CN211889749U

CN211889749U - Withdrawal device

Info

Publication number: CN211889749U
Application number: CN202020237188.2U
Authority: CN
Inventors: 宿连霞; 李鹏; 徐华祥; 管明; 刘永杰
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-11-10
Anticipated expiration: 2030-02-28

Abstract

The utility model provides a withdrawal device, withdrawal device are used for dismantling the cover and establish the second work piece on first work piece, and withdrawal device includes: a support for connection with a second workpiece; the positioning piece is used for being connected with the first workpiece, a positioning groove is formed in the positioning piece, and the positioning groove is matched with the part to be positioned of the first workpiece, so that the part to be positioned is inserted into the positioning groove; the moving piece is connected with the supporting piece and movably arranged along a first preset direction relative to the supporting piece, so that the moving piece is abutted against the positioning piece in the moving process, the positioning piece and the first workpiece are pushed to move, and the first workpiece is separated from the second workpiece. The utility model discloses a withdrawal device has solved among the prior art and has easily caused the problem of the damage of shaft coupling and connecting axle at the in-process of dismantling the shaft coupling.

Description

Withdrawal device

Technical Field

The utility model relates to a dismantle the frock particularly, relate to a withdrawal device.

Background

The assembly of the coupling is involved in the bullet train assembly process, the coupling of part of models adopts 1:10 taper fit connection, the assembly adopts the temperature difference method to heat the assembly, and the disassembly adopts the cold drawing method to disassemble. In the process of assembling the coupling, the assembling stroke needs to be calculated after the hot assembly of the coupling is finished; if the coupling assembling stroke is within the qualified range, the coupling is qualified in hot assembling; if the range is exceeded, the coupling needs to be subjected to hot loading, unloading and reassembly. After the cold-assembled coupling is used for measuring the cold-assembled size, the coupling needs to be disassembled and disassembled in a cold assembling mode.

At present, a coupling cold loading and unloading method comprises the following steps: the outer cylinder of the coupling is quickly pulled along the withdrawing direction of the coupling, so that the outer cylinder and the pinion inside the outer cylinder generate impact, and cold loading and unloading of the coupling are completed.

However, there is a possibility that a trace may be generated after the coupling outer cylinder collides with the pinion, and the collision portion is located inside the coupling and cannot be observed from the outside, so that there is a certain quality risk, and the damage to the coupling and the small shaft of the motor is large, which causes an increase in secondary cost.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a withdrawal device to solve the problem of the damage of the coupling and the connecting shaft which is easily caused in the process of disassembling the coupling in the prior art.

In order to realize the above object, the utility model provides a withdrawal device for dismantle the second work piece that the cover was established on first work piece, withdrawal device includes: a support for connection with a second workpiece; the positioning piece is used for being connected with the first workpiece, a positioning groove is formed in the positioning piece, and the positioning groove is matched with the part to be positioned of the first workpiece, so that the part to be positioned is inserted into the positioning groove; the moving piece is connected with the supporting piece and movably arranged along a first preset direction relative to the supporting piece, so that the moving piece is abutted against the positioning piece in the moving process, the positioning piece and the first workpiece are pushed to move, and the first workpiece is separated from the second workpiece.

Furthermore, a positioning hole is formed in the positioning piece, a positioning head is arranged at one end of the moving piece, and the positioning head is matched with the positioning hole so that the positioning head is inserted into the positioning hole when the moving piece abuts against the positioning piece.

Further, the support part is provided with a first opening and a second opening, and the first opening is communicated with the second opening; at least part of the positioning piece is used for being inserted into the first opening; the part of moving member is inserted and is established in the second trompil, and the moving member is movably setting in the second trompil.

Further, the moving member is a screw rod, the second opening is a threaded hole, and the screw rod is inserted in the threaded hole.

Furthermore, the lead screw is provided with a first end and a second end which are oppositely arranged, the positioning head is arranged at the first end of the lead screw, the second end of the lead screw is provided with an operating part, and the operating part is provided with a plurality of clamping side faces.

Further, the withdrawal device further comprises: and the connecting piece is connected with the supporting piece and is detachably arranged with the second workpiece.

Furthermore, the connecting pieces are multiple and are arranged at intervals around the circumference of the positioning piece.

Further, the connecting piece is a bolt, and two ends of the thread of the bolt are respectively connected with the supporting piece and the second workpiece.

Further, one end of the positioning piece, which is far away from the supporting piece, is provided with a flexible piece.

Furthermore, the first workpiece is a connecting shaft, and the second workpiece is a coupling; wherein the support is used for connecting with the gear of the shaft coupling.

The utility model discloses a withdrawal device is used for dismantling the cover and establishes the second work piece on first work piece, and withdrawal device includes support piece, setting element and moving member, when dismantling the operation to the second work piece, screws the setting element at first work piece and is connected support piece and second work piece, then makes the moving member move towards the setting element to promote setting element and first work piece, so that first work piece and second work piece separate, this withdrawal device is convenient for operate, avoids haring first work piece and second work piece.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an embodiment of a withdrawal device according to the invention.

Wherein the figures include the following reference numerals:

10. a first workpiece; 11. a part to be positioned; 20. a second workpiece; 30. a support member; 31. a first opening; 32. a second opening; 40. a positioning member; 41. a positioning groove; 42. positioning holes; 50. a moving member; 51. positioning the head; 60. a connecting member; 70. an operation unit.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The utility model provides a withdrawal device please refer to fig. 1 for dismantle the second work piece 20 of cover on first work piece 10, withdrawal device includes: a support 30 for connection with the second workpiece 20; the positioning piece 40 is used for being connected with the first workpiece 10, a positioning groove 41 is formed in the positioning piece 40, and the positioning groove 41 is matched with the part to be positioned 11 of the first workpiece 10, so that the part to be positioned 11 is inserted into the positioning groove 41; and the moving member 50 is connected with the supporting member 30 and movably arranged along a first preset direction relative to the supporting member 30, so that the moving member 50 abuts against the positioning member 40 during the moving process, and the positioning member 40 and the first workpiece 10 are pushed to move, and the first workpiece 10 is separated from the second workpiece 20.

The utility model discloses a withdrawal device is used for dismantling the cover and establishes second work piece 20 on first work piece 10, withdrawal device includes support piece 30, setting element 40 and moving member 50, when dismantling the operation to second work piece 20, screw setting element 40 at first work piece 10 and be connected support piece 30 and second work piece 20, then make moving member 50 remove towards setting element 40, in order to promote setting element 40 and first work piece 10, in order to make first work piece 10 and second work piece 20 separate, this withdrawal device is convenient for operate, avoid haring first work piece 10 and second work piece 20.

In particular, the support member 30 is a flange structure.

In the embodiment, the positioning member 40 is provided with a positioning hole 42, one end of the moving member 50 is provided with a positioning head 51, and the positioning head 51 is adapted to the positioning hole 42 so as to enable the positioning head 51 to be inserted into the positioning hole 42 when the moving member 50 abuts against the positioning member 40. Such an arrangement facilitates pushing of the positioning member 40.

In the present embodiment, the supporting member 30 has a first opening 31 and a second opening 32, and the first opening 31 is communicated with the second opening 32; at least part of the positioning member 40 is adapted to be inserted into the first opening 31; a portion of the moving member 50 is inserted into the second opening 32, and the moving member 50 is movably disposed in the second opening 32.

Preferably, the moving member 50 is a screw shaft, and the second opening 32 is a threaded hole, and the screw shaft is inserted into the threaded hole.

In this embodiment, the moving member 50 has a first end and a second end opposite to each other, the positioning head 51 is disposed at the first end of the moving member 50, the second end of the moving member 50 is provided with an operating portion 70, and the operating portion 70 has a plurality of clamping sides. This arrangement facilitates the operator to hold the operation portion 70 by a wrench or other tool to rotate the moving member 50.

In this embodiment, the withdrawing device further includes a coupling member 60, the coupling member 60 is coupled to the supporting member 30, and the coupling member 60 is detachably disposed with the second workpiece 20.

In the present embodiment, the connecting member 60 is provided in plurality, and the plurality of connecting members 60 are provided at intervals around the circumference of the positioning member 40. Preferably, a plurality of connectors 60 are evenly spaced around the circumference of the positioning member 40.

Preferably, there are two or four connectors 60.

In one embodiment, the connecting member 60 is a bolt, and two ends of the thread of the bolt are respectively connected to the supporting member 30 and the second workpiece 20. Preferably, the connector 60 is an M10 bolt.

Preferably, the end of the positioning member 40 remote from the support member 30 is provided with a flexible member. Such an arrangement may avoid damage to the first and second workpieces by the flexible member contacting the first and second workpieces as the positioning member 40 moves toward the first and second workpieces.

In specific implementation, the first workpiece 10 is a connecting shaft, and the second workpiece 20 is a coupling; wherein the support 30 is used for the gear connection of the coupling.

The application is to the special withdrawal device that E28 motorcycle type shaft coupling equipment was unloaded and is developed, through this application with the axial tension transmission to the shaft coupling that the lead screw produced, adopt quiet pulling force to accomplish the cold drawing to the shaft coupling and move back and unload. The scratch and the scrap of the coupling and the small shaft of the motor (namely the part to be positioned 11) caused by the destructive disassembly of the original coupling are avoided.

In specific implementation, the positioning piece 40 is subjected to finish machining, and the size of the positioning groove 41 is in close fit with the outer side of the small shaft. After the two pieces of M10 bolts are fastened, the supporting piece 30 and the positioning piece 40 are firmly connected and fastened with the pinion and the small shaft of the coupling into a whole. The support member 30 grips the coupling pinion through an M10 bolt, and the lead screw is tightened with a torque wrench, and the generated axial force is transmitted to the pinion through the positioning member 40, thereby completing the axial withdrawal and withdrawal of the pinion.

The method solves the problems that traces can be generated after the coupling outer cylinder and the pinion are impacted in the traditional impact unloading method, and the impacted part cannot be observed from the outside in the coupling, so that certain quality hidden danger exists.

The application has the following advantages: 1. the cold drawing and dismounting of the coupling (namely the second workpiece) are successfully realized. When the coupling is disassembled, the positioning piece 40 is screwed at the shaft end of the small shaft (namely the part 11 to be positioned), the supporting piece 30 is connected to the small gear of the coupling (namely the gear of the coupling) by using a bolt, the screw rod is screwed, and the disassembling tension is transmitted to the small shaft through the positioning piece 40, so that the cold drawing disassembling function of the coupling is realized; 2. the unloading success rate is high. The fastening action of the moving parts 50 at two sides tightly fixes the supporting part 30 on the pinion of the coupling, and the success rate is 100%; 3. the operation is safe. The process does not need an oil injection withdrawal or heating withdrawal method, avoids personnel injury caused by oil injection withdrawal or scalding caused by heating, and is not easy to squeeze fingers. Use this application to solve the problem that the easy damage was unloaded in the coupling cold drawing of reality, the device is small and exquisite, convenient, does not receive the limitation of space and manpower, and 1 people alright operation is accomplished, can greatly save and unload the cycle, does not cause the coupling to scrap, the motor is scrapped, guarantees to unload the quality. The cold-drawing withdrawal tool avoids potential safety hazards when the coupling is taken down, and personal safety of workers is protected. The quality hidden trouble that the components inside the coupling collide with possibly generated by the original operation method is also avoided.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A withdrawal device for detaching a second workpiece (20) mounted on a first workpiece (10), characterized in that it comprises:

a support (30) for connection with the second workpiece (20);

the positioning piece (40) is used for being connected with the first workpiece (10), a positioning groove (41) is formed in the positioning piece (40), the positioning groove (41) is matched with the part (11) to be positioned of the first workpiece (10), and therefore the part (11) to be positioned is inserted into the positioning groove (41);

the moving piece (50) is connected with the supporting piece (30) and movably arranged along a first preset direction relative to the supporting piece (30), so that the moving piece (50) is abutted against the positioning piece (40) in the moving process, the positioning piece (40) and the first workpiece (10) are pushed to move, and the first workpiece (10) is separated from the second workpiece (20).

2. The withdrawal device according to claim 1, wherein a positioning hole (42) is formed in the positioning member (40), a positioning head (51) is disposed at one end of the moving member (50), and the positioning head (51) is adapted to the positioning hole (42) so that the positioning head (51) is inserted into the positioning hole (42) when the moving member (50) abuts against the positioning member (40).

3. A withdrawal device according to claim 2, characterized in that the support (30) has a first opening (31) and a second opening (32), the first opening (31) communicating with the second opening (32); at least part of the positioning piece (40) is used for being inserted into the first opening hole (31); part of the moving member (50) is inserted in the second opening (32), and the moving member (50) is movably disposed in the second opening (32).

4. A withdrawal device as claimed in claim 3, characterized in that said mobile element (50) is a threaded screw, said second opening (32) being a threaded hole in which said threaded screw is inserted.

5. The withdrawal device according to claim 4, wherein the screw has a first end and a second end arranged opposite to each other, the positioning head (51) being arranged at the first end of the screw, the second end of the screw being provided with an operating portion (70), the operating portion (70) having a plurality of gripping flanks.

6. The withdrawal device of claim 1, further comprising:

a connector (60), the connector (60) is connected with the support (30), and the connector (60) is detachably arranged with the second workpiece (20).

7. A withdrawal device according to claim 6, wherein there are a plurality of said connectors (60), a plurality of said connectors (60) being arranged at circumferentially spaced intervals around said positioning member (40).

8. A withdrawal device according to claim 6, characterized in that the connecting member (60) is a bolt, the two ends of the thread of which are connected to the support member (30) and the second workpiece (20), respectively.

9. A withdrawal device as claimed in any one of claims 1 to 8, characterized in that the end of the positioning member (40) remote from the support member (30) is provided with a flexible member.

10. A withdrawal device according to any of claims 1 to 8, wherein the first workpiece (10) is a connecting shaft and the second workpiece (20) is a coupling; wherein the support (30) is adapted to be connected to a gear of the coupling.