CN112158227B

CN112158227B - Universal false trolley

Info

Publication number: CN112158227B
Application number: CN202010944516.7A
Authority: CN
Inventors: 李冰; 赵志敏; 石超; 刘春郑
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2023-05-16
Anticipated expiration: 2040-09-10
Also published as: CN112158227A

Abstract

The utility model provides a general false platform truck belongs to rail vehicle maintenance auxiliary stay device field, and it includes: the anti-collision buffer rubber block comprises an H-shaped framework formed by two side beams and cross beams, two small cross beams respectively connected with the end parts of the left side beam and the right side beam, two groups of wheel set mechanisms connected to the bottom of the framework through axle boxes, two replaceable rubber stacks, a replaceable cross beam core disc, two rubber stack fixing seats, four groups of car stops and four side beam end parts. The invention has the advantages of simple and practical structure, convenient operation, low cost, convenient popularization and the like, can temporarily replace a real train framework, and is used for realizing traction and transportation of a carriage body in a low-speed state in a railway section of a production factory, thereby greatly reducing the operation time of the traction and the production cost.

Description

Universal false trolley

Technical Field

The invention belongs to the field of auxiliary supporting devices for overhauling railway vehicles, and particularly relates to a universal false trolley.

Background

When a railway vehicle is maintained, the vehicle body is usually erected by a false car, and the existing false car structure is shown in fig. 1, and comprises an H-shaped framework main body consisting of two side beams 1 and a cross beam 2, two small cross beams 3 respectively connected with the end parts of the left side beam and the right side beam, and two groups of wheel pair mechanisms 4 connected with the bottom of the framework through axle boxes.

However, the H-shaped frame body of the existing false car has neither a height adjusting function nor a rotating butt joint function with the bottom of the car body, so that the H-shaped frame body can only serve as a foundation for temporarily supporting and specifying a car on a linear track, cannot adapt to the heights of the cars of different car types, and does not have the traction capability and parking function of a small-radius track, so that the H-shaped frame body needs to be manufactured into various height types to adapt to the maintenance requirements of different car types.

Disclosure of Invention

The invention provides a general false trolley, which aims to solve the technical problems that the existing false trolley can only serve as a foundation for temporarily supporting a specific carriage on a linear rail, has no height adjusting function and cannot be rotationally connected with the bottom of a trolley body, so that the existing false trolley cannot adapt to the heights of the carriages of different vehicle types, has poor universality and is high in manufacturing cost.

The technical scheme adopted for solving the technical problems is as follows:

a universal false trolley, comprising: the H-shaped framework is jointly formed by two side beams and a cross beam, two small end cross beams respectively connected with the left side beam and the right side beam, and two groups of wheel pair mechanisms connected to the bottom of the framework through axle boxes, and the H-shaped framework is characterized in that: the false trolley further comprises two replaceable rubber piles, a replaceable cross beam core disc, two rubber pile fixing seats, four groups of car stoppers and four side beam end anti-collision buffer rubber blocks, wherein each rubber pile fixing seat is correspondingly and fixedly connected to the upper end of the middle section of one side beam, and each replaceable rubber pile is correspondingly and fixedly connected to the upper end of one rubber pile fixing seat; the replaceable beam core disc is fixedly connected to the geometric center of the upper end face of the beam, and two ends of each side beam are fixedly connected with an anti-collision buffer rubber block at the end part of the side beam correspondingly; the vehicle stopper is detachably fixed to the outer side wall of the side member.

The replaceable rubber stack comprises a side bearing support, a laminated rubber gasket group, a support platform, four platform supporting rods, a height adjusting stud, an adjusting nut and a stud bearing, wherein the side bearing support is fixedly connected above the laminated rubber gasket group; the rubber pile fixing seat is rectangular, a fixing seat center through hole is formed in the center of the rubber pile fixing seat, and fixing seat blind holes are formed in four corners of the rubber pile fixing seat respectively; the support platform is rectangular, and the top end of each platform supporting rod is vertically and fixedly connected with one vertex angle of the support platform; the rotating axis of the stud bearing is perpendicular to the center of the lower bottom surface of the support platform, and the outer ring of the stud bearing is fixedly connected with the bottom surface of the support platform; the upper end of the height adjusting stud is coaxially and fixedly connected with the bearing inner ring of the stud bearing; the two adjusting nuts are connected with the lower section of the height adjusting stud through threads; the lower end of each platform supporting rod is correspondingly inserted into a corresponding fixing seat blind hole on the rubber pile fixing seat; the lower end of the height adjusting stud is inserted into a through hole in the center of the fixing seat, and the lower end face of the adjusting nut is abutted against the upper end face of the rubber pile fixing seat.

The anti-skid device consists of two wheel tread cushion blocks which are arranged in mirror symmetry, and the upper end face of each wheel tread cushion block is a wedge-shaped inclined plane.

The side wall of the wheel tread cushion block is provided with a threaded through hole and can be fixedly connected to a corresponding screw hole on the outer side wall of the side beam in a detachable mode through bolts, or hung on a hanging seat on the outer side wall of the side beam in a detachable mode through a steel wire rope penetrating through the threaded through hole.

The tread cushion block is of a double-layer structure, the wedge-shaped inclined surface of the top layer is a hard rubber layer, the bottom base layer is a permanent magnet layer, and the tread cushion block is fixedly adsorbed on the outer side wall of the side beam in a detachable mode through the permanent magnet base.

The cross beam is a parallel double-steel-pipe cross beam, and lifting lugs are respectively arranged on two sides of the middle section; the replaceable cross beam core disc comprises a bolt hole connecting disc and a core disc bearing, wherein the bolt hole connecting disc is fixedly connected with a bearing inner ring of the core disc bearing, and a bearing outer ring of the core disc bearing is vertically and fixedly connected with the geometric center of the cross beam.

The replaceable rubber stack is integrally formed by vulcanizing a plurality of layers of rubber gaskets, and the replaceable rubber stack comprises various alternative models with different height values.

The beneficial effects of the invention are as follows: the universal false trolley is characterized in that the false trolley is arranged on the height difference of a trolley body according to frameworks of different trolley types, a plurality of replaceable rubber stacks with the heights corresponding to the matching and a plurality of replaceable beam core plates with the heights corresponding to the matching are prefabricated, and fine adjustment of the vertical heights of the replaceable rubber stacks is realized by changing the positions of the height adjusting studs in the axial directions of the height adjusting studs, so that the false trolley has better adaptability. A can replace crossbeam core dish for realizing linking firmly with the corresponding interface in carriage bottom can make the carriage lower part wind core dish bearing and realize for the horizontal rotation of crossbeam geometric center to the design can improve false platform truck's adaptability by a wide margin, makes it can be through the circular arc track section that the diameter is less than 30m behind the support carriage, and then makes the false platform truck of general type improve minimum curve throughput when the operation of pulling, obtains more good mobility. The car stopper detachably fixedly connected to the outer side wall of the side beam can be taken down from the side beam when parking, and the upper section surfaces of the rails on the front side and the rear side of each wheel are not prevented from slipping. Before the train releases the brake, the stopper is retracted and re-attached to the outer side wall of the side beam to prevent loss. In the preferred scheme, the wheel tread cushion block with the permanent magnet layer adopted by the bottom base layer is easier to realize the fixation, adsorption and fixation with the rail or the side beam, and is convenient, quick, easy and labor-saving. The front end and the rear end of each side beam are correspondingly provided with an anti-collision buffer rubber block at the end of each side beam, so that collision of adjacent false trolleys in the traction process is avoided.

In addition, the universal false trolley has the advantages of simple and practical structure, convenient operation, low cost, convenient popularization and the like, can temporarily replace a real train framework, and is used for realizing traction and transportation of a carriage body in a low-speed state in a railway section of a production factory, thereby greatly reducing the operation time of the traction and the production cost.

Drawings

FIG. 1 is a schematic perspective view of a conventional false car;

FIG. 2 is a schematic perspective view of a generic false car of the present invention;

FIG. 3 is a schematic view of the explosive assembly of FIG. 2;

FIG. 4 is a top view of the universal false trolley of the present invention;

fig. 5 is a schematic view of the structure of the alternative rubber stack of the present invention in both the forward and reverse perspective.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings.

As shown in fig. 2 to 5, the universal type false car of the present invention comprises an H-shaped frame composed of two side beams 1 and a cross beam 2, two small end cross beams 3 respectively connecting the left and right side beams 1, and two wheel set mechanisms 4 connected to the bottom of the frame through axle boxes, and is characterized in that: the false trolley further comprises two replaceable rubber piles 5, a replaceable cross beam core disc 6, two rubber pile fixing seats 7, four groups of car stoppers 8 and four side beam end anti-collision buffer rubber blocks 9, wherein each rubber pile fixing seat 7 is correspondingly and fixedly connected to the upper end of the middle section of one side beam 1, and each replaceable rubber pile 5 is correspondingly and fixedly connected to the upper end of one rubber pile fixing seat 7; the replaceable beam core disc 6 is fixedly connected to the geometric center of the upper end face of the beam 2, and two ends of each side beam 1 are correspondingly and fixedly connected with an anti-collision buffer rubber block 9 at the end part of the side beam; the vehicle stopper 8 is detachably attached to the outer side wall of the side member 1.

The replaceable rubber stack 5 comprises a side bearing support 5-1, a laminated rubber gasket group 5-2, a support platform 5-3, four platform support rods 5-4, a height adjusting stud 5-5, an adjusting nut 5-6 and a stud bearing 5-7, wherein the side bearing support 5-1 is fixedly connected above the laminated rubber gasket group 5-2; the rubber pile fixing seat 7 is rectangular, a fixing seat center through hole 7-1 is formed in the center of the rubber pile fixing seat, and fixing seat blind holes 7-2 are formed in four corners of the rubber pile fixing seat 7 respectively; the support platform 5-3 is rectangular, and the top end of each platform supporting rod 5-4 is vertically and fixedly connected with one vertex angle of the support platform 5-3; the rotation axis of the stud bearing 5-7 is perpendicular to the center of the lower bottom surface of the support platform 5-3, and the outer ring of the stud bearing 5-7 is fixedly connected with the bottom surface of the support platform 5-3; the upper end of the height adjusting stud 5-5 is coaxially and fixedly connected with the bearing inner ring of the stud bearing 5-7; the two adjusting nuts 5-6 are connected with the lower section of the height adjusting stud 5-5 through threads; the lower end of each platform supporting rod 5-4 is correspondingly inserted into a corresponding fixing seat blind hole 7-2 on the rubber pile fixing seat 7; the lower end of the height adjusting stud 5-5 is inserted into a through hole 7-1 in the center of the fixing seat, and the lower end face of the adjusting nut 5-6 is abutted against the upper end face of the rubber pile fixing seat 7.

The wheel tread cushion block 8 is formed by two wheel tread cushion blocks 8-1 which are arranged in mirror symmetry, and the upper end face of the wheel tread cushion block 8-1 is a wedge-shaped inclined plane.

The side wall of the wheel tread cushion block 8-1 is provided with a threaded through hole and can be fixedly connected to a corresponding screw hole on the outer side wall of the side beam 1 in a detachable mode through bolts, or hung on a hanging seat on the outer side wall of the side beam 1 in a detachable mode through a steel wire rope penetrating through the threaded through hole.

The wheel tread cushion block 8-1 is of a double-layer structure, the wedge-shaped inclined surface of the top layer is a hard rubber layer, the bottom base layer is a permanent magnet layer, and the wheel tread cushion block 8-1 is fixedly connected to the outer side wall of the side beam 1 in a detachable manner through the permanent magnet base.

The beam 2 is a parallel double-steel-pipe beam, and lifting lugs 2-1 are respectively arranged on two sides of the middle section; the replaceable beam core disc 6 comprises a bolt hole connecting disc and a core disc bearing, wherein the bolt hole connecting disc is fixedly connected with the inner ring of the core disc bearing, and the outer ring of the core disc bearing is vertically and fixedly connected with the geometric center of the beam 2.

The replaceable rubber stack 5 is integrally formed by vulcanizing a plurality of layers of rubber gaskets, and the replaceable rubber stack 5 comprises various alternative models with different height values.

When the universal type false trolley is specifically applied, according to the height difference of frameworks of different vehicle types on the trolley body, a plurality of replaceable rubber stacks 5 with corresponding matched heights and a plurality of replaceable beam core plates 6 with corresponding matched heights are prefabricated. In practical application, the replaceable rubber stack 5 and the replaceable beam core disk 6 with corresponding height values are selected according to the height difference, and fine adjustment of the vertical height of the replaceable rubber stack 5 is realized by changing the position of the height adjusting stud 5-5 in the axial direction of the height adjusting stud 5-5, so that the replaceable rubber stack has better adaptability.

The connecting disc of the replaceable cross beam core disc 6 is used for being fixed with a corresponding interface at the bottom of a carriage through bolts, so that the carriage can horizontally rotate relative to the geometric center of the cross beam 2 through a core disc bearing at the lower part of the replaceable cross beam core disc 6.

The car stopper 8 detachably attached to the outer side wall of the side sill 1 can be removed from the side sill when parking, and is not so hard to be attached to the upper section surfaces of the rails on the front and rear sides of each wheel, preventing the occurrence of a car sliding situation. Before the train releases the brake, the stopper 8 is retracted and reattached to the outer side wall of the side sill 1, preventing loss. In the preferred scheme, the wheel tread cushion block 8-1 with the permanent magnet layer adopted by the bottom base layer is easier to realize the fixation, adsorption and fixation with the rail or the side beam, and is convenient, quick, easy and labor-saving.

Claims

1. The utility model provides a general false trolley, its includes the H type framework that constitutes by two curb girder (1) and crossbeam (2) jointly, two tip little crossbeams (3) of connecting left and right curb girder (1) respectively and two sets of wheel pair mechanism (4) that are connected in the framework bottom through the axle box, characterized in that: the false trolley further comprises two replaceable rubber piles (5), a replaceable cross beam core disc (6), two rubber pile fixing seats (7), four groups of car stoppers (8) and four side beam end anti-collision buffer rubber blocks (9), wherein each rubber pile fixing seat (7) is correspondingly and fixedly connected to the upper end of the middle section of one side beam (1), and each replaceable rubber pile (5) is correspondingly and fixedly connected to the upper end of one rubber pile fixing seat (7); the replaceable beam core disc (6) is fixedly connected to the geometric center of the upper end face of the beam (2), and two ends of each side beam (1) are fixedly connected with an anti-collision buffer rubber block (9) at the end part of the side beam correspondingly; the vehicle stopper (8) is detachably fixedly connected to the outer side wall of the side beam (1);

the replaceable rubber pile (5) comprises a side bearing support (5-1), a laminated rubber gasket group (5-2), a support platform (5-3), four platform support rods (5-4), a height adjusting stud (5-5), an adjusting nut (5-6) and a stud bearing (5-7), wherein the side bearing support (5-1) is fixedly connected above the laminated rubber gasket group (5-2); the rubber pile fixing seat (7) is rectangular, a fixing seat center through hole (7-1) is formed in the center of the rubber pile fixing seat, and fixing seat blind holes (7-2) are formed in four corners of the rubber pile fixing seat (7) respectively; the support platform (5-3) is rectangular, and the top end of each platform supporting rod (5-4) is vertically and fixedly connected with one vertex angle of the support platform (5-3); the rotation axis of the stud bearing (5-7) is perpendicular to the center of the lower bottom surface of the support platform (5-3), and the outer ring of the stud bearing (5-7) is fixedly connected with the bottom surface of the support platform (5-3); the upper end of the height adjusting stud (5-5) is coaxially and fixedly connected with the bearing inner ring of the stud bearing (5-7); the two adjusting nuts (5-6) are in threaded connection with the lower ends of the height adjusting studs (5-5); the lower end of each platform supporting rod (5-4) is correspondingly inserted into a corresponding fixing seat blind hole (7-2) on the rubber pile fixing seat (7); the lower end of the height adjusting stud (5-5) is inserted into a through hole (7-1) in the center of the fixing seat, and the lower end face of the adjusting nut (5-6) is abutted against the upper end face of the rubber pile fixing seat (7).

2. The universal false trolley of claim 1, wherein: the anti-skid device (8) is composed of two wheel tread cushion blocks (8-1) which are arranged in mirror symmetry, and the upper end face of each wheel tread cushion block (8-1) is a wedge-shaped inclined plane.

3. The universal false trolley of claim 2, wherein: the side wall of the wheel tread cushion block (8-1) is provided with a threaded through hole and can be detachably fixedly connected to a corresponding screw hole on the outer side wall of the side beam (1) through bolts, or detachably hung on a hanging seat on the outer side wall of the side beam (1) through a steel wire rope penetrating through the threaded through hole.

4. The universal false trolley of claim 2, wherein: the tread cushion block (8-1) is of a double-layer structure, the wedge-shaped inclined surface of the top layer is a hard rubber layer, the bottom base layer is a permanent magnet layer, and the tread cushion block (8-1) is fixedly connected to the outer side wall of the side beam (1) in a detachable manner through the permanent magnet base.

5. The universal false trolley of claim 3 or 4, wherein: the beam (2) is a parallel double-steel-pipe beam, and lifting lugs (2-1) are respectively arranged on two sides of the middle section; the replaceable cross beam core disc (6) comprises a bolt hole connecting disc and a core disc bearing, the bolt hole connecting disc is fixedly connected with the inner ring of the core disc bearing, and the outer ring of the core disc bearing is vertically and fixedly connected with the geometric center of the cross beam (2).

6. The universal false trolley of claim 5, wherein: the replaceable rubber stack (5) is integrally formed by vulcanizing a plurality of layers of rubber gaskets, and the replaceable rubber stack (5) comprises various alternative models with different height values.