CN214446027U - Disassembling tool - Google Patents

Abstract

The utility model provides a decomposition tool can realize the quick connection and the split of decomposition tool and the work piece that is decomposed. The disassembling tool comprises a hook block assembly and a force application assembly, wherein the hook block assembly comprises a base, two hook blocks arranged on two sides of the base and a spring arranged between the two hook blocks, the inner sides of the hook blocks are provided with force application parts protruding out of the base, the base comprises a sliding guide part, the hook blocks comprise sliding guide matching parts, the sliding guide parts are movably matched with the sliding guide matching parts, and the two hook blocks retractably extend out of the base by elastic force provided by the spring so that the outer sides of the hook blocks clamp disassembled workpieces; the force application assembly comprises a pull rod which is used for driving the hook block assembly to move.

Description

Disassembling tool

Technical Field

The utility model relates to a frock clamp technical field, concretely relates to decomposition tool.

Background

The structure of the low-pressure turbine shaft assembly 100 is shown in fig. 1, a breather pipe front support 103 located in a shaft cavity 102 of a low-pressure turbine shaft 101 is used for supporting an axis breather pipe 105 from a front end 104, a small clearance fit is adopted between the outer wall of the breather pipe front support 103 and an inner hole 106 of the low-pressure turbine shaft 101, but in order to prevent air leakage, a rubber ring 107 is adopted between the breather pipe front support 103 and the inner hole 106 of the low-pressure turbine shaft 101 for sealing, and due to the existence of the rubber ring 107, a larger tightness exists between the breather pipe front support 103 and the inner hole 106 of the low-pressure turbine shaft 101, and a larger external force is needed to realize the decomposition of the breather pipe front support 103.

Under conventional techniques, a long rod (not shown) is inserted from the rear end 108 of the low-pressure turbine shaft 101, the breather pipe front support 103 is ejected from the shaft cavity 102 of the low-pressure turbine shaft 101, in this process, although the disassembly tool is simple, since the axial cavity 102 of the low-pressure turbine shaft 101 is long, the axial distance L between the rear end face 109 of the low-pressure turbine shaft 101 and the rear end face 110 of the breather pipe front support 103 has a value of about 2000mm, under manual operation, the long rod is difficult to move within the shaft cavity 102 along the axis of the low-pressure turbine shaft 101, in the decomposition process, the risk of scraping the long rod and the inner wall of the inner hole 106 of the low-pressure turbine shaft 101 is large, because the inner wall of the inner hole 106 of the low-pressure turbine shaft 101 is coated with the protective coating, the coating is easy to fall off in the scraping process, so that the metal body of the low-pressure turbine shaft 1 is contacted with air to be oxidized, and the corrosion of the low-pressure turbine shaft 1 is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a decomposition tool can realize the quick connection and the split of decomposition tool and the work piece that is decomposed.

In order to realize the decomposition instrument of purpose, including colluding a subassembly and application of force subassembly, collude a subassembly and include: a base; the two hook blocks are arranged on two sides of the base, and force application parts protruding out of the base are arranged on the inner sides of the hook blocks; and a spring disposed between the two hook blocks; the base comprises a sliding guide part, the hook blocks comprise sliding guide matching parts, the sliding guide parts are movably matched with the sliding guide matching parts, and the two hook blocks retractably extend out of the base by the elastic force provided by the spring so as to clamp the decomposed workpieces on the outer sides of the hook blocks; the force application assembly comprises a pull rod which is used for driving the hook block assembly to move.

One or more embodiments of decomposition instrument in, the base include base and apron, the base with apron detachably connects, the base provides the connection the base the logical groove of both sides, collude the piece with the spring mounting is in logical inslot, the apron includes two side arms and boss, two side arms correspond respectively the base both sides, every the side arm is provided with one and dodges the groove, application of force portion passes dodge the groove and protrusion in the apron, the boss inserts logical groove is provided with the spring spacing groove.

In one or more embodiments of the disassembling tool, the side arm is configured to limit a displacement of the hook block perpendicular to an extending or retracting direction, the avoiding groove is configured as the sliding guide portion, and the force applying portion is configured as the sliding guide engaging portion.

In one or more embodiments of the disassembling tool, the hook block assembly further includes a hook block limiting portion for making the hook block symmetrical with respect to a center line of the pull rod when the hook block extends out.

In one or more embodiments of the disassembling tool, the hook block limiting part includes a limiting pin or a limiting boss or a limiting stopper.

In one or more embodiments of the disassembling tool, the hook block limiting part provides the force applying part or/and provides the sliding guide part and the sliding guide matching part.

In one or more embodiments of the decomposition tool, the sliding guide part is a guide groove or a guide pin or a guide boss, and correspondingly, the sliding guide matching part is a surface of the hook block or a guide pin or a guide boss or a guide groove.

In one or more embodiments of the disintegration tool, the force application assembly further comprises a slide hammer movable on the pull rod and a blocking member disposed at a free end of the pull rod opposite the hook block assembly, the slide hammer providing an inertial force disintegrating the workpiece by striking the blocking member.

In one or more embodiments of the disassembling tool, the force application assembly further includes a nut and a limiting member, the limiting member is used for limiting an axial position of the nut, and the nut is in threaded fit with the pull rod.

In one or more embodiments of the disassembly tool, the force application assembly further comprises a pressure cylinder, and the pull rod is arranged integrally with or connected to a piston rod of the pressure cylinder.

The decomposing tool has simple structure, low processing and manufacturing cost, convenient operation and high disassembly efficiency, can drive the two hook blocks to retract towards the inner side and compress the spring by pinching the two force application parts of the decomposing tool with hands, so that the distance between the outer sides of the two hook blocks is smaller than the size of the inner cavity of the decomposed workpiece, the hook block assembly is inserted into the inner cavity of the decomposed workpiece, the two force application parts are loosened, the two hook blocks can extend out of the base under the action of the elastic force of the spring, so that the outer sides of the hook blocks clamp structures such as a boss or a hole groove of the inner cavity of the decomposed workpiece, the connection between the decomposing tool and the decomposed workpiece is rapidly and reliably realized, the hook block assembly is pulled by the force application assembly, the decomposed workpiece is driven to move, the decomposition and disassembly of the decomposed workpiece are realized, after the decomposition is completed, the two force application parts are pinched again to retract the two hook blocks, the disassembly tool can be quickly removed from the disassembled workpiece. The decomposition tool can realize rapid decomposition of the front support of the vent pipe from the front end of the low-pressure turbine shaft, avoids falling of a coating caused by scraping of a long rod on an inner hole of the low-pressure turbine shaft in a conventional process, and improves the safety of the decomposition process. The decomposition tool is not only suitable for decomposing the front support of the breather pipe of the low-pressure turbine shaft, but also suitable for decomposing other workpieces with inner cavities.

Drawings

The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a schematic representation of the construction of a low pressure turbine shaft assembly according to the prior art.

FIG. 2 is a schematic illustration of a disassembly tool disassembling a snorkel front mount according to one or more embodiments.

Fig. 3 is a cross-sectional schematic view of a decomposition tool according to one or more embodiments.

Fig. 4 is a perspective view of a hook block assembly according to one or more embodiments.

Fig. 5 is a schematic top view of a hook block assembly according to one or more embodiments.

Fig. 6 is a schematic view of a hook block assembly with a cover plate removed according to one or more embodiments.

Fig. 7 is a schematic view of a cover plate of a hook block assembly according to one or more embodiments.

Detailed Description

The following discloses many different embodiments or examples for implementing the subject technology described. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and are not intended to limit the scope of the present invention. It is to be noted that the drawings are designed solely as examples and are not to scale, and should not be construed as limiting the scope of the invention as it is actually claimed. Furthermore, certain features, structures, or characteristics of one or more embodiments of the invention may be combined as appropriate.

The disassembly tool 200, as shown in fig. 2-7, includes a hook block assembly 201 and a force application assembly 202. The hook block assembly 201 comprises a base 1, two hook blocks 2 arranged on two sides 11 of the base 1 and a spring 3 arranged between the two hook blocks 2, the base 1 comprises a sliding guide portion 12, the hook blocks 2 comprise sliding guide matching portions 21, and the sliding guide portions 12 are movably matched with the sliding guide matching portions 21 so as to provide guide for sliding of the hook blocks 2, which will be described in detail later. The spring force provided by the spring 3 retractably extends the two hook blocks 2 out of the base 1 so that the outer sides 22 of the hook blocks 2 catch the disassembled workpiece, such as the aforementioned snorkel front support 103. The inner side 23 of the hook block 2 is provided with a force application part 24 protruding from the base 1, so that the position of the hook block 2 can be adjusted by pinching the force application part 24 with a hand. The force application assembly 202 includes a pull rod 4, and the pull rod 4 is connected to the hook block assembly 201, for example, by screwing, or clipping, or welding, or other connection methods, so as to drive the hook block assembly 201 to move.

In the description of the present invention, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixedly connected, detachably connected, or integrally connected, and further, when a first element is described as being connected or coupled to a second element, the description includes embodiments in which the first and second elements are directly connected or coupled to each other, and embodiments in which one or more other intervening elements are added to indirectly connect or couple the first and second elements to each other.

Therefore, the two force applying parts 24 of the disassembling tool 200 are pinched by hands, so that the two hook blocks 2 can be driven to retract and compress the spring 3 towards the inner side 23, the distance between the outer sides 22 of the two hook blocks 2 is smaller than the size of the inner cavity of the disassembled workpiece, so that the hook block assembly 201 can be inserted into the inner cavity of the disassembled workpiece, the two force applying parts 24 are loosened, the two hook blocks 2 can extend out of the base 1 under the action of the elastic force of the spring 3, the outer sides 22 of the hook blocks 2 can clamp structures such as bosses or holes and grooves of the inner cavity of the disassembled workpiece, the connection between the disassembling tool 200 and the disassembled workpiece can be rapidly and reliably realized, the hook block assembly 201 is pulled by the force applying assembly 202, the disassembled workpiece is driven to move, the disassembled workpiece is disassembled and disassembled, after the disassembly is finished, the two force applying parts 24 are pinched again to retract the two hook blocks 2, the break-up tool 200 may be quickly removed from the work piece being broken up.

This decomposition tool 200's simple structure, processing low in manufacturing cost, the simple operation, it is efficient to dismantle, can realize the quick decomposition of breather pipe front support 103 from the front end 104 of low pressure turbine shaft 101, avoids under the conventional technology stock to scrape the coating that the hole 106 of bumping low pressure turbine shaft 101 caused and drops, improves the security of decomposition technology. The tool 200 is suitable for disassembling not only the snorkel front support 103 described in the background art, but also other workpieces with inner cavities.

The sliding guide part 12 may be provided as a guide groove and correspondingly the sliding guide fitting part 21 as a guide pin or guide boss or outer surface of the hook block 2, or the sliding guide part 12 may also be provided as a guide pin or guide boss and correspondingly the sliding guide fitting part 21 as a guide groove. Thus, the structure of the breakdown tool 200 can be further simplified to facilitate machining and assembly.

With continued reference to fig. 2-7, the base 1 includes a base 5 and a cover 6, and the base 5 and the cover 6 are removably attached, such as by fasteners, or snap-fit, or other attachment means. The base 5 provides a through groove 51 connecting both sides 11 of the base 1, and the hook block 2 and the spring 3 are installed in the through groove 51. The cover plate 6 comprises a boss 61 and two side arms 62. The boss 61 is provided on the inner side surface 63 of the cover plate 6 opposite to the through groove 51, the boss 61 is inserted into the through groove 51 and provided with a spring retaining groove 65, for example, two opposing bosses 61 are provided on the inner side surface 63, the inner sides of the two opposing bosses 61 and the inner side surface 63 of the cover plate 6 provide the spring retaining groove 65, or one "concave" shaped boss 61 with a groove in the middle portion thereof providing the spring retaining groove 65 is provided on the inner side surface 63. The size of the spring limiting groove 65 is equal to or slightly larger than the diameter of the spring 3 to limit the radial or oblique play of the spring 3 and avoid the clamping stagnation of the hook block 2 caused by the component force in the non-sliding direction (i.e. the extending or retracting direction). The two side arms 62 respectively correspond to the two sides 11 of the base 1, each side arm 62 is provided with an avoiding groove 66, the avoiding groove 66 penetrates through the inner side surface 63 and the outer side surface 64 of the cover plate 6 and is used for avoiding the force application part 24 when the hook block 2 slides, for example, the avoiding groove 66 may be a U-shaped groove with one open end as shown in fig. 4, 5 and 7, or the avoiding groove 66 may also be a long groove with two closed ends or other shapes, and the force application part 24 penetrates through the avoiding groove 66 and protrudes out of the cover plate 6.

In some embodiments, the base 1 may also be provided as a unitary structure, with the hook block 2 and the spring 3 being mounted in an internal bore of the base 1. Thus, the structure of the breakdown tool 200 can be further simplified to facilitate manufacturing.

Referring to fig. 4 and 5, the side arms 62 serve to limit displacement of the hook block 2 perpendicular to the extending or retracting direction, the through groove 51 provides the slide guide 12, and the surface of the hook block 2 provides the slide guide engagement portion 21.

Referring to fig. 2 to 6, the urging portion 24 may be provided as an integral or separate structure from the hook block 2, for example, the urging portion 24 may be provided as a boss protruding from the surface of the hook block 2, or a pin or a screw connected to the hook block 2. Thus, the structure of the breakdown tool 200 can be further simplified to facilitate manufacturing.

In some embodiments, the urging portion 24 and the avoiding groove 66 may serve as the sliding guide engaging portion 21 and the sliding guide portion 12, respectively, for example, the urging portion 24 is provided as a pin or a boss movably engaged with the avoiding groove 66 to provide a guide for the sliding of the hook block 2. Thus, the structure of the breakdown tool 200 can be further simplified to facilitate manufacturing.

With continued reference to fig. 2 to 6, the hook block assembly 201 further includes a hook block limiting portion 7 for making the hook block 2 symmetrical with respect to the central line 41 of the pull rod 4 when extending out, so as to symmetrically clamp the disassembled workpiece, and make the disassembled workpiece uniformly stressed for convenient disassembly. For example, the hook block limiting portion 7 includes a limiting pin 71 and a limiting groove 72, the limiting pin 71 is disposed on the base 1, and the limiting groove 72 is disposed on the hook block 2, or the limiting pin 71 is disposed on the hook block 2, and the limiting groove 72 is disposed on the base 1, or the hook block limiting portion 7 includes a limiting boss or a limiting stopper (not shown) or other limiting structures disposed on the base 1 or the hook block 2.

In some embodiments, the hook stopper 7 may provide the force application portion 24 or/and the sliding guide engagement portion 21 and the sliding guide portion 12. Thus, the structure of the breakdown tool 200 can be further simplified to facilitate manufacturing.

Referring to fig. 2 to 3, the force application assembly 202 further includes a sliding weight 8 and a first blocking member 9, the sliding weight 8 is movable on the pull rod 4, the first blocking member 9 is disposed at the free end 42 of the pull rod 4 opposite to the hook block assembly 201, the sliding weight 8 strikes the first blocking member 9 to provide an inertial force, so that the pull rod 4 moves, and the hook block assembly 201 and the decomposed workpiece are driven by the pull rod 4, so as to achieve the disassembly of the decomposed workpiece. The blocking member 9 may be provided as an integral or separate structure with the pull rod 4, and for example, the nut 10 may be used to limit the position of the blocking member 9 at the free end 42 so as to prevent the blocking member 9 from falling off from the free end 42. Optionally, the force application assembly 202 further includes a second blocking member 11, and the second blocking member 11 is disposed between the sliding weight 8 and the hook block assembly 201 to prevent the sliding weight 8 from striking the hook block assembly 201 or a disassembled workpiece due to a misoperation.

In other embodiments, not shown in the drawings, the force application assembly 202 further includes a threaded sleeve and a limiting member, the limiting member is used for limiting the axial position of the threaded sleeve, the threaded sleeve is in threaded fit with the pull rod 4, and the pull rod 4 is driven to move by screwing the threaded sleeve, so as to realize the disassembly of the disassembled workpiece; alternatively, the force application assembly 202 may also provide the motive force for moving the disassembled workpiece through a pressure cylinder, and the pull rod 4 is provided integrally with or connected to a piston rod of the pressure cylinder.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention, all without departing from the content of the technical solution of the present invention, fall within the scope of protection defined by the claims of the present invention.

Claims (10)

1. A decomposition tool, comprising:

collude a subassembly, include:

a base;

the two hook blocks are arranged on two sides of the base, and force application parts protruding out of the base are arranged on the inner sides of the hook blocks; and

the spring is arranged between the two hook blocks;

the base comprises a sliding guide part, the hook blocks comprise sliding guide matching parts, the sliding guide parts are movably matched with the sliding guide matching parts, and the two hook blocks retractably extend out of the base by the elastic force provided by the spring so as to clamp the decomposed workpieces on the outer sides of the hook blocks;

and the force application assembly comprises a pull rod and is used for driving the hook block assembly to move.

2. The disassembly tool of claim 1, wherein the base comprises a base and a cover plate, the base and the cover plate are detachably connected, the base provides a through groove connecting the two sides of the base, the hook block and the spring are mounted in the through groove, the cover plate comprises two side arms and a boss, the two side arms respectively correspond to the two sides of the base, each side arm is provided with an avoiding groove, the force application part passes through the avoiding groove and protrudes out of the cover plate, and the boss is inserted into the through groove and is provided with a spring limiting groove.

3. The disassembly tool of claim 2, wherein the side arm is configured to limit displacement of the hook block perpendicular to the extending or retracting direction, the escape slot is configured as the sliding guide portion, and the force application portion is configured as the sliding guide engagement portion.

4. The disassembly tool of claim 1, wherein the hook block assembly further comprises a hook block stop for making the hook block symmetrical with respect to a centerline of the drawbar when extended.

5. The disassembly tool of claim 4 wherein the hook block retention portion comprises a retention pin or a retention boss or a retention stop.

6. The disassembly tool of claim 4 wherein the hook block retention portion provides the force application portion or/and the slide guide portion and the slide guide engagement portion.

7. The disassembly tool of claim 1 wherein the sliding guide is a guide slot or a guide pin or a guide boss, and correspondingly the sliding guide engagement is a surface of the hook block or a guide pin or a guide boss or a guide slot.

8. The disintegration tool of any of claims 1 to 7, wherein said force application assembly further comprises a slide hammer movable on said pull rod and a stop disposed at a free end of said pull rod opposite said hook block assembly, said slide hammer providing an inertial force disintegrating said workpiece by striking said stop.

9. The disassembly tool of any of claims 1-7, wherein the force application assembly further comprises a threaded sleeve and a stop for limiting an axial position of the threaded sleeve, the threaded sleeve threadedly engaged with the pull rod.

10. Decomposition tool according to any one of claims 1 to 7, wherein the force application assembly further comprises a pressure cylinder, the tie rod being arranged integral with or connected to a piston rod of the pressure cylinder.

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