CN211333027U - 70% low floor vehicle axle box dismounting device - Google Patents
70% low floor vehicle axle box dismounting device Download PDFInfo
- Publication number
- CN211333027U CN211333027U CN201922386577.1U CN201922386577U CN211333027U CN 211333027 U CN211333027 U CN 211333027U CN 201922386577 U CN201922386577 U CN 201922386577U CN 211333027 U CN211333027 U CN 211333027U
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- dismounting
- axle box
- dismantling
- hydraulic pump
- connecting rods
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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
Technical Field
The utility model relates to a city railway vehicle bogie overhauls technical field, concretely relates to 70% low-floor vehicle axle box dismounting device.
Background
The wheel-set axle box positioning device is mostly applied to a railway vehicle bogie system, as shown in fig. 1 and 2, a sealing bearing 8 is adopted for the positioning device of a wheel-set axle box 7 of a motor car bogie of a Shenyang muddy south 70% low-floor tramcar, and four threaded holes 7-1 are formed in the outer side of the axle box 7 along the circumference of an outer ring of the sealing bearing 8.
When the bogie frame is repaired or overhauled, the axle box 7 needs to be disassembled from the sealed bearing 8. The disassembly is difficult due to the rust of the axle housing 7 at the axle end of part. In the traditional dismounting method, a nylon hammer is used for repeatedly striking the axle boxes 7 in multiple directions, the axle boxes 7 which are corroded more are corroded, each dismounting process needs 2-3 hours, the production efficiency is low, the working strength is high, and the risk of abrasion of the sealing bearing 8 exists due to uneven stress.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the existing method for retreating and unloading the axle box repeatedly has the defects of time and labor waste, large working strength and easy abrasion of a sealing bearing, the utility model provides a 70% low-floor vehicle axle box dismounting device.
The utility model provides a technical scheme as follows that technical problem took:
the axle box dismounting device for the 70% low-floor vehicle comprises a dismounting seat plate, two connecting rods, a plunger hydraulic pump, two long bolts, a dismounting baffle 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 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.
Drawings
Fig. 1 is a schematic view showing a structure in which a conventional axle box and a sealed bearing are assembled together.
Fig. 2 is a schematic exploded view of a conventional axle housing and a sealed bearing.
Fig. 3 is a schematic perspective view of the axle box detaching device for 70% low-floor vehicle according to the present invention.
Fig. 4 is an exploded view of the axle box detaching device for 70% low-floor vehicle according to the present invention.
Fig. 5 is an exploded view of the axle box detaching device for 70% low-floor vehicle according to another perspective of the present invention.
Fig. 6 is an application structure schematic diagram of the axle box dismounting device for 70% low-floor vehicle of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3 to 5, the axle box detaching device for 70% low floor vehicle of the present invention comprises: the dismounting seat plate 1, the two connecting rods 2, the plunger hydraulic pump 3, the two long bolts 4, the dismounting baffle 5 and the two sliding hammers 6 are arranged, 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 line 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 dismantling the preceding terminal surface of baffle 5, and the rear end face of dismantling bedplate 1 links firmly at plunger hydraulic pump 3's piston rod front end, and the external diameter of dismantling bedplate 1 equals the external diameter of the sealed bearing 8 outer lane of axle box 7.
As shown in fig. 6, when the axle box dismounting device for 70% low-floor vehicles of the present invention is used, the front ends of two long bolts 4 and two connecting rods 2 are inserted into four threaded holes 7-1 of the axle box 7 in a one-to-one correspondence manner, and are in threaded connection with the axle box 7; the plunger hydraulic pump 3 is started to apply thrust to the dismounting seat plate 1 through the piston rod, then the thrust is applied to the sealing bearing 8 through the dismounting seat plate 1, and meanwhile, the two sliding hammers 6 slide at the same frequency to apply knocking force to the axle box 7 and the sealing bearing 8, so that the axle box 7 can be rapidly disassembled from the sealing bearing 8 of the wheel pair.
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386577.1U CN211333027U (en) | 2019-12-26 | 2019-12-26 | 70% low floor vehicle axle box dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922386577.1U CN211333027U (en) | 2019-12-26 | 2019-12-26 | 70% low floor vehicle axle box dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211333027U true CN211333027U (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922386577.1U Active CN211333027U (en) | 2019-12-26 | 2019-12-26 | 70% low floor vehicle axle box dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211333027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833107A (en) * | 2020-12-31 | 2021-05-25 | 成都中车四方轨道车辆有限公司 | Automatic axle box bearing maintenance line and maintenance method |
| CN115091176A (en) * | 2022-07-25 | 2022-09-23 | 中车大连机车车辆有限公司 | Locomotive axle box spring dismounting device and dismounting method applied to railway site |
-
2019
- 2019-12-26 CN CN201922386577.1U patent/CN211333027U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112833107A (en) * | 2020-12-31 | 2021-05-25 | 成都中车四方轨道车辆有限公司 | Automatic axle box bearing maintenance line and maintenance method |
| CN115091176A (en) * | 2022-07-25 | 2022-09-23 | 中车大连机车车辆有限公司 | Locomotive axle box spring dismounting device and dismounting method applied to railway site |
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