CN219466023U - Lower guide rod nut dismounting tool for pantograph of motor train unit - Google Patents
Lower guide rod nut dismounting tool for pantograph of motor train unit Download PDFInfo
- Publication number
- CN219466023U CN219466023U CN202320286232.2U CN202320286232U CN219466023U CN 219466023 U CN219466023 U CN 219466023U CN 202320286232 U CN202320286232 U CN 202320286232U CN 219466023 U CN219466023 U CN 219466023U
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- tool
- guide rod
- lower guide
- pantograph
- operation hole
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Abstract
The utility model belongs to the field of overhauling and maintenance of motor train units, and particularly discloses a tool for disassembling and assembling nuts of a lower guide rod of a pantograph of a motor train unit. The tool for disassembling and assembling the lower guide rod nuts of the pantograph of the motor train unit comprises a tool main body; the sleeve structure is arranged on the inner side of one end of the tool main body, is round and is matched with the annular fixing nut in size, and a protruding block matched with the outer circumferential groove of the annular fixing nut is arranged on the inner wall of the sleeve structure; the spanner operation hole is arranged at the inner side of the other end of the tool main body; a force application wrench acting on the wrench operation hole; the end side of the sleeve structure and the end side of the spanner operation hole are a group of opposite end sides on the tool main body. The tool disclosed by the utility model has the advantages of simple structure and convenience in operation, and can be used for rapidly detaching and installing the annular fixing nut, so that the replacement or correction efficiency of the lower guide rod is improved.
Description
Technical Field
The utility model belongs to the field of overhauling and maintenance of motor train units, and relates to a tool for disassembling and assembling nuts of a lower guide rod of a pantograph of a motor train unit.
Background
The lower guide rod of the pantograph of the CRH380B (L) motor train unit is an important part for supporting the pantograph assembly, and mainly comprises a lower pull rod, a fixing nut and a connecting part, wherein one end of the lower guide rod is connected with a lower arm of the pantograph, and the other end of the lower guide rod is connected with a pantograph frame.
In the past maintenance process, a fault that the lower guide rod is deformed and bent due to the fact that the pantograph is hit has been found, and in this case, the lower guide rod must be replaced or the lower guide rod must be corrected.
However, when the lower guide rod is replaced or corrected, the ring-shaped fixing nut connected with the lower arm needs to be disassembled, and the ring-shaped fixing nut is a special-shaped piece, and the structure of the ring-shaped fixing nut is shown in fig. 1.
Four grooves 102 are uniformly distributed on the outer circumference of the annular fixing nut 101.
At present, a proper disassembling tool does not exist in the tool room, so that the annular fixing nut is extremely difficult to disassemble, and other parts are easy to damage in the disassembling process.
Therefore, each time a fault occurs, the fault is handled by a manufacturer. Sometimes, the manufacturer cannot get in place at the first time, so that fault treatment is greatly influenced, and further, the safety positive point on-line of the train is influenced.
Therefore, the lower guide rod cannot be replaced or corrected in time due to the lack of a proper annular fixing nut disassembly tool, and the maintenance efficiency of the motor train unit is further affected.
Disclosure of Invention
The utility model aims to provide a tool for disassembling and assembling nuts of a lower guide rod of a pantograph of a motor train unit, which is simple in structure, can quickly disassemble and assemble annular fixing nuts, and improves replacement or correction efficiency of the lower guide rod.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a motor train unit pantograph lower guide rod nut dismounting tool comprises:
comprises a tool main body;
the sleeve structure is arranged on the inner side of one end of the tool main body, is round and is suitable for an annular fixing nut connected between the lower guide rod and the lower arm; the inner wall of the sleeve structure is provided with a convex block which is matched with the groove on the outer circumference of the annular fixing nut;
the spanner operation hole is arranged at the inner side of the other end of the tool main body;
the shape and the size of the force application end of the force application spanner are matched with those of the spanner operation hole, and the force application spanner can be matched with the spanner operation hole in a plug-in mode;
the tool main body end side where the sleeve structure is located and the tool main body end side where the wrench operation hole is located specifically refer to a group of opposite end sides on the tool main body.
Preferably, the number of the protruding blocks is equal to the number of the grooves, and the protruding blocks are uniformly distributed on the inner wall of the sleeve structure.
Preferably, the number of the convex blocks and the number of the concave grooves are four.
Preferably, the tool body, the sleeve structure, the lug and the wrench operating hole are integrally formed.
Preferably, the wrench operation hole is an inner four-corner operation hole or an inner six-corner operation hole.
Preferably, the force application wrench adopts a T-shaped wrench;
the shape and the size of the force application end of the T-shaped spanner are matched with the shape and the size of the spanner operation hole.
The utility model has the following advantages:
as described above, the utility model relates to a tool for dismounting and mounting a lower guide rod nut of a pantograph of a motor train unit, wherein a sleeve structure is arranged at the inner side of one end of the tool, the sleeve structure is provided with an appearance which is suitable for an annular fixing nut (connected between a lower guide rod and a lower arm), a convex block which is matched with an outer circumferential groove of the annular fixing nut is arranged on the inner wall of the sleeve structure, and a spanner operation hole is formed at the inner side of the other opposite end of the tool, so that an auxiliary spanner is convenient to apply force. When the lower guide rod nut (namely the annular fixing nut) of the pantograph needs to be dismounted, the sleeve structure is only required to be aligned with the annular fixing nut, the convex blocks are inserted into the corresponding grooves, the other ends of the convex blocks extend into the spanner operation holes to be screwed, the annular fixing nut can be quickly dismounted and mounted, and the replacement or correction efficiency of the lower guide rod is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural view of a ring-shaped fixing nut.
Fig. 2 is a schematic diagram of one end of a tool for dismounting a lower guide rod nut of a pantograph of a motor train unit according to embodiment 1 of the present utility model.
Fig. 3 is a side view of a tool for disassembling and assembling a lower guide rod nut of a pantograph of a motor train unit according to embodiment 1 of the present utility model.
Fig. 4 is a schematic diagram of the other end of the tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit in embodiment 1 of the utility model.
Fig. 5 is a schematic structural view of a T-wrench cooperating with the bolt disassembling tool in embodiment 1 of the present utility model.
Fig. 6 is a schematic diagram of the other end of the tool for dismounting and mounting the lower guide rod nut of the pantograph of the motor train unit in embodiment 2 of the utility model.
Fig. 7 is a schematic structural view of a T-wrench cooperating with the bolt removing tool in embodiment 2 of the present utility model.
Wherein, 101-an annular fixing nut and 102-an outer circumferential groove; the tool comprises a 1-tool main body, a 2-sleeve structure, a 3-lug, a 4-wrench operation hole, a 5-T-shaped wrench and a 6-concave area.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Example 1
As shown in fig. 2 to 4, the present embodiment relates to a tool for disassembling and assembling a lower guide rod nut of a pantograph of a motor train unit, which is used for solving the problem of disassembling and assembling an annular fixing nut connected between a lower guide rod and a lower arm.
The tool for disassembling and assembling the lower guide rod nuts of the pantograph of the motor train unit comprises a tool main body 1.
The inner side of one end of the tool main body 1 is provided with a sleeve structure 2.
The sleeve structure 2 is circular and sized to fit the ring-shaped retaining nut 101. Here, it is preferable that the sleeve structure 2 can be fitted over the ring-shaped fixing nut 101.
The inner wall of the sleeve structure 2 is provided with a protruding block 3 which is matched with the outer circumferential groove 102 of the ring-shaped fixing nut 101. Wherein the number of the bumps 3 is equal to the number of the grooves 102.
The projections are uniformly arranged on the inner wall of the sleeve structure 2.
Since the number of grooves 102 is four as shown in fig. 1, the bumps 3 are also provided in four. In addition, since each groove 102 is rectangular in shape.
Therefore, the shape of the bump 3 in the present embodiment may also be set to a rectangular shape.
Furthermore, on both sides of the root of each bump 3, i.e. on opposite sides of the connection of the bottom of the bump 3 to the inner wall of the sleeve structure 2, there is provided a recess, such as the recess 6 in fig. 2.
The recess 6 allows a smoother insertion of the individual projections 3 into the corresponding recesses 102. The recess 6 in this embodiment is preferably a circular arc recess.
As shown in fig. 4, a wrench operation hole 4 is provided inside the other end of the tool body 1.
The end side of the sleeve structure 2 and the end side of the wrench operation hole 4 refer to a set of opposite end sides on the tool body 1, for example, left and right sides in fig. 3.
As shown in fig. 4, the wrench operation hole 4 is an inner four corner operation hole.
In addition, the tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit further comprises a T-shaped wrench 5, as shown in fig. 5. The shape and the size of the force application end of the T-shaped spanner are matched with those of the spanner operation hole 4.
The T-wrench 5 is engaged with the wrench operation hole 4 in a pluggable connection. Specifically, the force application end of the T-wrench 5 is the end of the T-wrench inserted into the wrench operation hole 4.
Similarly, in this embodiment, the force application end of the T-wrench 5 is quadrilateral.
Through inserting the application of force end of T type spanner 5 into spanner operation hole 4 to cooperate with spanner operation hole 4, conveniently exert force to frock main part 1, and then make things convenient for frock main part 1 to dismantle or install work fast annular fixation nut 101, improved the change or the correction efficiency of lower guide arm greatly.
Of course, the T-wrench 5 may be replaced with a ratchet wrench. It should be noted that, the T-shaped wrench 5 or the ratchet wrench is a mature wrench, and is only used to assist the tool body 1 in this embodiment.
Of course, the present embodiment is not limited to the above two types of force wrenches, and other easily conceivable force wrenches having the same or similar functions as the T-wrench 5/ratchet wrench fall within the scope of the present utility model, and should be protected by the present utility model.
In the embodiment, the tool main body 1, the sleeve structure 2, the protruding block 3 and the spanner operation hole 4 are integrally formed, so that the overall structural strength of the tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit is improved.
The general working process of the tool for disassembling and assembling the lower guide rod nuts of the pantograph of the motor train unit is as follows:
when the ring fixing nut 101 needs to be disassembled, the process is as follows:
first, the sleeve structure 2 is aligned with the ring-shaped fixing nut 101, the protruding block 3 is inserted into the corresponding groove 102, and the other end of the wrench operating hole 4 is clamped by the T-wrench 5. The hand acts on the T-shaped spanner 5, and the annular fixing nut 101 can be easily detached by screwing the annular fixing nut 101.
The process of installing the ring-shaped fixing nut 101 is substantially the same as the above-described disassembly process, and will not be described again here.
The CRH380B (L) type tool for dismounting the lower guide rod nut of the pantograph of the motor train unit can quickly and accurately realize the dismounting of the annular fixing nut connected between the lower guide rod and the lower arm, greatly meets the requirements of maintenance operation of the motor train unit, avoids delay fault treatment and improves the maintenance efficiency of the motor train unit.
In addition, the CRH380B (L) motor train unit pantograph lower guide rod nut dismounting tool has the advantages of simple structure, convenience in operation and the like, meanwhile, the damage to other equipment in the dismounting operation is effectively avoided, and the maintenance labor is saved.
Example 2
The present embodiment 2 also describes a tool for dismounting and mounting a lower guide rod nut of a pantograph of a motor train unit, and the following technical features are different from those of the foregoing embodiment 1, and all the other technical features can be referred to embodiment 1.
As shown in fig. 6 and 7, the wrench operation hole 4 in the present embodiment is an inner hexagonal operation hole. Similarly, the force application end of the T-shaped wrench 5 is hexagonal, so as to be matched with the wrench operation hole 4.
Of course, the above-mentioned embodiments are only preferred embodiments of the present utility model, and not limiting the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model and should be protected by the present utility model.
Claims (6)
1. A tool for disassembling and assembling nuts of a lower guide rod of a pantograph of a motor train unit is characterized in that,
comprises a tool main body;
the sleeve structure is arranged on the inner side of one end of the tool main body, is round and is suitable for an annular fixing nut connected between the lower guide rod and the lower arm; the inner wall of the sleeve structure is provided with a convex block which is matched with the groove on the outer circumference of the annular fixing nut;
the spanner operation hole is arranged at the inner side of the other end of the tool main body;
the shape and the size of the force application end of the force application spanner are matched with those of the spanner operation hole, and the force application spanner can be matched with the spanner operation hole in a plug-in mode;
the tool main body end side where the sleeve structure is located and the tool main body end side where the wrench operation hole is located specifically refer to a group of opposite end sides on the tool main body.
2. The tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit according to claim 1, is characterized in that,
the number of the convex blocks is equal to that of the grooves;
the convex blocks are uniformly distributed on the inner wall of the sleeve structure.
3. The tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit according to claim 2, is characterized in that,
the number of the convex blocks and the number of the concave grooves are four.
4. The tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit according to claim 1, is characterized in that,
the tool body, the sleeve structure, the protruding block and the spanner operation hole are integrally formed.
5. The tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit according to claim 1, is characterized in that,
the spanner operation hole is an inner four-corner operation hole or an inner hexagonal operation hole.
6. The tool for disassembling and assembling the lower guide rod nut of the pantograph of the motor train unit according to claim 5, wherein,
the force application spanner adopts a T-shaped spanner; wherein:
the shape and the size of the force application end of the T-shaped spanner are matched with the shape and the size of the spanner operation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286232.2U CN219466023U (en) | 2023-02-22 | 2023-02-22 | Lower guide rod nut dismounting tool for pantograph of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320286232.2U CN219466023U (en) | 2023-02-22 | 2023-02-22 | Lower guide rod nut dismounting tool for pantograph of motor train unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219466023U true CN219466023U (en) | 2023-08-04 |
Family
ID=87459058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320286232.2U Active CN219466023U (en) | 2023-02-22 | 2023-02-22 | Lower guide rod nut dismounting tool for pantograph of motor train unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219466023U (en) |
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2023
- 2023-02-22 CN CN202320286232.2U patent/CN219466023U/en active Active
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