CN214643215U - Nut tightening mechanism - Google Patents
Nut tightening mechanism Download PDFInfo
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- CN214643215U CN214643215U CN202120342806.4U CN202120342806U CN214643215U CN 214643215 U CN214643215 U CN 214643215U CN 202120342806 U CN202120342806 U CN 202120342806U CN 214643215 U CN214643215 U CN 214643215U
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- nut
- torque wrench
- force arm
- tightening mechanism
- workpiece
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Abstract
The utility model discloses a nut tightening mechanism, which comprises a nut assembling sleeve, a nut force arm and a nut supporting pin component; one end of the nut assembling sleeve is connected with the workpiece nut, and the other end of the nut assembling sleeve is connected with the torque wrench; the nut supporting pin assembly is connected with the nut force arm, wherein the nut supporting pin assembly is assembled on a supporting shaft of a workpiece; the end part of the torque wrench is connected with a central hole of a force arm of the nut, and the torque wrench drives the nut assembling sleeve to rotate after receiving external force and screws the workpiece nut. The utility model discloses a screw up mechanism simple structure, the cooperation requirement is not high, and processing is convenient, and low cost in the assembly work process, operation simple accurate, convenient assembling is laborsaving, reduces workman's intensity of labour, shortens the assemble duration, has improved the efficiency of assembly greatly.
Description
Technical Field
The utility model relates to a screw up mechanism on the engineering machine tool speed reducer, especially support the mechanism of screwing up of axle head nut on the speed reducer.
Background
In the engineering machine tool trade, speed reducer quantity constantly increases, and various speed reducer model products all have the nut to screw up the moment problem, and little nut moment is screwed up just can with the spanner, and big nut moment is in 1000 supplyes 15000N.m, and this example nut screws up the moment and is 7500N.m, and the moment of screwing up of nut is great, and manual unable screwing up is in order to reduce workman's intensity of labour, improves assembly efficiency, the utility model provides a one set of new nut screws up mechanism and carries out the tightening of the big moment of round nut on the supporting axle.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a support axle head nut tightening mechanism on simple structure, effectual speed reducer.
The utility model discloses a realize with following technical scheme:
a nut tightening mechanism comprises a nut assembling sleeve, a nut force arm and a nut supporting pin assembly; one end of the nut assembling sleeve is connected with the workpiece nut, and the other end of the nut assembling sleeve is connected with the torque wrench; the nut supporting pin assembly is connected with the nut force arm, wherein the nut supporting pin assembly is assembled on a supporting shaft of a workpiece; the end part of the torque wrench is connected with a central hole of a force arm of the nut, and the torque wrench drives the nut assembling sleeve to rotate after receiving external force and screws the workpiece nut.
Furthermore, two symmetrically arranged round tables are arranged at the bottom of the nut assembling sleeve and penetrate into two grooves in the workpiece nut.
Further, the central hole of the nut assembling sleeve is designed into a spline hole and is used for being matched with a spline of a torque wrench so as to tighten the workpiece nut.
Further, the nut support pin assembly is comprised of a plurality of support pins; the top end of the supporting pin penetrates into a circular hole reserved on the nut force arm in an interference fit mode, and the bottom end of the supporting pin penetrates into a circular hole on the supporting shaft in a clearance fit mode.
Further, the inner diameter of a round hole in the nut force arm is 20mm, the outer diameter of the bottom end of the supporting pin is 15.5mm, and the inner diameter of a round hole in the supporting shaft is 16 mm.
Further, the number of the plurality of supporting pins is five, and the five supporting pins are distributed on the nut force arm in a circumferential mode.
Furthermore, the central hole of the force arm of the nut is arranged to be a square hole and is used for being matched with the square end part of the torque wrench.
Furthermore, the torque wrench adopts a pneumatic wrench, and the torque wrench drives the nut assembling sleeve to rotate after receiving the air source.
The utility model discloses beneficial effect:
the utility model discloses a screw up mechanism simple structure, the cooperation requirement is not high, and processing is convenient, and low cost in the assembly work process, operation simple accurate, convenient assembling is laborsaving, reduces workman's intensity of labour, shortens the assemble duration, has improved the efficiency of assembly greatly.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, 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 without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
fig. 1 is a schematic view of a nut tightening mechanism of the present invention;
FIG. 2 is a schematic view of the support pin of the present invention;
fig. 3 is a schematic diagram of the force arm of the nut of the present invention (a is a front view, b is a top view);
fig. 4 is a sectional view and a plan view (a is a front view, b is a view from a-a) of the nut fitting sleeve of the present invention;
fig. 5 is an assembly schematic view of the nut tightening mechanism of the present invention.
The attached drawings are as follows: 1. assembling a sleeve with a nut; 2. a nut moment arm; 3. a support pin; 4. a workpiece nut; 5. and a support shaft.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, 2, 3, 4, 5, a nut tightening mechanism includes a nut fitting sleeve 1, a nut moment arm 2 and a nut support pin assembly; one end of the nut assembling sleeve 1 is connected with the workpiece nut 4, and the other end of the nut assembling sleeve is connected with the torque wrench; the nut supporting pin assembly is connected with the nut force arm 2, wherein the nut supporting pin assembly is assembled on a supporting shaft 5 of a workpiece; the end part of the torque wrench is connected with the central hole of the force arm 2 of the nut, the torque wrench drives the nut assembling sleeve 1 to rotate after receiving external force, and the workpiece nut 4 is screwed tightly, so that the requirement of the torque of 7500N.m is met.
A preferred embodiment of the above embodiment is given below with respect to a nut fitting sleeve:
as shown in fig. 4, the bottom of the nut assembling sleeve 1 is provided with two symmetrically arranged round tables which penetrate into two grooves on the workpiece nut 4. The central hole of the nut assembling sleeve 1 is designed into a spline hole and is used for being matched with a spline of a torque wrench so as to tighten the workpiece nut 4.
The following is a preferred embodiment of the above embodiment with respect to the nut support pin assembly:
as shown in fig. 2 and 3, the nut support pin assembly is composed of a plurality of support pins 3; the top end of the supporting pin 3 penetrates into a circular hole reserved on the nut force arm 2 in an interference fit mode, and the bottom end of the supporting pin 3 penetrates into a circular hole on the supporting shaft 5 in a clearance fit mode. The central hole of the nut force arm 2 is a square hole which is used for matching with the square end part of the torque wrench.
The preferred scheme is as follows: the nut force arm 2 is made of No. 45 steel, the inner diameter of a round hole in the nut force arm 2 is 20mm, the outer diameter of the bottom end of the supporting pin 3 is 15.5mm, and the inner diameter of a round hole in the supporting shaft 5 is 16 mm.
The preferred scheme is as follows: the number of the supporting pins 3 is five, and the five supporting pins 3 are distributed on the nut force arm 2 in a circumferential mode.
The preferred scheme is as follows: the torque wrench adopts a pneumatic wrench, and the torque wrench drives the nut assembling sleeve 1 to rotate after receiving an air source.
As shown in fig. 5, the utility model discloses under normal operating condition, two bosss and two recesses of work piece nut 4 are associative are made to nut assembly sleeve 1 bottom, the other end passes through the internal spline and couples with torque wrench, the assembly of 3 one ends of supporting pin is on the nut arm of force 2, the other end assembly is on the supporting axle 5 of work piece, play the effect of supporting and fixed work piece, torque wrench end portion four sides links with 2 hole four sides of the nut arm of force, fix the work piece through supporting pin 3, torque wrench receives and drives work piece nut 4 through the spline after the air supply and rotates, and carry out the nut and screw up, in order to reach the required moment of work piece nut 4.
The utility model discloses a nut tightening mechanism simple structure, in the assembly work process, easy operation is reliable and easy, and convenient assembling is laborsaving, and the workman's that significantly reduces intensity of labour shortens assemble duration, improves the efficiency of assembly.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Furthermore, those skilled in the art will appreciate that although some embodiments described herein include some features included in other embodiments instead of others, combinations of features of different embodiments are also meant to be within the scope of the invention and form different embodiments. For example, in the above embodiments, those skilled in the art can use the combination according to the known technical solutions and technical problems to be solved by the present application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical matters of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a nut tightening mechanism which characterized in that:
the nut assembling device comprises a nut assembling sleeve, a nut force arm and a nut supporting pin assembly;
one end of the nut assembling sleeve is connected with the workpiece nut, and the other end of the nut assembling sleeve is connected with the torque wrench;
the nut supporting pin assembly is connected with the nut force arm, wherein the nut supporting pin assembly is assembled on a supporting shaft of a workpiece;
the end part of the torque wrench is connected with a central hole of a force arm of the nut, and the torque wrench drives the nut assembling sleeve to rotate after receiving external force and screws the workpiece nut.
2. A nut tightening mechanism according to claim 1, wherein:
the bottom of the nut assembling sleeve is provided with two symmetrically arranged round tables which penetrate into two grooves on the workpiece nut.
3. A nut tightening mechanism according to claim 1, wherein:
the central hole of the nut assembling sleeve is a spline hole and is used for being matched with a spline of a torque wrench so as to tighten the workpiece nut.
4. A nut tightening mechanism according to claim 1, wherein:
the nut support pin assembly is composed of a plurality of support pins;
the top end of the supporting pin penetrates into a circular hole reserved on the nut force arm in an interference fit mode, and the bottom end of the supporting pin penetrates into a circular hole on the supporting shaft in a clearance fit mode.
5. A nut tightening mechanism according to claim 4, wherein:
the inner diameter of a round hole in the nut force arm is 20mm, the outer diameter of the bottom end of the supporting pin is 15.5mm, and the inner diameter of a round hole in the supporting shaft is 16 mm.
6. A nut tightening mechanism according to claim 4, wherein:
the number of the support pins is five, and the five support pins are distributed on the nut force arm in a circumferential mode.
7. A nut tightening mechanism according to claim 1, wherein:
the central hole of the force arm of the nut is a square hole and is used for being matched with the square end part of the torque wrench.
8. A nut tightening mechanism according to claim 1, wherein:
the torque wrench adopts a pneumatic wrench, and the torque wrench drives the nut assembling sleeve to rotate after receiving an air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342806.4U CN214643215U (en) | 2021-02-07 | 2021-02-07 | Nut tightening mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120342806.4U CN214643215U (en) | 2021-02-07 | 2021-02-07 | Nut tightening mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214643215U true CN214643215U (en) | 2021-11-09 |
Family
ID=78446858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120342806.4U Active CN214643215U (en) | 2021-02-07 | 2021-02-07 | Nut tightening mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214643215U (en) |
-
2021
- 2021-02-07 CN CN202120342806.4U patent/CN214643215U/en active Active
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