and consistent lifting of the inspection operation table top 1 is realized. Wherein, when the inspection operation platform 1 is in the lowest position, it is in the operation state (as shown in fig. 3), and the whole depth of the trench is displayed, and the condition at this time allows the operator to have enough height and space for inspection; when the inspection operation table top 1 is in the highest position state, the inspection operation table top 1 is in a non-operation state (as shown in fig. 2), and the inspection operation table top 1 is flush with the ground, and meanwhile, the training field can obtain the largest space, so that the field application is convenient to convert.

Example 2

As shown in fig. 6-8, the inspection device for the running gear of the railway locomotive and the vehicle comprises a left inspection operation platform surface and a right inspection operation platform surface 1, a motor 2, a speed reducer 3, a coupling 4, a lifting system 5, a cross commutator 8 and a pit 7; the inspection operation table top 1 is of a rectangular structure welded by I-shaped steel, and an anti-skid steel plate is paved on the inspection operation table top 1 and used for bearing inspection personnel; the pit 7 is a second-stage stepped pit, a steel rail upright post 11 is correspondingly arranged at the bottom of a first-stage stepped pit 71 which is positioned at the left side and the right side of the upper end of a second-stage stepped pit 72, the upper end of the steel rail upright post 11 is flush with the ground, a steel rail is fixed at the upper part of the steel rail upright post 11, and a railway locomotive and a vehicle travelling part are supported on the steel rail; a left second-stage stepped pit 9 which is uniformly distributed in two rows and is provided with 3 in each row is arranged between the left steel rail upright post 11 on the left side and the left edge of the first-stage stepped pit 71; a right second-stage stepped pit 10 which is uniformly distributed in two rows and is provided with 3 in each row is arranged between the right steel rail upright post 11 and the right edge of the first-stage stepped pit 71; a worm gear screw rod lifter 51 is respectively fixed in the left second-stage stepped pit 9 and the right second-stage stepped pit 10; an output shaft of the motor 2 is connected with the speed reducer 3, the output shaft of the speed reducer 3 is connected with an adjacent group of lifting systems 5 through a coupler 4 and a cross-shaped commutator 8, the group of lifting systems 5 consists of three worm-gear lead screw lifters 51 which are uniformly distributed in a line, and the two groups of adjacent lifting systems 5 are connected through the coupler 4 and the cross-shaped commutator 8; two adjacent worm wheel screw rod lifters 51 are connected through a coupler 4 and a connecting rod 6; the top end of a lifting screw 5115 of each worm screw lifter 51 is connected with the bottom of the inspection operation table board 1, and the bottom of the lifting screw 5115 of each worm screw lifter 51 extends into a left second-stage pit 9 or a right second-stage pit 10 below each worm screw lifter 51; the worm screw rod lifter 51 comprises a mounting seat 5111, a box 5112, a worm 5113, a worm wheel 5114 and a lifting screw rod 5115; a mounting seat 5111 is connected to the bottom of the box body 5112, and the mounting seat 5111 is mounted on the left second-stage pit 9 or the right second-stage pit 10 through bolts; a worm 5113 is horizontally installed in the box body 5112, a worm wheel 5114 is vertically installed in the box body 5112, a threaded hole is formed in the middle of the worm wheel 5114, a lifting screw rod 5115 is installed in the threaded hole, one end of the worm 5113 serves as a power input end or is connected with an output shaft of the speed reducer 3 through a coupler 4, or is connected with the worm 5113 of the previous worm wheel screw rod lifter 51 through the coupler 4 and a connecting rod 6, the other end of the worm 5113 serves as a power output end and is connected with the worm 5113 of the next worm wheel screw rod lifter 51 through the coupler 4 and the connecting rod 6, the worm 5113 is meshed with the worm wheel 5114, the worm wheel 5114 is meshed with the lifting screw rod 5115, the top end of the lifting screw rod 5115 is connected with the bottom of the inspection operation table top 1 through a flange 5116, and the bottom of the lifting screw; the bottom of the mounting seat 5111 is also connected with a protective sleeve 5117 for protecting the bottom of the lifting screw 5115, and the protective sleeve 5117 correspondingly extends into the left second-stage pit 9 or the right second-stage pit 10; the cross commutator 8 comprises a commutator box body 801, a transverse shaft 803 and a longitudinal shaft 804 which are arranged in the commutator box body 801 through a bearing 802, wherein the transverse shaft 803 is provided with a transverse shaft bevel gear 805, the longitudinal shaft 804 is provided with a longitudinal shaft bevel gear 806, the transverse shaft bevel gear 805 is meshed with the longitudinal shaft bevel gear 806, the transverse shaft 803 is connected with an output shaft of the speed reducer 3 or a transverse shaft 803 of another adjacent cross commutator 8 through a coupling 4, and the longitudinal shaft 804 is connected with a worm 5113 of the worm gear screw lifter 51 through the coupling 4.

The railway locomotive and vehicle running gear inspection device described in this example further enables precise control of the elevation of the inspection work platform 1 and further ensures that the inspection work platform 1 is smoothly elevated in unison throughout.

Claims

1. A railway locomotive and a vehicle running gear inspection device, characterized in that: comprises a left inspection operation table surface and a right inspection operation table surface (1), a motor (2), a speed reducer (3), a coupling (4), a lifting system (5) and a pit (7); the pit (7) is a second-stage stepped pit, a steel rail upright post (11) is correspondingly arranged at the bottom of a first-stage stepped pit (71) positioned at the left side and the right side of the upper end of a second-stage stepped pit (72), a steel rail is fixed at the upper part of the steel rail upright post (11), and the railway locomotive and a vehicle running part are supported on the steel rail; 2-8 left second-stage stepped pits (9) which are uniformly distributed in a line are arranged between the left steel rail upright column (11) on the left side and the left edge of the first-stage stepped pit (71); 2-8 right second-stage stepped pits (10) which are uniformly distributed in a line are arranged between the right-side steel rail upright column (11) and the right edge of the first-stage stepped pit (71); a lifting mechanism is respectively fixed in the left second-stage stepped pit (9) and the right second-stage stepped pit (10), and the lifting mechanism is a worm gear lead screw lifter (51); the output shaft of the motor (2) is connected with the speed reducer (3), the output shaft of the speed reducer (3) is connected with the lifting system (5) through the coupler (4), the lifting system (5) is composed of a plurality of worm gear lead screw lifters (51) which are uniformly distributed in a line, and two adjacent worm gear lead screw lifters (51) are connected through the coupler (4) and the connecting rod (6); the top end of a lifting screw rod (5115) of each worm gear screw rod lifter (51) is connected with the bottom of the inspection operation table board (1), and the bottom of the lifting screw rod (5115) of each worm gear screw rod lifter (51) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10) below each worm gear screw rod lifter (51).

2. The railroad locomotive and vehicle running gear inspection device according to claim 1, wherein: the worm gear lead screw lifter (51) comprises a mounting seat (5111), a box body (5112), a worm (5113), a worm gear (5114) and a lifting lead screw (5115); the mounting seat (5111) is connected to the bottom of the box body (5112), and the mounting seat (5111) is mounted on the left second-stage stepped pit (9) or the right second-stage stepped pit (10) through bolts; the worm (5113) is horizontally arranged in the box body (5112), the worm wheel (5114) is vertically arranged in the box body, a threaded hole is arranged in the middle of the worm wheel (5114), the lifting screw rod (5115) is arranged in the threaded hole, one end of the worm (5113) is used as a power input end and is connected with the worm (5113) of the previous worm wheel screw rod lifter (51) through the coupler (4) and the connecting rod (6), the other end of the worm (5113) is used as a power output end and is connected with the worm (5113) of the next worm wheel screw rod lifter (51) through the coupler (4) and the connecting rod (6), the worm (5113) is meshed with a worm wheel (5114), the worm wheel (5114) is meshed with a lifting screw rod (5115), the top end of the lifting screw rod (5115) is connected with the bottom of the inspection operation table top (1) through a flange (5116), and the bottom of the lifting screw rod (5115) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10).

3. The railroad locomotive and vehicle running gear inspection device according to claim 2, wherein: the bottom of the mounting seat (5111) is also connected with a protective sleeve (5117) for protecting the bottom of the lifting screw rod (5115), and the protective sleeve (5117) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10).

4. A railway locomotive and a vehicle running gear inspection device, characterized in that: comprises a left inspection operation table surface and a right inspection operation table surface (1), a motor (2), a speed reducer (3), a coupling (4), a lifting system (5), a pit (7) and a cross commutator (8); the pit (7) is a second-stage stepped pit, a steel rail upright post (11) is correspondingly arranged at the bottom of a first-stage stepped pit (71) positioned at the left side and the right side of the upper end of a second-stage stepped pit (72), a steel rail is fixed at the upper part of the steel rail upright post (11), and the railway locomotive and a vehicle running part are supported on the steel rail; a left second-stage stepped pit (9) which is uniformly distributed into a plurality of rows and is provided with 2-8 in each row is arranged between the left steel rail upright column (11) on the left side and the left edge of the first-stage stepped pit (71); right second-stage stepped pits (10) which are uniformly distributed into a plurality of rows and 2-8 in each row are arranged between the right steel rail upright column (11) on the right side and the right edge of the first-stage stepped pit (71); a lifting mechanism is respectively fixed in the left second-stage stepped pit (9) and the right second-stage stepped pit (10), and the lifting mechanism is a worm gear lead screw lifter (51); the output shaft of the motor (2) is connected with the speed reducer (3), the output shaft of the speed reducer (3) is connected with an adjacent group of lifting systems (5) through the coupler (4) and the cross commutator (8), the group of lifting systems (5) is composed of a plurality of worm gear lead screw lifters (51) which are uniformly distributed in a line, and two adjacent worm gear lead screw lifters (51) are connected through the coupler (4) and the connecting rod (6); two groups of adjacent lifting systems (5) are connected through the coupler (4) and the cross commutator (8); the top end of a lifting screw rod (5115) of each worm gear screw rod lifter (51) is connected with the bottom of the inspection operation table board (1), and the bottom of the lifting screw rod (5115) of each worm gear screw rod lifter (51) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10) below each worm gear screw rod lifter (51).

5. The railroad locomotive and vehicle running gear inspection device of claim 4, wherein: the worm gear lead screw lifter (51) comprises a mounting seat (5111), a box body (5112), a worm (5113), a worm gear (5114) and a lifting lead screw (5115); the mounting seat (5111) is connected to the bottom of the box body (5112), and the mounting seat (5111) is mounted on the left second-stage stepped pit (9) or the right second-stage stepped pit (10) through bolts; the worm (5113) is horizontally installed in the box body (5112), the worm wheel (5114) is vertically installed, a threaded hole is formed in the middle of the worm wheel (5114), the lifting screw rod (5115) is installed in the threaded hole, one end of the worm (5113) serves as a power input end or is connected with an output shaft of the speed reducer (3) through the coupler (4) and the cross commutator (8), or is connected with the worm (5113) of the previous worm wheel screw rod lifter (51) through the coupler (4) and the connecting rod (6), the other end of the worm (5113) serves as a power output end and is connected with the worm (5113) of the next worm wheel screw rod lifter (51) through the coupler (4) and the connecting rod (6), the worm (5113) is meshed with the worm wheel (5114), the worm wheel (5114) is meshed with the lifting screw rod (5115), and the top end of the lifting screw rod (5115) is connected with the bottom of the inspection operation table top (1) through the flange (51, the bottom of the lifting screw rod (5115) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10).

6. The railroad locomotive and vehicle running gear inspection device of claim 5, wherein: the bottom of the mounting seat (5111) is also connected with a protective sleeve (5117) for protecting the bottom of the lifting screw rod (5115), and the protective sleeve (5117) extends into the left second-stage stepped pit (9) or the right second-stage stepped pit (10).

7. The railroad locomotive and vehicle running gear inspection device of claim 4, wherein: the cross commutator (8) comprises a commutator box body (801), a transverse shaft (803) and a longitudinal shaft (804) which are arranged in the commutator box body (801) through a bearing (802); the horizontal shaft (803) is provided with a horizontal shaft bevel gear (805), the vertical shaft (804) is provided with a vertical shaft bevel gear (806), the horizontal shaft bevel gear (805) is meshed with the vertical shaft bevel gear (806), and the horizontal shaft (803) and the vertical shaft (804) are respectively connected with an output shaft of the speed reducer (3) or a worm (5113) of the worm-gear lead screw lifter (51) through the coupler (4).