CN211333027U - 70% low floor vehicle axle box dismounting device - Google Patents

Abstract

The axle box dismounting device for the 70% low-floor vehicle relates to the technical field of urban railway vehicle bogie maintenance, and comprises a dismounting seat plate, two connecting rods, a plunger hydraulic pump, two long bolts, a dismounting baffle plate and two sliding hammers, wherein the front ends of the two connecting rods are provided with threads, and the two connecting rods sequentially penetrate through two through holes on one diagonal line of the two sliding hammers and the dismounting baffle plate in a one-to-one correspondence manner; the two long bolts penetrate through the two through holes on the other diagonal line of the disassembly baffle in a one-to-one correspondence manner; the cylinder body of plunger hydraulic pump links firmly on the preceding terminal surface of dismantling the baffle, and the rear end face of dismantling the bedplate links firmly at the piston rod front end of plunger hydraulic pump, and the external diameter of dismantling the bedplate equals the external diameter of sealed bearing outer lane. The utility model has the advantages that: by utilizing the dismounting device, the axle box can be quickly disassembled from the bearing under the premise of not damaging the sealing bearing, the overhauling time is shortened, the working strength is reduced, and the overhauling quality is improved. The device simple structure, convenient operation has improved maintenance efficiency greatly.

Description

70% Low Floor Vehicle Axlebox Removal Device

technical field

The utility model relates to the technical field of overhaul of urban railway vehicle bogies, in particular to a 70% low-floor vehicle axle box dismantling device.

Background technique

The wheel set axle box positioning device is mostly used in the rail vehicle bogie system. As shown in Figure 1 and Figure 2, the positioning device of the wheel set axle box 7 of the motor car bogie of the Shenyang Hunnan 70% low-floor tram adopts sealed bearings 8. Four threaded holes 7-1 are provided on the outer side of the axle box 7 along the circumference of the outer ring of the sealed bearing 8.

When the bogie frame is repaired or overhauled, etc., the axle box 7 must be disassembled from the sealed bearing 8 to get off the vehicle. Due to the corrosion of the axle box 7 at part of the shaft end, it is difficult to disassemble. The traditional disassembly method is to use a nylon hammer to repeatedly knock the axle box 7 in multiple directions, and the axle box 7 with more corrosion will consume 2 to 3 hours for each disassembly, with low production efficiency and high work intensity. There is a risk of wear of the sealed bearing 8 .

Utility model content

In order to solve the technical problems that the existing method of repeatedly knocking the axle box for unloading is time-consuming and labor-intensive, the work intensity is high, and the sealed bearing is easily worn, the utility model provides a 70% low-floor vehicle axle box dismounting device.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A 70% low-floor vehicle axle box removal device, which includes a removal seat plate, two connecting rods, a plunger hydraulic pump, two long bolts, a removal baffle plate and two sliding hammers, the front ends of the two connecting rods are provided with threads, The two connecting rods pass through the two slide hammers and the two through holes on one diagonal of the dismantling baffle in a one-to-one correspondence; the two long bolts pass through the two diagonals on the other diagonal of the disassembling baffle. a through hole; the cylinder body of the plunger hydraulic pump is fixedly connected to the front end face of the dismantling baffle plate, the rear end face of the dismantling seat plate is fixedly connected to the front end of the piston rod of the plunger hydraulic pump, and the outer diameter of the dismantling seat plate is equal to the outer diameter of the sealing bearing. The outer diameter of the circle.

The beneficial effects of the utility model are: using the dismounting device, the axle box can be quickly disassembled and dismounted from the bearing without damaging the sealed bearing, which shortens the maintenance time, reduces the work intensity and improves the maintenance quality. The device is simple in structure, convenient in operation, and greatly improves the maintenance efficiency.

Description of drawings

FIG. 1 is a schematic structural diagram of an existing axle box and a sealed bearing assembled together.

Fig. 2 is a schematic diagram of the structure of the existing axle box and the sealed bearing after being decomposed.

FIG. 3 is a schematic three-dimensional structure diagram of the 70% low-floor vehicle axle box dismantling device of the present invention.

4 is a schematic diagram of the explosion structure of the 70% low-floor vehicle axle box dismantling device of the present invention.

5 is a schematic diagram of the explosion structure from another perspective of the 70% low-floor vehicle axle box dismantling device of the present invention.

6 is a schematic diagram of the application structure of the 70% low-floor vehicle axle box dismantling device of the present invention.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in FIGS. 3 to 5 , the 70% low-floor vehicle axle box disassembly device of the present invention includes: disassembling seat plate 1, two connecting rods 2, plunger hydraulic pump 3, two long bolts 4, disassembling baffle plate 5 and two sliding hammers 6, the front ends of the two connecting rods 2 are provided with threads, and the two connecting rods 2 pass through the two sliding hammers 6 and the two connecting rods on a diagonal line of the dismantling baffle 5 in a one-to-one correspondence in sequence. The two long bolts 4 pass through the two through holes on the other diagonal line of the dismantling baffle 5 in one-to-one correspondence; The rear end surface of the plate 1 is fixedly connected to the front end of the piston rod of the plunger hydraulic pump 3 .

As shown in FIG. 6 , when the 70% low-floor vehicle axle box dismantling device of the present invention is used, the front ends of the two long bolts 4 and the two connecting rods 2 are inserted into the four threaded holes 7 of the axle box 7 in one-to-one correspondence. 1, and threadedly connected with the axle box 7; start the plunger hydraulic pump 3, so that it applies a thrust to the dismantling seat plate 1 through the piston rod, and then applies a thrust to the sealed bearing 8 through the dismantling seat plate 1, and at the same time, through the same frequency sliding The two sliding hammers 6 apply a beating force to the axle box 7 and the sealed bearing 8, so that the axle box 7 can be quickly disassembled from the sealed bearing 8 of the wheelset.

Claims (1)

1.70% low-floor vehicle axle box dismounting device, which is characterized by comprising a dismounting seat plate (1), two connecting rods (2), a plunger hydraulic pump (3), two long bolts (4), a dismounting baffle (5) and two sliding hammers (6), wherein the front ends of the two connecting rods (2) are provided with threads, and the two connecting rods (2) sequentially penetrate through two through holes on one diagonal of the two sliding hammers (6) and the dismounting baffle (5) in a one-to-one correspondence manner; the two long bolts (4) correspondingly penetrate through the two through holes on the other diagonal line of the dismounting baffle (5) one by one; the cylinder body of plunger hydraulic pump (3) links firmly on the preceding terminal surface of dismantling baffle (5), and the rear end face of dismantling bedplate (1) links firmly at the piston rod front end of plunger hydraulic pump (3), and the external diameter of dismantling bedplate (1) equals the external diameter of sealed bearing (8) outer lane.

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