CN202846487U

CN202846487U - Screw disassembling tool

Info

Publication number: CN202846487U
Application number: CN 201220513140
Authority: CN
Inventors: 邓智泉; 聂永辉
Original assignee: China Tobacco Guizhou Industrial Co Ltd
Current assignee: China Tobacco Guizhou Industrial Co Ltd
Priority date: 2012-10-08
Filing date: 2012-10-08
Publication date: 2013-04-03
Anticipated expiration: 2022-10-08

Abstract

The utility model provides a screw disassembling tool which comprises a punch and a punch base. The punch is composed of an ejector rod, a boss and an impacting body, wherein the ejector rod, the boss and the impacting body are connected in sequence. The ejector rod is connected in the punch base in a threaded mode. The punch can protrude out or retract through interaction force produced by rotation of threads, and therefore acting force is exerted to a fastening screw so as to eject the fastening screw. Changing process of a coupling is simplified, changing speed of the coupling is quickened, working intensity for a repairman is reduced, and damage to other parts of equipment is reduced. Stability and reliability of an operating mechanism of the equipment are guaranteed, and stability in disassembling the screw is ensured.

Description

A kind of screw disassembling tool

Technical field

The utility model relates to flight-line maintenance, relates in particular to a kind of screw disassembling tool.

Background technology

In flight-line maintenance, some part is because the space, installation site is narrower and small, and is very inconvenient during repair demolition, take shaft coupling as example.Two axles that shaft coupling be used for to connect different institutions make it jointly rotate with transmitting torque, and the yielding coupling in the shaft coupling has also that contingent displacement compensates to diaxon, and has the ability that absorbs vibration, mitigation impact.Through after using for a long time, the trip bolt on the shaft coupling and steel bushing are killed mutually tending to occur corrosion, distortion under the effect of moment of torsion and under the effect of the corrosion of moisture in air.When it is carried out dismounting and change, often kill the dismounting difficulty that becomes because of trip bolt and steel bushing corrosion, and the service clearance of shaft coupling region is generally comparatively narrow, dismantle also comparatively difficult with hammer and drift.Now general comparatively general method for dismounting is: for bolt corrosion or that grease is many, usually use the connection place of solvent (such as the agent of pine rust) spraying bolts and nuts, allow solvent infiltrate in the screw thread and go, will dismantle easily like this.If can't get off Bolt dismantling, can adopt heating, the heating-up temperature general control is below 200 ℃.By heating the gap between nut and the bolt is strengthened, the corrosion thing also falls down easily, makes Bolt dismantling become easier.If when all not all right with above-mentioned way, only have the destruction bolt, bolt cut away or bores.We can adopt the mode of spraying loosening agent for the screw after the corrosion, reduce work difficulty, but for because distortion when causing steel bushing and screw to kill, sometimes also need the destructive mode of the sawed-off rear grade of trip bolt to be continued shaft coupling is dismantled easy like this other part injuries to equipment.Above-mentioned situation has increased time and the maintenance cost of overhaul of the equipments, so letter treats a kind of simplified way that is applied to the screw disassembling of small space, shortens the repair time, uses easily extracting tool.

The utility model content

The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of screw disassembling tool, is used for solving the problems of the prior art.

Reach for achieving the above object other relevant purposes, the utility model provides a kind of screw disassembling tool, comprise a drift and a drift base, described drift is made of the push rod, boss and the impact body that link to each other successively, and described push rod is threaded in the described drift base.

Preferably, also comprise a fixing block piece, described drift base and fixedly block piece is inconsistent.

Preferably, described impact body is bullet.

Preferably, the two sides of described boss are the plane about drift axis symmetry.

Preferably, the two sides of described drift base are the plane about drift base axis symmetry.

By above technical scheme, the utlity model has following technique effect:

The interaction force that the utility model produces by screw thread rotation stretches out drift or returns, and then trip bolt is applied active force it is ejected.Simplify the Renewal process of shaft coupling, accelerated the replacing speed of shaft coupling, reduced mechanic's working strength, reduced the possibility that other parts of equipment are damaged.Stationarity, reliability to the equipment travelling mechanism provide guarantee, have guaranteed the stable of screw disassembling process.

Description of drawings

Fig. 1 is the utility model working state schematic representation;

Fig. 2 is the punch structure schematic diagram;

Fig. 3 is drift understructure schematic diagram;

Fig. 4 is Fig. 3 side view;

Fig. 5 is the hooping structure schematic diagram.

The element numbers explanation:

The 1-axle; The 2-anchor ear; The 3-shaft coupling;

The 4-trip bolt; The 5-nut; The 6-screw disassembling tool;

The 61-impact body; The 62-boss; The 63-push rod;

64-drift base; The 7-bearing block.

The specific embodiment

Below by particular specific embodiment embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.

Embodiment one:

As shown in Figures 2 and 3, the utility model provides a kind of screw disassembling tool 6, comprises a drift and a drift base 64, and drift is made of the push rod 63, boss 62 and the impact body 61 that link to each other successively, and push rod 63 is threaded in the drift base 64.The utility model is applicable to the screw disassembling operation of small space, trip bolt 4 on the dismounting couplers 3 is as example, as shown in Figure 1, this screw disassembling tool 6 is clamped between shaft coupling 3 and the bearing block 7, drift base 64 is conflicted with bearing block 7, and the impact body 61 of drift is against on the central point of trip bolt to be removed.The maintenance personal uses two spanners, a spanner is clamped on the drift base 64, the boss 62 of another spanner clamping drift and rotation, utilize the push rod 63 of drift to be threaded with drift base 64 interaction force that rotation produces stretches out drift or returns, and then trip bolt 4 is ejected from nut 5 and shaft coupling 3.

For guaranteeing drift when working, the application point of impact body can act on the central point of trip bolt all the time, and impact body is designed to bullet; Be the convenient wrench clamping simultaneously, the two sides of boss and drift base are about separately the plane of axis symmetry (shown in Figure 4).For avoiding the excessive equipment to contact of drift base pressure to cause damage, therefore on the drift base designs, can suitably strengthen the area of its contact-making surface.Because of the specification of shaft coupling variant, long such as trip bolt to be removed, also should consider to lengthen drift to satisfy the demand.

Embodiment two:

When position to be removed, shaft coupling and other parts larger apart from size is drift base 64 when providing support without parts, and a fixing block piece can be set on existing parts basis, is that the drift base provides support by fixing block piece.In the present embodiment, a sheathed anchor ear 2 on axle 1, this anchor ear is above-mentioned fixedly block piece, hooping structure as shown in Figure 5, screw disassembling tool 6 is clamped in anchor ear 2 and 3 on shaft coupling (shown in Fig. 1 dotted line), and drift base 64 is conflicted with anchor ear 2, and the disassembling section method is with embodiment one.

The time of originally changing a shaft coupling is 2 ~ 5 hours, and after using this screw disassembling tool, the time decreased of changing shaft coupling is 30 minutes.Originally when the dismounting yielding coupling, need 2 ~ 3 mechanics to cooperate maintenance, only need now a mechanic just can finish replacing, reduced mechanic's working strength, simultaneously owing to do not need to carry out again the destructiveness maintenance, when changing shaft coupling, reduced the possibility that other parts of equipment are damaged.In sum, the utility model is small and exquisite, easy, applicability is wide, has simplified the dismounting mode of shaft coupling, has shortened the repair time, and not only has been defined in dismounting coupling, and the screw disassembling of small space all can be made suitable improvement and is applied on this patent basis.So the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.

Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.

Claims

1. screw disassembling tool, it is characterized in that, comprise a drift and a drift base (64), described drift is made of the push rod (63) that links to each other successively, boss (62) and impact body (61), and described push rod (63) is threaded in the described drift base (64).

2. a kind of screw disassembling tool according to claim 1 is characterized in that, also comprises a fixing block piece, and described drift base (64) is with fixedly block piece is inconsistent.

3. a kind of screw disassembling tool according to claim 1 is characterized in that, described impact body (61) is bullet.

4. a kind of screw disassembling tool according to claim 1 is characterized in that, the two sides of described boss are the plane about drift axis symmetry.

5. a kind of screw disassembling tool according to claim 1 is characterized in that, the two sides of described drift base are the plane about drift base axis symmetry.