CN204417038U - A kind of transition components for rolling stock wheel shaft - Google Patents

Abstract

The utility model discloses a conversion assembly for a railway vehicle wheel shaft. The conversion assembly includes a wheel shaft support seat and a jack. The jack drives the wheel shaft support seat to lift or drop the wheel shaft. The wheel shaft support seat is used for winding The center of the jack rotates and drives the axle to rotate. The utility model utilizes the conversion assembly to jack up and rotate the wheel shaft, so that the wheel shaft can be removed conveniently. The utility model is suitable for on-site emergency repair, reduces the work intensity of emergency repair personnel, and improves the efficiency of emergency repair.

Description

A conversion assembly for a railway vehicle axle

technical field

The utility model relates to maintenance equipment for railway vehicles, in particular to a conversion assembly for railway vehicle axles.

Background technique

The wheel axle is a very important key part of the railway vehicle. Its main function is to ensure the operation and steering of the railway vehicle on the rail, bear all the static load and dynamic load from the railway vehicle, and transfer the load to the track. Smoothly generated loads are transmitted to the various components of the railway vehicle; in addition, the braking of the railway vehicle is also achieved through the axle. The technical state of the axle directly affects the running speed and driving safety of the railway vehicle. The main components of the axle include axles, wheels, bearings and other accessories. Common faults mainly include: tread circumferential wear, peeling, scratches, local depression, wheel rim wear, defect and wheel cracks, axle cracks, bearing cracks, hot shafts, etc. Once the above-mentioned wheel axle failures occur on railway vehicles, they will stop halfway, affect the normal traffic order, or endanger traffic safety, cause railway traffic accidents, and cause serious losses to the country and people's lives and properties.

When a wheel shaft failure occurs, the vehicle needs to replace the wheel shaft on site. There are two main ways to replace the wheel shaft. One is to use a rail crane or a truck crane to lift the wheel shaft in and out. This operation method has higher requirements for the on-site environment: The field must be open, without catenary, etc., which is difficult to implement in actual rescue. The second is that when manual replacement is adopted, 8-12 emergency repair team members need to be organized to use crowbars and ropes to lift the axle into and out of the operation line. The disadvantages of this kind of operation method are also very obvious: more people are needed, and the cooperation ability and physical quality of the people are high; it is time-consuming and labor-intensive, and the timeliness of emergency repair is not high; Damage to axle parts, bumping personnel).

Therefore, it is necessary to design a conversion assembly for railway vehicle axles that is suitable for on-site emergency repairs, reduces the work intensity of emergency repair personnel, and improves emergency repair efficiency.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a conversion assembly for railway vehicle axles which is suitable for on-site emergency repairs, reduces the work intensity of emergency repair personnel, and improves the efficiency of emergency repairs.

The technical scheme of the utility model provides a conversion assembly for a railway vehicle wheel shaft, the conversion assembly includes a wheel shaft support seat and a jack, the jack drives the wheel shaft support seat to lift or drop the wheel shaft, and the wheel shaft support seat is used to Rotate around the center of the jack and drive the axle to rotate.

Preferably, the axle support seat includes a long axle support groove and a cylindrical jack connection seat connected to the center of the bottom of the axle support groove, the axle support groove is used to support the axle of the axle, so The piston rod of the jack is inserted into the jack connection seat, and the piston rod is in clearance fit with the jack connection seat.

Preferably, the cross section of the axle support groove is U-shaped or V-shaped.

Preferably, the conversion assembly further includes a jack fixing base, the jack fixing base includes a bottom plate and a fixing frame, the fixing frame is installed above the bottom plate, and the fixing frame is used for inserting into the base of the jack.

Preferably, the fixing frame is surrounded by three angle steels to form a rectangular slot with three sides closed and one side open.

Preferably, the jack fixing base further includes a movable handle installed on the bottom plate.

After adopting the technical solution, the utility model has the following beneficial effects: the utility model utilizes the conversion assembly to jack up and rotate the wheel shaft, so that the wheel shaft can be removed conveniently. The utility model is suitable for on-site emergency repair, reduces the work intensity of emergency repair personnel, and improves the efficiency of emergency repair.

Description of drawings

Fig. 1 is the front view of conversion assembly in one embodiment of the utility model;

Fig. 2 is a side view of the conversion assembly in an embodiment of the utility model;

Fig. 3 is a top view of the conversion assembly in an embodiment of the present invention;

Fig. 4 is a front view of the axle support seat in an embodiment of the present invention;

Fig. 5 is a side view of the axle support seat in an embodiment of the present invention;

Fig. 6 is a front view of the jack holder in an embodiment of the present invention;

Fig. 7 is a side view of the jack holder in an embodiment of the present invention;

Fig. 8 is a top view of the jack fixing seat in an embodiment of the present invention.

Reference sign comparison table:

2-Axle 3-Rail

11-Conversion components 21-Axle 22-Wheels

111-Axle support seat 111a-Axle support groove 111b-Jack connection seat

112-jack 112a-piston rod 112b-base

113-jack fixing seat 113a-bottom plate 113b-fixing frame

113c-Active handle

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 1-3, Fig. 1-3 shows a schematic structural diagram of a conversion component. The conversion assembly 11 includes an axle supporting seat 111 and a jack 112. The jack 112 drives the axle supporting seat 111 to lift or drop the axle 2. The axle supporting seat 111 is used to rotate around the center of the jack 112 and drive the axle 2 to rotate. The conversion assembly 1 is used to jack up and rotate the axle 2. After the axle 2 is lifted and rotated by the conversion assembly 11, the axle 2 can be transported out by other equipment.

As shown in FIG. 1 , the axle 2 includes an axle 21 and wheels 22 , and the axle 21 is used to connect the two wheels 22 . Under normal circumstances, the two wheels 22 are erected on the two rails 3 respectively. When the axle 2 fails, the axle 2 needs to be replaced and the axle 2 needs to be removed from the rail 3 . When using the conversion assembly 11, at first the conversion assembly 11 is placed directly below the axle 21 of the wheel axle 2, the center of the conversion assembly 11 is aligned with the center of the axle 21, and now the jack 112 is inserted into the wheel axle support seat 111; then, as As shown in Figure 1-2, the jack 112 is extended upwards, the jack 112 jacks up the axle support seat 111, and the axle support seat 111 lifts the axle 21 of the wheel axle 2, so that the wheel 22 is separated from the rail 3; then, the axle support seat 111 Rotate 90° around the center of the jack 112, and drive the wheel shaft 2 to also rotate 90°, after the wheel shaft 2 rotates 90°; finally, the jack 112 is retracted downward, the wheel shaft supporting seat 111 falls back, and the wheel shaft 2 also falls back together, now you can Place the axle 2 on other equipment, for example on another track (not shown), and remove the axle 2 along the track.

Due to the limitation of the section terrain and the conditions of the train inspection operation site, the breakdown repair vehicle cannot approach the rails in some environments, and the lifting equipment cannot work smoothly due to the external environment. The conversion assembly of the utility model can be used in conjunction with a breakdown repair vehicle, and its main function is to use the conversion assembly 11 to jack up the wheel shaft and transfer the wheel shaft 2 to the designated working lane, or transfer the wheel shaft 2 to a place where the lifting equipment can be deployed, and quickly Complete the replacement operation of the faulty wheel axle of the railway vehicle quickly; in case of emergency, the wheel axle 2 can also be quickly cleared out of the outside of the line by means of the conversion assembly 11, so as to ensure the rapid opening of the line and realize the purpose of rapid repair and rapid recovery of railway traffic accidents.

In this embodiment, as shown in FIGS. 4-5 , the axle support seat 111 includes an elongated axle support groove 111 a and a cylindrical jack connection seat 111 b connected at the center of the bottom of the axle support groove 111 a. As shown in FIG. 2 , the axle support groove 111 a is used to support the axle 21 of the axle 2 , the piston rod 112 a of the jack 112 is inserted into the jack connecting seat 111 b , and the piston rod 112 a is loosely matched with the jack connecting seat 111 b. When jacking up the axle 2, the longitudinal direction of the elongated axle support groove 111a is arranged along the axial direction of the axle 21. After the wheel shaft 2 is jacked up, the jack 112 remains motionless, and only the wheel shaft support seat 111 rotates at this time. Because the piston rod 112a and the jack connection seat 111b are clearance-fitted, the wheel shaft support seat 111 can rotate easily and simultaneously drive the wheel shaft 2 to rotate.

In this embodiment, as shown in FIG. 5 , the cross section of the axle support groove 111 a is U-shaped, and the axle support groove 111 a is a rectangular groove. This groove type can be used for axles 21 of different sizes.

Preferably, the cross-section of the axle support groove 111a can also be V-shaped, and can also match axles 21 of different sizes. Of course, the mating surface of the axle support groove 111a and the axle 21 can also be arc-shaped, but this shape can only match the axle 21 of fixed size. 111a.

In this embodiment, as shown in FIGS. 1-3 , the conversion assembly 11 further includes a jack fixing seat 113 . As shown in FIGS. 6-8 , the jack mount 113 includes a bottom plate 113a and a fixing frame 113b , the fixing frame 113b is installed above the bottom plate 113a , and the fixing frame 113b is used for inserting into the base 112b of the jack 112 . The jack fixing seat 113 is used for fixing and supporting the jack. When in use, the jack fixing seat 113 is placed on a flat ground, and then the jack 112 is inserted. The area of the bottom plate 113a is greater than the area of the fixed frame 113b, and the bottom plate 113a is in contact with the ground, which can firmly support the jack 112, and disperse the pressure of the jack 112, so as to prevent the jack 112 from falling into the bottom due to excessive pressure when the jack 112 is lifted. in the ground. The fixing frame 113b is used to fix the jack 112 to prevent the jack 112 from shaking.

Preferably, the conversion assembly 11 may also not include the jack fixing base 113, and the jack 112 is directly placed on a flat and firm ground.

In this embodiment, as shown in FIG. 8 , the fixing frame 113b is surrounded by three angle steels to form a rectangular groove with three sides closed and one side open. The open side is used to facilitate the entry of the base 112b of the jack 112, and the other three closed sides are used to define the base 112b.

In this embodiment, as shown in FIGS. 6-8 , the jack fixing base 113 also includes a movable handle 113c installed on the bottom plate. The movable handle 113c includes a circular tube, two steel bars and two circular rings fixedly connected with the bottom plate 113a, one end of the steel bar is inserted into the circular ring, and the other end is connected with the circular tube. The movable handle 113c is movably connected with the bottom plate 113a, so that the jack holder 113 can be extracted and carried conveniently.

The utility model has the following advantages:

(1) Reduce the working intensity of the emergency repair team and reduce the investment of personnel. The number of operating personnel has been reduced from more than 8 to 4, saving manpower input;

(2) Improving the efficiency of emergency repair, shortening the working time from more than 2 hours to 40 minutes;

(3) Reduce manual operation links, eliminate secondary safety hazards, and make the operation process safe and controllable;

(4) Reduced dependence on large-scale machinery and equipment, avoiding the expensive cost of using large-scale lifting equipment, and no additional costs will be incurred when the device is used;

(5) The diversification of emergency repair means has been realized, and the emergency response ability of the repair team in complex situations has been improved;

(6) Low cost, light weight, simple structure, easy assembly, safe operation and good practicability.

What has been described above is only the principle and preferred embodiments of the present utility model. It should be pointed out that for those skilled in the art, several other modifications can be made on the basis of the principle of the utility model, which should also be regarded as the protection scope of the utility model.

Claims (6)

1. the transition components for rolling stock wheel shaft, it is characterized in that, described transition components comprises wheel shaft supporting seat and jack, described jack drives described wheel shaft supporting seat jack-up or falls wheel shaft, and described wheel shaft supporting seat is used for the center rotating around described jack and drives described wheel shaft to rotate.

2. transition components according to claim 1, it is characterized in that, described wheel shaft supporting seat comprises the wheel shaft support slot of strip shape and is connected to the columnar jack Connection Block of described wheel shaft support slot bottom centre, described wheel shaft support slot is for supporting the axletree of described wheel shaft, the piston rod of described jack is inserted in described jack Connection Block, described piston rod and described jack Connection Block free-running fit.

3. transition components according to claim 2, is characterized in that, the cross-sectional plane of described wheel shaft support slot is U-shaped or V-type.

4. transition components according to claim 1, it is characterized in that, described transition components also comprises jack permanent seat, and described jack permanent seat comprises base plate and fixed mount, described fixed mount is arranged on the top of described base plate, and described fixed mount is for inserting the base of described jack.

5. transition components according to claim 4, is characterized in that, described fixed mount is surrounded by three angle steel that three side sealing closes, the rectangular channel of an opening.

6. transition components according to claim 4, is characterized in that, described jack permanent seat also comprises the movable handle be arranged on described base plate.