CN210660990U - Three-level anti-loosening locking mechanism for shaft end nut - Google Patents
Three-level anti-loosening locking mechanism for shaft end nut Download PDFInfo
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- CN210660990U CN210660990U CN201920922274.4U CN201920922274U CN210660990U CN 210660990 U CN210660990 U CN 210660990U CN 201920922274 U CN201920922274 U CN 201920922274U CN 210660990 U CN210660990 U CN 210660990U
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Abstract
The utility model discloses a three-stage anti-loose locking mechanism for a shaft end nut, which relates to the technical field of automobile part design and comprises a bracket; the driving motor is arranged on the bracket; the driving flange is arranged on a driving shaft of the driving motor; the locking nut is arranged on a driving shaft of the driving motor, anti-loosening glue is coated between the locking nut and threads of the driving shaft of the driving motor, the outer end face of the locking nut is connected with the driving flange, and the locking nut is provided with a threaded hole which is right opposite to the driving shaft of the driving motor; the fastening pin penetrates through the locking nut and then is connected with a driving shaft of the driving motor; the back fastening nut is arranged on the fastening pin and is abutted against the locking nut; the lock plate is installed on the driving flange and is provided with an inner square groove corresponding to the locking nut. The beneficial effects of the utility model are that, three locking modes and project organization between driving wheel axle and the driving flange, special lock nut adds the structure that set screw adds the jam plate promptly, the lax phenomenon that can greatly reduced driving flange.
Description
Technical Field
The utility model relates to an automobile parts designs technical field, especially a tertiary locking mechanism that prevents of axle head nut.
Background
The wheel limit hydraulic motor axle directly drives locking structure of high reliability under the condition of drive flange, nevertheless owing to need install braking system additional, lead to axle head lock nut to sink inside the drive flange, and fluting bolt lock nut can't be used, needs the special structure of design to prevent that the nut is not hard up.
To solve the above problems, there are the following methods: firstly, the slotted nut is used for preventing looseness, and the defects that the requirement on the size of an inner hole of a driving flange is large, the wall thickness of the driving flange is small, the strength is influenced, or a rim needs to be specially customized, and the cost is increased; secondly, double nuts are used for preventing looseness, and the defect that the double nuts are low in axial load bearing capacity, and once the external nuts loosen, the connection is failed; thirdly, the wedge-shaped key is used for preventing looseness, and the wedge-shaped key has the defects of difficult disassembly and poor axial load bearing capacity; fourthly, the shaft end plate with multiple holes and the bolt/screw combination are used for preventing looseness, the defect that the diameter of the driving shaft is required to be large, the structure with multiple threaded holes is available, axial clearance adjustment needs to be achieved through the mode of increasing and decreasing the gaskets, operation is complex, and cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at preventing the lax problem of lock nut between driving motor and the driving flange, designed a tertiary locking mechanism that prevents of axle head nut.
In order to achieve the above object, the technical scheme of the utility model be, a three-level locking mechanism of shaft end nut, including the support, still include: a drive motor mounted on the bracket; a drive flange mounted on a drive shaft of the drive motor; the locking nut is arranged on the driving shaft of the driving motor, sealant is coated between the locking nut and threads of the driving shaft of the driving motor, the outer end face of the locking nut abuts against the driving flange, and the locking nut is provided with a threaded hole which is opposite to the driving shaft of the driving motor; the fastening pin penetrates through the locking nut and abuts against a driving shaft of the driving motor; the back tightening nut is arranged on the tightening pin and abuts against the locking nut; and the locking plate is arranged on the driving flange and is provided with an inner square groove corresponding to the locking nut.
Furthermore, the locking plate is provided with an inner hexagonal groove, and the outer end part of the back nut is in an outer hexagonal shape.
Further, the locking plate is mounted on the driving flange through a fastening bolt.
The utility model has the advantages that: three anti-loosening modes and design structures between the driving wheel shaft and the driving flange, namely a structure that a special locking nut is used for tightening a set screw and a locking plate, can greatly reduce the loosening phenomenon of the driving flange.
Drawings
FIG. 1 is a schematic cross-sectional view of a three-stage anti-loose locking mechanism of the present application;
FIG. 2 is a partial schematic view of a portion of the three-stage anti-loose locking mechanism of the present application.
In the above figures, 1, a support; 2. a drive motor; 3. a drive flange; 4. locking the nut; 5. a fastening pin; 6. tightening the nut; 7. a lock plate; 8. and (5) tightening the bolts.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given to the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments as follows:
a three-stage anti-loose locking mechanism of a shaft end nut is shown in figures 1 and 2 and comprises a support 1, a driving motor 2, a driving flange 3, a locking nut 4, a fastening pin 5, a back fastening nut 6 and a locking plate 7.
The drive motor 2 is mounted on the carriage 1. The drive flange 3 is mounted on the drive shaft of the drive motor 2. The brake drum, the rim and the tire are sequentially fixed on the driving flange and can rotate along with the driving flange, and when the brake shoe of the drum brake is expanded and tensioned, the brake drum achieves the purpose of braking and decelerating.
The lock nut 4 is provided on the drive shaft of the drive motor 2, and the outer end face of the lock nut 4 abuts against the drive flange 3. Sealant is coated between the locking nut 4 and the threads of the driving shaft of the driving motor 2 to form first anti-loosening. The center of the outer end of the locking nut 4 is provided with a threaded hole which is aligned with the driving shaft of the driving motor 2 opposite to the shaft.
The fastening pin 5 is pressed against the driving shaft of the driving motor 2 after passing through the lock nut 4. The back-up nut 6 is arranged on the tightening pin 5 and is anti-loose against the locking nut 4. Because the driving flange 3 and the driving motor 2 are in conical surface fit, the fit clearance is increased after long-time movement, and the locking nut 4 can be loosened due to the fact that the locking nut bears axial intermittent load, and therefore the second anti-loosening effect can be achieved through the design.
The locking plate 7 is installed on the driving flange 3 through a fastening bolt 8, and the locking plate 7 is provided with an inner square groove corresponding to the locking nut 4. Here, it is possible to adopt a configuration in which the lock plate 7 is provided with an inner hexagonal groove and the back nut 6 has an outer hexagonal shape. When the locknut 4 rotates due to loosening, the inner square groove of the locking plate 7 can prevent the loosening, thereby playing a third anti-loosening role.
Every anti-loosening measure of this application all has the locking, can ensure furthest's safety guarantee.
The invention has been described above with reference to a preferred embodiment, but the scope of protection of the invention is not limited thereto, and various modifications can be made and equivalents can be substituted for elements thereof without departing from the scope of the invention, and features mentioned in the various embodiments can be combined in any way as long as there is no structural conflict, and any reference sign in the claims should not be construed as limiting the claim concerned, and the embodiments should be regarded as being exemplary and non-limiting in any way whatsoever. Therefore, all technical solutions that fall within the scope of the claims are within the scope of the present invention.
Claims (3)
1. The utility model provides a three-level locking mechanism that looses of shaft end nut, includes support (1), its characterized in that still includes:
a drive motor (2), the drive motor (2) being mounted on the support (1);
a drive flange (3), the drive flange (3) being mounted on a drive shaft of the drive motor (2);
the locking nut (4) is arranged on a driving shaft of the driving motor (2), sealant is coated between threads of the locking nut (4) and the driving shaft of the driving motor (2), the outer end face of the locking nut (4) abuts against the driving flange (3), and the locking nut (4) is provided with a threaded hole which is opposite to the driving shaft of the driving motor (2);
the fastening pin (5) penetrates through the locking nut (4) and abuts against a driving shaft of the driving motor (2);
the back tightening nut (6), the back tightening nut (6) is arranged on the tightening pin (5) and is abutted against the locking nut (4); and
the locking plate (7), install locking plate (7) on drive flange (3), locking plate (7) be equipped with the corresponding inside square groove of lock nut (4).
2. The three-stage anti-loose locking mechanism for the shaft end nut as claimed in claim 1, wherein the locking plate (7) is provided with an inner hexagonal groove, and the outer end part of the back nut (6) is in an outer hexagonal shape.
3. The three-stage anti-loose locking mechanism for the shaft end nut as claimed in claim 1, characterized in that the locking plate (7) is mounted on the driving flange (3) through a fastening bolt (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922274.4U CN210660990U (en) | 2019-06-19 | 2019-06-19 | Three-level anti-loosening locking mechanism for shaft end nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920922274.4U CN210660990U (en) | 2019-06-19 | 2019-06-19 | Three-level anti-loosening locking mechanism for shaft end nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660990U true CN210660990U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920922274.4U Active CN210660990U (en) | 2019-06-19 | 2019-06-19 | Three-level anti-loosening locking mechanism for shaft end nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159638A (en) * | 2019-06-19 | 2019-08-23 | 青岛同辉汽车技术有限公司 | A kind of shaft end nut three-level anti-loosening locking mechanism |
-
2019
- 2019-06-19 CN CN201920922274.4U patent/CN210660990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159638A (en) * | 2019-06-19 | 2019-08-23 | 青岛同辉汽车技术有限公司 | A kind of shaft end nut three-level anti-loosening locking mechanism |
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