CN220279525U - Hollow shaft hole assembly tool - Google Patents
Hollow shaft hole assembly tool Download PDFInfo
- Publication number
- CN220279525U CN220279525U CN202322297658.0U CN202322297658U CN220279525U CN 220279525 U CN220279525 U CN 220279525U CN 202322297658 U CN202322297658 U CN 202322297658U CN 220279525 U CN220279525 U CN 220279525U
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- hollow shaft
- hole
- bamboo
- shaped rod
- protruding part
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Abstract
The utility model discloses a hollow shaft hole assembly tool, which comprises: the bamboo-shaped rod comprises a rod body and a plurality of protruding parts which are arranged on the rod body and are distributed at intervals along the axial direction, and the radial size of each protruding part is smaller than the diameter of a through hole of the hollow shaft; the annular piece is arranged around the rod body during assembly, two end faces of the annular piece are respectively abutted against the end face of the protruding part and the end face of the hollow shaft during pushing of the hollow shaft to move, the radial dimension of a through hole in the middle of the annular piece is smaller than that of the protruding part, and the radial dimension of the annular piece is larger than that of the through hole of the hollow shaft; and the driving piece is used for driving the bamboo-shaped rod to move relative to the parts during assembly.
Description
Technical Field
The utility model relates to the technical field of mechanical tools, in particular to a hollow shaft hole assembly tool.
Background
In mechanical products, the connection between the components with the mutual rotation requirements is often achieved by means of a cooperation of a shaft and a hole, and the shaft is often a hollow shaft with a through hole in the middle. At present, the assembly of hollow spindles of products produced in various small batches is usually completed by hammering copper bars and assisting in visual observation, and the assembly mode is difficult to ensure the hole accuracy, has low assembly efficiency and can cause damage to the outer surface of a member.
Disclosure of Invention
The utility model aims to provide a hollow shaft hole assembling tool capable of improving assembling efficiency between a hollow shaft and a part with an installing hole.
The utility model discloses a hollow shaft hole assembly tool, which is used for loading a hollow shaft with a through hole in the middle into a part with a mounting hole matched with the outer peripheral surface of the hollow shaft, and comprises the following components:
the bamboo-shaped rod comprises a rod body and a plurality of protruding parts which are arranged on the rod body and are distributed at intervals along the axial direction, and the radial size of each protruding part is smaller than the diameter of a through hole of the hollow shaft;
the annular piece is arranged around the rod body during assembly, two end faces of the annular piece are respectively abutted against the end face of the protruding part and the end face of the hollow shaft during pushing of the hollow shaft to move, the radial dimension of a through hole in the middle of the annular piece is smaller than that of the protruding part, and the radial dimension of the annular piece is larger than that of the through hole of the hollow shaft;
the driving piece is used for driving the bamboo-shaped rod to move relative to the parts during assembly;
the hollow shaft bore assembly tool is configured to: during assembly, the bamboo-shaped rod is inserted into the through hole of the hollow shaft, the driving piece drives the bamboo-shaped rod to move along a first direction parallel to the axial direction of the rod body, the annular piece is pushed to press the hollow shaft through the protruding part in abutting fit with the annular piece, so that the hollow shaft is installed in the mounting hole, and after the bamboo-shaped rod moves along a direction opposite to the first direction, the annular piece can move along the first direction to the end face of the next protruding part adjacent to the protruding part in current fit for abutting fit.
In some embodiments, the end face of the projection abuts the ring member when assembled, the cross-section of the projection diverging in the first direction.
In some embodiments, the protrusion is a frustoconical rod segment, and the bamboo joint shaped rod further comprises a plurality of cylindrical rod segments, the plurality of cylindrical rod segments and the plurality of frustoconical rod segments being alternately arranged.
In some embodiments, the through hole in the middle of the ring member is an elastic hole with a variable hole diameter, so that the hole diameter of the through hole in the middle of the ring member is enlarged by the outer circumferential surface of the protruding portion when moving in the first direction.
In some embodiments, the elastic member is further included, and the ring member includes two semi-ring members, which are formed by wrapping the elastic member.
In some embodiments, annular grooves are formed on the outer peripheral surfaces of the two semi-annular members, and the elastic member is an O-ring disposed in the annular grooves.
The through hole in the middle of the annular piece is a wedge-shaped hole near the end of the hollow shaft.
In some embodiments, the driving member is a jack that mates with the bamboo-shaped rod.
According to the hollow shaft hole assembly tool provided by the utility model, the bamboo-shaped rod with the plurality of protruding parts, the annular part matched with the protruding parts and the driving part for driving the bamboo-shaped rod to move are arranged, the bamboo-shaped rod can efficiently and safely push the hollow shaft into the mounting hole of the part, and meanwhile, after the bamboo-shaped rod moves along the reverse direction of the first direction, the annular part can move to the next protruding part to be matched with the next protruding part, so that the hollow shaft can smoothly and reliably reach the matched mounting position of the mounting hole when the bamboo-shaped rod continuously moves in the first direction.
Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
FIG. 1 is a schematic cross-sectional view of a hollow shaft hole assembly tool according to an embodiment of the present utility model when assembling a hollow shaft;
FIG. 2 is a schematic view of the construction of the bamboo-shaped rod shown in FIG. 1;
FIG. 3 is an enlarged partial schematic view of the hollow shaft hole assembly tool of FIG. 1;
fig. 4 is a schematic cross-sectional view of the ring shown in fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. 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.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for defining the components, and are merely for convenience in distinguishing the corresponding components, and the terms are not meant to have any special meaning unless otherwise indicated, so that the scope of the present utility model is not to be construed as being limited.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative 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 in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, the hollow shaft hole assembly tool of the present embodiment is for loading a hollow shaft 5 having a through hole in the middle into a component part having a mounting hole fitted to the outer peripheral surface of the hollow shaft 5, and includes a bamboo joint-shaped rod 1, a ring-shaped member 2, and a driving member. In the embodiment shown in the figures, the hollow shaft is a cylindrical hollow shaft, a cylindrical through hole is formed in the hollow shaft, and parts matched with the outer peripheral surface of the hollow shaft 5 consist of a first connecting piece 6, a second connecting piece 7 and a third connecting piece 8.
The bamboo-shaped rod 1 comprises a rod body and a plurality of protruding parts 11 which are arranged on the rod body and are distributed at intervals along the axial direction, and the radial size of each protruding part 11 is smaller than the diameter of the through hole of the hollow shaft 5, so that the bamboo-shaped rod 1 can be inserted into and penetrate through the through hole in the middle of the hollow shaft 5 when assembled, and can axially move relative to the hollow shaft 5 when the hollow shaft 5 is installed, as shown in the figure.
The ring-shaped part 2 is arranged around the rod body during assembly, when the hollow shaft 5 is installed, the two end faces of the ring-shaped part 2 respectively abut against the end face of the protruding part 11 and the end face of the hollow shaft 5 during pushing of the hollow shaft 5, the radial dimension of a through hole in the middle of the ring-shaped part 2 during pushing of the hollow shaft 5 is smaller than the radial dimension of the protruding part 11, and the radial dimension of the ring-shaped part 2 during pushing of the hollow shaft 5 is larger than the size of the through hole of the hollow shaft 5, so that the protruding part pushes the ring-shaped part 2 along the axial direction of the bamboo-shaped rod, and the ring-shaped part 2 can push the hollow shaft 5 to move into the installation hole.
The driving piece is used for driving the relative spare part of bamboo-shaped pole 1 to remove when the assembly, and in the embodiment as shown in the figure, the driving piece be with bamboo-shaped pole 1's one end complex jack, the jack other end is installed on the terminal surface of spare part to can drive the relative spare part of bamboo-shaped pole remove. In some embodiments not shown in the drawings, the end of the bamboo-shaped rod can be provided with a screw or a nut, and the driving member can also be a nut or a screw matched with the screw or the nut, and the driving member drives the bamboo-shaped rod to move along the axial direction through the matching of the screw and the nut.
The hollow shaft bore assembly tool is configured to: during assembly, the bamboo-shaped rod 1 is inserted into the through hole of the hollow shaft 5, the driving part drives the bamboo-shaped rod 1 to move along a first direction parallel to the axial direction of the rod body, the annular part 2 is pushed by the protruding part 11 which is in abutting fit with the annular part 2 to press the hollow shaft 5, so that the hollow shaft 5 is installed in the mounting hole, after the hollow shaft 5 is pushed into a part of the mounting hole, the driving part is utilized or the bamboo-shaped rod 1 is manually moved along the direction opposite to the first direction, even if the bamboo-shaped rod 1 is retreated, the annular part 2 can be moved to the end face of the next protruding part 11 adjacent to the protruding part 11 which is in current fit along the first direction for abutting fit, namely, the annular part 2 can be moved to the end face of the next protruding part in abutting fit with the end face of the next protruding part in a manual mode, so that when the bamboo-shaped rod 1 continues to move along the first direction, the protruding part can continue to push the hollow shaft into the mounting hole further through the annular part, and therefore the bamboo-shaped rod 1 can not be too long, and the bamboo-shaped rod 1 can be required to be reduced in size, and the driving part can be driven to be reduced.
The hollow shaft hole assembly tool of this embodiment through setting up the bamboo joint shape pole 1 that has a plurality of bulge 11, with bulge 11 complex ring 2, the driving piece that drives bamboo joint shape pole 1 and remove, bamboo joint shape pole 1 can advance in the mounting hole of spare part with hollow shaft 5 high-efficient safety, simultaneously, remove the back along the opposite direction of first direction through bamboo joint shape pole 1, ring 2 can remove next bulge 11 and the cooperation of next bulge 11, thereby bamboo joint shape pole 1 when continuing to remove towards first direction, can make hollow shaft 5 arrive the cooperation mounted position with the mounting hole smoothly reliably.
In some embodiments, the end face of the projection 11 abuts the ring 2 when assembled, the cross section of the projection 11 diverging in the first direction. The cross section of the protruding part 11 is vertical to the axial section of the bamboo-shaped rod 1, and gradually expands along the first direction, namely, the direction in which the hollow shaft is pushed into the mounting hole, so that when the bamboo-shaped rod moves backwards along the annular part, the outer peripheral surface of the protruding part 11 can better guide the annular part, and the annular part can move smoothly and reliably.
In some embodiments, as shown, the protrusion 11 is a truncated cone-shaped rod segment 12, and the bamboo-shaped rod 1 further includes a plurality of cylindrical rod segments, and the plurality of cylindrical rod segments and the plurality of truncated cone-shaped rod segments 12 are alternately arranged. In some embodiments, the frustoconical rod segment has a taper of 3 ° ± 0.5 °.
In some embodiments, the through hole in the middle of the ring member 2 is an elastic hole with a variable pore size, so that the pore size of the through hole in the middle of the ring member 2 is widened by the outer circumferential surface of the protruding portion 11 when moving in the first direction. That is, the through hole of the ring member 2 can be expanded and contracted, and when the ring member 2 pushes the hollow shaft to move, the through hole of the ring member 2 can be contracted to tightly surround the bamboo-shaped rod, so that the pushing force of the protruding part can be smoothly transmitted through the ring member 2. When the bamboo-shaped rod pushes the hollow shaft into a part of the mounting hole and then retreats, the through hole of the annular piece 2 can be opened by the outer peripheral surface of the protruding part in the axial moving process, so that the annular piece 2 smoothly passes through the outer peripheral surface of the protruding part to reach the end surface of the next protruding part to be matched with the end surface of the next protruding part.
In some embodiments, as shown in the figures, the hollow shaft hole assembly tool further comprises an elastic member, the ring member 2 comprises two semi-ring members 2, and the two semi-ring members 2 are formed by wrapping the elastic member. The elastic piece comprises a stretchable piece such as a elastic rope. The ring-shaped piece comprises two split-type semi-ring-shaped pieces, when the hollow shaft hole assembly tool is assembled, the two semi-ring-shaped pieces are firstly wound around the bamboo joint-shaped rod, and then the elastic piece wraps the two semi-ring-shaped pieces, so that the ring-shaped piece is formed. When the hollow shaft is assembled, the movable bamboo-shaped rod pushes the annular piece to push the hollow shaft to enter a part of the mounting hole through the protruding part, then when the bamboo-shaped rod retreats, the two semi-annular pieces are away from each other, so that the aperture of the through hole positioned in the middle between the two semi-annular pieces is increased, the two semi-annular pieces can move to the end face of the next protruding part, then the two semi-annular pieces shrink under the action of the elastic piece, and the bamboo-shaped rod is tightly wrapped continuously.
In some embodiments, as shown, the annular grooves 3 are formed on the outer peripheral surfaces of the two semi-annular members 2, and the elastic members are O-rings provided in the annular grooves 3.
As shown in fig. 3 and 4, the through hole in the middle of the ring member is a wedge-shaped hole near the end of the hollow shaft. The taper of the wedge-shaped hole is 6-13 degrees.
In some embodiments, the driving member is a jack 4 that mates with the bamboo-shaped rod 1.
In some embodiments, the fit clearance between the lug of the bamboo-shaped rod and the through hole of the hollow shaft is (+1 mm, +2 mm), and the fit clearance between the lug of the bamboo-shaped rod and the inner hole in which the jack is fitted is (+0.5 mm, +1 mm).
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (8)
1. A hollow shaft hole assembling tool for assembling a hollow shaft having a through hole in the middle thereof into a component having a mounting hole fitted to the outer peripheral surface of the hollow shaft, comprising:
the bamboo-shaped rod comprises a rod body and a plurality of protruding parts which are arranged on the rod body and are distributed at intervals along the axial direction, and the radial size of each protruding part is smaller than the diameter of a through hole of the hollow shaft;
the annular piece is arranged around the rod body during assembly, two end faces of the annular piece are respectively abutted against the end face of the protruding part and the end face of the hollow shaft during pushing of the hollow shaft to move, the radial dimension of a through hole in the middle of the annular piece is smaller than that of the protruding part, and the radial dimension of the annular piece is larger than that of the through hole of the hollow shaft;
the driving piece is used for driving the bamboo-shaped rod to move relative to the parts during assembly;
the hollow shaft bore assembly tool is configured to: during assembly, the bamboo-shaped rod is inserted into the through hole of the hollow shaft, the driving piece drives the bamboo-shaped rod to move along a first direction parallel to the axial direction of the rod body, the annular piece is pushed to press the hollow shaft through the protruding part in abutting fit with the annular piece, so that the hollow shaft is installed in the mounting hole, and after the bamboo-shaped rod moves along a direction opposite to the first direction, the annular piece can move along the first direction to the end face of the next protruding part adjacent to the protruding part in current fit for abutting fit.
2. The hollow shaft hole assembly tool according to claim 1, wherein an end face of the protruding portion abuts against the ring member at the time of assembly, and a cross section of the protruding portion diverges in the first direction.
3. The hollow shaft hole assembly tool of claim 2 wherein the projection is a frustoconical rod segment, the bamboo joint shaped rod further comprising a plurality of cylindrical rod segments, the plurality of cylindrical rod segments alternating with the plurality of frustoconical rod segments.
4. The hollow shaft hole assembling tool according to claim 2, wherein the through hole in the middle of the ring member is an elastic hole of a variable pore size so that the pore size of the through hole in the middle of the ring member is widened by the outer peripheral surface of the protruding portion when moving in the first direction.
5. The hollow shaft hole assembly tool of claim 2 further comprising an elastic member, wherein the ring member comprises two semi-ring members, the two semi-ring members being formed by wrapping the elastic member.
6. The tool for assembling a hollow shaft hole according to claim 5, wherein annular grooves are formed on the outer peripheral surfaces of the two semi-annular members, and the elastic member is an O-ring provided in the annular grooves.
7. The hollow shaft hole assembling tool according to claim 1, wherein the through hole in the middle of the ring member is a wedge-shaped hole near the end of the hollow shaft.
8. The hollow shaft hole assembly tool of claim 1 wherein the driving member is a jack engaged with the bamboo-shaped rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297658.0U CN220279525U (en) | 2023-08-24 | 2023-08-24 | Hollow shaft hole assembly tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322297658.0U CN220279525U (en) | 2023-08-24 | 2023-08-24 | Hollow shaft hole assembly tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220279525U true CN220279525U (en) | 2024-01-02 |
Family
ID=89328328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322297658.0U Active CN220279525U (en) | 2023-08-24 | 2023-08-24 | Hollow shaft hole assembly tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220279525U (en) |
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2023
- 2023-08-24 CN CN202322297658.0U patent/CN220279525U/en active Active
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