CN204381401U - Lathe used for machining in-situ locomotive wheel inside axle box clamping device - Google Patents

Abstract

The utility model discloses a clamping fixture for the inner axle box of a non-falling wheel turning bed, which comprises: a sliding seat, an inner axle box connecting seat and a connecting piece, wherein the sliding seat slides with the turning bed body. Matching connection, the inner axle box connecting seat is installed and connected with the train inner axle box, and the connecting piece is movably connected with the above-mentioned sliding seat and the inner axle box connecting seat, so as to ensure that the inner axle box connecting seat rotates around the connecting piece relative to the sliding seat. Compared with the prior art, the utility model has the beneficial effects as follows: 1. The utility model does not need to disassemble the clamping fixture when replacing the processing wheel set, which improves the working efficiency of the inner axle box wheel set clamping, and is convenient and fast to operate; 2. , avoiding the potential safety hazards caused by the complex structure and many components of the existing clamping fixture.

Description

Clamping Fixture for Inner Axle Box of Non-falling Wheel Turning Bed

technical field

The utility model relates to a clamping fixture for an inner axle box, which belongs to the technical field of subway train maintenance equipment, in particular to an inner axle box clamping fixture for a non-falling wheel turning bed.

Background technique

Wheelset axle boxes of subway trains are divided into two types: inner axle boxes and outer axle boxes. The bed body of the turning bed needs to pull the inner axle box of the train wheel set through the clamping fixture, and give the inner axle box a downward pulling force to ensure the force balance of the wheel set, so that the center of the wheel set remains stable during the processing process. In the production task of turning repairing and processing, the clamping fixture of the original non-falling wheel turning bed needs to be disassembled when replacing the processing wheel set, which has the defect of low work efficiency and is accompanied by potential safety hazards, specifically:

1. During the disassembly process, there will be safety hazards that the bolts are not completely connected with the clamping holes of the inner axle box, and the connecting block falls and hurts fingers or causes the bolts to collide with the tool holder and damage the tool holder;

2. When clamping, it is necessary to hold the connecting block by hand to fasten the bolts, which is difficult to align and the efficiency is low;

3. Due to the interference with the train body, the fixture needs to be completely dismantled when replacing the processed wheel set, and the fixture must be reinstalled when the next wheel set is repaired, resulting in low work efficiency.

Utility model content

The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art, and provide a clamping fixture for the inner axle box of the non-falling wheel turning bed. The clamping fixture is directly installed on the turning bed body, and can be , no disassembly is required, the operation is simple and fast, the efficiency is high, and the potential safety hazards existing in the existing clamping fixture can be avoided.

In order to achieve the above object, the utility model is realized according to the following technical solutions:

A clamping fixture for the inner axle box of a non-falling wheel turning bed, which includes: a sliding seat, an inner axle box connecting seat and a connecting piece, wherein the sliding seat is slidingly connected with the turning bed body, and the The inner axle box connecting seat is installed and connected with the inner axle box of the train, and the connecting piece movably connects the above-mentioned sliding seat and the inner axle box connecting seat to ensure that the inner axle box connecting seat rotates around the connecting piece relative to the sliding seat.

Further, one side of the sliding seat is provided with a linear guide groove slidingly connected with the turning bed body, and the opposite side is provided with a "U"-shaped sliding seat connection structure extending outward.

Further, the main part of the inner axle box connecting seat is connected with the inner axle box of the train by bolts, and one end of the main part is provided with a "U" shape that extends outward and is interlaced with the above-mentioned "U" shaped sliding seat connection structure. The connection structure of the connection seat.

Further, the connecting piece includes a pin rod and a nut, wherein the pin rod transversely passes through the "U"-shaped sliding seat connection structure and the "U"-shaped connecting seat connection structure, and is screwed and fixed with the nut, and the sliding seat and the inner The axle box connecting seat is hinged and fitted.

Compared with the prior art, the utility model has the beneficial effects as follows:

1. The utility model does not need to disassemble the clamping fixture when replacing the processing wheel set, which improves the working efficiency of the inner axle box wheel set clamping, and the operation is convenient and fast;

2. The potential safety hazards caused by the complex structure and many components of the existing clamping fixture are avoided.

In order to understand the utility model more clearly, the specific implementation of the utility model will be described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural view of the slider in Fig. 1 .

Fig. 3 is a schematic structural view of the inner axle box connecting seat in Fig. 1 .

Fig. 4 is a schematic structural diagram of the connector in Fig. 1 .

Detailed ways

As shown in Figure 1, the clamping fixture for the inner axle box of the non-falling wheel turning bed of the present invention includes: a sliding seat 1, an inner axle box connecting seat 2 and a connecting piece 3, wherein the sliding Seat 1 is slidingly connected with the lathe bed body, the inner axle box connecting seat 2 is installed and connected with the inner axle box of the train, and the connecting piece 3 is movably connected with the above-mentioned sliding seat 1 and inner axle box connecting seat 2 to ensure that the inner axle box The connecting base 2 rotates relative to the sliding base 1 around the connecting piece 3 .

As shown in FIG. 2 , one side of the above-mentioned sliding seat 1 is provided with a linear guide groove 11 slidingly connected with the turning bed body, and the opposite side is provided with a "U"-shaped sliding seat connection structure 12 extending outward.

As shown in Figure 3, the main part 21 of the above-mentioned inner axle box connection seat 2 is connected with the inner axle box of the train by bolts, and one end of the main part is provided with an outwardly extending and interlaced connection structure with the above-mentioned "U"-shaped sliding seat connection structure. The "U" shaped connecting seat connection structure 22.

As shown in Figure 4, the above-mentioned connector 3 includes a pin rod 31 and a nut 32, wherein the pin rod 31 passes through the "U"-shaped sliding seat connection structure and the "U"-shaped connecting seat connection structure and is connected to the nut 32. Connecting and fixing, the sliding seat and the connecting seat of the inner axle box are hingedly matched to realize the rotation of the connecting seat of the inner axle box between the 0° station and the 90° station.

The working principle of the utility model is as follows: when the inner axle box wheel pair is being clamped, the operator turns the inner axle box connecting seat from the 0° station to the 90° station, and uses bolts to connect the inner axle box to the inner axle box. Connect the axle box connecting seat to complete the clamping work; when the wheel set is repaired, remove the bolts, and then turn the inner axle box connecting seat from the 90° position to the 0° position to complete the unclamping work, which is convenient and fast.

The utility model is not limited to the above-mentioned embodiment, if the various changes or modifications of the utility model do not depart from the spirit and scope of the utility model, if these changes and modifications belong to the claims of the utility model and within the equivalent technical scope, Then the utility model is also intended to include these modifications and variations.

Claims (4)

1. A clamping fixture for the inner axle box of a non-falling wheel turning bed, which is characterized in that it includes: a sliding seat, an inner axle box connecting seat and a connecting piece, wherein the sliding seat is slidingly matched with the turning bed body Connection, the inner axle box connecting seat is installed and connected with the inner axle box of the train, and the connecting piece movably connects the above-mentioned sliding seat and the inner axle box connecting seat to ensure that the inner axle box connecting seat rotates around the connecting piece relative to the sliding seat. 2. According to the clamping fixture for the inner axle box of the non-falling wheel turning bed according to claim 1, it is characterized in that: one side of the sliding seat is provided with a linear guide groove that is slidingly connected with the turning bed body, and the opposite side is provided with a The "U" shaped sliding seat connection structure extending outward. 3. According to the clamping fixture for the inner axle box of the non-falling wheel turning bed according to claim 2, it is characterized in that: the main part of the inner axle box connecting seat and the inner axle box of the train are connected by bolts, and one end of the main part is provided with a A "U"-shaped connection seat connection structure that extends outward and intersects with the above-mentioned "U"-shaped sliding seat connection structure. 4. The clamping fixture for the inner axle box of the non-falling wheel turning bed according to claim 3, characterized in that: the connecting piece includes a pin rod and a nut, wherein the pin rod passes through the "U"-shaped sliding seat connection structure transversely After connecting the structure with the "U"-shaped connecting seat, it is screwed and fixed with the nut, and the sliding seat and the connecting seat of the inner axle box are hingedly matched.