CN215318375U - Small-space nut fastening device - Google Patents
Small-space nut fastening device Download PDFInfo
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- CN215318375U CN215318375U CN202121164021.9U CN202121164021U CN215318375U CN 215318375 U CN215318375 U CN 215318375U CN 202121164021 U CN202121164021 U CN 202121164021U CN 215318375 U CN215318375 U CN 215318375U
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- nut
- driven
- bevel gear
- gear shaft
- gear
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Abstract
The utility model discloses a small-space nut fastening device which comprises a power mechanism, a transmission mechanism and a nut sleeve, wherein the transmission mechanism comprises a driving bevel gear, a driven bevel gear and a support, the power mechanism is in transmission connection with the driving bevel gear, the driving bevel gear is in rotational connection with the support, the driven bevel gear is in rotational connection with the support, the driving bevel gear is meshed with the driven bevel gear, and the driven bevel gear is fixedly connected with the nut sleeve. According to the utility model, power is transmitted by meshing the driving bevel gear and the driven bevel gear, and the nut fastening device is integrally L-shaped, so that the nut fastening device can conveniently extend into a narrow space to fasten the nut, the working efficiency is improved, and the safety risk of long-time construction of constructors in a foundation pit is avoided.
Description
Technical Field
The utility model relates to the technical field of production maintenance tools, in particular to a small-space nut fastening device.
Background
The fastening device of the existing railway concrete pillar horizontal plate is generally a factory-shaped bolt, then in the fastening process, a constructor needs to enter a foundation pit to stretch a hand into the space between the horizontal plate and the pit wall for operation, the gap between the horizontal plate and the pit wall is small, the constructor is difficult to operate, and the construction time is long. Meanwhile, certain potential safety hazards exist. Along with the development of national railways, more and more railway engineering is the existing line transformation engineering in the future, need to guarantee constructor safety and effectively improve work efficiency simultaneously, improve existing line construction skylight utilization ratio, consequently need a nut adapter sleeve device who is applicable to little space.
SUMMERY OF THE UTILITY MODEL
The utility model provides a small-space nut fastening device for solving the problems of difficult nut fastening operation, long construction time, potential safety hazards and the like in the existing small space.
In order to achieve the technical purpose, the utility model discloses a small-space nut fastening device which comprises a power mechanism, a transmission mechanism and a nut sleeve, wherein the transmission mechanism comprises a driving bevel gear, a driven bevel gear and a support, the power mechanism is in transmission connection with the driving bevel gear, the driving bevel gear is in rotary connection with the support, the driven bevel gear is in rotary connection with the support, the driving bevel gear is meshed with the driven bevel gear, and the driven bevel gear is fixedly connected with the nut sleeve.
Furthermore, a driving gear shaft is fixed on the driving umbrella-shaped gear, the driving gear shaft is rotatably connected with the support, and one end, far away from the driving umbrella-shaped gear, of the driving gear shaft is fixedly connected with the power mechanism.
Furthermore, the driving gear shaft is rotatably connected with the support through a first bearing, the driving gear shaft is fixedly connected with an inner ring of the first bearing, and an outer ring of the first bearing is fixedly connected with the support.
Furthermore, a driven gear shaft is fixed on the driven umbrella-shaped gear, the driven gear shaft is rotatably connected with the bracket, and one end, far away from the driven umbrella-shaped gear, of the driven gear shaft is fixedly connected with the nut sleeve.
Furthermore, the driven gear shaft is rotatably connected with the support through a second bearing, the driven gear shaft is fixedly connected with an inner ring of the second bearing, and an outer ring of the second bearing is fixedly connected with the support.
Further, the power mechanism is a pneumatic motor or an electric motor.
Further, power unit is manual rotatory bracelet.
Furthermore, a plurality of limiting blocks are uniformly distributed on the inner wall of the nut sleeve along the circumferential direction, and the limiting blocks are detachably connected with the nut sleeve.
Furthermore, a limiting hole for placing the limiting block is formed in the wall of the nut sleeve, the limiting hole is communicated with the inner cavity of the nut sleeve, the limiting block is installed in the limiting hole, and the inner end of the limiting block is located in the inner cavity of the nut sleeve.
Furthermore, a hoop for fixing the limiting block is sleeved on the outer wall of the nut sleeve.
The utility model has the beneficial effects that:
(1) the small-space nut fastening device transmits power by meshing the driving bevel gear and the driven bevel gear, and the nut fastening device is integrally L-shaped, so that the nut fastening device can conveniently extend into a narrow space to fasten a nut, the working efficiency is improved, the operation time of a constructor in a pit is reduced, and the safety risk of the constructor in a foundation pit for a long time is avoided.
(2) The nut sleeve is internally provided with the limiting block, so that the nut is prevented from sliding to the deep part of the nut sleeve during fastening, the fastening effect is ensured, and the nut sleeve is suitable for bolts with various lengths.
Drawings
FIG. 1 is a schematic structural view of a small space nut tightening device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention;
FIG. 3 is a longitudinal cross-sectional view of a nut sleeve of an embodiment of the present invention.
In the figure, the position of the upper end of the main shaft,
1. a power mechanism;
2. a transmission mechanism; 21. a driving bevel gear; 22. a driven bevel gear; 23. a support; 24. A driving gear shaft; 25. a driven gear shaft;
3. a nut socket; 31. a limiting block; 32. a limiting hole; 33. and (5) clamping a hoop.
Detailed Description
The small space nut tightening device provided by the present invention will be explained and explained in detail with reference to the drawings attached to the specification.
As shown in fig. 1, the embodiment specifically discloses a small-space nut fastening device, which includes a power mechanism 1, a transmission mechanism 2 and a nut sleeve 3, wherein the power mechanism 1 provides a rotation power, the transmission mechanism 2 transmits the rotation power to the nut sleeve 3, the nut sleeve 3 is connected with a nut, the shape of the inner cavity of the nut sleeve 3 is matched with the shape of the outer wall of the nut, the nut is clamped in the nut sleeve 3, and the nut sleeve 3 rotates to drive the nut to rotate for fastening. As shown in fig. 2, the transmission mechanism 2 includes a driving bevel gear 21, a driven bevel gear 22 and a bracket 23, the power mechanism 1 is in transmission connection with the driving bevel gear 21, the driving bevel gear 21 is in rotational connection with the bracket 23, the driven bevel gear 22 is in rotational connection with the bracket 23, the driving bevel gear 21 is engaged with the driven bevel gear 22 to form a right-angle structure, so that the nut fastening device is L-shaped as a whole, and the driven bevel gear 22 is fixedly connected with the nut sleeve 3. The nut sleeve 3 can extend into a narrow space to be connected with the nut, a constructor can provide power by operating from one side of the power mechanism 1, and the constructor can fasten the nut only by standing on a foundation pit.
As shown in fig. 1, a driving gear shaft 24 is fixed on the driving bevel gear 21, the driving gear shaft 24 is rotatably connected with the bracket 23, and one end of the driving gear shaft 24 far away from the driving bevel gear 21 is fixedly connected with the power mechanism 1. The driving gear shaft 24 is fixed at the center of the driving bevel gear 21, and the driving gear shaft 24 is coaxially connected with the power mechanism 1. The driving gear shaft 24 is rotatably connected with the support 23 through a first bearing, the driving gear shaft 24 is fixedly connected with an inner ring of the first bearing, and an outer ring of the first bearing is fixedly connected with the support 23. The bracket 23 is provided with a through hole for the driving gear shaft 24 to pass through, and the first bearing is welded in the through hole.
A driven gear shaft 25 is fixed on the driven bevel gear 22, the driven gear shaft 25 is rotatably connected with the bracket 23, and one end of the driven gear shaft 25 far away from the driven bevel gear 22 is fixedly connected with the nut sleeve 3. A driven gear shaft 25 is fixed at the center of the driven bevel gear 22, and the driven gear shaft 25 is coaxially connected to the nut socket 3. The driven gear shaft 25 is rotatably connected with the bracket 23 through a second bearing, the driven gear shaft 25 is fixedly connected with an inner ring of the second bearing, and an outer ring of the second bearing is fixedly connected with the bracket 23. The bracket 23 is provided with a through hole through which the driven gear shaft 25 passes, and the second bearing is welded in the through hole.
In this embodiment, the bracket 23 has a cubic cavity inside, the driving bevel gear and the driven bevel gear are engaged with each other in the cubic cavity, and the first bearing is rotatably connected to two opposite walls of the cubic cavity.
The power mechanism 1 is a pneumatic motor or an electric motor, and can be operated by one key to start the pneumatic motor or the electric motor to generate rotary power.
In some embodiments, the power mechanism 1 is a manual rotation bracelet, and rotation power is provided by rotating the manual rotation bracelet.
As shown in fig. 3, a plurality of stoppers 31 are uniformly distributed on the inner wall of the nut sleeve 3 along the circumferential direction, and the stoppers 31 are detachably connected with the nut sleeve 3. The limiting block 31 is used for limiting the depth of the nut entering the inner cavity of the nut sleeve 3, the nut is prevented from sliding to the deep part of the inner cavity in the fastening process, and a good fastening effect is guaranteed. The wall of the nut sleeve 3 is provided with a limiting hole 32 for placing a limiting block 31, the limiting hole 32 is communicated with the inner cavity of the nut sleeve 3, the limiting block 31 is installed in the limiting hole 32, and the inner end of the limiting block 31 is located in the inner cavity of the nut sleeve 3. The limiting block 31 is in a spherical or cubic block shape, and one third or one fourth of the volume of the limiting block 31 is positioned in the inner cavity of the nut sleeve 3. In this embodiment, the number of stoppers 31 is 4. The outer wall of the nut sleeve 3 is also sleeved with a hoop 33 for fixing the limiting block 31. The clamp 33 holds the stopper 31 tightly in the stopper hole 32.
The little space nut fastener of this embodiment comes transmission power through initiative bevel gear 21 and driven bevel gear 22 meshing, and nut fastener is whole to be the L type, is convenient for stretch into narrow and small space and carries out the fastening of nut, improves work efficiency, reduces the activity duration of constructor in the hole, has also avoided the safety risk of constructor long-time in the foundation ditch construction.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a little space nut fastener, its characterized in that, includes power unit (1), drive mechanism (2) and nut sleeve (3), drive mechanism (2) are including initiative umbrella gear (21), driven umbrella gear (22) and support (23), power unit (1) with initiative umbrella gear (21) transmission is connected, initiative umbrella gear (21) with support (23) rotate to be connected, driven umbrella gear (22) with support (23) rotate to be connected, initiative umbrella gear (21) with driven umbrella gear (22) meshing, driven umbrella gear (22) with nut sleeve (3) fixed connection.
2. The small space nut fastening device according to claim 1, characterized in that a driving gear shaft (24) is fixed on the driving umbrella-shaped gear (21), the driving gear shaft (24) is rotatably connected with the bracket (23), and one end of the driving gear shaft (24) far away from the driving umbrella-shaped gear (21) is fixedly connected with the power mechanism (1).
3. The small space nut tightening device according to claim 2, characterized in that the driving gear shaft (24) is rotatably connected with the bracket (23) through a first bearing, the driving gear shaft (24) is fixedly connected with an inner ring of the first bearing, and an outer ring of the first bearing is fixedly connected with the bracket (23).
4. The small space nut tightening device according to claim 1 or 2, characterized in that a driven gear shaft (25) is fixed to the driven bevel gear (22), the driven gear shaft (25) is rotatably connected to the bracket (23), and an end of the driven gear shaft (25) remote from the driven bevel gear (22) is fixedly connected to the nut socket (3).
5. The small space nut tightening device according to claim 4, characterized in that the driven gear shaft (25) is rotatably connected with the bracket (23) through a second bearing, the driven gear shaft (25) is fixedly connected with an inner race of the second bearing, and an outer race of the second bearing is fixedly connected with the bracket (23).
6. The small space nut tightening device according to claim 1, characterized in that the power mechanism (1) is a pneumatic motor or an electric motor.
7. The small space nut tightening device according to claim 1, characterized in that the power mechanism (1) is a hand-operated rotary bracelet.
8. The small-space nut fastening device as claimed in claim 1, characterized in that a plurality of stoppers (31) are uniformly distributed on the inner wall of the nut sleeve (3) along the circumferential direction, and the stoppers (31) are detachably connected with the nut sleeve (3).
9. The small space nut fastening device according to claim 8, characterized in that the wall of the nut sleeve (3) is provided with a limiting hole (32) for placing the limiting block (31), the limiting hole (32) is communicated with the inner cavity of the nut sleeve (3), the limiting block (31) is installed in the limiting hole (32), and the inner end of the limiting block (31) is located in the inner cavity of the nut sleeve (3).
10. The small space nut tightening device according to claim 9, characterized in that the outer wall of the nut socket is further covered with a collar (33) for fixing the stopper (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164021.9U CN215318375U (en) | 2021-05-27 | 2021-05-27 | Small-space nut fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164021.9U CN215318375U (en) | 2021-05-27 | 2021-05-27 | Small-space nut fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215318375U true CN215318375U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121164021.9U Active CN215318375U (en) | 2021-05-27 | 2021-05-27 | Small-space nut fastening device |
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| CN (1) | CN215318375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213846A (en) * | 2022-06-28 | 2022-10-21 | 扎赉诺尔煤业有限责任公司 | Left-hand bolt nut installer |
-
2021
- 2021-05-27 CN CN202121164021.9U patent/CN215318375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213846A (en) * | 2022-06-28 | 2022-10-21 | 扎赉诺尔煤业有限责任公司 | Left-hand bolt nut installer |
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