CN220481598U - Large-torque dismounting device for rail transit vehicle - Google Patents

Abstract

The utility model discloses a large-torque dismounting device for a rail transit vehicle, and belongs to the technical field of machinery. Including sleeve and key connection in telescopic conversion adapter, still including locating conversion adapter's terminal carrier part runs through carrier part and key connection in conversion adapter's terminal torque multiplier, and key connection in torque multiplier's tip ratchet handle, wherein, carrier part includes the bottom plate that bottom plate central authorities are equipped with the through-hole, and it is used for conversion adapter to insert to and the mutual mirror image is located two at least groups backup pad at the both ends of bottom plate. The utility model uses the walking part structure as a bearing fulcrum and is matched with the bearing part, so that the lifting of external force is not needed, and a diagonal direction-to-transverse cutting method is adopted in the putting-in and taking-out process, thereby achieving the effect of stable bearing without loosening, and therefore, the pre-loosening operation of the bolt can be completed by only one operator.

Description

Large-torque dismounting device for rail transit vehicle

Technical Field

The utility model relates to the technical field of machinery, in particular to a large-torque dismounting device for a rail transit vehicle.

Background

In the overhaul process of the rail transit vehicle frame, the vehicle body and the running part are required to be separated, and one very key bolt for connecting the vehicle body and the running part is a center pin large bolt. In order to ensure the running safety of a train, the bolt is large in size, high-strength thread locking glue is smeared during assembly and connection, and is subjected to torsion of 680N.M, after a tunnel or open-air running for 5 years or so is carried out for about 50 ten thousand km, the disassembling difficulty of the bolt is greatly increased, the pre-loosening torque is up to 1000-2500 N.M, great trouble is brought to operators, 2-3 people are often required to participate simultaneously, and long time is wasted.

In the prior art, there are the following two methods; the first method needs to disassemble the bolt by means of a special tobacco pipe-shaped 3/4 square opening pre-loosening extension rod with the length of 1.7m and a 46mm sleeve combination, the middle disassembling mode is in practical application, the situation that an elbow is frequently broken and the extension rod is plastically deformed, the second method needs to disassemble the bolt by means of a steel pipe with the length of 2m and the aperture of 100mm and a truncated 46mm double-ended wrench combination, the steel pipe can be selected to be matched with the truncated wrench for use, the operation difficulty is high on the premise of ensuring the strength, at least two workers are required to be matched to finish pre-loosening, the labor and time are quite wasted, and potential safety hazards such as slip and fall injury and object striking can possibly occur in the operation process, and the method does not meet the requirements of site safety management.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a large-torque dismounting device for a rail transit vehicle so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a big moment of torsion dismounting device of rail transit vehicle, includes sleeve and key connection in telescopic conversion adapter, its characterized in that still includes:

the bearing part is arranged at the tail end of the torque multiplier;

a torque multiplier extending through the carrier and keyed to an end of the conversion adapter;

a ratchet handle keyed to an end of the torque multiplier, wherein the carrier comprises:

the bottom plate is provided with a through hole in the center for inserting the conversion adapter;

at least two groups of support plates which are arranged at two ends of the bottom plate in a mirror image mode; the support plate and the bottom plate form an accommodating space with expanded openings, the sleeve and the conversion adapter are both positioned in the accommodating space, and the support plate is arranged at two ends of the bottom plate to form convex edges.

Preferably, the torque multiplier further comprises a reset spring which is sleeved on the torque multiplier and respectively abutted with the bottom plate and the torque multiplier at two ends.

Preferably, the bearing part further includes:

the support frame is arranged on the bottom plate and is close to the through hole; a placing cavity is formed between the supporting frame and the bottom plate and used for placing a reset spring;

the through hole is arranged on the supporting frame and is positioned on the same axis with the through hole.

Preferably, the method further comprises:

the hexagonal buckle is sleeved on the torque multiplier and is positioned at the tail end of the conversion adapter;

the buckle lock catch is sleeved on the torque multiplier and is positioned between the torque multiplier and the bearing part.

Preferably, the method further comprises:

at least one group of spring balls are arranged at the joint of the sleeve and the conversion adapter.

Preferably, the ratchet handle comprises:

the handle body is connected with the end part of the torque multiplier through a key at one end;

the gripping part is vertically arranged at the other end of the handle body and is integrally formed with the handle body;

the elastic sleeve is rotatably sleeved on the gripping part.

The beneficial effects are that: through placing the bearing part near the bolt to be dismantled, make the bolt be located the holding chamber of bearing part, and with sleeve key connection in the bolt to be dismantled, the operation personnel apply external force to the ratchet handle, make the ratchet handle drive torque multiplier and rotate, under conversion adapter and sleeve, torque multiplier's the cooperation each other, accomplish the operation of loosening in advance to the bolt, and in the operation of loosening in advance to the bolt, utilize walking portion structure itself as bearing the fulcrum, need not the lift of external force promptly, put into and take out the in-process and adopt diagonal direction to change transverse cut-in method, reach steady bearing and not loosen the effect, so, only one operation personnel can accomplish the operation of loosening in advance to the bolt.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of a carrier according to the present utility model;

FIG. 4 is a schematic view of a ratchet handle of the present utility model.

The reference numerals in fig. 1 to 4 are: sleeve 1, conversion adapter 2, hexagonal buckle 3, buckle 4, bearing part 5, return spring 6, torque multiplier 7, ratchet handle 8, bottom plate 51, backup pad 52, support frame 53, through hole 54, through hole 55, handle body 81, grip 82, elastic sleeve 83.

Detailed Description

Referring to fig. 1 to 4, the present utility model provides a technical solution: the large torque dismounting device for the rail transit vehicle comprises a sleeve 1 and a conversion adapter 2 connected with the sleeve 1 through keys, the sleeve 1 in the embodiment adopts an adapting structure with two specifications of 3/4, the inner diameter of the sleeve is 46mm, the length of the sleeve is 55mm or 65mm of a plum blossom clamping groove sleeve 1 respectively, a rectangular hole is arranged at the connecting end of the sleeve 1 and the conversion adapter 2, a rectangular rod is arranged at the end part of the conversion adapter 2, the rectangular rod is 25mm in interface, in the embodiment, the conversion adapter 2 is 70mm long, the diameter of the end part is 46mm, the connecting end of the conversion adapter 2 and a torque multiplier 7 is provided with a rectangular rod, the torque multiplier 7 is connected with the conversion adapter 2 through the rectangular hole and the rectangular rod through keys, the connecting part of the conversion adapter 2 and the torque multiplier 7 adopts a spring ball to be fixedly connected, in the embodiment, the torque multiplier 7 adopts radial straight 100mm, the height is 338mm, the length of the driving end interface side is 10mm, a spring ball is arranged at the joint between the conversion adapter 2 and the torque multiplier 7, the conversion adapter is limited by being connected with a rectangular rod through a rectangular hole, the other end of the torque multiplier 7 is connected with a ratchet handle 8 through a key, the ratchet handle 8 comprises a handle body 81 with the arm length of 280mm, the interface of the handle body 81 and the torque multiplier 7 through the key adopts the interface with the inner diameter of 10mm, the other end of the handle body 81 is vertically provided with a gripping part 82, the length of the gripping part 82 is 125mm, the gripping part 82 and the handle body 81 are integrally formed, the outer wall of the gripping part 82 is rotationally sleeved with an elastic sleeve 83, the ratchet handle 8 can be freely rotated by an operator conveniently, the torque multiplier 7 is used as a force amplifying structure to replace a simple lever principle, the length of a force arm is shortened, and can be applied to more environment-limited scenes; the torque multiplier 7 and the conversion adapter 2 between install the carrier 5, the carrier 5 includes bottom plate 51, in this embodiment, bottom plate 51 adopts thickness to be 8mm, and length is 685mm panel to make, bottom plate 51 central authorities have seted up through-hole 54, and its diameter adopts 65mm, torque multiplier 7 runs through-hole 54, bottom plate 51 one side is equipped with braced frame 53, offered through-hole 55 on braced frame 53, form between braced frame 53 and the bottom plate 51 and place the chamber, place the intracavity and placed reset spring 6, torque multiplier 7 passes through-hole 55 and makes reset spring 6 cover on torque multiplier 7, in this embodiment, reset spring 6 adopts radial diameter 55mm, and movable allowance is 55 mm's reset spring 6, makes the spring spacing place the intracavity, the mutual mirror image in bottom plate 51 both sides is provided with backup pad 52, backup pad 52 with bottom plate 51 integrated into one piece is made, and the contained angle between backup pad 52 and the bottom plate 51 is 45, and backup pad 52 is 25mm long, and is 80mm wide, through the carrier 5 and the carrier is equipped with the ratchet that the cooperation is used as the loose to realize the loose structure in advance, can realize in the continuous operation in the space through carrying the carrier 5 to the ratchet, can not realize the continuous operation of the space of the loose, can not be accomplished by taking advantage of the space to the ratchet to the space.

In a further embodiment, the end of the conversion adapter 2 is provided with a hexagonal buckle 3, one side of the hexagonal buckle 3 is provided with a buckle lock 4, the buckle lock 4 is located between the hexagonal buckle 3 and the reset spring 6, the buckle lock 4 is located in a placing cavity formed by the supporting frame 53 and the bottom plate 51, in this embodiment, the hexagonal buckle 3 adopts a buckle with an inner diameter of 35mm, an outer diameter of 45mm and a convex edge top interval of 50mm, the buckle lock 4 adopts a buckle lock 4 with an inner diameter of 47.5mm and an outer diameter of 55mm, and under the action of the buckle lock 4, the positions of the reset spring 6 and the hexagonal buckle 3 are effectively locked.

The specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.

Claims (6)

1. The utility model provides a big moment of torsion dismounting device of rail transit vehicle, includes sleeve and key connection in telescopic conversion adapter, its characterized in that still includes:

the bearing part is arranged at the tail end of the conversion adapter;

a torque multiplier extending through the carrier and keyed to an end of the conversion adapter;

a ratchet handle keyed to an end of the torque multiplier, wherein the carrier comprises:

the bottom plate is provided with a through hole in the center for inserting the conversion adapter;

at least two groups of support plates which are arranged at two ends of the bottom plate in a mirror image mode; the support plate and the bottom plate form an accommodating space with expanded openings, the sleeve and the conversion adapter are both positioned in the accommodating space, and the support plate is arranged at two ends of the bottom plate to form convex edges.

2. The high-torque dismounting device for the rail transit vehicle according to claim 1, further comprising a return spring which is sleeved on the torque multiplier and respectively abutted with the bottom plate and the torque multiplier at two ends.

3. The high torque disassembly device of a rail transit vehicle of claim 2, wherein said carrier further comprises:

the support frame is arranged on the bottom plate and is close to the through hole; a placing cavity is formed between the supporting frame and the bottom plate and used for placing a reset spring;

the through hole is arranged on the supporting frame and is positioned on the same axis with the through hole.

4. The high torque disassembly device of a rail transit vehicle of claim 1, further comprising:

the hexagonal buckle is sleeved on the torque multiplier and is positioned at the tail end of the conversion adapter;

the buckle lock catch is sleeved on the torque multiplier and is positioned between the torque multiplier and the bearing part.

5. The high torque disassembly device of a rail transit vehicle of claim 1, further comprising:

at least one group of spring balls are arranged at the joint of the sleeve and the conversion adapter.

6. The high torque disassembly device of a rail transit vehicle of claim 1, wherein said ratchet handle comprises:

the handle body is connected with the end part of the torque multiplier through a key at one end;

the gripping part is vertically arranged at the other end of the handle body and is integrally formed with the handle body;

the elastic sleeve is rotatably sleeved on the gripping part.